A dye ink filtering device

Abstract

The utility model provides a kind of dye ink filtering device, comprising: bucket, support foot is fixed on the outside wall of bucket;Cover plate, cover plate closes the opening of bucket upper end and forms working cavity, cover plate is detachably connected with bucket, and mounting hole is opened on cover plate;Filtering bucket, filtering bucket is installed in the inside of mounting hole, filtering assembly is equipped in filtering bucket, and filter rear cavity is formed between filtering assembly and filtering bucket bottom, first discharge pipe is fixedly arranged in the lower end of filtering bucket, one end of first discharge pipe is communicated with filter rear cavity, and the other end is communicated with working cavity;Negative pressure pipe, one end of negative pressure pipe is communicated with working cavity, and the other end is communicated with the air inlet end of negative pressure equipment.The utility model has beneficial effects: compared with gravity filtration, by extracting negative pressure in working cavity, the filtration efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of ink manufacturing technology, and in particular relates to a dye ink filtration device. Background Technology

[0002] Dye ink is an economical and efficient ink with a wide range of applications. In the production of dye ink, filtration devices are often used to precisely filter ink particles and impurities. Current ink filtration devices have the following problems: First, they rely on the gravity of the ink for filtration, which is inefficient; second, the installation and removal of filter cotton is complicated, affecting the efficiency of the production line. Utility Model Content

[0003] In view of this, the present invention aims to provide a dye ink filtration device in order to solve at least one of the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows: A dye ink filtration device, comprising: The barrel body has supporting feet fixedly provided on its outer side wall; A cover plate, which closes the opening at the top of the barrel to form a working chamber, is detachably connected to the barrel, and has mounting holes. A filter barrel is installed inside the mounting hole. A filter assembly is provided inside the filter barrel. A post-filter chamber is formed between the filter assembly and the bottom of the filter barrel. A first discharge pipe is fixed at the lower end of the filter barrel. One end of the first discharge pipe is connected to the post-filter chamber and the other end is connected to the working chamber. The negative pressure pipe has one end connected to the working chamber and the other end connected to the air inlet of the negative pressure equipment.

[0005] Furthermore, a first flange is fixedly provided on the outer side of the upper end of the barrel body, and the cover plate is detachably connected to the first flange by bolts, with a sealing gasket provided between the first flange and the cover plate; A second flange is fixedly provided on the side wall of the filter barrel. The second flange is detachably connected to the cover plate by bolts, and a sealing gasket is provided between the second flange and the cover plate.

[0006] Furthermore, the lower end of the barrel is an inverted conical structure, and a second discharge pipe is fixedly provided at the bottom end of the inverted conical structure of the barrel. The second discharge pipe is connected to the working chamber and a valve is connected to the second discharge pipe.

[0007] Furthermore, the lower end of the filter barrel is an inverted conical structure, and a first discharge pipe is fixedly provided at the bottom end of the inverted conical structure of the filter barrel. The barrel body is provided with a tapered tube, which is installed on the outside of the first discharge pipe. The inner diameter of the upper end of the tapered tube is larger than the outer diameter of the first discharge pipe, and the lower end of the tapered tube is fixedly connected to the inner wall of the barrel body.

[0008] Furthermore, the filter assembly includes filter cotton and filter discs. The filter discs have filter holes. There are two filter discs. The filter cotton is located between the two filter discs. An installation ring is fixed inside the filter barrel. The diameter of the filter disc matches the inner diameter of the filter barrel. The upper end of the installation ring supports the lower end face of the lower filter disc.

[0009] Furthermore, the filter barrel has a limiting hole on its side wall, and an internally threaded tube corresponding to the limiting hole is fixed on the side wall of the filter barrel. The internally threaded tube is internally threaded and connected to a limiting bolt. The limiting bolt passes through the limiting hole and is located inside the filter barrel. The limiting bolt limits the upper end face of the upper filter disc.

[0010] Furthermore, a top cover is fixedly provided at the upper end of the filter barrel, the top cover seals the upper opening of the filter barrel, a pre-filter chamber is formed between the top cover and the filter assembly, and a feed pipe is fixedly provided on the top cover, the feed pipe being connected to the pre-filter chamber.

[0011] Furthermore, a positioning ring matching the filter barrel is fixedly provided at the lower end of the upper cover, and an installation plate is fixedly provided at the lower end of the positioning ring. A positioning groove matching the internal threaded tube is opened on the side of the installation plate, and the internal threaded tube is installed inside the positioning groove.

[0012] Furthermore, the mounting plate has a U-shaped plate corresponding to the bottom of the positioning groove, and the head of the limiting bolt is pressed against the U-shaped plate.

[0013] Furthermore, the limiting bolt is a handle bolt.

[0014] Compared with the prior art, the dye ink filtration device of this utility model has the following advantages: (1) The dye ink filtration device described in this utility model improves the filtration efficiency by drawing negative pressure in the working chamber compared with gravity filtration.

[0015] (2) The dye ink filtration device of the present invention has a filter disc, a filter cotton, and a filter disc stacked from top to bottom. The two filter discs can prevent the filter cotton from deforming and improve the stability during use. The filter cotton is round and its outer diameter is larger than the inner diameter of the filter barrel. When the filter cotton is installed, the side wall of the filter cotton is compressed to reduce gaps and further ensure the filtration effect.

[0016] (3) The dye ink filtration device described in this utility model has a tapered tube that extends the airflow path below, which can alleviate the problem of water droplets being drawn away by vacuum. Attached Figure Description

[0017] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings: Figure 1 This is a three-dimensional structural diagram of the device described in an embodiment of the present utility model; Figure 2 As described in the embodiments of this utility model Figure 1 Schematic diagram of the structure at point A in the middle; Figure 3 This is a schematic cross-sectional view of the device described in an embodiment of the present invention; Figure 4 As described in the embodiments of this utility model Figure 3 Schematic diagram of the structure at point B; Figure 5 This is a schematic diagram of the three-dimensional structure of the upper cover according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of the three-dimensional structure of the cover plate according to an embodiment of the present utility model; Figure 7 This is a three-dimensional structural diagram of the filter bucket according to an embodiment of the present utility model.

[0018] Explanation of reference numerals in the attached figures: 1. Cover plate; 2. Barrel body; 3. Filter barrel; 4. Top cover; 5. Limit bolt; 6. Mounting ring; 7. Filter disc; 8. Filter cotton; 9. Conical tube; 101. Mounting hole; 102. Negative pressure pipe; 201. Support foot; 202. Second discharge pipe; 301. Internally threaded pipe; 302. First discharge pipe; 303. Second flange; 401. Positioning ring; 402. Mounting plate; 403. Positioning groove; 404. U-shaped plate; 405. Feed pipe. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] like Figures 1 to 7 As shown, a dye ink filtration device includes: a barrel 2, with three support feet 201 fixed on the outer side wall of the barrel 2, the three support feet 201 being evenly arranged circumferentially along the barrel 2; a cover plate 1, the cover plate 1 closing the opening at the upper end of the barrel 2 to form a working chamber, the cover plate 1 being detachably connected to the barrel 2, and the cover plate 1 having an installation hole 101; a filter barrel 3, the filter barrel 3 being installed inside the installation hole 101, the filter barrel 3 having a filter assembly inside, the filter assembly forming a post-filtration chamber between the filter barrel 3 and the bottom of the filter barrel 3, a first discharge pipe 302 fixed at the lower end of the filter barrel 3, one end of the first discharge pipe 302 communicating with the post-filtration chamber, and the other end communicating with the working chamber; and a negative pressure pipe 102, one end of the negative pressure pipe 102 communicating with the working chamber, and the other end communicating with the air inlet of a negative pressure device, the negative pressure device employing, but not limited to, an existing vacuum pump.

[0024] A first flange is fixedly provided on the outer side of the upper end of the barrel body 2. The cover plate 1 is detachably connected to the first flange by bolts. A sealing gasket is provided between the first flange and the cover plate 1, which improves the sealing performance and facilitates disassembly and maintenance. A second flange 303 is fixed on the side wall of the filter barrel 3. The second flange 303 is detachably connected to the cover plate 1 by bolts. A sealing gasket is provided between the second flange 303 and the cover plate 1, which improves the sealing performance and facilitates disassembly and maintenance.

[0025] The lower end of the barrel body 2 is an inverted cone-shaped structure. A second discharge pipe 202 is fixedly installed at the bottom end of the inverted cone-shaped structure of the barrel body 2. The second discharge pipe 202 is connected to the working chamber and is connected to a valve. The valve is, but is not limited to, the existing manual ball valve.

[0026] The lower end of the filter barrel 3 has an inverted conical structure. The bottom end of the inverted conical structure of the filter barrel 3 is fixed with a first discharge pipe 302. The lower end of the first discharge pipe 302 is close to the bottom of the barrel body 2. When there is a part of liquid, the lower end of the first discharge pipe 302 is below the water surface to prevent water splashing.

[0027] A tapered tube 9 is provided on the inner side of the barrel 2. The tapered tube 9 is installed on the outer side of the first discharge pipe 302. The inner diameter of the upper end of the tapered tube 9 is larger than the outer diameter of the first discharge pipe 302. The lower end of the tapered tube 9 is fixedly connected to the inner wall of the barrel 2. The tapered tube 9 extends the air flow path below, which can alleviate the problem of water droplets being drawn away by vacuum.

[0028] The filter assembly includes filter cotton 8 and filter discs 7. Filter discs 7 have filter holes, and there are two filter discs 7. Filter cotton 8 is located between the two filter discs 7. An installation ring 6 is fixed inside the filter barrel 3. The diameter of the filter disc 7 matches the inner diameter of the filter barrel 3. The upper end of the installation ring 6 supports the lower end face of the lower filter disc 7. The filter discs 7, filter cotton 8, and filter discs 7 are stacked sequentially from top to bottom. The arrangement of the two filter discs 7 helps prevent deformation of the filter cotton 8, improving stability during use. The filter cotton 8 is circular, and its outer diameter is larger than the inner diameter of the filter barrel 3. When installing the filter cotton 8, the sidewalls of the filter cotton 8 are compressed to reduce gaps, further ensuring the filtration effect.

[0029] The filter barrel 3 has two limiting holes on its side wall. The two limiting holes are evenly arranged circumferentially along the filter barrel 3. Each limiting hole is provided with an internally threaded tube 301. The internally threaded tube 301 corresponding to the limiting hole is fixed on the side wall of the filter barrel 3. The internal thread of the internally threaded tube 301 is connected to a limiting bolt 5. The limiting bolt 5 passes through the limiting hole and is located inside the filter barrel 3. The limiting bolt 5 limits the upper end face of the upper filter disc 7. When disassembling the filter assembly, loosening the limiting bolt 5 releases the upper filter disc 7, and the filter disc 7 and filter cotton 8 can be disassembled, which improves the replacement efficiency.

[0030] A top cover 4 is fixedly installed on the upper end of the filter barrel 3. The top cover 4 seals the upper opening of the filter barrel 3. A pre-filter chamber is formed between the top cover 4 and the filter assembly. A feed pipe 405 is fixedly installed on the top cover 4. The feed pipe 405 is connected to the previous process through a flexible hose. The feed pipe 405 is connected to the pre-filter chamber. A sealing gasket is provided between the top cover 4 and the filter barrel 3 to improve the sealing performance and prevent dust from entering the pre-filter chamber.

[0031] The lower end of the upper cover 4 is fixed with a positioning ring 401 that matches the filter barrel 3. The inner diameter of the positioning ring 401 matches the outer diameter of the filter barrel 3. The positioning ring 401 is located on the outside of the filter barrel 3. The lower end of the positioning ring 401 is fixed with a mounting plate 402. The side of the mounting plate 402 has a positioning groove 403 that matches the internal threaded tube 301. The internal threaded tube 301 is installed inside the positioning groove 403. The internal threaded tube 301 plays a limiting role for the positioning ring 401.

[0032] The mounting plate 402 has a U-shaped plate 404 corresponding to the bottom of the positioning groove 403. The head of the limiting bolt 5 is pressed against the U-shaped plate 404. When the limiting bolt 5 is tightened, the head of the limiting bolt 5 presses against the U-shaped plate 404, which plays a limiting role in the modification. To remove the top cover 4 and replace the filter assembly, it is only necessary to loosen the limiting bolt 5 and release the limiting operation of the U-shaped plate 404.

[0033] Limit bolt 5 is a handle bolt, which facilitates rotation.

[0034] Work process: When this solution is implemented, the vacuum pump is turned on. At this time, both the working chamber and the post-filter chamber are under negative pressure. The ink in the pre-filter chamber enters the post-filter chamber through the filter cotton 8 and flows through the first discharge pipe 302 to the working chamber for temporary storage. After being stored to a certain volume, it is moved to the next process.

[0035] Compared to gravity filtration, the filtration efficiency is improved by drawing negative pressure into the working chamber.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dye ink filtration device, characterized in that, include: The barrel body (2) has a support foot (201) fixed on its outer side wall; The cover plate (1) closes the opening at the upper end of the barrel body (2) to form a working chamber. The cover plate (1) is detachably connected to the barrel body (2). The cover plate (1) has an installation hole (101). A filter barrel (3) is installed inside the mounting hole (101). A filter assembly is provided inside the filter barrel (3). A post-filtering chamber is formed between the filter assembly and the bottom of the filter barrel (3). A first discharge pipe (302) is fixedly provided at the lower end of the filter barrel (3). One end of the first discharge pipe (302) is connected to the post-filtering chamber, and the other end is connected to the working chamber. The negative pressure pipe (102) is connected at one end to the working chamber and at the other end to the air inlet of the negative pressure device.

2. The dye ink filtration device according to claim 1, characterized in that: The upper outer side of the barrel body (2) is fixedly provided with a first flange, and the cover plate (1) is detachably connected to the first flange by bolts. A sealing gasket is provided between the first flange and the cover plate (1). The filter barrel (3) is fixedly provided with a second flange (303) on its side wall. The second flange (303) is detachably connected to the cover plate (1) by bolts. A sealing gasket is provided between the second flange (303) and the cover plate (1).

3. The dye ink filtration device according to claim 1, characterized in that: The lower end of the barrel (2) is an inverted cone structure. A second discharge pipe (202) is fixed at the bottom end of the inverted cone structure of the barrel (2). The second discharge pipe (202) is connected to the working chamber and a valve is connected to the second discharge pipe (202).

4. The dye ink filtration device according to claim 1, characterized in that: The lower end of the filter barrel (3) is an inverted conical structure, and the bottom end of the inverted conical structure of the filter barrel (3) is fixedly provided with a first discharge pipe (302); The inner side of the barrel (2) is provided with a tapered tube (9), which is installed on the outside of the first discharge pipe (302). The inner diameter of the upper end of the tapered tube (9) is larger than the outer diameter of the first discharge pipe (302), and the lower end of the tapered tube (9) is fixedly connected to the inner wall of the barrel (2).

5. The dye ink filtration device according to claim 1, characterized in that: The filter assembly includes filter cotton (8) and filter discs (7). The filter discs (7) have filter holes. There are two filter discs (7). The filter cotton (8) is located between the two filter discs (7). An installation ring (6) is fixed inside the filter barrel (3). The diameter of the filter discs (7) matches the inner diameter of the filter barrel (3). The upper end of the installation ring (6) supports the lower end face of the lower filter disc (7).

6. The dye ink filtration device according to claim 5, characterized in that: The filter barrel (3) has a limiting hole on its side wall. An internally threaded tube (301) corresponding to the limiting hole is fixed on the side wall of the filter barrel (3). The internally threaded tube (301) is internally threaded and connected to a limiting bolt (5). The limiting bolt (5) passes through the limiting hole and is located inside the filter barrel (3). The limiting bolt (5) limits the upper end face of the upper filter disc (7).

7. A dye ink filtration device according to claim 6, characterized in that: The filter barrel (3) is fixedly provided with an upper cover (4) at the upper end. The upper cover (4) seals the upper opening of the filter barrel (3). A pre-filter chamber is formed between the upper cover (4) and the filter assembly. A feed pipe (405) is fixedly provided on the upper cover (4). The feed pipe (405) is connected to the pre-filter chamber.

8. A dye ink filtration device according to claim 7, characterized in that: The lower end of the upper cover (4) is fixed with a positioning ring (401) that matches the filter barrel (3). The lower end of the positioning ring (401) is fixed with an mounting plate (402). The mounting plate (402) has a positioning groove (403) on its side that matches the internal threaded tube (301). The internal threaded tube (301) is installed inside the positioning groove (403).

9. A dye ink filtration device according to claim 8, characterized in that: The mounting plate (402) has a U-shaped plate (404) corresponding to the bottom of the positioning groove (403), and the head of the limiting bolt (5) is pressed against the U-shaped plate (404).

10. A dye ink filtration device according to claim 9, characterized in that: The limiting bolt (5) is a handle bolt.

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