Accurately-metering automatic ink injection machine

Abstract

The invention relates to an accurately-metering nondestructive automatic ink injection machine. The ink injection machine comprises a shell, a vacuum pump arranged in the shell, a negative pressure main valve, a waste liquid tank, a control module, and at least one set of ink injection units, wherein the vacuum pump is connected with the waste liquid tank through the negative pressure main valve; and the waste liquid tank is connected with each set of ink injection units. The automatic ink injection machine is suitable for injecting ink to various ink boxes with a structure such as an ink box and sprayer head integrated structure, an ink box and sprayer head separated structure, an in-box sponge structure, an in-box non-sponge structure, and the like, which means the automatic ink injection machine can inject ink to all most ink boxes on the market; thus, the automatic ink injection machine has a wide application range. When the ink is injected, the sponge structure is protected from being damaged and the sprayer heat from being worn, and the regeneration times of the ink box can be increased to a maximum extent to save the cost of a user. When the ink injection is finished, the ink can be fully filled to an ink spray nozzle, the automatic ink injection machine can be directly arranged on a printer for use and the ink does not need to be absorbed to the ink spray nozzle from the sprayer head with negative pressure.

Description

technical field [0001] The invention belongs to the technical field of recycling ink cartridges of inkjet printers, in particular to a non-destructive automatic ink filling machine capable of accurate metering. Background technique [0002] With the rapid popularization of computers in engineering, scientific research, office fields and families, it has driven the rapid popularization of its standard peripherals - printers. Printers are devices that print images, graphics and text from computers onto paper. In terms of printer development, it can be divided into dot matrix printers, laser printers and the latest inkjet printers. Dot matrix printers are gradually eliminated due to their slow speed, poor precision, and high noise, and they only play their role in the fields of bank, supermarket and bills; laser printers occupy a large market in the office field, but color laser printers are still difficult to obtain due to price issues. Rapid popularity; color inkjet printers...

AI Technical Summary

Problems solved by technology

[0008] 1. Put the ink cartridge into the vacuum chamber to evacuate. The air in the sponge in the ink cartridge cannot be completely sucked away, so that the injected ink will not be completely filled to the nozzle of the nozzle. After ink injection, it needs to be sucked by negative pressure from the nozzle. After the ink reaches the nozzle, it can be printed on the machine, otherwise it cannot be printed immediately, and it needs to be left for a period of time to allow the ink to move the ink to the nozzle under the action of atmospheric pressure

[0009] 2 Before filling ink, you need to tear off the sticker on the ink cartridge, or open the plug or ball on the ink cartridge, or even drill a hole in the box body, and then insert the needle into the box. After filling the ink, remove the sticker on the ink cartridge , plug or ball reduction, this process is cumbersome and easy to damage the structure of the cartridge, resulting in permanent damage to the cartridge

[0010] 3 The ink filling needle must penetrate into the sponge of the ink cartridge, which destroys the tissue structure and water absorption of the sponge, and the number of refills is limited, reducing the repeated service life of the ink cartridge

[0011] 4. When filling ink, the ink filling needle must penetrate into the bottom of the ink cartridge, which can easily pierce the filter in the ink cartridge, resulting in the ink cartridge being permanently damaged due to impurities in the ink directly settling to the nozzle due to no filter filtering.

[0012] 5. Peristaltic pump quantification adopts time control quantification, which requires the consistency and stability of the motor. According to this requirement, the manufacturing cost will be increased

Even with the best DC motor, a long running time will lead to serious quantitative deviation

In addition, the rubber hose is rolled over by the roller for a long time, causing the hose to deform and age, and the number of drops squeezed out per unit time is different, resulting in deviation

[0013] 6. There are a large part of ink cartridges, which is close to about 40% of the total ink cartridges on the market. The box body is not a sponge structure, but an airway or reed structure or an airbag structure. It is impossible to inject needles into the ink cartridges. This method has caused a lot of ink cartridges to be regenerated, and the range of renewable ink cartridge models is greatly limited

[0016] 1 This method is only applicable to ink cartridges with integrated ink cartridges and nozzles, and ink cartridges that account for almost 50% of the market are ink cartridges with separate nozzles and ink cartridges. The method of refilling ink from the nozzle cannot be used, which limits the number of ink cartridges that can be filled. scope

[0017] 2. For ink cartridges with nozzles, the nozzles are easily blocked due to dry ink. Once the nozzles are blocked, ink injection from the nozzles will be very slow, or even completely impossible to inject, and the amount of ink injection cannot be set, so the premise of positive pressure ink injection The condition is that the ink cartridge is not blocked, and the nozzle should be cleaned before filling the ink. Improper pre-treatment of the nozzle will not complete the ink filling, which will undoubtedly improve the quality requirements of the operators and increase the cost of the ink filling service; Liability disputes between the operator and the customer

This method is difficult to implement, the manufacturing cost is high, the sales price is also high, and the market has limitations

[0019] 4 The nozzles of the ink cartridges will be worn during the positive pressure ink filling process, which will cause the nozzles to deform one by one, resulting in a decline in the printing effect, thus limiting the number of refills

[0020] 5 Due to the positive pressure ink injection, in order to ensure the airtightness of the ink injection pipeline, the pressure resistance of related components and components must be improved, which increases the equipment manufacturing cost

[0021] 6. The amount of ink injected from the nozzle is the capacity of the fixed syringe. If you want to change the amount of ink, you must adjust the stroke of the cylinder that pushes the piston. You must adjust it every time you change it. You cannot set the amount of ink injected.

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