Printing ink filtering mechanism

Abstract

The utility model discloses a printing ink filtering mechanism which comprises a filtering tank, a feeding port is formed in the middle of one side of the filtering tank, a discharging port is formed in the bottom of the filtering tank, a threaded rod is rotatably connected to the top of the filtering tank in a penetrating mode, and a driving motor located on one side of the threaded rod is fixedly installed on the top of the filtering tank. A fixing ring located above the feeding port is fixedly installed in the filtering tank, a filtering net located below the feeding port is fixedly installed in the filtering tank, a piston plate located above the fixing ring is slidably connected to the interior of the filtering tank in a sealed mode, and the middle of the piston plate is in threaded connection with a threaded rod; the bottom of the threaded rod is rotationally connected with the middle of the fixing ring. Printing ink is filtered through the filter screen, the structure is simple, air pressure can be matched with self gravity to filter through the filter plate, impurities are effectively removed, operation is convenient, and safety is high.

Description

Technical Field

[0001] This utility model relates to the field of printing technology, specifically to an ink filtration mechanism. Background Technology

[0002] Ink is an important material used in printing. It is used to represent patterns and text on a substrate through printing or inkjet printing. The working principle of a printing press is as follows: first, the text and images to be printed are made into a printing plate and mounted on the printing press. Then, ink is applied to the areas with text and images on the printing plate by hand or by the printing press. The ink is then transferred directly or indirectly to paper or other substrates, thereby reproducing a printed product identical to the printing plate.

[0003] Ink filtration is a crucial step in the printing process. Larger ink particles and impurities in the ink have a significant impact on the quality of printed materials. Currently, the ink production process generally uses sedimentation or filter cloth filtration to reduce larger ink particles or impurities. However, this method has low impurity removal efficiency and poor impurity removal effect, and cannot achieve the desired precision impurity removal.

[0004] Therefore, we propose an ink filtration mechanism. Utility Model Content

[0005] The purpose of this invention is to provide an ink filtration mechanism to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an ink filtering mechanism, including a filter tank, an inlet located in the middle of one side of the filter tank, an outlet located at the bottom of the filter tank, a threaded rod rotatably connected through the top of the filter tank, a drive motor fixedly installed on the top of the filter tank located on one side of the threaded rod, a fixing ring fixedly installed inside the filter tank located above the inlet, a filter screen fixedly installed inside the filter tank located below the inlet, a piston plate slidably connected inside the filter tank located above the fixing ring, the middle of the piston plate being threadedly connected to the threaded rod, the bottom of the threaded rod being rotatably connected to the middle of the fixing ring, the output end of the drive motor being drively connected to the top of the threaded rod, and a guide post fixedly installed on the top of the fixing ring, the guide post being slidably connected through the piston plate.

[0007] Optionally, a second bevel gear is fixedly installed at the output end of the drive motor, and a first bevel gear located above the filter tank is fixedly installed at the top of the threaded rod, with the first bevel gear meshing with the second bevel gear.

[0008] Optionally, a connecting plate is integrally connected to the inner ring surface of the fixed ring, and a rotating seat is integrally connected to the other end of the connecting plate. The bottom of the threaded rod is rotatably connected to the middle of the rotating seat.

[0009] Optionally, the top center of the connecting plate is fixedly installed with the bottom of the guide column, and the top of the guide column is fixedly installed with the top of the inside of the filter tank.

[0010] Optionally, the filter tank is integrally connected to a mounting bracket located below the feed inlet. The filter screen is fixedly installed on the top of the mounting bracket. The filter tank is provided with multiple mounting brackets, and the multiple filter screens are arranged from top to bottom in order of increasing filtration accuracy.

[0011] Optionally, an air guide pipe is fixedly installed at the bottom of one side of the filter tank, the top of the air guide pipe is higher than the feed inlet, and a one-way valve is provided at the top of the air guide pipe.

[0012] Optionally, a linear bearing is provided at the through connection between the piston plate and the guide column, the guide column is slidably connected through the linear bearing, and the outer peripheral surface of the piston plate is in sliding contact with the inner wall of the filter tank.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This ink filtration mechanism, by setting up a filter screen and a piston plate, adds ink to the filter tank through the feed port, starts the drive motor, drives the threaded column to rotate, and causes the piston plate to move downward, increasing the air pressure inside the sealed tank below the piston plate, thereby pushing the liquid ink through the filter screen for filtration. The structure is simple, and it can use air pressure combined with its own gravity to filter through the filter plate, effectively removing impurities. It is easy to operate and has a high degree of safety.

[0015] 2. This ink filtration mechanism, by setting up an air guide pipe, when the piston plate moves to the bottom, the drive motor reverses and drives the piston plate to move up, thereby causing the air guide pipe to fill the filter tank with air through the open one-way valve. At the same time, the air passes through the filter screen to generate bubbles, which agitates the liquid pigment and blows up the impurities inside the filter screen mesh, preventing the filter screen from clogging. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the ink filtration mechanism of this utility model;

[0017] Figure 2 This is a schematic diagram of the filter tank of the ink filtration mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the threaded rod of the ink filtering mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the fixing ring of the ink filtering mechanism of this utility model.

[0020] In the diagram: 1. Filter tank; 2. Inlet; 3. Outlet; 4. Drive motor; 5. Threaded rod; 6. Piston plate; 7. Fixing ring; 8. Filter screen; 9. Guide column; 10. First bevel gear; 11. Second bevel gear; 12. Air guide pipe; 13. Mounting bracket; 14. Connecting plate; 15. Rotating seat. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 4 This utility model provides an ink filtering mechanism, including a filter tank 1. A feed inlet 2 is located in the middle of one side of the filter tank 1, and a discharge outlet 3 is located at the bottom of the filter tank 1. A threaded rod 5 is rotatably connected through the top of the filter tank 1. A drive motor 4 is fixedly installed on the top of the filter tank 1, located on one side of the threaded rod 5. A fixing ring 7 is fixedly installed inside the filter tank 1, located above the feed inlet 2. A filter screen 8 is fixedly installed inside the filter tank 1, located below the feed inlet 2. A piston plate 6 is slidably connected inside the filter tank 1, located above the fixing ring 7. The middle of the piston plate 6 is threadedly connected to the threaded rod 5, and the bottom of the threaded rod 5 is connected to the middle of the fixing ring 7. The drive motor 4 is connected to the top of the threaded rod 5 via a rotary connection. A guide post 9 is fixedly installed on the top of the fixed ring 7. The guide post 9 is slidably connected to the piston plate 6. Ink is added to the filter tank 1 through the feed inlet 2 by setting the filter screen 8 and the piston plate 6. The drive motor 4 is started, which drives the threaded rod to rotate, thereby causing the piston plate 6 to move downward. This increases the air pressure inside the sealed tank below the piston plate 6, thereby pushing the liquid ink through the filter screen 8 for filtration. The structure is simple and can use air pressure combined with its own gravity to filter through the filter plate, effectively removing impurities. It is easy to operate and has high safety.

[0023] A second bevel gear 11 is fixedly installed at the output end of the drive motor 4. A first bevel gear 10 located above the filter tank 1 is fixedly installed at the top of the threaded rod 5. The first bevel gear 10 meshes with the second bevel gear 11. A connecting plate 14 is integrally connected to the inner ring surface of the fixing ring 7. A rotating seat 15 is integrally connected to the other end of the connecting plate 14. The bottom of the threaded rod 5 is rotatably connected to the middle of the rotating seat 15. The middle of the top of the connecting plate 14 is fixedly installed to the bottom of the guide column 9. The top of the guide column 9 is fixedly installed to the top of the inside of the filter tank 1. A mounting bracket 13 located below the feed inlet 2 is integrally connected to the inside of the filter tank 1. The filter screen 8 is fixedly installed to the top of the mounting bracket 13. Multiple mounting brackets 13 and multiple filter screens are provided inside the filter tank 1. Arranged from top to bottom in order of increasing filtration precision, the filter tank 1 has an air guide pipe 12 fixedly installed at the bottom of one side. The top of the air guide pipe 12 is higher than the feed inlet 2. A one-way valve is installed at the top of the air guide pipe 12. A linear bearing is installed at the through connection between the piston plate 6 and the guide column 9. The guide column 9 is slidably connected through the linear bearing. The outer circumferential surface of the piston plate 6 slides in contact with the inner wall of the filter tank 1. By setting the air guide pipe 12, when the piston plate 6 moves to the bottom, the drive motor 4 reverses and drives the piston plate 6 to move upward. This causes the air guide pipe 12 to fill the filter tank 1 with air through the open one-way valve. At the same time, the air passes through the filter screen 8 to generate bubbles, which stirs the liquid pigment and blows up the impurities inside the mesh of the filter screen 8, preventing the filter screen 8 from clogging.

[0024] Working principle:

[0025] Ink is added to filter tank 1 through feed inlet 2. The drive motor 4 is started, which drives the threaded column to rotate, causing the piston plate 6 to move downward. This increases the air pressure below the piston plate 6 inside the sealed tank, thus pushing the liquid ink through the filter screen 8 for filtration. The structure is simple and can use air pressure combined with its own gravity to filter through the filter plate, effectively removing impurities. It is easy to operate and has high safety. When the piston plate 6 moves to the bottom, the drive motor 4 reverses and drives the piston plate 6 to move upward. This causes the air guide pipe 12 to fill the filter tank 1 with air through the open one-way valve. At the same time, the air passes through the filter screen 8 and generates bubbles, which agitates the liquid pigment and blows away impurities inside the mesh of the filter screen 8, preventing the filter screen 8 from clogging.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ink filtration mechanism, comprising a filter tank (1), characterized in that, A feed inlet (2) is provided in the middle of one side of the filter tank (1), and a discharge outlet (3) is provided at the bottom of the filter tank (1). A threaded rod (5) is rotatably connected through the top of the filter tank (1). A drive motor (4) located on one side of the threaded rod (5) is fixedly installed on the top of the filter tank (1). A fixing ring (7) located above the feed inlet (2) is fixedly installed inside the filter tank (1). A filter screen (8) located below the feed inlet (2) is fixedly installed inside the filter tank (1). A piston plate (6) located above the fixing ring (7) is slidably connected inside the filter tank (1). The middle part of the piston plate (6) is threadedly connected to the threaded rod (5). The bottom of the threaded rod (5) is rotatably connected to the middle part of the fixing ring (7). The output end of the drive motor (4) is drivenly connected to the top of the threaded rod (5). A guide post (9) is fixedly installed on the top of the fixing ring (7). The guide post (9) is slidably connected through the piston plate (6).

2. The ink filtering mechanism of claim 1, wherein, The output end of the drive motor (4) is fixedly equipped with a second bevel gear (11), and the top of the threaded rod (5) is fixedly equipped with a first bevel gear (10) located above the filter tank (1), and the first bevel gear (10) meshes with the second bevel gear (11).

3. The ink filtration mechanism of claim 1, wherein, The inner ring surface of the fixed ring (7) is integrally connected to the connecting plate (14), and the other end of the connecting plate (14) is integrally connected to the rotating seat (15). The bottom of the threaded rod (5) is rotatably connected to the middle part of the rotating seat (15).

4. The ink filtration mechanism of claim 3, wherein, The top middle of the connecting plate (14) is fixedly installed with the bottom of the guide post (9), and the top of the guide post (9) is fixedly installed with the top of the inside of the filter tank (1).

5. The ink filtration mechanism of claim 1, wherein, The filter tank (1) is integrally connected to a mounting bracket (13) located below the feed inlet (2). The filter screen (8) is fixedly installed on the top of the mounting bracket (13). The filter tank (1) is provided with multiple mounting brackets (13), and the multiple filter screens (8) are arranged from top to bottom in order of increasing filtration accuracy.

6. The ink filtration mechanism of claim 1, wherein, A gas guide pipe (12) is fixedly installed at the bottom of one side of the filter tank (1). The top of the gas guide pipe (12) is higher than the feed inlet (2). A one-way valve is provided at the top of the gas guide pipe (12).

7. The ink filtration mechanism of claim 1, wherein, A linear bearing is provided at the through connection between the piston plate (6) and the guide column (9). The guide column (9) is slidably connected through the linear bearing. The outer circumferential surface of the piston plate (6) is in sliding contact with the inner wall of the filter tank (1).

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