Filter element mounting structure for conveying printing ink

By designing a filter cartridge installation structure in the ink delivery pump that combines positioning grooves and positioning columns, the problems of poor ink purity and inconvenient filter cartridge replacement are solved, achieving stable installation and sealing of the filter cartridge, and improving the quality of printed materials and work efficiency.

CN224245066UActive Publication Date: 2026-05-15YOUAI (SHANGHAI) CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YOUAI (SHANGHAI) CHEM CO LTD
Filing Date
2025-05-13
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing ink delivery pumps lack an effective filter installation structure, resulting in poor ink purity, affecting the quality of printed products, and making filter replacement inconvenient and prone to clogging.

Method used

A filter element installation structure was designed, comprising a base plate, frame, control box, delivery pump body, filter tank, and filter element body. The stable installation of the filter element is achieved through the cooperation of positioning groove and positioning column. Combined with the design of sealing gasket and rotating cover, sealing performance and convenient replacement are ensured.

Benefits of technology

It enables quick filter replacement and stable installation, avoiding problems such as poor ink purity and clogging, thus improving printing quality and work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of printing ink conveying pumps, and discloses a filter element mounting structure for printing ink conveying, which comprises a bottom plate and a frame positioned on the bottom plate, and a control box and a conveying pump body are fixedly mounted at the other end, far away from the bottom plate, of the frame. A pump body output pipe and a pump body input pipe which communicate with each other are arranged on the side, close to the control box, of the conveying pump body. According to the filter element mounting structure for printing ink conveying, when the filter element body is mounted, the filter element body is aligned with the filter tank, the edge of the filter element body is clamped into the clamping groove, and meanwhile, the positioning groove and the positioning column are correspondingly inserted, so that when the filter element assembly is mounted and replaced, the filter element body can be conveniently and quickly replaced, and the filter element can be prevented from transversely moving in the filter tank; and the positioning column is matched with the positioning groove to further position the filter element body, so that the filter element body can be conveniently replaced, and meanwhile, the influence on the subsequent ink quality or the need of secondary filtration caused by poor purity of the ink can be avoided.
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Description

Technical Field

[0001] This utility model relates to the field of ink delivery pump technology, specifically to a filter element installation structure for ink delivery. Background Technology

[0002] Ink is a crucial material in the printing process, and its quality directly affects the quality and effect of printed materials. If the ink contains too many impurities or particles, it may cause stains, streaks, or other undesirable effects on the printed materials. Filtering the ink with a filter cartridge can ensure the purity and stability of the ink, thereby improving the quality and consistency of the printed materials.

[0003] In existing technologies, traditional ink delivery pumps can also achieve normal ink delivery. However, existing technologies do not have a filter installation structure, which can easily lead to poor ink purity, thus affecting the quality of subsequent inks or requiring secondary filtration. This makes the working process more cumbersome and also makes it difficult to quickly replace the filter assembly. After prolonged use, it is prone to clogging, thus affecting normal operation. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a filter element installation structure for ink delivery, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted by this utility model is: an ink conveying filter element installation structure, including a base plate and a frame located on the base plate. A control box and a conveying pump body are fixedly installed on the other end of the frame away from the base plate. A pump body output pipe and a pump body input pipe are respectively provided on the side of the conveying pump body near the control box. A connecting valve is provided on the other end of the pump body input pipe away from the conveying pump body. A connecting pipe that communicates with the filter element assembly is provided on the other end of the connecting valve.

[0006] The filter element assembly includes a filter canister and an ink output canister that communicates with the filter canister. The filter element body is snapped into the filter canister. The filter element body has a filter groove one and a filter groove two near the ink output canister at the outer edge away from the center line. An installation cover is fixedly installed at the end of the filter canister away from the ink output canister. A rotating cover is threadedly connected to the end of the installation cover away from the filter canister.

[0007] Preferably, the filter tank has a through groove at the end near the ink output tank, and an ink input pipe is provided at the end of the filter tank away from the ink output tank. The ink input pipe is a flexible tube.

[0008] The above technical solution uses an ink inlet pipe as a flexible tube, which facilitates the adsorption of external ink and allows the ink to flow smoothly into the filter tank. Combined with the design of the through groove, the ink filtered by the filter element can enter the ink outlet tank, realizing the transmission of ink from input to filtration and then to output, and enabling the normal operation of the ink delivery pump.

[0009] Preferably, the filter canister has a slot at the end away from the ink output canister, a positioning post is fixedly installed at the end of the filter canister near the slot, and a positioning groove is provided at the end of the filter element body near the filter canister, with the filter element body matching the slot.

[0010] With the above technical solution, when installing the filter element body, align it with the filter tank so that the edge of the filter element body is engaged in the slot, and at the same time, insert the positioning slot and the positioning post into place. This facilitates quick replacement of the filter element body when installing and replacing the filter element assembly, and also prevents the filter element from moving laterally inside the filter tank. The cooperation between the positioning post and the positioning slot further positions the filter element body, ensuring the position of the filter element.

[0011] Preferably, the positioning groove is adapted to the positioning column, and multiple positioning grooves and positioning columns are provided, with the multiple positioning grooves and positioning columns arranged in a ring about the center line of the filter tank.

[0012] The above technical solution, through multiple ring-shaped positioning grooves and positioning columns, further enhances the stability of the filter element installation, prevents the filter element from rotating or shifting inside the filter tank, and ensures that the filter element is always in the correct position during the ink filtration process.

[0013] Preferably, a sealing gasket is provided at one end of the filter canister near the slot, the mounting cover and the rotating cover are threaded together, the rotating cover is in contact with the sealing gasket, and a handle is fixedly installed at the other end of the rotating cover away from the filter canister.

[0014] With the above technical solution, during installation, first place the sealing gasket in the corresponding position of the filter tank, then install the mounting cover, and finally rotate the rotating cover by the handle to connect it with the threaded mounting cover and press the sealing gasket. Under the pressure of the rotating cover, the sealing gasket fills the gap between the filter tank and the rotating cover, forming a sealing structure to prevent ink leakage during the filtration process.

[0015] Preferably, a push handle is fixedly installed at one end of the base plate near the frame, and a motor located on the same horizontal line as the delivery pump body is fixedly installed at the end of the base plate near the push handle and away from the push handle.

[0016] The above technical solution, through the design of the push handle, makes it easy to push the whole equipment, allowing the staff to move the ink delivery pump to different working positions according to production needs. In addition, the motor is mounted on the base plate and is at the same level as the delivery pump body, which can provide a power source for the delivery pump body.

[0017] Preferably, a drive wheel is fixedly mounted on the output shaft of the motor, a driven wheel is fixedly mounted on the output shaft of the conveying pump body, a conveyor belt is provided between the drive wheel and the driven wheel, and a connecting valve is provided between the connecting pipe and the filter tank.

[0018] With the above technical solution, after the motor starts, it drives the drive wheel to rotate, and transmits the power to the driven wheel through the conveyor belt, thereby driving the conveying pump body to operate and realize the conveying of ink. In addition, the design of connecting valve one and connecting valve two can facilitate the flow rate adjustment of ink conveying.

[0019] Compared with the prior art, the present invention provides a filter element mounting structure for ink delivery, which has the following advantages:

[0020] 1. The filter cartridge installation structure for ink delivery allows for quick and easy replacement of the filter cartridge body during installation. This prevents the filter cartridge from shifting laterally within the filter tank. The cooperation between the positioning pin and the positioning groove further positions the filter cartridge body, facilitating replacement and preventing issues such as poor ink purity affecting subsequent ink quality or requiring secondary filtration. This reduces cumbersome procedures and improves work efficiency.

[0021] 2. The filter cartridge installation structure for ink delivery involves first placing the sealing gasket in the corresponding position on the filter tank, then installing the mounting cover. Finally, rotating the rotating cover with the handle connects it to the threaded mounting cover and presses the sealing gasket tightly. Under the pressure of the rotating cover, the sealing gasket fills the gap between the filter tank and the rotating cover, forming a sealing structure to prevent ink leakage during filtration. This improves its sealing performance and also facilitates quick replacement of internal filter cartridges, avoiding poor filtration accuracy and easy clogging after prolonged use. It is highly practical. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3;

[0025] Figure 4 This is a three-dimensional structural diagram of the connecting pipe and filter element assembly of this utility model;

[0026] Figure 5 This is a schematic cross-sectional view of the filter element assembly of this utility model;

[0027] Figure 6 This is an exploded view of the filter element assembly of this utility model;

[0028] Figure 7 This is a schematic diagram of the disassembled structure of the filter element assembly of this utility model.

[0029] The components are as follows: 1. Base plate; 2. Frame; 3. Control box; 4. Push handle; 5. Motor; 6. Drive wheel; 7. Conveyor belt; 8. Pump body; 9. Driven wheel; 10. Pump body output pipe; 11. Pump body input pipe; 12. Connecting valve one; 13. Connecting pipe; 14. Connecting valve two; 15. Filter element assembly; 1501. Filter tank; 1502. Through groove; 1503. Ink output tank; 1504. Slot; 1505. Positioning post; 1506. Filter element body; 1507. Positioning groove; 1508. Filter tank one; 1509. Filter tank two; 1510. Sealing gasket; 1511. Mounting cover; 1512. Rotating cover; 1513. Handle; 16. Ink input pipe. Detailed Implementation

[0030] 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.

[0031] Example 1: As Figure 1-7 As shown, the ink conveying filter element installation structure provided by this utility model includes a base plate 1 and a frame 2 located on the base plate 1. A control box 3 and a conveying pump body 8 are fixedly installed on the other end of the frame 2 away from the base plate 1. A pump body output pipe 10 and a pump body input pipe 11 are respectively provided on the side of the conveying pump body 8 near the control box 3. A connecting valve 12 is provided on the other end of the pump body input pipe 11 away from the conveying pump body 8. A connecting pipe 13 that communicates with the filter element assembly 15 is provided on the other end of the connecting valve 12 away from the pump body input pipe 11.

[0032] The filter element assembly 15 includes a filter canister 1501 and an ink output canister 1503 that communicates with the filter canister 1501. The filter element body 1506 is snapped into the filter canister 1501. The filter element body 1506 has a filter groove 1508 and a filter groove 1509 near the ink output canister 1503 at the outer edge away from the center line. An installation cover 1511 is fixedly installed at the end of the filter canister 1501 away from the ink output canister 1503. A rotating cover 1512 is threadedly connected to the end of the installation cover 1511 away from the filter canister 1501.

[0033] Specifically, a through groove 1502 is provided at one end of the filter tank 1501 near the ink output tank 1503, and an ink input pipe 16 is provided at the other end of the filter tank 1501 away from the ink output tank 1503. The ink input pipe 16 is a flexible tube. The advantage is that by using the ink input pipe 16 as a flexible tube, it is easy to absorb external ink and allow the ink to flow smoothly into the filter tank 1501. With the design of the through groove 1502, the ink filtered by the filter element body 1506 can enter the ink output tank 1503, realizing the transmission of ink from input to filtration and then to output, and enabling the normal operation of the ink delivery pump.

[0034] Specifically, a slot 1504 is provided at the end of the filter tank 1501 away from the ink output tank 1503, and a positioning post 1505 is fixedly installed at the end of the filter tank 1501 near the slot 1504. A positioning groove 1507 is provided at the end of the filter element body 1506 near the filter tank 1501. The filter element body 1506 is adapted to the slot 1504. The advantage is that when installing the filter element body 1506, it is aligned with the filter tank 1501, so that the edge of the filter element body 1506 is engaged in the slot 1504. At the same time, the positioning groove 1507 is inserted into the positioning post 1505. When installing and replacing the filter element assembly 15, the filter element body 1506 can be replaced quickly and easily. It can also prevent the filter element from moving laterally in the filter tank 1501. The cooperation between the positioning post 1505 and the positioning groove 1507 further positions the filter element body 1506, ensuring the position of the filter element.

[0035] Specifically, the positioning groove 1507 is adapted to the positioning post 1505. Multiple positioning grooves 1507 and positioning posts 1505 are provided. The multiple positioning grooves 1507 and positioning posts 1505 are arranged in a ring about the center line of the filter tank 1501. The advantage is that the multiple ring-shaped positioning grooves 1507 and positioning posts 1505 further enhance the stability of the filter element body 1506 installation, prevent the filter element from rotating or shifting in the filter tank 1501, and ensure that the filter element body 1506 is always in the right position during the ink filtration process.

[0036] Example 2: Figure 2-7 As shown, this is an improvement on the previous embodiment.

[0037] Specifically, a sealing gasket 1510 is provided at one end of the filter tank 1501 near the slot 1504. The mounting cover 1511 and the rotating cover 1512 are threadedly connected, and the rotating cover 1512 contacts the sealing gasket 1510. A handle 1513 is fixedly installed at the other end of the rotating cover 1512 away from the filter tank 1501. The advantage is that during installation, the sealing gasket 1510 is first placed in the corresponding position of the filter tank 1501, then the mounting cover 1511 is installed, and finally the rotating cover 1512 is rotated by the handle 1513 to make it threadedly connected to the mounting cover 1511 and press the sealing gasket 1510. Under the pressure of the rotating cover 1512, the sealing gasket 1510 fills the gap between the filter tank 1501 and the rotating cover 1512, forming a sealing structure to prevent ink leakage during the filtration process.

[0038] Specifically, a push handle 4 is fixedly installed at one end of the base plate 1 near the frame 2, and a motor 5 is fixedly installed at the end of the base plate 1 near the push handle 4 and away from the push handle 4, which is on the same horizontal line as the conveying pump body 8. The advantage is that the design of the push handle 4 makes it easy to push the whole equipment, and it is convenient for the staff to move the ink conveying pump to different working positions according to production needs. In addition, the motor 5 is installed on the base plate 1 and is on the same horizontal line as the conveying pump body 8, which can provide a power source for the conveying pump body 8.

[0039] Specifically, a drive wheel 6 is fixedly mounted on the output shaft of motor 5, and a driven wheel 9 is fixedly mounted on the output shaft of the conveying pump body 8. A conveyor belt 7 is provided between the drive wheel 6 and the driven wheel 9. A connecting valve 14 is provided between the connecting pipe 13 and the filter tank 1501. The advantage is that after the motor 5 starts, it drives the drive wheel 6 to rotate, and the power is transmitted to the driven wheel 9 through the conveyor belt 7, thereby driving the conveying pump body 8 to operate and realize the delivery of ink. In addition, the design of connecting valve 12 and connecting valve 14 can facilitate the adjustment of the ink delivery flow rate.

[0040] Working principle: During use, after the motor 5 starts, it drives the drive wheel 6 to rotate, and transmits the power to the driven wheel 9 through the conveyor belt 7, thereby driving the conveying pump body 8 to operate, realizing the conveying of ink. The design of connecting valve 12 and connecting valve 2 14 facilitates the adjustment of ink conveying flow. The design of the push handle 4 makes it easy to push the whole equipment, allowing the operator to move the ink conveying pump to different working positions according to production needs. The motor 5 is mounted on the base plate 1 and is at the same horizontal line as the conveying pump body 8, providing a power source for the conveying pump body 8. During installation, first place the sealing gasket 1510 in the corresponding position of the filter tank 1501, then install the mounting cover 1511, and finally rotate the rotating cover 1512 by the handle 1513 to make it threadedly connected to the mounting cover 1511 and press the sealing gasket 1510. Under the pressure of the rotating cover 1512, the gap between the filter tank 1501 and the rotating cover 1512 is filled, forming a sealing structure to prevent ink leakage during filtration. The multiple annularly distributed positioning grooves 1507 and positioning posts 1505 further enhance the stability of the filter element body 1506 installation, preventing the filter element from rotating or shifting within the filter tank 1501. This ensures that the filter element body 1506 is always in the correct position during ink filtration. The ink inlet pipe 16 acts as a flexible tube, facilitating the adsorption of external ink and allowing the ink to flow smoothly into the filter tank 1501. Combined with the design of the through groove 1502, the ink filtered by the filter element body 1506 can enter the ink outlet tank 1503, realizing the transmission of ink from input to filtration and then to output, and enabling the normal operation of the ink delivery pump.

[0041] 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 conveying filter element mounting structure, comprising a base plate (1) and a frame (2) located on the base plate (1), wherein a control box (3) and a conveying pump body (8) are fixedly mounted at the other end of the frame (2) away from the base plate (1), characterized in that: The pump body (8) is provided with a pump body output pipe (10) and a pump body input pipe (11) that are interconnected on the side of the pump body (8) near the control box (3). The pump body input pipe (11) is provided with a connecting valve (12) at the other end away from the pump body (8). The connecting valve (12) is provided with a connecting pipe (13) that is interconnected with the filter element assembly (15) at the other end away from the pump body input pipe (11). The filter element assembly (15) includes a filter canister (1501) and an ink output canister (1503) communicating with the filter canister (1501). The filter element body (1506) is snapped into the filter canister (1501). The filter element body (1506) has a filter groove 1 (1508) and a filter groove 2 (1509) near the ink output canister (1503) at the outer edge away from the center line. An installation cover (1511) is fixedly installed at the end of the filter canister (1501) away from the ink output canister (1503). A rotating cover (1512) is threadedly connected to the end of the installation cover (1511) away from the filter canister (1501).

2. The filter element mounting structure for ink delivery according to claim 1, characterized in that: The filter tank (1501) has a through groove (1502) at one end near the ink output tank (1503), and an ink input pipe (16) is provided at the other end of the filter tank (1501) away from the ink output tank (1503). The ink input pipe (16) is a flexible tube.

3. The filter element mounting structure for ink delivery according to claim 2, characterized in that: The filter canister (1501) has a slot (1504) at the end away from the ink output canister (1503). A positioning post (1505) is fixedly installed at the end of the filter canister (1501) near the slot (1504). A positioning groove (1507) is provided at the end of the filter element body (1506) near the filter canister (1501). The filter element body (1506) is adapted to the slot (1504).

4. The filter element mounting structure for ink delivery according to claim 3, characterized in that: The positioning groove (1507) is adapted to the positioning column (1505), and multiple positioning grooves (1507) and positioning columns (1505) are provided. The multiple positioning grooves (1507) and positioning columns (1505) are distributed in a ring about the center line of the filter tank (1501).

5. The filter element mounting structure for ink delivery according to claim 4, characterized in that: A sealing gasket (1510) is provided at one end of the filter canister (1501) near the slot (1504). The mounting cover (1511) and the rotating cover (1512) are threaded together. The rotating cover (1512) is in contact with the sealing gasket (1510). A handle (1513) is fixedly installed at the other end of the rotating cover (1512) away from the filter canister (1501).

6. The filter element mounting structure for ink delivery according to claim 1, characterized in that: A push handle (4) is fixedly installed at one end of the base plate (1) near the frame (2), and a motor (5) is fixedly installed at the end of the base plate (1) near the push handle (4) and away from the push handle (4), which is located on the same horizontal line as the delivery pump body (8).

7. The filter element mounting structure for ink delivery according to claim 6, characterized in that: A drive wheel (6) is fixedly installed on the output shaft of the motor (5), a driven wheel (9) is fixedly installed on the output shaft of the conveying pump body (8), a conveyor belt (7) is provided between the drive wheel (6) and the driven wheel (9), and a connecting valve (14) is provided between the connecting pipe (13) and the filter tank (1501).