TW201821291A - Filtering structure of ink bag ensures the quality of ink flowing out of the ink bag and maintains proper output flow - Google Patents

Abstract

The filtering structure of the ink bag comprises a joint and a bag body. The joint is connected with the bag body, and formed with a sealed space in the bag body. The joint contains an ink channel, which is communicated with the space. A filtering unit is fixed to the first channel opening of the ink channel facing the ink bag. The aperture of the filtering unit is 5 to 30 microns, and the filtering unit covers the ink channel, so that the ink filled in the bag body can only flow out after being filtered by the filtering unit, thereby ensuring the quality of ink flowing out of the ink bag and maintaining proper output flow.

Description

Filter structure of ink bag

The invention relates to the technical field of a filter structure of an ink bag, and particularly to a design capable of maintaining the quality of the ink flowing out of the ink bag.

Inkjet printers can be divided into two types, thermal bubble inkjet and piezoelectric inkjet, depending on the inkjet method. Among them, the thermal bubble inkjet technology allows ink to pass through a thin nozzle, and under the action of a heating resistor, vaporizes a part of the ink in the nozzle pipe into bubbles, and ejects the ink at the nozzle onto the surface of the object to form a pattern. Or characters. The piezoelectric inkjet technology places many small piezoelectric ceramics near the nozzle of the print head, and uses the principle that it will deform under the action of voltage, and timely applies a voltage to it to make the piezoelectric ceramics With the expansion and contraction, the ink in the nozzle is ejected, and a pattern or a character is formed on the surface of the object. Among them, there are many factors that affect the quality of inkjet printing. In addition to the performance or precision of the machine itself, the quality of the ink used is also very important. In recent years, inkjet images have become more and more fine. The number of dots that can be printed by an inkjet printer in the range of one inch. When the DPI is higher, the number of dots can be printed. Once the ink color used has impurities or is too rough, the printing nozzle will be blocked and serious. Affects print quality.

In the production of ink, it is possible to mix appropriate components in a closed container or environment to reduce the generation of impurities. This part is easier to control. However, during the packaging filling process, the dust of the machine operation or the impurities remaining in the packaging bag are sometimes not easy to occur, so that there is impurities in the filled ink bag. When the finished ink cartridge is installed on the printing table, When the printer is turned on, it is easy to cause the printing nozzle to be blocked. For this reason, the inventor has considered a solution to maintain the output quality of the ink for a long time.

The main object of the present invention is to provide a filter structure of an ink bag, which is mainly provided with a filter unit at the joint of the ink bag, thereby maintaining and ensuring the quality of the ink flowing out of the ink bag.

The main object of the present invention is to provide a filter structure for an ink bag connector, wherein the filter unit also has the effect of maintaining an appropriate flow rate, reducing the pressure of the rubber body used for sealing the connector, and reducing the ink infusion of the printer during the ink supply process. Bleeding occurs between the needle and the connector.

To achieve the above objective, the present invention includes a joint and a bag body, the joint is connected with the bag body, and forms a closed space inside the bag body, the joint has an ink channel, and the ink channel is connected to the space It is characterized in that a filter unit is fixed to the first passage opening of the ink channel facing the ink bag, and the filter unit has a hole diameter of 5 ~ 30um and covers the ink channel, so that the ink filled in the bag body must pass through The filtering unit can only flow out after filtering.

In the present invention, the filter unit is at least one of a filter screen, a filter membrane, a filter paper, and a porous filter material, so that the most appropriate structure is selected according to the nature of the ink.

Furthermore, the filter unit body of the present invention may be a sheet-shaped, plate-shaped, or three-dimensional filter material. If the filter unit is a three-dimensional filter material, the surface area will increase, and when part of the area is blocked by impurities, the output flow will be less affected. .

The following describes the embodiments of the present invention in more detail with reference to the drawings and component symbols, so that those skilled in the art can implement them after studying this specification.

As shown in FIG. 1, it is a perspective view of the ink bag of the present invention. The ink bag of the present invention includes a joint 1 and a bag body 2. The joint 1 is connected to the opening of the bag body 2 by high frequency or heat pressing. A closed space is formed inside the bag body 2 for containing ink. The main improvement of the present invention is the structure of the joint 1. The shape and structure of the bag body 2 are similar to conventional ones, so they will not be described in detail.

As shown in Figs. 2 and 3, it is a perspective view and a sectional view of the first embodiment of the present invention. The shape of the joint 1 is bounded by the middle, and includes an adhesive part 11 on the upper half and a socket part 12 on the lower half. The adhesive member 11 is shaped like a rhombus, which is convenient for high frequency bonding with the bag body 2. This shape is not a fixed type, and can be freely changed according to the needs of the designer. The sleeve 12 is cylindrical, and the surrounding tube wall is protruded with multiple rings. The shape of the sleeve 12 must match the docking structure of the printer or the docking structure of the ink cartridge of the continuous ink supply device. . The connector 1 has an ink passage 13 inside, the ink passage 13 runs through the whole longitudinally, and has a first passage opening 131 and a second passage opening 132 at both ends. The second passage opening 132 is an outlet for the ink to flow to the printer. The section of the ink passage 13 near the second passage opening 132 has a larger aperture, and a rubber body 14 is fixed. The rubber body 14 is used to temporarily seal the ink channel 13. The rubber body 14 can be inserted and penetrated by an ink infusion needle of a printer, and can output ink when the machine is operating. In addition, the first passage opening 131 faces the bag body 2.

The key point of the design of the present invention is that a filter unit 3 is fixed to the ink passage 13 facing the first passage opening 131 of the ink bag 2, and the filter unit 3 covers the ink passage 13 so that the ink in the bag body 2 It must be filtered by the filtering unit 3 before it can flow out. The pore diameter of the filtering unit 3 is between 5 and 30um. The purpose is to ensure the quality of the ink flowing out and maintain an appropriate output flow. The filter unit 3 may be at least one of a filter screen, a filter membrane, a filter paper, a porous filter material, and the like, and the material may be metal, PP, PE, or paper, etc., so that the characteristics of the ink, such as corrosive and volatile , Choose appropriate materials and structures. In this embodiment, it is a metal filter.

As shown in FIGS. 4 and 5, it is a perspective view and a sectional view of a second embodiment of the present invention. In the present invention, the structure of the filter unit 3a is mainly improved. The filter unit 3a includes a first filter body 31 and a second filter body 32 connected to each other. The cross-sectional shape of the first filter body 31 is the same as that of the ink channel 13, and the volume of the second filter body 32 may be larger than that of the first filter body.体 31。 Body 31. In this embodiment, the first filter body 31 is cylindrical, and the second filter body 32 is a pentagonal body, but it is not limited thereto. After assembly, the first filter body 31 is a partial section fixed to the ink channel 13, and the second filter body 32 is located in the bag body 2. In this embodiment, the filter unit 3 is a porous filter material. In the present invention, the shape of the filter unit 3a is used to increase the surface area and avoid affecting the output flow. Because during filtering, part of the area will block the passage of ink due to the shielding of impurities, and when the blocking area is too large, the output flow will be loudened. The structure of the filtering unit 3a in this embodiment can overcome this problem.

To sum up, in the present invention, the filter unit is fixed at the joint of the ink bag, so that the ink filled in the bag must be filtered by the filter unit before it can flow out, thereby maintaining the output quality of the ink. In addition, an appropriate flow rate can be maintained to avoid ink leakage between the rubber body and the ink infusion needle due to excessive pressure during the ink supply process.

The foregoing are merely preferred embodiments of the present invention, and are not intended to limit the scope of the embodiments of the present invention. That is, all equal changes and modifications made according to the scope of patent application of the present invention are covered by the scope of patent of the present invention.

1‧‧‧ connector

11‧‧‧ Adhesive

12‧‧‧ socket

13‧‧‧Ink channel

131‧‧‧ first entrance

132‧‧‧Second channel entrance

14‧‧‧ rubber body

2‧‧‧ bag body

3‧‧‧Filter unit

3a‧‧‧filtration unit

31‧‧‧first filter

32‧‧‧Second filter

Fig. 1 is a perspective view of an ink bag of the present invention; Fig. 2 is a perspective view of a joint of a first embodiment of the present invention; Fig. 3 is a sectional view of a joint of a first embodiment of the present invention; Fig. 4 is a joint of a second embodiment of the present invention FIG. 5 is a sectional view of a joint according to a second embodiment of the present invention.

Claims (5)

An ink bag filter structure includes a joint and a bag body, the joint is connected with the bag body, and forms a closed space in the bag body, the joint has an ink channel, and the ink channel is connected with the closed space. It is characterized in that a filter unit is fixed to the first channel opening of the ink channel facing the ink bag, and the filter unit has a hole diameter of 5 ~ 30um and covers the ink channel, so that the ink filled in the bag body must pass through the The filtering unit can only flow out after filtering. The filtering structure of the ink bag according to item 1 of the patent application scope, wherein the filtering unit is at least one of a filtering net, a filtering membrane, a filtering paper, and a porous filter material. The filter structure of the ink bag according to item 1 of the patent application scope, wherein the filter unit body is a sheet-shaped, plate-shaped or three-dimensional filter material. The filter structure of the ink bag according to item 1 of the patent application scope, wherein the filter unit includes a first filter body and a second filter body, and the first filter body has the same cross-sectional shape as the ink channel and is fixed to the ink channel. The ink channel is inside, and the second filter body is located in the bag body. The filter structure of the ink bag according to item 4 of the scope of the patent application, wherein the volume of the second filter body is larger than that of the first filter body.