CN201275924Y - Continuous ink feed apparatus for ink-jet printer - Google Patents

Abstract

The utility model relates to an ink box used for an inkjet printer. Including the ink storage chamber for storing ink, the ink outlet for supplying ink to the print head of the printer, the air inlet channel and the air inlet for the gas to replenish the ink space consumed by printing, the air inlet channel and the air inlet The air inlet is arranged at the ink outlet and communicated with the ink outlet, and the ink outlet is provided with a sealing film. Since the air inlet is arranged at the ink outlet and communicates with the ink outlet, a sealing film is arranged on the ink outlet. When the ink supply needle pierces the sealing film, the air communicates with the air inlet through the gap between the sealing film and the ink supply needle, so that the air can enter the ink cartridge cavity, replenish the ink space consumed by printing, and maintain the ink cartridge cavity. The balance pressure ensures that the ink cartridge can print normally, and at the same time reduces the parts such as valves and valve seats, greatly reduces the production process and reduces the production cost.

Description

A kind of ink cartridge for inkjet printer

technical field

The utility model relates to printer equipment, in particular to an ink box used for an inkjet printer.

Background technique

The main structure of an existing ink cartridge for an inkjet printer includes an ink storage cavity for storing ink, an ink outlet for supplying ink to the print head of the printer, and an air inlet. In order to ensure that the ink cartridge can print normally, it is necessary to continuously replenish the ink space consumed by printing through the air inlet part during the printing process to maintain the pressure balance in the ink cartridge cavity and ensure that the ink cartridge can print normally. The air inlet part generally adopts the following technical scheme. As shown in Figure 1, the air inlet part is composed of an air guide film a and an air guide hole b. tear off the film before loading it into the printer. The function of tearing off the air guide film is to make the atmosphere and the inside of the ink cartridge cavity conduct, so that the air can enter the ink cartridge cavity through the air guide hole, replenish the ink space consumed by printing, maintain the balance pressure in the ink cartridge cavity, and ensure that the ink cartridge can Print normally. The air guide film can also be a sealing gasket such as silica gel. When using it, it is also necessary to remove the seal first, let the air guide hole open first, and then put the ink cartridge into the printer. However, this solution needs to add additional precautions to the user, that is, before using the ink cartridge, the user must first remove the air-conducting film blocking the air-guiding hole or other objects used to seal the air-guiding hole, which increases the user's use. difficulty. If the user forgets to remove the object blocking the air guide hole, and then installs the ink cartridge into the printer, it may cause the ink in the print head to be sucked back into the ink cartridge and damage the print head. In order to overcome the deficiencies of the above-mentioned technologies, some manufacturers have adopted the scheme shown in Figure 2, that is, the air inlet part is composed of a valve c and a valve seat d installed on the cartridge shell, and its working principle is: when the cartridge is loaded into the printer At this time, the pushing device e inside the printer contacts the valve and separates the valve and the valve seat, so that the air can enter the ink cartridge cavity through the gap between the valve and the valve seat, replenish the ink space consumed by printing, and maintain the ink cartridge cavity. Balanced pressure to ensure that the ink cartridge can print normally, but this solution requires the valve and the valve seat to be used together, and the valve needs to be made of special materials to ensure that it can be sealed with the valve seat, which increases the spare parts of the ink cartridge and increases the production process. Further increase the manufacturing cost.

Utility model content

The utility model provides an ink cartridge for an inkjet printer to solve the problem of increasing the production process and manufacturing process of the existing ink cartridge for the inkjet printer because the user must first remove the defect of the air guide film on the air guide hole before using the ink cartridge. cost technical issues.

In order to solve the above technical problems, the technical scheme that the utility model takes is:

An ink box for an inkjet printer, comprising an ink storage cavity for storing ink, an ink outlet for supplying ink to the print head of the printer, an air inlet passage for making gas supplement the ink space consumed by printing, and an inlet The air port communicates with the air inlet channel and the air inlet, and the feature is that the air inlet is arranged at the ink outlet and communicates with the ink outlet, and the ink outlet is provided with a sealing film.

A sealing ring is arranged inside the ink outlet, a groove is arranged at the sealing end of the sealing ring, and the air inlet is arranged on a side wall of the groove.

There is also a slit in the groove of the sealing ring corresponding to the position where the ink supply needle is inserted.

A plurality of spare air inlets are also arranged on the side wall of the groove of the sealing ring.

After adopting the above technical solution, since the air inlet is arranged at the ink outlet and communicates with the ink outlet, the ink outlet is provided with a sealing film. When the ink supply needle pierces the sealing film, the air communicates with the air inlet through the gap between the sealing film and the ink supply needle, so that the air can enter the ink cartridge cavity, replenish the ink space consumed by printing, and maintain the ink cartridge cavity. Balanced pressure, to ensure that the ink cartridge can print normally, while reducing parts such as valves and valve seats, greatly reducing the production process, reducing production costs, and solving the problem of existing ink cartridges used for inkjet printers. The technical problem of increasing the production process and manufacturing cost is caused by firstly removing the defects of the air guide film on the air guide hole. In addition, since the ink outlet is provided with a sealing ring, the sealing end of the sealing ring is provided with a groove, the air inlet is arranged on the side wall of the groove, and a plurality of spare air inlets are also arranged on the side wall of the groove of the sealing ring. When the position of the sealing ring is adjusted to other positions, there are multiple spare air inlets communicating with the air intake channel, which reduces the assembly accuracy of the sealing ring.

Description of drawings:

1 and 2 are structural schematic diagrams of the prior art.

Fig. 3 is a schematic diagram of the structure principle of the utility model.

Fig. 4 is a schematic diagram of the three-dimensional structure of the utility model.

Fig. 5 is a schematic cross-sectional structure diagram of the sealing ring in the present invention.

Fig. 6 is a three-dimensional schematic diagram of the sealing ring in the present invention.

Fig. 7 is a schematic perspective view of the three-dimensional structure of the seal ring provided with multiple spare air inlets in the present invention.

Detailed ways

As shown in Figures 3 and 4, an ink cartridge for an inkjet printer includes an ink storage chamber for storing ink, an ink outlet for supplying ink to the print head of the printer, and an ink cartridge for supplementing gas consumed by printing. The air inlet passage 1 and the air inlet 2 of the ink space, the air inlet passage 1 and the air inlet 2 communicate, and the sealing ring 4 is arranged in the ink outlet, as shown in Figures 5 and 6, the sealing end of the sealing ring 4 is provided with a concave The groove 6 and the air inlet 2 are arranged on the side wall of the groove 6, and the sealing film 3 is arranged on the ink outlet. A slit 7 is also provided in the groove 6 of the sealing ring 4 at the position where the ink supply needle 5 is inserted. The sealing ring 4 can also be set to a structure as shown in Figure 7, that is, a plurality of spare air inlets are arranged on the side wall of its groove 6, so that when the sealing ring 4 is adjusted to other positions, there are multiple spare air inlets. The mouth communicates with the intake channel to form the intake port 2. When the ink cartridge is loaded into the printer, when the ink supply needle 5 pierces the sealing film 3, the atmosphere communicates with the air inlet 2 on the sealing ring 4 through the gap between the sealing film 3 and the ink supply needle 5, so that the atmosphere is It can enter the cavity of the ink cartridge, replenish the ink space consumed by printing, maintain the pressure balance in the cavity of the ink cartridge, and ensure that the ink cartridge can print normally. Along with the continuous loading of the ink cartridge, the ink supply needle 5 pierces the sealing ring 4, and the ink supply needle 5 communicates with the ink chamber, thus ensuring the ink supply of the printer. The slit 7 provided in the groove 6 of the seal ring 4 corresponding to the position where the ink supply needle 5 is inserted can ensure that the ink supply needle 5 can be easily inserted, and the other parts of the seal ring 4 tightly wrap the ink supply needle 5 , but also to ensure the seal of the sealing ring 4 and the ink supply needle 5.

Claims (4)

1, a kind of print cartridge that is used for ink-jet printer, comprise the ink storage chamber that is used to store ink, to the ink outlet port of the printhead ink supply of printer, be used to make the inlet channel and the air inlet in the ink space that gas make-up consumes because of printing, inlet channel and air inlet communicate, it is characterized in that, described air inlet is arranged at ink outlet port and communicates with ink outlet port, and described ink outlet port is provided with and seals film.

2, the print cartridge that is used for ink-jet printer as claimed in claim 1 is characterized in that, is provided with sealing ring in the described ink outlet port, and the sealing end of described sealing ring is provided with groove, and described air inlet is arranged on the sidewall of groove.

3, the print cartridge that is used for ink-jet printer as claimed in claim 2 is characterized in that, the position that corresponding ink supply pin inserts in the groove of described sealing ring also is provided with a finedraw.

4, the print cartridge that is used for ink-jet printer as claimed in claim 2 is characterized in that, also is provided with a plurality of standby air inlets on the sidewall of described o-ring groove.

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