Printing ink filtering and dispersing device

Abstract

The utility model discloses a printing ink filtering and dispersing device and belongs to the technical field of printing ink. One side of the upper part of the tank body is communicated with a feeding pipe; the bottom end of the tank body is communicated with a discharging pipe; the top end of the tank body is connected with a cover plate through a flange; a driver is arranged on the cover plate in a penetrating manner; a first filter screen is in threaded connection with the upper end of the inner wall of the tank body, and a second filter screen is in threaded connection with the lower wall of the inner wall of the tank body. The stirring assembly is provided with double layers of stirring blades, the stirring assembly is matched with a spiral flow guide groove in the inner wall of the sleeve, the middle stirring blade forms downward suction axial flow during rotation, the bottom stirring blade generates outward diffusion radial flow, and the spiral flow guide groove guides printing ink to form spiral vortex, so that the printing ink circularly flows inside and outside the sleeve; the shearing, crushing and mixing effects are enhanced.

Description

Technical Field

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

[0002] Ink is an important material used in printing, and solvent-based ink refers to an ink system in which pigments or dyes are dispersed in a carrier. The carrier is usually an organic solvent or a solvent-based polymer film-forming agent, etc. This type of ink has a wide range of applications in the market.

[0003] Existing filtration and dispersion devices have a simple stirring structure, which easily leads to uneven ink mixing. Moreover, the ink near the inner wall of the tank will adhere and accumulate due to the lack of effective stirring, affecting the uniformity and efficiency of the mixing effect. Utility Model Content

[0004] The purpose of this invention is to provide an ink filtration and dispersion device. This device includes a stirring assembly with double-layered stirring blades and a spiral guide groove on the inner wall of the sleeve. During rotation, the central stirring blades create a downward-drawing axial flow, while the bottom stirring blades generate an outward-diffusion radial flow. The spiral guide groove guides the ink to form a spiral vortex, causing the ink to circulate inside and outside the sleeve. This enhances the shearing, crushing, and mixing effects, effectively dispersing pigment agglomerates and promoting uniform mixing of the filtered ink. Simultaneously, a scraper rotates synchronously with the sleeve, continuously scraping away ink adhering to the inner wall of the tank, preventing material retention and scaling, and ensuring a highly efficient and stable stirring and dispersion process.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model relates to an ink filtration and dispersion device, comprising a tank body, an inlet pipe connected to one side of the upper part of the tank body, an outlet pipe connected to the bottom end of the tank body, a cover plate connected to the top of the tank body via a flange, a driver being installed through the cover plate, a stirring assembly being installed at the bottom end of the driver, the stirring assembly including a stirring shaft, stirring blades fixedly connected to the stirring shaft, a connecting rod welded to the upper part of the stirring shaft, a sleeve welded to one end of the connecting rod, a scraper welded to the outside of the sleeve, a first filter screen threadedly connected to the upper end of the inner wall of the tank body, and a second filter screen threadedly connected to the lower wall of the inner wall of the tank body.

[0007] Furthermore, the tank body is a cylindrical shape with openings at both the top and bottom. A feed hole is provided through the upper part of the tank body, and one end of the feed pipe is welded to the feed hole. The discharge pipe is set in a funnel shape, and the top end of the discharge pipe is welded to the bottom opening of the tank body.

[0008] Furthermore, the cover plate is arranged in a disc shape, with the bottom surface of the cover plate abutting against the opening at the top of the tank. A mounting hole is opened through the middle of the cover plate, and a coupling is provided at the bottom of the driver. The lower part of the coupling extends through the mounting hole and is located inside the tank. The driver is connected to the stirring shaft through the coupling, and the stirring assembly is located inside the tank.

[0009] Furthermore, the stirring shaft is fixedly connected to the sleeve via a connecting rod. The sleeve is a cylindrical shape with openings at both the top and bottom. There are two stirring blades, one of which is located in the middle of the sleeve, and the other is extended through the stirring shaft and positioned below the opening at the bottom of the sleeve. The scraper is a "C" shaped plate, and there are two scrapers. The two scrapers are welded to opposite sides of the outer wall of the sleeve, and the outer sides of the two scrapers abut against one side of the inner wall of the tank.

[0010] Furthermore, the first filter screen is located above the sleeve, and an opening is formed through the middle of the first filter screen. The stirring shaft extends through the opening and is located below the first filter screen. The second filter screen has a tapered cross-section and is located below the opening of the sleeve.

[0011] This utility model has the following beneficial effects:

[0012] This invention features a stirring assembly with double-layered stirring blades and a spiral guide groove on the inner wall of the sleeve. During rotation, the central stirring blades create a downward-drawing axial flow, while the bottom stirring blades generate an outward-diffusion radial flow. The spiral guide groove guides the ink to form a spiral vortex, causing the ink to circulate inside and outside the sleeve. This enhances the shearing, crushing, and mixing effects, effectively dispersing pigment agglomerates and promoting uniform mixing of the filtered ink. Simultaneously, the scraper rotates synchronously with the sleeve, continuously scraping away ink adhering to the inner wall of the tank, preventing material retention and scaling, and ensuring a highly efficient and stable stirring and dispersion process.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the filtration and dispersion device;

[0015] Figure 2 This is a schematic diagram of the internal structure of a filtration and dispersion device.

[0016] Figure 3 This is a schematic diagram of the stirring assembly.

[0017] Figure 4 This is a schematic diagram of the tank, the first filter screen, and the second filter screen.

[0018] In the diagram: 1. Tank body; 2. Feed pipe; 3. Discharge pipe; 4. Cover plate; 5. Driver; 6. Stirring assembly; 601. Stirring shaft; 602. Stirring blade; 603. Connecting rod; 604. Sleeve; 605. Scraper; 7. First filter screen; 8. Second filter screen. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4This utility model provides a technical solution: an ink filtering and dispersing device, including a tank 1, with a feed pipe 2 connected to one side of the upper part of the tank 1 and a discharge pipe 3 connected to the bottom end of the tank 1. Both the feed pipe 2 and the discharge pipe 3 are equipped with flow regulating valves to control the ink flow rate. The tank 1 is cylindrical with openings at both the top and bottom. A feed hole is provided through the upper part of the tank 1. One end of the feed pipe 2 is welded to the feed hole. The discharge pipe 3 is funnel-shaped, with its top opening welded to the bottom opening of the tank 1. A cover plate 4 is connected to the top of the tank 1 via a flange. A driver 5 is installed through the cover plate 4, and a stirring assembly 6 is installed at the bottom of the driver 5. The cover plate 4 is disc-shaped, with its bottom surface abutting against the top opening of the tank 1. A mounting bracket is provided through the middle of the cover plate 4. A coupling is provided at the bottom of the driver 5, with the lower part of the coupling extending through the mounting hole into the tank body 1. The driver 5 is connected to the stirring shaft 601 via the coupling. The stirring shaft 601 and the coupling are connected by a key to transmit torque. The stirring assembly 6 is located inside the tank body 1. The stirring assembly 6 includes a stirring shaft 601, with stirring blades 602 fixedly connected to the stirring shaft 601. A connecting rod 603 is welded to the upper part of the stirring shaft 601, and a sleeve 604 is welded to one end of the connecting rod 603. A scraper 605 is welded to the outside of the sleeve 604. The stirring shaft 601 is fixedly connected to the sleeve 604 via the connecting rod 603. The inner wall of the sleeve 604 is provided with spiral guide grooves to guide the ink to form vortices and enhance the dispersion effect. The sleeve 604 is a cylindrical shape with openings at both the top and bottom. The number of stirring blades 602 is... There are two agitator blades. One agitator blade 602 is located in the middle of the sleeve 604. The agitator blade 602 in the middle of the sleeve 604 rotates to make the ink flow downward. The other agitator blade 602 extends through the agitator shaft 601 and is located below the bottom opening of the sleeve 604. The bottom agitator blade 602 rotates to make the ink spread in all directions. The scraper blades 605 are C-shaped plates. There are two scraper blades 605. The two scraper blades 605 are welded to opposite sides of the outer wall of the sleeve 604. The outer sides of the two scraper blades 605 are respectively abutted against one side of the inner wall of the tank body 1. The upper end of the inner wall of the tank body 1 is threaded with a first filter screen 7, and the lower end of the inner wall of the tank body 1 is threaded with a second filter screen 8. The first filter screen 7 is located above the sleeve 604. The first filter screen 7 has an opening through its middle. The ink undergoes primary filtration, mainly intercepting large particulate impurities. A sealing ring is installed between the central opening and the stirring shaft 601 to prevent leakage of unfiltered ink. The stirring shaft 601 extends through the opening and is positioned below the first filter screen 7. When the stirring assembly 6 rotates, the ink above the first filter screen 7 passes through the mesh under pressure difference. The preliminarily purified ink enters the interior through the upper opening of the sleeve 604. The second filter screen 8 has a conical cross-section and is located below the opening of the sleeve 604. The second filter screen 8 performs fine filtration of the ink and is made of sintered metal porous material, mainly intercepting micron-sized particles and agglomerates. After flowing out from the bottom of the sleeve 604, the ink diffuses outwards under the centrifugal force of the bottom stirring blades 602 and passes through the second filter screen 8.The conical design allows impurities to naturally slide to the bottom center of the second filter 8, preventing them from accumulating and clogging. The two filters work synergistically through pore size gradient and structural design to achieve multi-stage purification and enhanced dispersion of the ink. The actuator 5 mentioned above is existing technology and will not be elaborated upon further.

[0021] First, connect an external power source to the electrical equipment in this device and place the device in the designated working position. During operation, the ink enters the tank 1 through the feed pipe 2 and first passes through the first filter screen 7 to intercept large particles of impurities. The driver 5 drives the stirring assembly 6 to rotate, creating a negative pressure zone inside the sleeve 604 to accelerate the flow of ink. The ink is initially dispersed by the middle stirring blade 602 inside the sleeve 604 and then further dispersed by the bottom stirring blade 602. The scraper 605 continuously cleans the inner wall of the tank 1 to prevent ink adhesion. The dispersed ink is then finely filtered through the second filter screen 8. The conical structure causes impurities to gather towards the center, facilitating periodic slag discharge. The filtered ink is discharged through the discharge pipe 3. This device achieves efficient and continuous production through the synergistic effect of double-layer filter screens and multi-stage stirring and dispersion.

[0022] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An ink filtration and dispersion device, comprising a tank (1), characterized in that: The upper side of the tank (1) is connected to the feed pipe (2), the bottom end of the tank (1) is connected to the discharge pipe (3), the top of the tank (1) is connected to the cover plate (4) through the flange, the cover plate (4) is installed through the drive (5), the bottom end of the drive (5) is installed with the stirring assembly (6), the stirring assembly (6) includes the stirring shaft (601), the stirring blade (602) is fixedly connected to the stirring shaft (601), the upper part of the stirring shaft (601) is welded with the connecting rod (603), one end of the connecting rod (603) is welded with the sleeve (604), the outside of the sleeve (604) is welded with the scraper (605), the upper end of the inner wall of the tank (1) is threaded with the first filter screen (7), and the lower wall of the inner wall of the tank (1) is threaded with the second filter screen (8).

2. The ink filtering and dispersing device according to claim 1, characterized in that, The tank (1) is a cylindrical shape with openings at both the top and bottom. A feed hole is provided through the upper part of the tank (1). One end of the feed pipe (2) is welded to the feed hole. The discharge pipe (3) is funnel-shaped and the top end of the discharge pipe (3) is welded to the bottom opening of the tank (1).

3. The ink filtering and dispersing device according to claim 1, characterized in that, The cover plate (4) is arranged in a disc shape. The bottom surface of the cover plate (4) is abutted against the top opening of the tank body (1). The middle of the cover plate (4) is provided with a mounting hole. The bottom of the driver (5) is provided with a coupling. The lower part of the coupling extends through the mounting hole and is provided inside the tank body (1). The driver (5) is connected to the stirring shaft (601) through the coupling. The stirring assembly (6) is located inside the tank body (1).

4. The ink filtering and dispersing device according to claim 3, characterized in that, The stirring shaft (601) is fixedly connected to the sleeve (604) via a connecting rod (603). The sleeve (604) is a cylindrical shape with openings at both the top and bottom. There are two stirring blades (602). One stirring blade (602) is located in the middle of the sleeve (604), and the other stirring blade (602) extends from the stirring shaft (601) and is disposed at the lower part of the bottom opening of the sleeve (604). The scraper (605) is in the shape of a "C". There are two scrapers (605). The two scrapers (605) are respectively welded to opposite sides of the outer wall of the sleeve (604), and the outer sides of the two scrapers (605) respectively abut against one side of the inner wall of the tank (1).

5. The ink filtering and dispersing device according to claim 4, characterized in that, The first filter screen (7) is located above the sleeve (604), and an opening is provided through the middle of the first filter screen (7). The stirring shaft (601) extends through the opening and is located at the lower part of the first filter screen (7). The second filter screen (8) has a tapered cross section and is located at the lower part of the opening of the sleeve (604).

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