An ink filtering device

Abstract

The application relates to an ink filtering device and relates to the technical field of ink conveying equipment for printing machines, which comprises an ink supply pump, the input end of the ink supply pump is fixedly installed with an inlet pipe, the output end of the ink supply pump is fixedly installed with a first conveying pipe, and the right end of the first conveying pipe is fixedly installed with an ink inlet flange. The ink inlet flange, the filter screen, the conical discharge hopper, the ink outlet flange and other components are arranged, the ink is extracted through the ink supply pump and the inlet pipe, is transmitted to the inside of the filter screen through the first conveying pipe and the ink inlet flange, at the moment, the ink is filtered through the filter screen, the residues are attached to the inner wall of the filter screen, the filtered ink is left in the inside of the filter cartridge, and finally is transmitted through the ink outlet flange and the second conveying pipe, so that the device can filter the residues in the ink through the filter screen when the ink is transmitted, prevents the residues from entering the subsequent printing mechanism along with the ink, reduces problems such as plate wear and tear and pattern defects, and improves printing quality.

Description

Technical Field

[0001] This application relates to the field of ink delivery equipment for printing presses, and in particular to an ink filtration device. Background Technology

[0002] Ink is an important material used in printing. It is made by uniformly mixing pigments, binders, additives and other components and then rolling them. It is a viscous gel with a specific color and a certain fluidity. It can dry and cure on the surface of the substrate to form text, patterns and other shapes. It is widely used in various printing fields such as books, newspapers, packaging and advertising.

[0003] However, existing technologies have found that the ink delivered by ink pumps often contains particulate impurities, dried ink lumps, and other residues. These residues can enter the subsequent printing mechanism along with the ink, easily leading to plate wear and pattern defects, thus affecting printing quality. Utility Model Content

[0004] The purpose of this application is to provide an ink filtration device that can filter out residues in the ink through a filter screen during ink transfer, preventing these residues from entering the subsequent printing mechanism with the ink, reducing problems such as printing plate wear and pattern defects, and improving printing quality, thus solving the problems mentioned in the background art.

[0005] The ink filtration device provided in this application adopts the following technical solution: it includes an ink supply pump, an inlet pipe fixedly installed at the input end of the ink supply pump, a first delivery pipe fixedly installed at the output end of the ink supply pump, an ink inlet flange fixedly installed at the right end of the first delivery pipe, a filter cylinder fixedly connected to the outer surface of the ink inlet flange, a first fixing seat fixedly connected to the inner wall of the filter cylinder, a filter screen fixedly connected to the bottom surface of the first fixing seat, the right end of the ink inlet flange fixedly connected to the inner wall of the filter screen, a conical discharge hopper fixedly connected to the bottom surface of the filter screen, a second fixing seat fixedly connected to the outer surface of the conical discharge hopper, the outer surface of the second fixing seat fixedly connected to the inner wall of the filter cylinder, an ink outlet flange fixedly connected to the outer surface of the filter cylinder, and a second delivery pipe fixedly installed at the right end of the ink outlet flange.

[0006] By adopting the above technical solution, an inlet pipe is set at the input end of the ink supply pump, and the left end of the inlet pipe extends to the ink storage tank, allowing ink to enter the ink supply pump through the inlet pipe. A first delivery pipe is set at the output end of the ink supply pump, allowing the ink drawn by the ink supply pump to be transferred through the first delivery pipe. The ink inlet flange is installed at the right end of the first delivery pipe and fixed with bolts, allowing ink to enter the interior of the ink inlet flange through the first delivery pipe. The filter cartridge is installed on the outer surface of the ink inlet flange for a fixed connection, and a first fixing seat is installed on the inner wall of the filter cartridge. The first fixing seat is fixed to the filter cartridge, thus achieving the installation of the first fixing seat. The filter screen is installed on the bottom surface of the first fixing seat and fixed to the ink inlet flange. This design allows ink to enter the filter screen through the ink inlet flange. A conical discharge hopper is placed on the bottom of the filter screen, and a second fixing seat is installed on the outer surface of the conical discharge hopper. The second fixing seat is fixed to the inner wall of the filter cylinder. After the ink enters the filter screen, the filter screen can block the residue in the ink, while the ink passes through the filter screen and enters the interior of the filter cylinder. An ink outlet flange is installed on the outer surface of the filter cylinder, and a second conveying pipe is installed on the right end of the ink outlet flange by bolts. This allows the ink to be finally conveyed through the second conveying pipe. This device can filter the residue in the ink through the filter screen during ink transmission, preventing these residues from entering the subsequent printing mechanism with the ink, reducing problems such as printing plate wear and pattern defects, and improving printing quality.

[0007] Preferably, a solenoid valve is fixedly installed on the outer surface of the conical discharge hopper, and a pressure sensor is fixedly installed on the outer surface of the second conveying pipe.

[0008] By adopting the above technical solution, the solenoid valve is installed on the outer surface of the conical discharge hopper. The opening and closing of the solenoid valve allows the residue inside the conical discharge hopper to be discharged. A pressure sensor is set on the outer surface of the second conveying pipe. The pressure sensor can monitor the pressure of the filtered ink in real time. When there is too much residue attached to the inner wall of the filter screen, it will cause the pressure to rise.

[0009] Preferably, a stepper motor is fixedly connected to the upper surface of the first fixed base, and a threaded rod is fixedly connected to the output shaft of the stepper motor.

[0010] By adopting the above technical solution, the stepper motor is installed on the upper surface of the first fixed base and fixed to the first fixed base, thereby realizing the installation of the stepper motor. The threaded rod is installed on the output shaft of the stepper motor and fixed to the threaded rod, so that the stepper motor can drive the threaded rod to rotate.

[0011] Preferably, the outer surface of the threaded rod is rotatably connected to the inner wall of the first fixed seat, and a mounting bracket is threadedly connected to the outer surface of the threaded rod.

[0012] By adopting the above technical solution, the threaded rod is connected to the first fixed seat in a rotatable connection to limit the movement of the threaded rod. The mounting bracket is installed on the outer surface of the threaded rod in a threaded connection, so that when the stepper motor drives the threaded rod to rotate, the mounting bracket can be raised and lowered through the connection between the threaded rod and the mounting bracket.

[0013] Preferably, a scraper ring is fixedly connected to the outer surface of the mounting bracket, and the scraper ring is in contact with the filter screen.

[0014] By adopting the above technical solution, the scraper ring is installed on the outer surface of the mounting frame, and the mounting frame and the scraper ring are fixed together, so that the scraper ring can rise and fall together with the mounting frame, and the scraper ring is in contact with the inner wall of the filter screen, so that when the scraper ring rises and falls, it can scrape off the residue attached to the inner wall of the filter screen.

[0015] Preferably, the bottom surface of the first fixing base is fixedly connected to two guide rods, and the outer surface of each guide rod is slidably connected to the inner wall of the mounting frame.

[0016] By adopting the above technical solution, the guide rod is installed on the bottom surface of the first fixed seat and fixed to the first fixed seat to realize the installation of the guide rod. The guide rod is connected to the mounting frame and the connection between them is set as a sliding connection, so that when the threaded rod rotates, the connection between the guide rod and the mounting frame enables the threaded rod to drive the mounting frame to rise and fall stably.

[0017] Preferably, a mounting base is fixedly connected to the outer surface of the filter cartridge, and a controller is fixedly connected to the left side of the mounting base.

[0018] By adopting the above technical solution, the mounting base is installed on the outer surface of the filter cartridge and fixed to the filter cartridge, thereby realizing the installation of the mounting base and fixing the controller on the left side of the mounting base, so that the controller can be limited.

[0019] Preferably, the controller is electrically connected to the solenoid valve, the pressure sensor, and the stepper motor.

[0020] By adopting the above technical solution, the controller is connected to the solenoid valve, pressure sensor and stepper motor respectively. The electrical connection enables the controller to control the solenoid valve and stepper motor respectively. The data collected by the pressure sensor can be transmitted to the controller for analysis. When the pressure value reaches the set value, the controller can control the stepper motor and solenoid valve to start.

[0021] In summary, this application includes at least one of the following beneficial technical effects: This ink filtration device comprises components such as an ink inlet flange, a filter screen, a conical discharge hopper, and an ink outlet flange. Ink is drawn by an ink pump and an inlet pipe, and then transferred to the inside of the filter screen via a first delivery pipe and the ink inlet flange. The ink is filtered through the filter screen, with residue adhering to the inner wall of the screen. The filtered ink remains inside the filter cylinder and is ultimately transferred through the ink outlet flange and a second delivery pipe. This device filters out residue from the ink during transmission, preventing it from entering subsequent printing processes, reducing plate wear, pattern defects, and improving print quality. As more residue adheres to the inner wall of the filter screen, the pressure detected by the pressure sensor increases. When the direct pressure reaches the set value, the controller triggers the cleaning and sewage discharge program. At this time, the stepper motor is started, which drives the threaded rod to rotate. The threaded rod drives the mounting bracket and the scraper ring to move up and down reciprocally, allowing the scraper ring to scrape off the residue attached to the inner wall of the filter screen. While the scraper ring is moving, the controller opens the solenoid valve, and the residue deposited at the bottom of the conical discharge hopper is discharged through the conical discharge hopper under the pressure of the ink. When the pressure sensor detects that the pressure has returned to the normal range, the controller closes the solenoid valve, and the stepper motor drives the scraper ring to reset. At this time, the device returns to normal filtration. The entire process does not require stopping the machine, realizing continuous operation of automatic cleaning and sewage discharge, eliminating the need for frequent shutdowns for cleaning, and preventing the impact on production efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the entire application in three dimensions; Figure 2 This is a schematic diagram of the overall front view of this application; Figure 3 This is a schematic diagram of the internal structure of the filter cartridge in this application; Figure 4 This is a schematic diagram showing the connection relationship between the conical discharge hopper and the solenoid valve in this application. Figure 5 This is a structural diagram illustrating the connection between the threaded rod and the mounting bracket in this application.

[0023] In the picture: 1. Ink pump; 2. Liquid inlet pipe; 3. First delivery pipe; 4. Ink inlet flange; 5. Filter cartridge; 6. First mounting base; 7. Filter screen; 8. Conical discharge hopper; 9. Ink outlet flange; 10. Second delivery pipe; 11. Solenoid valve; 12. Second mounting base; 13. Pressure sensor; 14. Stepper motor; 15. Threaded rod; 16. Mounting bracket; 17. Slag scraper ring; 18. Guide rod; 19. Mounting base; 20. Controller. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0025] Example 1: An ink filtration device, please refer to... Figure 2 , Figure 3 and Figure 4 The system includes an ink supply pump 1, with an inlet pipe 2 fixedly installed at its input end. The inlet pipe 2 extends to the ink storage tank at its left end, allowing ink to enter the ink supply pump 1 through the inlet pipe 2. A first delivery pipe 3 is fixedly installed at the output end of the ink supply pump 1, and an ink inlet flange 4 is fixedly installed at the right end of the first delivery pipe 3. By setting the first delivery pipe 3 at the output end of the ink supply pump 1, the ink drawn by the ink supply pump 1 can be transferred through the first delivery pipe 3. The ink inlet flange 4 is installed at the right end of the first delivery pipe 3 and fixed with bolts, allowing ink to enter the ink inlet tank through the first delivery pipe 3. Inside the flange 4, a filter cylinder 5 is fixedly connected to the outer surface of the ink inlet flange 4. A first fixing seat 6 is fixedly connected to the inner wall of the filter cylinder 5. A filter screen 7 is fixedly connected to the bottom surface of the first fixing seat 6. The right end of the ink inlet flange 4 is fixedly connected to the inner wall of the filter screen 7. The filter cylinder 5 is installed on the outer surface of the ink inlet flange 4 and fixedly connected. The first fixing seat 6 is installed on the inner wall of the filter cylinder 5 and fixed to the filter cylinder 5. The filter screen 7 is installed on the bottom surface of the first fixing seat 6 and fixed to the ink inlet flange 4, so that ink can enter the interior of the filter screen 7 through the ink inlet flange 4.

[0026] Please see Figure 1 , Figure 3 and Figure 4 A conical discharge hopper 8 is fixedly connected to the bottom surface of the filter screen 7. A second fixing seat 12 is fixedly connected to the outer surface of the conical discharge hopper 8. The outer surface of the second fixing seat 12 is fixedly connected to the inner wall of the filter cylinder 5. The conical discharge hopper 8 is positioned on the bottom surface of the filter screen 7, and the second fixing seat 12 is installed on the outer surface of the conical discharge hopper 8. The second fixing seat 12 is fixed to the inner wall of the filter cylinder 5, so that after the ink enters the interior of the filter screen 7, the filter screen 7 can block the residue in the ink, while the ink passes through the filter screen 7 and enters the interior of the filter cylinder 5. The outer surface of the filter cartridge 5 is fixedly connected to an ink outlet flange 9. A second conveying pipe 10 is fixedly installed at the right end of the ink outlet flange 9. The ink outlet flange 9 is installed on the outer surface of the filter cartridge 5, and the second conveying pipe 10 is installed at the right end of the ink outlet flange 9 by bolts, so that the ink can be finally transmitted through the second conveying pipe 10. This allows the device to filter the residue in the ink through the filter screen 7 during ink transmission, preventing these residues from entering the subsequent printing mechanism with the ink, reducing problems such as printing plate wear and pattern defects, and improving printing quality.

[0027] Example 2: An ink filtration device, please refer to... Figure 3 , Figure 4 and Figure 5A solenoid valve 11 is fixedly installed on the outer surface of the conical discharge hopper 8, and a pressure sensor 13 is fixedly installed on the outer surface of the second conveying pipe 10. The solenoid valve 11 is installed on the outer surface of the conical discharge hopper 8, and the opening and closing of the solenoid valve 11 allows the residue inside the conical discharge hopper 8 to be discharged. The pressure sensor 13 is set on the outer surface of the second conveying pipe 10, and the pressure of the filtered ink can be monitored in real time. When there is too much residue attached to the inner wall of the filter screen 7, the pressure will increase. A stepper motor 14 is fixedly connected to the upper surface of the first fixed seat 6, and a threaded rod 15 is fixedly connected to the output shaft of the stepper motor 14. The stepper motor 14 is installed on the upper surface of the first fixed seat 6 and fixed to the first fixed seat 6 to realize the installation of the stepper motor 14. The threaded rod 15 is installed on the output shaft of the stepper motor 14 and fixed to the threaded rod 15, so that the stepper motor 14 can drive the threaded rod 15 to rotate.

[0028] Please see Figure 4 and Figure 5 The outer surface of the threaded rod 15 is rotatably connected to the inner wall of the first fixed seat 6. A mounting bracket 16 is threadedly connected to the outer surface of the threaded rod 15, connecting it to the first fixed seat 6 in a rotatable manner to limit the movement of the threaded rod 15. The mounting bracket 16 is installed on the outer surface of the threaded rod 15 in a threaded connection, allowing the mounting bracket 16 to rise and fall when the stepper motor 14 drives the threaded rod 15 to rotate, thanks to the connection between the threaded rod 15 and the mounting bracket 16. A scraper ring 17 is fixedly connected to the outer surface of the mounting bracket 16, fitting snugly against the filter screen 7. The scraper ring 17 is installed on the outer surface of the mounting bracket 16, and the mounting bracket 16 and the scraper ring 17 are fixed together, allowing the scraper ring to move freely. The scraper ring 17 can rise and fall together with the mounting frame 16, so that the scraper ring 17 fits against the inner wall of the filter screen 7, and the scraper ring 17 can scrape off the residue attached to the inner wall of the filter screen 7 when it rises and falls. Two guide rods 18 are fixedly connected to the bottom surface of the first fixed seat 6. The outer surface of each guide rod 18 is slidably connected to the inner wall of the mounting frame 16. The guide rods 18 are installed on the bottom surface of the first fixed seat 6 and fixed to the first fixed seat 6 to realize the installation of the guide rods 18. The guide rods 18 are connected to the mounting frame 16 and the connection between them is set as a sliding connection, so that when the threaded rod 15 rotates, the threaded rod 15 can drive the mounting frame 16 to rise and fall stably through the connection between the guide rod 18 and the mounting frame 16.

[0029] Please see Figure 1 , Figure 2 and Figure 3A mounting base 19 is fixedly connected to the outer surface of the filter cartridge 5. A controller 20 is fixedly connected to the left side of the mounting base 19. The mounting base 19 is installed on the outer surface of the filter cartridge 5 and fixed to the filter cartridge 5 to achieve the installation of the mounting base 19. The controller 20 is fixed to the left side of the mounting base 19 so that the controller 20 can be limited. The controller 20 is electrically connected to the solenoid valve 11, the pressure sensor 13 and the stepper motor 14. The controller 20 is connected to the solenoid valve 11, the pressure sensor 13 and the stepper motor 14 respectively. The controller 20 can control the solenoid valve 11 and the stepper motor 14 respectively. The data collected by the pressure sensor 13 can be transmitted to the controller 20 for analysis. When the pressure value reaches the set value, the controller 20 can control the stepper motor 14 and the solenoid valve 11 to start.

[0030] The implementation principle of this application embodiment is as follows: First, ink is drawn through the ink pump 1 and the inlet pipe 2, and then transmitted to the inside of the filter screen 7 through the first delivery pipe 3 and the ink inlet flange 4. The ink is filtered through the filter screen 7, and the filtered ink enters the inside of the filter cylinder 5. Finally, it is transmitted to the subsequent printing assembly through the ink outlet flange 9 and the second delivery pipe 10. This allows the device to filter out residues in the ink through the filter screen 7 during ink transmission, preventing these residues from entering the subsequent printing mechanism with the ink, reducing problems such as printing plate wear and pattern defects, thereby improving printing quality. When more and more residues adhere to the inner wall of the filter screen 7, the pressure detected by the pressure sensor 13 increases. When the pressure reaches the set value, the controller 20 triggers cleaning. In the sewage discharge process, stepper motor 14 is activated, which drives threaded rod 15 to rotate. Threaded rod 15 then drives mounting bracket 16 and scraper ring 17 to move up and down reciprocally, allowing scraper ring 17 to scrape off residue adhering to the inner wall of filter screen 7. While scraper ring 17 is moving, controller 20 simultaneously opens solenoid valve 11. Residue deposited at the bottom of conical discharge hopper 8 is then discharged through the conical discharge hopper 8 under ink pressure. When pressure sensor 13 detects that the pressure has returned to normal, controller 20 closes solenoid valve 11, and stepper motor 14 drives scraper ring 17 to reset. The device then returns to normal filtration status. The entire process requires no machine shutdown, achieving continuous automatic cleaning and sewage discharge without frequent shutdowns for cleaning, thus preventing impact on production efficiency.

Claims

1. An ink filtration device, comprising an ink supply pump (1), characterized in that: The ink supply pump (1) is fixedly equipped with an inlet pipe (2) at its input end and a first delivery pipe (3) at its output end. An ink inlet flange (4) is fixedly installed at the right end of the first delivery pipe (3). A filter cylinder (5) is fixedly connected to the outer surface of the ink inlet flange (4). A first fixed seat (6) is fixedly connected to the inner wall of the filter cylinder (5). A filter screen (7) is fixedly connected to the bottom surface of the first fixed seat (6). The right end of the ink inlet flange (4) is fixedly connected to the inner wall of the filter screen (7). A conical discharge hopper (8) is fixedly connected to the bottom surface of the filter screen (7). A second fixed seat (12) is fixedly connected to the outer surface of the conical discharge hopper (8). The outer surface of the second fixed seat (12) is fixedly connected to the inner wall of the filter cylinder (5). An ink outlet flange (9) is fixedly connected to the outer surface of the filter cylinder (5). A second delivery pipe (10) is fixedly installed at the right end of the ink outlet flange (9).

2. The ink filtering device according to claim 1, characterized in that: A solenoid valve (11) is fixedly installed on the outer surface of the conical discharge hopper (8), and a pressure sensor (13) is fixedly installed on the outer surface of the second conveying pipe (10).

3. The ink filtering device according to claim 1, characterized in that: A stepper motor (14) is fixedly connected to the upper surface of the first fixed base (6), and a threaded rod (15) is fixedly connected to the output shaft of the stepper motor (14).

4. The ink filtering device according to claim 3, characterized in that: The outer surface of the threaded rod (15) is rotatably connected to the inner wall of the first fixed seat (6), and the outer surface of the threaded rod (15) is threadedly connected to the mounting bracket (16).

5. The ink filtering device according to claim 4, characterized in that: A scraper ring (17) is fixedly connected to the outer surface of the mounting bracket (16), and the scraper ring (17) is in contact with the filter screen (7).

6. The ink filtering device according to claim 4, characterized in that: The bottom surface of the first fixed base (6) is fixedly connected to two guide rods (18), and the outer surface of each guide rod (18) is slidably connected to the inner wall of the mounting bracket (16).

7. The ink filtering device according to claim 1, characterized in that: The outer surface of the filter cartridge (5) is fixedly connected to a mounting base (19), and the left side of the mounting base (19) is fixedly connected to a controller (20).

8. An ink filtering device according to claim 7, characterized in that: The controller (20) is electrically connected to the solenoid valve (11), the pressure sensor (13), and the stepper motor (14).

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