Ink circulating filter device of UV ink-jet system

Abstract

The utility model discloses an ink circulating filtering device of UV code spraying system relates to UV code ink circulating filtering device technical field, including first control valve, its installation in the outside of liquid inlet pipe, liquid inlet pipe and first control valve fixed connection, the lower extreme of liquid inlet pipe is installed with filter box, filter box and liquid inlet pipe fixed connection, the lower extreme of filter box is installed with concentration box, and this device can use its inside filter screen through installing filter box, can filter ink when the ink flows in the device, removes the impurity in ink, guarantees the clean of the ink that flows out device, and the installation side flow pipeline and reflux pipeline can make the ink that enters the device inside refluxes from below to above, and then utilizes the ink to backflush filter screen, makes the impurity that blocks filter screen inside can be washed away, guarantees the selective permeability of filter screen to ink, avoids the influence device to the filtering efficiency of ink.

Description

Technical Field

[0001] This utility model relates to the technical field of UV inkjet printing ink circulation and filtration devices, specifically an ink circulation and filtration device for a UV inkjet printing system. Background Technology

[0002] The ink circulation and filtration device of a UV coding system is a key component to ensure coding quality and stable operation of the equipment. Its main function is to filter impurities and air bubbles in the ink, maintaining the purity and fluidity of the ink.

[0003] However, under long-term use, some filtered impurities accumulate on the upper part of the filter screen inside the existing UV inkjet printing system's ink circulation filtration device. These impurities clog the filter screen's pores under the action of ink flow, resulting in poor selective permeability of the filter screen to ink and affecting the filtration efficiency of the filtration device. Therefore, it does not meet the existing requirements. To address this, we propose an ink circulation filtration device for UV inkjet printing systems. Utility Model Content

[0004] The purpose of this invention is to provide an ink circulation filtration device for a UV inkjet printing system, in order to solve the problem mentioned in the background art that, under long-term use, some filtered impurities accumulate on the upper part of the filter screen inside the filter device. These impurities will clog the filter screen pores under the action of ink flow, resulting in poor selective permeability of the filter screen to ink and affecting the filtration efficiency of the filter device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an ink circulation and filtration device for a UV inkjet printing system, comprising an inlet pipe: A first control valve is installed outside the inlet pipe, the inlet pipe is fixedly connected to the first control valve, a filter box is installed at the lower end of the inlet pipe, the filter box is fixedly connected to the inlet pipe, a collection box is installed at the lower end of the filter box, the collection box is fixedly connected to the filter box, and a second control valve is installed at the lower end of the collection box, the second control valve is fixedly connected to the collection box. A side-flow pipe is provided at the upper ends of both sides of the inlet pipe. A third control valve is installed at the upper end of the outside of the side-flow pipe. Return pipes are installed at the lower ends of both sides of the inlet pipe. The return pipes are fixedly connected to both the inlet pipe and the side-flow pipe. A fourth control valve is installed at the upper end of the outside of the return pipe. A flushing discharge pipe is installed at the front end of the inlet pipe. The flushing discharge pipe is fixedly connected to the inlet pipe. A fifth control valve is installed at the upper end of the outside of the flushing discharge pipe. The fifth control valve is fixedly connected to the flushing discharge pipe.

[0006] Preferably, a filter box is installed at the lower end of the flushing discharge pipe, and the filter box is connected to the flushing discharge pipe by a thread.

[0007] Preferably, a filter screen is installed inside the filter box, and the filter screen is fixedly connected to the filter box.

[0008] Preferably, a filter screen is installed inside the filter box, and the filter screen is fixedly connected to the filter box.

[0009] Preferably, the upper end of the liquid inlet pipe is equipped with a connection port, and the connection port is welded to the liquid inlet pipe.

[0010] Preferably, the inlet pipe is fixedly connected to the side flow pipe, the third control valve is fixedly connected to the side flow pipe, the fourth control valve is fixedly connected to the return pipe, and the lower end of the return pipe is fixedly connected to the central collection box.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by installing a filter box, utilizes its internal filter screen to filter the ink as it flows inside the device, removing impurities and ensuring the cleanliness of the ink flowing out of the device. Installing side flow pipes and return pipes allows the ink entering the device to flow back from bottom to top, thereby using the ink to backwash the filter screen, flushing away impurities that clog the filter screen, ensuring the selective permeability of the filter screen to ink, and avoiding affecting the device's filtration efficiency for ink. 2. This utility model can filter the ink carrying impurities that is backwashed by installing a filter box and a filter screen, so that the washed-out impurities are left in the filter box, making it easier for workers to handle the impurities, reducing the difficulty of removing the impurities, and making the device more user-friendly. Attached Figure Description

[0012] Figure 1 This is a three-dimensional perspective view of an ink circulation and filtration device for a UV inkjet printing system according to this utility model; Figure 2 This is a bottom perspective view of the ink circulation and filtration device of a UV inkjet printing system according to the present invention. Figure 3 This is a schematic diagram of the internal structure of an ink circulation and filtration device for a UV inkjet printing system according to the present invention. Figure 4 for Figure 3 Enlarged view of section A in the middle.

[0013] In the diagram: 1. Inlet pipe; 2. Connection port; 3. First control valve; 4. Filter box; 5. Centralized box; 6. Second control valve; 7. Side flow pipe; 8. Third control valve; 9. Return pipe; 10. Fourth control valve; 11. Flushing discharge pipe; 12. Fifth control valve; 13. Filter debris box; 14. Filter debris screen; 15. Filter screen. Detailed Implementation

[0014] 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.

[0015] Please see Figure 1-4 One embodiment of this utility model is an ink circulation and filtration device for a UV inkjet printing system, comprising an inlet pipe 1: The first control valve 3 is installed outside the liquid inlet pipe 1. The liquid inlet pipe 1 is fixedly connected to the first control valve 3. A filter box 4 is installed at the lower end of the liquid inlet pipe 1. The filter box 4 can use its internal filter screen 15 to filter the ink when it flows inside the device, remove impurities from the ink, and ensure that the ink flowing out of the device is clean. The filter box 4 is fixedly connected to the liquid inlet pipe 1. A collection box 5 is installed at the lower end of the filter box 4. The collection box 5 is fixedly connected to the filter box 4. A second control valve 6 is installed at the lower end of the collection box 5. The second control valve 6 is fixedly connected to the collection box 5. Side flow pipe 7 is located at the upper ends of both sides of inlet pipe 1. A third control valve 8 is installed at the upper end of the outside of side flow pipe 7. Return pipes 9 are installed at the lower ends of both sides of inlet pipe 1. Return pipes 9 are fixedly connected to inlet pipe 1 and side flow pipe 7. Installing side flow pipes 7 and return pipes 9 allows ink entering the device to flow back from bottom to top, thereby using the ink to backwash filter screen 15, flushing away impurities clogging the inside of filter screen 15, ensuring the selective permeability of filter screen 15 to ink, and avoiding affecting the filtration efficiency of the device for ink. A fourth control valve 10 is installed at the upper end of the outside of return pipe 9. A flushing discharge pipe 11 is installed at the front end of inlet pipe 1. Flushing discharge pipe 11 is fixedly connected to inlet pipe 1. A fifth control valve 12 is installed at the upper end of the outside of flushing discharge pipe 11. The fifth control valve 12 is fixedly connected to flushing discharge pipe 11.

[0016] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4A filter box 13 is installed at the lower end of the flushing discharge pipe 11. The filter box 13 is connected to the flushing discharge pipe 11 by a thread. A filter screen 14 is installed inside the filter box 13. The filter box 13 and the filter screen 14 can filter the ink carrying impurities from the backwash, so that the washed-out impurities are left in the filter box 13, making it easier for the staff to handle the impurities and reducing the difficulty of removing the impurities, making the device more user-friendly. The filter screen 14 is fixedly connected to the filter box 13. A filter screen 15 is installed inside the filter box 4. The filter screen 15 is fixedly connected to the filter box 4. A connection port 2 is installed at the upper end of the liquid inlet pipe 1. The connection port 2 is welded to the liquid inlet pipe 1. The liquid inlet pipe 1 is fixedly connected to the side flow pipe 7. The third control valve 8 is fixedly connected to the side flow pipe 7. The fourth control valve 10 is fixedly connected to the return pipe 9. The lower end of the return pipe 9 is fixedly connected to the collection box 5.

[0017] Working Principle: During use, the operator connects port 2 to the ink output pipe and the lower end of the collection box 5 to the ink inlet pipe. The ink is transported by the delivery pump in the UV inkjet system, allowing it to enter the inlet pipe 1 at a certain pressure. At this time, the first control valve 3 and the second control valve 6 are open, while the third control valve 8, the fourth control valve 10, and the fifth control valve 12 are closed, allowing the ink to be smoothly filtered by the filter screen 15 inside the filter box 4. As the device is used for a longer period, some debris may become clogged at the top of the filter screen 15. At this time, the first control valve 3 and the second control valve close, while the third control valve 8, the fourth control valve 10, and the fifth control valve 12 open, allowing the ink to enter the collection box 5 through the side flow pipe and the return pipe 9. The ink then flows upwards from inside the collection box 5, impacting the filter screen 15 from bottom to top. The ink then enters the flushing and discharge pipe 11. The ink carrying debris is then filtered by the filter screen 14 in the impurity filter box 13, leaving the impurities in the impurity filter box 13. At this point, the operator uses a clean, easily removable... The rinsed ink is refilled into the ink tank of the UV coding system. To remove impurities, the filter box 13 can be unscrewed and cleaned when the first control valve 3 and the second control valve 6 are open, and the third control valve 8, the fourth control valve 10, and the fifth control valve 12 are closed. The filter box 4 utilizes its internal filter screen 15 to filter the ink as it flows through the device, removing impurities and ensuring clean ink exiting the device. The side-flow pipe 7 and the return pipe 9 allow the ink entering the device to flow back from bottom to top, backwashing the filter screen 15 and removing impurities that clog it. This ensures the filter screen 15's selective permeability to ink, preventing any impact on the device's filtration efficiency. The filter box 13 and filter screen 14 filter the backwashed ink carrying impurities, leaving them in the filter box 13 for easy removal and reducing the difficulty of removing impurities, making the device more user-friendly.

[0018] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An ink circulation and filtration device for a UV inkjet printing system, comprising an inlet pipe (1), characterized in that: A first control valve (3) is installed outside the inlet pipe (1). The inlet pipe (1) is fixedly connected to the first control valve (3). A filter box (4) is installed at the lower end of the inlet pipe (1). The filter box (4) is fixedly connected to the inlet pipe (1). A central box (5) is installed at the lower end of the filter box (4). The central box (5) is fixedly connected to the filter box (4). A second control valve (6) is installed at the lower end of the central box (5). The second control valve (6) is fixedly connected to the central box (5). A side flow pipe (7) is provided at the upper ends of both sides of the inlet pipe (1). A third control valve (8) is installed at the upper end of the outside of the side flow pipe (7). A return pipe (9) is installed at the lower ends of both sides of the inlet pipe (1). The return pipe (9) is fixedly connected to both the inlet pipe (1) and the side flow pipe (7). A fourth control valve (10) is installed at the upper end of the outside of the return pipe (9). A flushing discharge pipe (11) is installed at the front end of the inlet pipe (1). The flushing discharge pipe (11) is fixedly connected to the inlet pipe (1). A fifth control valve (12) is installed at the upper end of the outside of the flushing discharge pipe (11). The fifth control valve (12) is fixedly connected to the flushing discharge pipe (11).

2. The ink circulation and filtration device for a UV inkjet printing system according to claim 1, characterized in that: A filter box (13) is installed at the lower end of the flushing discharge pipe (11), and the filter box (13) is connected to the flushing discharge pipe (11) by a thread.

3. The ink circulation and filtration device for a UV inkjet printing system according to claim 2, characterized in that: The filter box (13) is equipped with a filter screen (14), which is fixedly connected to the filter box (13).

4. The ink circulation and filtration device for a UV inkjet printing system according to claim 1, characterized in that: The filter box (4) is equipped with a filter screen (15), which is fixedly connected to the filter box (4).

5. The ink circulation and filtration device for a UV inkjet printing system according to claim 1, characterized in that: The upper end of the liquid inlet pipe (1) is equipped with a connection port (2), which is welded to the liquid inlet pipe (1).

6. The ink circulation and filtration device for a UV inkjet printing system according to claim 1, characterized in that: The inlet pipe (1) is fixedly connected to the side flow pipe (7), the third control valve (8) is fixedly connected to the side flow pipe (7), the fourth control valve (10) is fixedly connected to the return pipe (9), and the lower end of the return pipe (9) is fixedly connected to the central box (5).

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