Ink box for digital printing direct injection machine

Abstract

The utility model belongs to the technical field of digital printing, particularly relates to an ink box for a digital printing direct injection machine, and aims to solve the problems that an ink box provided in the background technology is troublesome to disassemble and assemble and ink contains bubbles, the following scheme is provided: the ink box comprises a machine body, an ink supply frame is arranged on the outer wall of one side of the machine body, and an ink storage barrel is arranged on the inner wall of the bottom of the ink supply frame; an ink supply pipe is inserted into the outer wall of the top of the ink storage barrel, and the outer wall of the end, away from the ink storage barrel, of the ink supply pipe is fixedly connected with an ink box body. According to the utility model, a magnetic suction positioning structure is adopted, so that the ink discharge head and the printing nozzle are strictly aligned, a manual calibration step is omitted, the installation efficiency is improved, the degassing assembly at the tail end of the ink supply pipe adopts a hollow fiber membrane to perform gas-liquid separation, and a negative pressure suction area can continuously absorb gas in ink in the hollow fiber membrane; and the one-way valve is used for regularly exhausting air, so that the long-term degassing efficiency can be ensured, and the quality of printed products can be improved.

Description

Technical Field

[0001] This utility model relates to the field of digital printing technology, and in particular to an ink cartridge for a digital printing direct-to-garment printer. Background Technology

[0002] Digital direct-to-garment printing machines are printing and dyeing equipment that uses inkjet printers or digital printing machines to directly spray patterns onto the surface of fabrics. Digital direct-to-garment printing machines use piezoelectric printheads to directly spray ink onto the fabric surface. The ink cartridge is the core ink supply unit, and its performance directly affects the printing quality and equipment stability.

[0003] Traditional ink cartridges are typically secured with mechanical clips or screws, requiring the disassembly of multiple parts for replacement. This process is time-consuming and can easily damage the positioning structure. Furthermore, air bubbles can easily get trapped in the ink during transport, leading to issues such as ink droplet breakage and ink splatter. Existing equipment often relies on static sedimentation for degassing, which is inefficient and struggles to completely remove micron-sized air bubbles. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides an ink cartridge for a digital printing direct-to-garment machine, which overcomes the shortcomings of the prior art and effectively solves the problems of troublesome disassembly and assembly of ink cartridges and air bubbles in ink.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An ink cartridge for a digital direct-to-garment printer includes a body. An ink supply frame is provided on one outer wall of the body, and an ink storage tank is placed on the bottom inner wall of the ink supply frame. An ink supply tube is inserted into the top outer wall of the ink storage tank, and an ink cartridge body is fixedly connected to the outer wall of the end of the ink supply tube away from the ink storage tank. A peristaltic pump is installed on the outer wall of the ink supply tube near the ink storage tank, and a filter is installed on the outer wall of the ink supply tube near the peristaltic pump. A degassing component is installed on the outer wall of the ink supply tube near the ink cartridge body.

[0007] Preferably, the peristaltic pump, filter, and degassing assembly are all fixedly connected to the inner wall of one side of the ink supply frame by screws.

[0008] Preferably, the ink cartridge body includes a cartridge body, first magnetic strips fixedly connected to both sides of the bottom outer wall of the cartridge body, an ink discharge head disposed on the bottom outer wall of the cartridge body, and the ink discharge head is located between the two first magnetic strips, and a level gauge is installed on the top outer wall of the cartridge body.

[0009] Preferably, the degassing component includes a right half shell, a left half shell, a hollow fiber membrane, and a negative pressure suction zone. The left half shell is screwed onto the inner wall of one end of the right half shell. The hollow fiber membrane is placed inside the right half shell and the left half shell. The negative pressure suction zone is distributed inside the right half shell and the left half shell, and the negative pressure suction zone is located outside the hollow fiber membrane.

[0010] Preferably, the degassing assembly further includes a one-way valve, which is fixedly connected to one side of the outer wall of the right half of the housing. The one-way valve allows air to pass from the inside of the right half of the housing to the outside of the right half of the housing.

[0011] Preferably, the top outer wall of the machine body has ink cartridge positioning grooves that are evenly distributed, and the bottom inner wall of the ink cartridge positioning groove is fixedly connected with symmetrically distributed second magnetic strips, and the first magnetic strip and the second magnetic strip correspond one-to-one.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The ink cartridge designed for digital direct-to-garment printers adopts a magnetic positioning structure. The mutual attraction between the first and second magnetic strips enables the quick installation and precise alignment of the ink cartridge body. When the ink cartridge body is placed into the ink cartridge positioning slot, the first magnetic strips on both sides of the bottom of the ink cartridge body and the second magnetic strips symmetrically distributed in the ink cartridge positioning slot can automatically attract and lock together, ensuring that the ink ejector head and the print head are strictly aligned, eliminating the need for manual calibration and improving installation efficiency.

[0014] 2. The ink cartridge for digital direct-to-garment printing machines designed in this way uses a hollow fiber membrane for gas-liquid separation at the end of the ink supply tube. The negative pressure suction zone can continuously absorb the gas in the ink inside the hollow fiber membrane, and the periodic evacuation by the one-way valve can ensure long-term degassing efficiency, which helps to improve the quality of printed products. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an ink cartridge for a digital printing direct-to-garment machine proposed in this utility model;

[0016] Figure 2 This is a front view of the overall structure of an ink cartridge for a digital printing direct-to-garment printer proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the ink supply frame for an ink cartridge in a digital printing direct-to-garment machine, as proposed in this utility model.

[0018] Figure 4 This is a schematic diagram of a degassing component for an ink cartridge in a digital printing direct-to-garment machine, as proposed in this utility model.

[0019] Figure 5This utility model presents a schematic diagram of the main structure of an ink cartridge for a digital direct-to-garment printer. Figure 1 ;

[0020] Figure 6 This utility model presents a schematic diagram of the main structure of an ink cartridge for a digital direct-to-garment printer. Figure 2 .

[0021] In the diagram: 1. Main body; 2. Ink supply frame; 3. Ink reservoir; 4. Ink supply tube; 5. Ink cartridge body; 51. Cartridge body; 52. First magnetic strip; 53. Ink discharge head; 54. Level gauge; 6. Peristaltic pump; 7. Filter; 8. Degassing assembly; 81. Right half of the outer shell; 82. Left half of the outer shell; 83. Hollow fiber membrane; 84. Negative pressure suction zone; 85. One-way valve; 9. Ink cartridge positioning slot; 10. Second magnetic strip. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-6 Example 1: An ink cartridge for a digital printing direct-to-garment printer includes a body 1. An ink supply frame 2 is provided on one outer wall of the body 1, and an ink storage tank 3 is placed on the bottom inner wall of the ink supply frame 2. An ink supply pipe 4 is inserted into the top outer wall of the ink storage tank 3, and an ink cartridge body 5 is fixedly connected to the outer wall of the end of the ink supply pipe 4 away from the ink storage tank 3. The ink cartridge body 5 includes a box body 51, first magnetic strips 52 fixedly connected to both sides of the bottom outer wall of the box body 51, and an ink discharge head 53 provided on the bottom outer wall of the box body 51, with the ink discharge head 53 located between the two first magnetic strips 52. A level gauge 54 is installed on the top outer wall of the box body 51. The top outer wall of the body 1 has ink cartridge positioning grooves 9 distributed at equal intervals, and second magnetic strips 10 are symmetrically distributed and fixedly connected to the bottom inner wall of the ink cartridge positioning grooves 9. The first magnetic strips 52 and the second magnetic strips 10 correspond one-to-one.

[0024] The ink tank 3 has a volume of 5L. The ink supply tube 4 at the top of the ink tank 3 is inserted into the ink tank 3 to ensure a reliable connection. The ink discharge head 53 at the bottom of the cartridge body 51 is used to discharge ink. The level gauge 54 uses a capacitive sensor to monitor the liquid level in real time and transmit the data to the control system. The ink cartridge positioning groove 9 matches the size of the cartridge body 51. The second magnetic strip 10 is embedded in the bottom of the ink cartridge positioning groove 9 and forms opposite poles to attract the first magnetic strip 52.

[0025] In this embodiment, a magnetic positioning structure is adopted. The mutual attraction between the first magnetic strip 52 and the second magnetic strip 10 enables the rapid installation and precise docking of the ink cartridge body 5. When the ink cartridge body 5 is placed into the ink cartridge positioning slot 9, the first magnetic strip 52 on both sides of the bottom of the ink cartridge body 5 and the second magnetic strip 10 symmetrically distributed in the ink cartridge positioning slot 9 can automatically attract and lock together, so that the ink ejection head 53 is strictly aligned with the print head, eliminating the need for manual calibration and improving installation efficiency.

[0026] Example 2: An ink cartridge for a digital direct-to-garment printer. A peristaltic pump 6 is installed on the outer wall of the ink supply pipe 4 near the ink reservoir 3. A filter 7 is installed on the outer wall of the ink supply pipe 4 near the peristaltic pump 6. A degassing assembly 8 is installed on the outer wall of the ink supply pipe 4 near the ink cartridge body 5. The degassing assembly 8 includes a right half-shell 81, a left half-shell 82, a hollow fiber membrane 83, and a negative pressure suction zone 84. The left half-shell 82 is screwed onto the right half-shell 81. On one end of the inner wall of 1, a hollow fiber membrane 83 is placed inside the right half shell 81 and the left half shell 82. A negative pressure suction zone 84 is distributed inside the right half shell 81 and the left half shell 82, and the negative pressure suction zone 84 is located outside the hollow fiber membrane 83. The degassing assembly 8 also includes a one-way valve 85, and the one-way valve 85 is fixedly connected to one side of the outer wall of the right half shell 81. The ventilation direction of the one-way valve 85 is from the inside of the right half shell 81 to the outside of the right half shell 81.

[0027] The peristaltic pump 6 is driven by a stepper motor, with a flow rate accuracy of ±0.5 mL / min and a stable ink supply pressure of 0.2-0.3 MPa. The filter 7 consists of two layers of sintered metal mesh (100 mesh and 200 mesh respectively), which can intercept impurities ≥10 μm. The hollow fiber membrane 83 of the degassing component 8 is made of polypropylene with a wall thickness of 0.5 μm and a total effective filtration area of ​​0.15 m²; the negative pressure suction zone 84 can be maintained by connecting an external vacuum pump through a one-way valve 85.

[0028] In this embodiment, the degassing component 8 at the end of the ink supply tube 4 uses a hollow fiber membrane 83 for gas-liquid separation. The negative pressure suction zone 84 can continuously absorb the gas in the ink inside the hollow fiber membrane 83, and the periodic evacuation by the one-way valve 85 can ensure long-term degassing efficiency, which helps to improve the quality of printed products.

[0029] The peristaltic pump 6, filter 7, and degassing assembly 8 are all fixedly connected to the inner wall of one side of the ink supply frame 2 by screws.

[0030] Working principle: Ink is delivered from ink reservoir 3 through ink supply tube 4:

[0031] The peristaltic pump 6 squeezes the ink supply tube 4 to generate negative pressure to draw ink. The flow rate is adjusted by the control system according to the printing needs. The ink first passes through the filter 7 to remove particulate impurities. When the ink flows into the hollow fiber membrane 83 of the degassing component 8, the dissolved gas diffuses to the outside of the membrane in the negative pressure suction zone 84 to complete the degassing operation. After degassing, the ink enters the ink cartridge body 5 for temporary storage. The liquid level gauge 54 monitors the liquid level height. When the liquid level is lower than the threshold, the peristaltic pump 6 is triggered to replenish ink.

[0032] During installation, the ink cartridge body 5 can be fixed in the ink cartridge positioning groove 9 by the first magnetic strip 52 and the second magnetic strip 10, ensuring that the ink ejection head 53 is vertically aligned with the print head.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An ink cartridge for a digital direct-to-garment printer, comprising a body (1), characterized in that, An ink supply frame (2) is provided on one side of the outer wall of the machine body (1), and an ink storage tank (3) is placed on the bottom inner wall of the ink supply frame (2). An ink supply tube (4) is inserted into the top outer wall of the ink storage tank (3), and an ink cartridge body (5) is fixedly connected to the outer wall of the end of the ink supply tube (4) away from the ink storage tank (3). A peristaltic pump (6) is installed on the outer wall of the ink supply tube (4) near the end of the ink storage tank (3), and a filter (7) is installed on the outer wall of the ink supply tube (4) near the peristaltic pump (6). A degassing component (8) is installed on the outer wall of the ink supply tube (4) near the side of the ink cartridge body (5).

2. The ink cartridge for a digital direct-to-garment printer according to claim 1, characterized in that, The peristaltic pump (6), filter (7) and degassing assembly (8) are all fixedly connected to the inner wall of one side of the ink supply frame (2) by screws.

3. The ink cartridge for a digital direct-to-garment printer according to claim 1, characterized in that, The ink cartridge body (5) includes a cartridge body (51), first magnetic strips (52) fixedly connected to both sides of the bottom outer wall of the cartridge body (51), an ink discharge head (53) disposed on the bottom outer wall of the cartridge body (51), and the ink discharge head (53) is located between the two first magnetic strips (52). A level gauge (54) is installed on the top outer wall of the cartridge body (51).

4. An ink cartridge for a digital direct-to-garment printer according to claim 1, characterized in that, The degassing component (8) includes a right half shell (81), a left half shell (82), a hollow fiber membrane (83), and a negative pressure suction zone (84). The left half shell (82) is screwed onto the inner wall of one end of the right half shell (81). The hollow fiber membrane (83) is placed inside the right half shell (81) and the left half shell (82). The negative pressure suction zone (84) is distributed inside the right half shell (81) and the left half shell (82), and the negative pressure suction zone (84) is located outside the hollow fiber membrane (83).

5. An ink cartridge for a digital direct-to-garment printer according to claim 1, characterized in that, The degassing assembly (8) also includes a one-way valve (85), which is fixedly connected to the outer wall of one side of the right half shell (81). The ventilation direction of the one-way valve (85) is from the inside of the right half shell (81) to the outside of the right half shell (81).

6. An ink cartridge for a digital direct-to-garment printer according to claim 1, characterized in that, The top outer wall of the body (1) is provided with ink cartridge positioning grooves (9) that are evenly distributed, and the bottom inner wall of the ink cartridge positioning groove (9) is fixedly connected with symmetrically distributed second magnetic strips (10), and the first magnetic strip (52) and the second magnetic strip (10) correspond one-to-one.

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