High-capacity thermal foaming ink box

Abstract

The utility model provides a large-capacity thermal foaming ink box which comprises a shell, a large ink bag storage cavity used for storing ink is arranged in the shell, a plastic shell is installed on one side in the shell, an anti-corrosion upper small ink bag aluminum film is installed on the upper surface of the plastic shell, and a small ink bag filtering cavity is arranged in the plastic shell. The lower surface of the plastic shell is sunken upwards to form a lower small ink bag middle cavity, the upper surface of the plastic shell is sunken downwards to form an upper small ink bag middle cavity, and a control piece used for controlling connection and disconnection of the lower small ink bag middle cavity and the upper small ink bag middle cavity is installed between the lower small ink bag middle cavity and the upper small ink bag middle cavity. A communication hole is formed between the small ink bag jet printing cavity and the middle cavity of the lower small ink bag, an ink box spray head is installed on one side, close to the plastic shell, of one side face of the outer shell, and a small ink bag conveying channel is installed between the ink box spray head and the small ink bag jet printing cavity. It is greatly guaranteed that ink is stored in the ink box and does not leak.

Description

Technical Field

[0001] This utility model belongs to the technical field of printing equipment accessories, and specifically relates to an innovative large-capacity thermal foam ink cartridge. By optimizing the ink storage and delivery mechanism, this cartridge significantly increases the printing capacity while maintaining print quality, making it suitable for industrial and commercial environments requiring large-scale continuous printing operations. Background Art

[0002] Thermal bubble inkjet technology, which ejects ink droplets by rapidly heating ink to create bubbles, has been widely used in industrial printing and is favored by the market for its ability to provide high-quality print output. However, existing thermal bubble ink cartridges typically have a fixed capacity of 42ml. This limitation leads to frequent cartridge replacements for large-scale printing operations, increasing operating costs and time. In addition, existing ink cartridges rely on a central spring and two metal plates to maintain the internal negative pressure. As the ink is consumed, the spring gradually flattens to maintain the negative pressure. However, this design becomes inadequate as the cartridge capacity increases, easily causing ink leakage at the nozzle, affecting print quality and continuity. More seriously, if the aluminum film of the ink cartridge is not tightly sealed, the ink cartridge will directly lose its constant negative pressure, further increasing the risk of ink leakage. Therefore, to meet market demand for higher printing efficiency and lower costs, it is necessary to develop a large-capacity thermal bubble ink cartridge with a larger capacity and the ability to precisely control the negative pressure. Utility Model Content

[0003] To overcome the limited capacity and imprecise negative pressure control issues of existing thermal ink cartridges, this utility model proposes an innovative, large-capacity thermal ink cartridge. This cartridge utilizes a unique large and small ink sac design, effectively ensuring a tight seal during ink storage, preventing leakage and ensuring continuous, stable printing on thermal printing equipment.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical solutions: a large-capacity thermal foaming ink cartridge, comprising a shell, a large ink sac storage chamber for storing ink is provided in the shell, the upper surface and lower surface of the large ink sac storage chamber are respectively installed with an upper large ink sac aluminum film and a lower large ink sac aluminum film with corrosion resistance, an upper metal protective cover is installed on the upper surface of the shell, and a lower metal protective cover is installed on the lower surface of the shell, an ink injection hole for injecting ink into the large ink sac storage chamber is installed on one side of the shell, a plastic shell is installed on one side of the shell, an upper small ink sac aluminum film with corrosion resistance is installed on the upper surface of the plastic shell, and a lower small ink sac aluminum film with corrosion resistance is installed on the lower surface of the plastic shell, a small ink sac filter chamber is provided in the plastic shell, the small ink sac filter chamber is connected to the large ink sac storage chamber through the ink inlet hole, and the small ink sac filter chamber is installed with a filter for filtering ink. The ink filter screen is provided with an ink filter, the lower surface of the plastic shell is recessed upward to form a lower small ink sac middle cavity, and the upper surface of the plastic shell is recessed downward to form an upper small ink sac middle cavity, a control component for controlling whether the lower small ink sac middle cavity and the upper small ink sac middle cavity are on or off is installed between the lower small ink sac middle cavity and the upper small ink sac middle cavity, the upper small ink sac middle cavity is communicated with the small ink sac filter cavity, a small ink sac printing cavity is provided in the plastic shell, a communicating hole is provided between the small ink sac printing cavity and the lower small ink sac middle cavity, an ink cartridge nozzle is installed on one side of the shell close to the plastic shell, the ink cartridge nozzle includes a COT flexible circuit board carrier and a COT flexible circuit board, a small ink sac delivery channel is installed between the ink cartridge nozzle and the small ink sac printing cavity, the COT flexible circuit board carrier is connected to the small ink sac delivery channel, and a COT flexible circuit board is installed on the COT flexible circuit board carrier.

[0005] Furthermore, the control component includes a top seat, a middle inlet hole is provided between the middle cavity of the lower small ink bag and the middle cavity of the upper small ink bag, a base for blocking the middle inlet hole is slidably installed in the middle inlet hole, the top seat is in contact with the aluminum film of the upper small ink bag, a spring is installed on the lower surface of the top seat, a base is installed on the other end of the spring, the base is installed in the middle inlet hole, a channel for ink circulation is provided between the base and the middle inlet hole, a plurality of arc blocks arranged in a ring are installed in the middle cavity of the lower small ink bag, a plastic pressing sheet in contact with the aluminum film of the lower small ink bag is provided on the lower side of the arc block, the plastic pressing sheet and the spring are integrated into one and connected to the lower end of the base, the spring in the plastic pressing sheet is installed on the arc block, and the small ink bag printing cavity is connected to the small ink bag delivery channel.

[0006] Furthermore, the ink cartridge nozzle includes a COT flexible circuit board carrier, and the COT flexible circuit board carrier is installed on the side of the shell close to the plastic shell. The COT flexible circuit board carrier is connected to the small ink bag delivery channel. The COT flexible circuit board is installed on the COT flexible circuit board carrier, and the COT flexible circuit board controls the opening and closing of the 308 small holes thereon.

[0007] Furthermore, an upper small ink sac aluminum film is mounted on the upper end of the plastic shell by hot pressing, and a lower small ink sac aluminum film is mounted on the lower end of the plastic shell by hot pressing.

[0008] Furthermore, the large ink sac storage chamber includes a plastic white inner frame, the plastic white inner frame is installed in the outer shell, the upper end of the plastic white inner frame is installed with a corrosion-resistant upper large ink sac aluminum film by hot pressing, and the lower end of the plastic white inner frame is installed with a corrosion-resistant lower large ink sac aluminum film by hot pressing.

[0009] Furthermore, a steel ball for blocking the ink injection hole is installed in the ink injection hole, and an elastic member for keeping the steel ball blocking the ink injection hole is provided on one side of the steel ball.

[0010] Furthermore, the volume of the large ink sac storage chamber is 120 ml, and the shell is a component made of black plastic.

[0011] Beneficial effects of the utility model:

[0012] A large 120ml ink storage chamber is used to store more ink and reduce the frequency of replacement.

[0013] A delicate small ink sac filter chamber with a built-in filter is used to filter impurities in the ink to ensure print quality.

[0014] A control component, including a top seat, a spring and a base, is used to accurately control the flow of ink from the large ink sac to the small ink sac, maintaining a constant negative pressure value through a plastic pressing piece.

[0015] A COT flexible circuit board carrier, equipped with a COT flexible circuit board that controls the on / off of 308 small holes, to achieve precise ink jetting control.

[0016] This not only increases the printing capacity of the ink cartridge, but also significantly improves printing efficiency and quality through precise negative pressure control, flow control, and ink ejection. In addition, the large-capacity design reduces the frequency of ink cartridge replacement, reducing user costs, while improving the continuity and stability of printing operations.

[0017] The design of large and small ink sacs greatly ensures that the ink is stored in the ink cartridge without leakage, so that normal printing can be carried out on the thermal foaming machine. If the large ink sac storage chamber in the ink cartridge is not sealed and leaks, the small ink sac will still maintain a negative pressure state, and the ink cartridge will not lose the constant negative pressure value, ensuring that the ink cartridge can continue to be used, increasing the usable capacity of a single ink cartridge, and thus greatly reducing the cost of use.

[0018] Even if the large ink sac storage chamber loses its constant negative pressure value or the ink stored in this area is shaken violently, it will not affect the constant negative pressure value of the small ink sac, and the ink will not leak from the ink cartridge nozzle, ensuring normal printing of the ink cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0020] Figure 1 This is a schematic diagram of the explosion structure of a large-capacity thermal foaming ink cartridge of the utility model;

[0021] Figure 2 This is an exploded diagram of a spring, a top seat, a base, a plastic shell and an outer shell in a large-capacity thermal foaming ink cartridge of the utility model;

[0022] Figure 3 This is a schematic diagram of the assembly of the upper metal protective cover and the outer shell of a large-capacity thermal foaming ink cartridge of the present invention;

[0023] Figure 4 This is a schematic diagram of the assembly of the upper large ink sac aluminum film, the upper small ink sac aluminum film and the outer shell in a large-capacity thermal foaming ink cartridge of the present invention;

[0024] Figure 5 This is a schematic diagram of the assembly of the lower large ink sac aluminum film, the lower small ink sac aluminum film and the outer shell in a large-capacity thermal foaming ink cartridge of the present invention;

[0025] Figure 6 This is a schematic diagram of the assembly of the plastic shell and the outer shell in a large-capacity thermal foaming ink cartridge of the utility model;

[0026] Figure 7 This is a top view of the assembly of the plastic shell and the outer shell in a large-capacity thermal foaming ink cartridge of the utility model;

[0027] Figure 8 This is a schematic diagram of the assembly of the plastic pressing sheet, the lower large ink sac aluminum film and the outer shell in a large-capacity thermal foaming ink cartridge of the utility model;

[0028] Figure 9 This is a schematic diagram of the assembly of the aluminum film of the lower large ink sac and the outer shell of a large-capacity thermal foaming ink cartridge of the present invention;

[0029] Figure 10 for Figure 9 Enlarged view of point A in the middle;

[0030] In the figure: 1-housing, 2-ink injection hole, 3-upper metal protective cover, 4-COT flexible circuit board, 5-upper large ink sac aluminum film, 6-upper small ink sac aluminum film, 7-lower large ink sac aluminum film, 8-lower small ink sac aluminum film, 9-plastic white inner frame, 10-large ink sac storage chamber, 11-plastic shell, 12-middle inlet hole, 13-ink inlet hole, 14-small ink sac filter chamber, 15-COT flexible circuit board carrier, 16-small ink sac delivery channel, 17-small ink sac printing chamber, 18-top seat, 19-upper small ink sac middle chamber, 20-connecting hole, 21-plastic pressing sheet, 22-arc-shaped block, 23-lower metal protective cover, 24-spring, 25-base, 26-lower small ink sac middle chamber. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0032] See also Figures 1-6 The utility model provides a technical solution: a large-capacity thermal foaming ink cartridge, comprising a shell 1, wherein the shell 1 is a component made of black plastic and provided with a large ink sac storage chamber 10 for storing ink. The volume of the large ink sac storage chamber 10 is 120 ml. The large ink sac storage chamber 10 comprises a plastic white inner frame 9, which is installed in the shell 1. The upper end of the plastic white inner frame 9 is installed with an anti-corrosion upper large ink sac aluminum film 5 by hot pressing, and the lower end of the plastic white inner frame 9 is installed with an anti-corrosion lower large ink sac aluminum film 7 by hot pressing. The upper large ink sac aluminum film 5 and the lower large ink sac aluminum film 7 are installed in the plastic white inner frame 9. The membrane 7 realizes the sealing of the two ends of the plastic white inner frame 9, the upper surface of the shell 1 is installed with an upper metal protective cover 3, and the lower surface of the shell 1 is installed with a lower metal protective cover 23. The upper metal protective cover 3 and the lower metal protective cover 23 realize the sealing of the two ends of the shell 1. The upper metal protective cover 3, the lower metal protective cover 23 and the shell 1 together constitute the ink cartridge structure. An ink injection hole 2 for injecting ink into the large ink sac storage cavity 10 is installed on one side of the shell 1, and a steel ball for sealing the ink injection hole 2 is installed in the ink injection hole 2. An elastic member is provided on one side of the steel ball to keep the steel ball sealing the ink injection hole 2, and the elastic member can be a reset spring.

[0033] See Figure 1 、 Figure 2 、 Figure 4 and Figure 5 A plastic shell 11 is installed on one side of the outer shell 1, and a corrosion-resistant upper small ink sac aluminum film 6 is installed on the upper surface of the plastic shell 11, and a corrosion-resistant lower small ink sac aluminum film 8 is installed on the lower surface of the plastic shell 11. The upper small ink sac aluminum film 6 and the lower small ink sac aluminum film 8 realize the sealing of both ends of the plastic shell 11.

[0034] See Figures 1-10A small ink sac filter chamber 14 is provided in the plastic shell 11. The small ink sac filter chamber 14 is connected to the large ink sac storage chamber 10 through the ink inlet hole 13. A filter screen for filtering ink is installed in the small ink sac filter chamber 14. The lower surface of the plastic shell 11 is recessed upward to form a lower small ink sac intermediate chamber 26. The upper surface of the plastic shell 11 is recessed downward to form an upper small ink sac intermediate chamber 19. A middle inlet hole 12 is provided between the lower small ink sac intermediate chamber 26 and the upper small ink sac intermediate chamber 19. A base 25 for blocking the middle inlet hole 12 is installed in the middle inlet hole 12. The top seat 18 is fitted with the upper small ink sac aluminum film 6. A spring 24 is installed on the lower surface of the top seat 18. A base 25 is installed at the other end of the spring 24. The base 25 is installed in the middle inlet hole 12. The base 25 and the middle A channel for circulating ink is provided between the inlet holes 12, and a plurality of arc blocks 22 arranged in a ring are installed in the middle cavity 26 of the lower small ink sac. The arc blocks 22 are symmetrical with the center of the middle inlet hole 12. A plastic pressing sheet 21 is provided on the lower side of the arc block 22, which is in contact with the aluminum film 8 of the lower small ink sac. The plastic pressing sheet 21 is connected to the lower end of the base 25, and the spring in the plastic pressing sheet is installed on the arc block. The middle cavity 19 of the upper small ink sac is connected to the small ink sac filter cavity 14. A small ink sac printing cavity 17 is provided in the plastic shell 11, and a connecting hole 20 is provided between the small ink sac printing cavity 17 and the middle cavity 26 of the lower small ink sac. An ink cartridge nozzle is installed on one side of the outer shell 1 close to the plastic shell 11, and a small ink sac delivery channel 16 is installed between the ink cartridge nozzle and the small ink sac printing cavity 17.

[0035] The large ink bag storage chamber 10 and the small ink bag filter chamber 14 maintain a flow state. The base 25 blocks the middle inlet 12 due to the force of the spring 24, and ink cannot flow from the small ink bag filter chamber 14 to the lower small ink bag intermediate chamber 26. When the ink in the lower small ink bag intermediate chamber 26 is gradually consumed, the lower small ink bag aluminum film 8 is flattened, pushing the plastic pressing piece 21 toward the small ink bag filter chamber 14, thereby pushing the base 25 up, and ink flows from the small ink bag filter chamber 14 to the lower small ink bag intermediate chamber 26. After the lower small ink bag intermediate chamber 26 is filled with a certain amount of ink, the lower small ink bag aluminum film 8 returns to its original shape, the plastic pressing piece 21 also returns to its original shape, and the base 25 returns to its original shape and blocks the middle inlet 12. The large ink bag storage chamber 10 and the lower small ink bag intermediate chamber 26 are no longer in a state of communication with each other. Due to the spring in the plastic pressing piece, the lower small ink bag intermediate chamber 26, the small ink bag printing chamber 17, and the small ink bag delivery channel 16 maintain a constant negative pressure value.

[0036] Through the design of the large ink sac and the small ink sac, it is greatly guaranteed that the ink is stored in the ink cartridge without leakage, so that normal printing can be carried out on the thermal foaming machine. If the large ink sac storage chamber 10 in the ink cartridge is not sealed and leaks, the small ink sac will still be in a negative pressure state, and the ink cartridge will not lose the constant negative pressure value in the end, ensuring that the ink cartridge can continue to be used, increasing the usage capacity of a single ink cartridge, and thus greatly reducing the cost of use. If the large ink sac storage chamber 10 loses the constant negative pressure value or the ink stored in this area is shaken violently, it will not affect the constant negative pressure value of the small ink sac, and the ink will not leak from the ink cartridge nozzle, ensuring normal printing of the ink cartridge.

[0037] The ink cartridge nozzle includes a COT flexible circuit board carrier 15 and a COT flexible circuit board 4. The COT flexible circuit board carrier 15 is installed on the side of the shell 1 close to the plastic shell 11. The COT flexible circuit board carrier 15 is connected to the small ink sac delivery channel 16. The COT flexible circuit board 4 is installed on the COT flexible circuit board carrier 15. The COT flexible circuit board 4 controls the opening and closing of the 308 small holes on it, thereby controlling the ink to be ejected from a certain small hole, thereby forming a graphic printing effect.

[0038] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A large-capacity thermal foaming ink cartridge, comprising a housing (1), characterized in that: The shell (1) is provided with a large ink sac storage chamber (10) for storing ink, and the upper surface and lower surface of the large ink sac storage chamber (10) are respectively provided with an upper large ink sac aluminum film (5) and a lower large ink sac aluminum film (7) having corrosion resistance, an upper metal protective cover (3) is provided on the upper surface of the shell (1), and a lower metal protective cover (23) is provided on the lower surface of the shell (1), an ink injection hole (2) for injecting ink into the large ink sac storage chamber (10) is provided on one side of the shell (1), and a A plastic shell (11) is provided, wherein an upper anti-corrosion small ink sac aluminum film (6) is installed on the upper surface of the plastic shell (11), and an anti-corrosion lower small ink sac aluminum film (8) is installed on the lower surface of the plastic shell (11). A small ink sac filter chamber (14) is provided in the plastic shell (11), and the small ink sac filter chamber (14) is connected to the large ink sac storage chamber (10) through an ink inlet hole (13). A filter screen for filtering ink is installed in the small ink sac filter chamber (14), and the lower surface of the plastic shell (11) is concave upward to form a lower small ink sac filter chamber. The upper surface of the plastic shell (11) is concave downward to form an upper small ink sac middle cavity (19), and a control member for controlling the connection between the lower small ink sac middle cavity (26) and the upper small ink sac middle cavity (19) is installed between the lower small ink sac middle cavity (26) and the upper small ink sac middle cavity (19). The upper small ink sac middle cavity (19) is connected to the small ink sac filter cavity (14). A small ink sac printing cavity (17) is provided in the plastic shell (11), and the small ink sac printing cavity (17) is connected to the lower small ink sac middle cavity ( 26), a connecting hole (20) is provided between the housing (1) and the plastic housing (11), an ink cartridge nozzle is installed on one side of the housing (1) close to the plastic housing (11), the ink cartridge nozzle comprises a COT flexible circuit board carrier (15) and a COT flexible circuit board (4), a small ink sac delivery channel (16) is installed between the ink cartridge nozzle and the small ink sac printing cavity (17), the COT flexible circuit board carrier (15) is connected to the small ink sac delivery channel (16), and a COT flexible circuit board (4) is installed on the COT flexible circuit board carrier (15).

2. A large-capacity thermal foaming ink cartridge according to claim 1, characterized in that: The control member includes a top seat (18), an intermediate inlet hole (12) is provided between the intermediate cavity (26) of the lower small ink bag and the intermediate cavity (19) of the upper small ink bag, a base (25) for blocking the intermediate inlet hole (12) is slidably installed in the intermediate inlet hole (12), the top seat (18) is in contact with the aluminum film (6) of the upper small ink bag, a spring (24) is installed on the lower surface of the top seat (18), the other end of the spring (24) is installed with a base (25), the base (25) is installed in the intermediate inlet hole (12), and the base (25) is in contact with the aluminum film (6) of the upper small ink bag. A channel for circulating ink is provided between the middle inlet holes (12), a plurality of annularly arranged arc blocks (22) are installed in the middle cavity (26) of the lower small ink sac, a plastic pressing sheet (21) is provided on the lower side of the arc block (22) and is in contact with the aluminum film (8) of the lower small ink sac, the plastic pressing sheet (21) and the spring (24) are integrated into one body and connected to the lower end of the base (25), the spring (24) in the plastic pressing sheet (21) is installed on the arc block (22), and the small ink sac printing cavity (17) is connected to the small ink sac delivery channel (16).

3. The large-capacity thermal foaming ink cartridge according to claim 1, characterized in that: The ink cartridge nozzle includes a COT flexible circuit board carrier (15), a side of the housing (1) close to the plastic housing (11) is provided with the COT flexible circuit board carrier (15), the COT flexible circuit board carrier (15) is connected to the small ink sac delivery channel (16), the COT flexible circuit board (4) is installed on the COT flexible circuit board carrier (15), and the COT flexible circuit board (4) controls the opening and closing of 308 small holes thereon.

4. The large-capacity thermal foaming ink cartridge according to claim 1, characterized in that: An upper small ink bag aluminum film (6) is mounted on the upper end of the plastic shell (11) by hot pressing, and a lower small ink bag aluminum film (8) is mounted on the lower end of the plastic shell (11) by hot pressing.

5. The large-capacity thermal foaming ink cartridge according to claim 1, characterized in that: The large ink sac storage chamber (10) comprises a plastic white inner frame (9), the plastic white inner frame (9) is installed in the outer shell (1), the upper end of the plastic white inner frame (9) is installed with an anti-corrosion upper large ink sac aluminum film (5) by hot pressing, and the lower end of the plastic white inner frame (9) is installed with an anti-corrosion lower large ink sac aluminum film (7) by hot pressing.

6. The large-capacity thermal foaming ink cartridge according to claim 1, characterized in that: A steel ball for blocking the ink injection hole (2) is installed in the ink injection hole (2), and an elastic member for keeping the steel ball blocking the ink injection hole (2) is provided on one side of the steel ball.

7. The large-capacity thermal foaming ink cartridge according to claim 1, characterized in that: The volume of the large ink sac storage chamber (10) is 120 ml, and the housing (1) is a component made of black plastic.

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