A water-based ink filter

Abstract

The invention discloses a water-based ink filter, belonging to the technical field of ink filtration, comprising a filter cartridge, wherein the interior of the filter cartridge is rotatably connected to a support tube, a filter screen is arranged inside the support tube, and a gap is arranged between the outer wall of the filter screen and the inner wall of the support tube; a plurality of inner support rings are evenly distributed inside the filter screen, a plurality of limiting rings corresponding to the inner support rings are fixed on the inner wall of the support tube, and annular grooves for clamping the inner support rings are arranged on the inner walls of the limiting rings; the gap design between the filter screen and the support tube of the invention ensures the smooth flow of ink during the filtration process, while effectively intercepting impurities and improving the filtration efficiency; the synchronous rotation design of the filter screen and the support tube utilizes the centrifugal force generated by the rotation, which helps to more effectively separate tiny particles and impurities in the ink and improve the filtration quality.

Description

Technical Field

[0001] The invention relates to a water-based ink filter, belonging to the technical field of ink filtration. Background Art

[0002] In existing water-based ink filtration technology, the filter is usually simply placed directly inside the support tube. This traditional arrangement has several limitations. First, due to the lack of sufficient support structure between the filter and the support tube, the filter is prone to wrinkling or swinging due to the pressure and flow of the ink during the filtration process, which not only affects the continuity and stability of the filtration, but may also lead to a reduction in the filtration area, thereby reducing the filtration efficiency.

[0003] Secondly, the traditional arrangement of the filter screen cannot fully utilize the centrifugal force to optimize the filtration process. When the ink is injected and flows through the filter screen, if the filter screen remains static, its filtration surface will remain fixed, which may cause the local area of ​​the filter screen to quickly clog and affect the overall filtration effect. Summary of the invention

[0004] The object of the present invention is to provide an aqueous ink filter to solve the problems raised in the above background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: a water-based ink filter, comprising:

[0006] Filter cartridges;

[0007] A support tube, the support tube is rotatably connected to the inside of the filter cartridge, the upper end of the support tube is open, and a plurality of grid holes for connecting the filter cartridge and the inner cavity of the support tube are evenly distributed on the surface of the support tube;

[0008] A filter screen, wherein the filter screen is arranged inside the support tube, and a gap is arranged between the outer wall of the filter screen and the inner wall of the support tube;

[0009] Among them, there are multiple inner support rings evenly distributed inside the filter, the outer walls of the inner support rings are fixedly connected to the inner wall of the filter, and multiple limit rings corresponding to the inner support rings are fixed on the inner wall of the support tube. The outer walls of the limit rings are fixed on the inner wall of the support tube, and the inner walls of the limit rings are provided with ring grooves for clamping the inner support rings.

[0010] Preferably, the filter screen height between two adjacent inner support rings is greater than the spacing between two adjacent limit rings;

[0011] When the inner support ring is installed in the ring groove of the corresponding limit ring, the filter screen between the two limit rings forms folds;

[0012] When water-based ink is injected into the filter screen and the support tube and the filter screen are rotated synchronously, the filter screen between the two limit rings is propped up outwards, and at this time there is still a gap between the outer wall of the filter screen and the inner wall of the support tube.

[0013] Preferably, a bracket for increasing the strength of the inner support ring is provided in the middle of the inner support ring.

[0014] Preferably, the support comprises a plurality of support rods which are evenly distributed in the inner wall of the inner support ring along the radius of the inner support ring, and the upper end faces and the lower end faces of the support rods are inclined relative to the end face of the inner support ring.

[0015] Preferably, the inner support ring and the bracket are made of a deformable rubber material, and the inner support ring and the bracket are covered with deformable ribs.

[0016] Preferably, a connecting ring is fixed to the upper port portion of the filter screen, a plurality of positioning grooves are evenly formed on the lower surface of the connecting ring, and a plurality of positioning blocks corresponding to the positioning grooves are provided on the upper port portion of the support tube.

[0017] Preferably, a sealing cover is provided at the upper end of the filter cartridge, a discharge port is provided at the lower end of the filter cartridge, and a filling port is provided on the sealing cover.

[0018] Preferably, the injection direction of the injection port is arranged tangent to the inner wall of the filter screen.

[0019] Compared with existing technologies:

[0020] The gap design between the filter screen and the support tube of the present invention ensures smooth flow of ink during the filtering process. When water-based ink is injected into the filter screen and the support tube and the filter screen are rotated synchronously, the filter screen between the two limit rings is propped outward due to the centrifugal force to form a dynamic and more stretched filtering surface. At this time, there is still a gap between the outer wall of the filter screen and the inner wall of the support tube. The filter screen is propped outward due to the centrifugal force during the rotation process, increasing the filtering area and thus improving the filtering efficiency. This dynamically changing filtering surface helps to reduce blockage and allows materials to pass through the filter screen more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present invention.

[0022] Figure 2 It is a front view of the overall structure in the first embodiment of the present invention.

[0023] Figure 3 For the present invention Figure 2 Sectional view at AA.

[0024] Figure 4 For the present invention Figure 3 Enlarged view of point B.

[0025] Figure 5 It is a schematic diagram of the state of the filter screen when it is supported externally in the second embodiment of the present invention.

[0026] Figure 6 It is a schematic diagram of the state of the filter screen when it is wrinkled in the second embodiment of the present invention.

[0027] Figure 7 It is an exploded view of the support tube, filter screen and inner support ring in the second embodiment of the present invention.

[0028] Figure 8 It is a schematic diagram of the structure of the inner support ring and the bracket in the third embodiment of the present invention.

[0029] Fig. 9 It is a cross-sectional view of the inner support ring and the bracket in the third embodiment of the present invention.

[0030] Fig.10 It is a top view of the injection port and the filter screen in the fourth embodiment of the present invention.

[0031] Fig.11 For the present invention Fig. 9 Enlarged view of point C.

[0032] In the figure:

[0033] 1. Filter cartridge, 101. Cover, 102. Discharge port, 103. Filling port;

[0034] 2. Support pipe, 201. Positioning block, 3. Filter screen;

[0035] 4. inner support ring, 401, bracket, 4011, support rod, 402, rib;

[0036] 5. Limiting ring, 501, ring groove;

[0037] 6. Connecting ring, 601, positioning groove;

[0038] 7. Motor. DETAILED DESCRIPTION

[0039] The present invention is described below with specific embodiments, but they are not intended to be limiting of the invention.

[0040] Embodiment 1

[0041] like Figure 1-Figure 4As shown, in this embodiment, a water-based ink filter is provided, including a filter cartridge 1, a cover 101 is provided at the upper end of the filter cartridge 1, a discharge port 102 is provided at the lower end of the filter cartridge 1, and a filling port 103 is provided on the cover 101; the filter cartridge 1 is rotatably connected to a support tube 2, the upper end of the support tube 2 is open, and a plurality of grid holes for connecting the filter cartridge 1 with the inner cavity of the support tube 2 are evenly distributed on the surface of the support tube 2; a filter screen 3 is provided inside the support tube 2, the filter screen 3 is in the shape of a filter bag, and the filter screen 3 is made of polypropylene, polyester or nylon and the like, the inner cavity of the filter screen 3 is connected with the filling port 103, after the ink is injected from the filling port 103, it enters the filter screen 3, and after being filtered by the filter screen 3, the ink penetrates the filter screen 3 and flows into the support tube 2, and impurities are intercepted inside the filter screen 3, and the filtered ink flows from the grid holes of the support tube 2 into the filter cartridge 1, and finally, the filtered ink is discharged from the discharge port 102.

[0042] A connecting ring 6 is fixed to the upper end of the filter 3, and a plurality of positioning grooves 601 are evenly arranged on the lower surface of the connecting ring 6. A plurality of positioning blocks 201 corresponding to the positioning grooves 601 are arranged on the upper end of the support tube 2, and the positioning grooves 601 are connected to the positioning blocks 201 by interference fit.

[0043] When the filter screen 3 is installed inside the support tube 2, the connecting ring 6 will first contact the upper end of the support tube 2. At the same time, the positioning groove 601 on the connecting ring 6 corresponds to and fits tightly with the positioning block 201 on the support tube 2. This fitting structure not only ensures the stable installation of the filter screen 3 in the support tube 2, but also facilitates subsequent disassembly and maintenance.

[0044] like Figure 3-Figure 4 As shown, a gap is provided between the outer wall of the filter screen 3 and the inner wall of the support tube 2. The setting of the gap can prevent part of the mesh holes of the filter screen 3 from being blocked by the inner wall of the support tube 2 (the inner wall of the support tube 2 without mesh holes), thereby ensuring the smooth flow of ink during the filtration process. In order to synchronously rotate the support tube 2 and the filter screen 3 and connect them inside the filter cartridge 1, a motor 7 is fixed at the bottom center position of the filter cartridge 1. The rotating shaft of the motor 7 extends to the inside of the filter cartridge 1 and is transmission-connected to the support tube 2, so that when the motor 7 rotates, the rotating shaft of the motor 7 drives the support tube 2 to rotate. When the support tube 2 rotates, the filter screen 3 rotates synchronously with the support tube 2.

[0045] Among them, there are multiple inner support rings 4 evenly distributed inside the filter 3, the outer wall of the inner support ring 4 is fixedly connected to the inner wall of the filter 3, and multiple limiting rings 5 ​​corresponding to the inner support ring 4 are fixed on the inner wall of the support tube 2. The outer wall of the limiting ring 5 is fixed on the inner wall of the support tube 2, and the inner wall of the limiting ring 5 is provided with a ring groove 501 for clamping the inner support ring 4. The inner support ring 4 is clamped in the ring groove 501 of the limiting ring 5, which can support the filter 3 in the support tube 2. When filtering ink, it can prevent the filter 3 from wrinkling and swinging in the support tube 2, thereby improving the filtering effect.

[0046] Embodiment 2

[0047] like Figure 5-Figure 7 As shown, on the basis of the first embodiment, in order to increase the filtering area and thus improve the filtering efficiency, the height of the filter screen 3 between two adjacent inner support rings 4 is greater than the spacing between two adjacent limiting rings 5; the height of the filter screen 3 between the two adjacent inner support rings 4 is: the height of the filter screen 3 naturally unfolded, for example: the height of the filter screen 3 between the two adjacent inner support rings 4 is 30 cm, and the spacing between the two adjacent limiting rings 5 ​​is 25 cm. In this way, when the filter screen 3 is installed in the support tube 2 and the inner support ring 4 is inserted into the corresponding annular groove 501, the filter screen 3 between the two limiting rings 5 ​​forms irregular folds (such as Figure 6 shown);

[0048] When water-based ink is injected into the filter screen 3 and the support tube 2 and the filter screen 3 are rotated synchronously, the filter screen 3 between the two limit rings 5 ​​is propped up outwards due to the centrifugal force (such as Figure 5 As shown in the figure, a dynamic and more stretched filtering surface is formed. At this time, there is still a gap between the outer wall of the filter screen 3 and the inner wall of the support tube 2. The filter screen 3 is propped outward due to the centrifugal force during the rotation process, increasing the filtering area and thus improving the filtering efficiency. This dynamically changing filtering surface helps to reduce blockage and allows materials to pass through the filter screen more smoothly.

[0049] Embodiment 3

[0050] like Figure 8-Figure 9 and Fig.11 As shown, based on the first embodiment, in order to enhance the strength of the inner support ring 4 and make the filter screen 3 more stable and reliable during the filtering process, the inner support ring 4 is used as a supporting structure of the filter screen 3, and a bracket 401 is added inside to enhance its overall strength. The bracket 401 is composed of a plurality of support rods 4011, which are evenly distributed in the inner wall of the inner support ring 4 along the radius of the inner support ring 4. The upper and lower end surfaces of the support rods 4011 are not parallel to the end surface of the inner support ring 4, but are inclined relative to it.

[0051] When the support tube 2 and the filter screen 3 rotate, the inner support ring 4 moves along Figure 7 When rotating in the direction of the arrow shown, the inclined setting of the support rod 4011 can produce a downward stirring effect on the ink in the filter screen 3, and the stirred ink can better penetrate the filter screen 3, thereby improving the filtering effect.

[0052] In addition, the inner support ring 4 and the bracket 401 are made of a deformable rubber material, which has good elasticity and toughness. During installation, the inner support ring 4 can be quickly installed into the annular groove 501 through the deformation of the inner support ring 4 and the bracket 401. At the same time, in order to enhance the supporting strength of the inner support ring 4 and the bracket 401, they are also covered with deformable ribs 402. The ribs 402, as a reinforcing structure, can provide additional supporting force for the inner support ring 4, prevent the inner support ring 4 from falling out of the annular groove 501 after excessive deformation, and improve the stability of the connection between the inner support ring 4 and the annular groove 501.

[0053] Embodiment 4

[0054] like Fig.10 As shown, based on the above embodiment, in order to further improve the filtering effect, the injection direction of the injection port 103 is set tangent to the inner wall of the filter screen 3. When the injection direction of the injection port 103 is set tangent to the inner wall of the filter screen 3, the material will enter the filter screen 3 along the tangent direction of the inner wall of the filter screen 3 during the injection process. When the ink enters the filter screen 3, a rotation or vortex effect can be formed, thereby increasing the contact area and contact time between the ink and the filter screen 3.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A water-based ink filter, characterized in that: include: Filter cartridge (1); A support tube (2), the support tube (2) being rotatably connected to the interior of the filter cartridge (1), the upper end of the support tube (2) being open, and a plurality of grid holes for connecting the filter cartridge (1) with the inner cavity of the support tube (2) being evenly distributed on the surface of the support tube (2); A filter screen (3), the filter screen (3) being arranged inside the support tube (2), and a gap being arranged between an outer wall of the filter screen (3) and an inner wall of the support tube (2); In particular, a plurality of inner support rings (4) are evenly distributed inside the filter screen (3), the outer walls of the inner support rings (4) are fixedly connected to the inner walls of the filter screen (3), a plurality of limit rings (5) corresponding to the inner support rings (4) are fixed on the inner wall of the support tube (2), the outer walls of the limit rings (5) are fixed on the inner wall of the support tube (2), and the inner walls of the limit rings (5) are provided with an annular groove (501) for clamping the inner support rings (4); The height of the filter screen (3) between two adjacent inner support rings (4) is greater than the distance between two adjacent limit rings (5); When the inner support ring (4) is installed in the annular groove (501) of the corresponding limiting ring (5), the filter screen (3) between the two limiting rings (5) forms wrinkles; When water-based ink is injected into the filter screen (3), and the support tube (2) and the filter screen (3) are rotated synchronously, the filter screen (3) between the two limit rings (5) is propped up outwards, and at this time, a gap still exists between the outer wall of the filter screen (3) and the inner wall of the support tube (2); A motor (7) is fixed at the center of the bottom of the filter cartridge (1); the rotating shaft of the motor (7) extends into the interior of the filter cartridge (1) and is drivingly connected to the support tube (2), so that when the motor (7) rotates, the rotating shaft of the motor (7) drives the support tube (2) to rotate; when the support tube (2) rotates, the filter screen (3) rotates synchronously with the support tube (2).

2. The aqueous ink filter according to claim 1, characterized in that: A bracket (401) for increasing the strength of the inner support ring (4) is provided in the middle of the inner support ring (4).

3. The aqueous ink filter according to claim 2, characterized in that: The support (401) comprises a plurality of support rods (4011), the plurality of support rods (4011) being evenly distributed in the inner wall of the inner support ring (4) along the radius of the inner support ring (4), and the upper end faces and the lower end faces of the support rods (4011) being arranged obliquely relative to the end face of the inner support ring (4).

4. The aqueous ink filter according to claim 3, characterized in that: The inner support ring (4) and the bracket (401) are made of a deformable rubber material, and the inner support ring (4) and the bracket (401) are covered with deformable ribs (402).

5. The aqueous ink filter according to claim 1, characterized in that: A connecting ring (6) is fixed to the upper end of the filter screen (3), a plurality of positioning grooves (601) are evenly arranged on the lower surface of the connecting ring (6), and a plurality of positioning blocks (201) corresponding to the positioning grooves (601) are arranged on the upper end of the support tube (2).

6. The aqueous ink filter according to claim 1, characterized in that: The upper end of the filter cartridge (1) is provided with a sealing cover (101), the lower end of the filter cartridge (1) is provided with a material outlet (102), and the sealing cover (101) is provided with a material injection port (103).

7. The aqueous ink filter according to claim 6, characterized in that: The injection direction of the injection port (103) is arranged tangentially to the inner wall of the filter screen (3).

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