A smart foam sensing and defoaming device for water-based inks
By combining optical foam sensors and defoaming paddles with the design of filter plates, the problem of residual impurities after ink defoaming is solved, achieving rapid purification and stable production, and reducing production costs and printing defect rates.
Patent Information
- Application Number
- CN202522259961.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-10-27
AI Technical Summary
Existing technologies struggle to remove impurities after ink defoaming, leading to increased ink processing time and unstable performance.
An optical foam sensor is used to detect the amount of foam in real time, which drives the defoaming paddle to rotate and defoam. A filter plate is also provided to filter the foam after defoaming and remove impurities.
It enables rapid defoaming and purification of ink, reduces the need for manual monitoring, lowers production costs, and improves product quality stability and printability.
Smart Images

Figure CN224937705U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water-based ink processing technology, and in particular to a smart foam sensing and defoaming device for water-based ink. Background Technology
[0002] Chinese patent document CN219544264U discloses a defoaming device for gravure printing ink, comprising a defoaming tank, a lead screw rotatably passing through the top of the defoaming tank, and a motor connected to the end of the lead screw; a lifting plate, which is cross-shaped, with four vertical rods arranged in a ring inside the defoaming tank, the middle of the lifting plate threaded onto the lead screw, and the four ends of the lifting plate slidably fitted onto the four vertical rods; and a movable block threaded onto the lead screw and rotatably connected to the top of the lifting plate, the outer surface of which is provided with several support plates arranged in a ring. The lifting plate can reciprocate up and down along the lead screw. During the movement of the lifting plate, the support plates stir the ink, and the vibrating plate vibrates the ink, allowing for uniform stirring and vibration of the ink as a whole, thereby effectively defoaming the ink and improving its defoaming effect.
[0003] The aforementioned defoaming equipment for gravure printing ink has difficulty filtering the ink during defoaming. Therefore, impurities may remain inside the ink after defoaming, requiring further processing and thus increasing the ink processing time. Utility Model Content
[0004] The purpose of this invention is to provide an intelligent sensing and defoaming device for water-based ink foam, which can solve the problem that impurities may remain inside the ink after defoaming, requiring deep processing and thus increasing ink processing time.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a water-based ink foam intelligent sensing and defoaming device, including a defoaming tank, a defoaming component and a filter component, wherein a feed pipe is fixedly installed on one side of the defoaming tank, one end of the feed pipe extends into the interior of the defoaming tank and the defoaming tank is transparent. The defoaming component is located on the defoaming tank. The defoaming component includes an electric push rod, a defoaming paddle, and an optical foam sensor. The optical foam sensor is located inside the defoaming tank, and the electric push rod is used to drive the defoaming paddle to move up and down. A filter assembly is disposed on the defoaming tank, and the filter assembly includes a filter plate.
[0006] Preferably, the defoaming assembly further includes a motor housing, an annular plate, a drive motor, a rotating rod, a guide plate, and a discharge pipe. An electric push rod is fixedly installed on the top of the defoaming tank. The free end of the electric push rod extends into the interior of the defoaming tank and is fixedly installed with a motor housing. An annular plate is fixedly installed at the bottom of the motor housing. A rotating rod is rotatably installed at the bottom of the annular plate. A defoaming paddle is fixedly installed on the outer wall of the rotating rod. A drive motor is fixedly installed on the top of the annular plate. The shaft of the drive motor is fixedly installed with one end of the rotating rod. An optical foam sensor is fixedly installed on the top inner side of the defoaming tank.
[0007] Preferably, a guide plate is fixedly installed on the inner wall of the defoaming tank, the bottom of the guide plate is fixedly installed with the bottom of the inner side of the defoaming tank, and a discharge pipe is fixedly installed at the bottom of the defoaming tank. The discharge pipe is equipped with a shut-off valve and one end of the discharge pipe extends into the interior of the defoaming tank.
[0008] Preferably, the filter assembly further includes a filter box, a discharge pipe, an annular ring, a mounting side plate, and a mounting rod. The annular ring is fixedly installed on the inner wall of the filter box, and a filter plate is placed on top of the annular ring. The outer wall of the filter plate is in contact with the inner wall of the filter box but is not fixed.
[0009] Preferably, a discharge pipe is fixedly installed at the bottom of the filter box, one end of which extends into the interior of the filter box and is located below the filter plate.
[0010] Preferably, an installation side plate is fixedly installed on the outer wall of the filter box, and an installation rod is fixedly installed on the top of the installation side plate. The top of the installation rod is fixedly installed to the bottom of the defoaming tank.
[0011] Preferably, the guide plate has a funnel-shaped design.
[0012] Compared with existing technologies, the beneficial effects of this invention are as follows: This intelligent foam sensing and defoaming device for water-based inks can detect the amount of foam on the top of the ink in real time through an optical foam sensor, avoiding the lag of traditional manual foam observation. Combined with a drive motor to rotate the defoaming paddle, the device can precisely initiate defoaming operations based on the detected foam level. The rotating defoaming paddle evenly covers the ink surface, quickly breaking up the foam and preventing residual foam from introducing air into the ink, thus ensuring the ink's leveling and printability. Furthermore, it eliminates the need for continuous manual monitoring, reducing labor costs and improving the level of intelligent production. The filter plate can filter ink during the feeding process after defoaming, intercepting any residual defoaming component wear debris, incompletely dissolved additive particles, or unresolved foam residue. Traditionally, ink is fed directly after defoaming, but if it contains impurities, additional deep filtration and purification processes are required. This not only increases labor and equipment investment but may also cause ink performance fluctuations due to repeated impurity treatment. The filter plate's filtration function can purify the ink in one step, eliminating the need for subsequent deep processing, reducing overall production costs, ensuring ink purity, reducing printing defects caused by impurities, and further improving product quality stability. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a perspective view of the present utility model; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is an enlarged view of part A of this utility model.
[0014] Reference numerals: 1. Defoaming tank; 2. Feed pipe; 3. Defoaming assembly; 301. Electric push rod; 302. Motor box; 303. Annular plate; 304. Drive motor; 305. Rotating rod; 306. Defoaming paddle; 307. Optical foam sensor; 308. Guide plate; 309. Discharge pipe; 4. Filter assembly; 401. Filter box; 402. Discharge pipe; 403. Annular ring; 404. Filter plate; 405. Mounting side plate; 406. Mounting rod. Detailed Implementation
[0015] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0016] Please see Figure 1-3This utility model provides a technical solution: a water-based ink foam intelligent sensing and defoaming device, including a defoaming tank 1, a defoaming component 3, and a filter component 4. A feed pipe 2 is fixedly installed on one side of the defoaming tank 1, and one end of the feed pipe 2 extends into the interior of the defoaming tank 1, and the defoaming tank 1 is transparent. The defoaming component 3 is disposed on the defoaming tank 1 and includes an electric push rod 301, a defoaming paddle 306, and an optical foam sensor 307. The optical foam sensor 307 is disposed inside the defoaming tank 1, and the electric push rod 301 is used to drive the defoaming paddle 306 to move up and down. The filter component 4 is disposed on the defoaming tank 1 and includes a filter plate 404.
[0017] Furthermore, the defoaming assembly 3 also includes a motor housing 302, an annular plate 303, a drive motor 304, a rotating rod 305, a guide plate 308, and a discharge pipe 309. An electric push rod 301 is fixedly installed on the top of the defoaming tank 1. The free end of the electric push rod 301 extends into the interior of the defoaming tank 1 and is fixedly installed with the motor housing 302. An annular plate 303 is fixedly installed on the bottom of the motor housing 302. A rotating rod 305 is rotatably installed on the bottom of the annular plate 303. A defoaming paddle 306 is fixedly installed on the outer wall of the rotating rod 305. A drive motor 304 is fixedly installed on the top of the annular plate 303. The shaft of the drive motor 304 is fixedly installed to one end of the rotating rod 305. An optical foam sensor is fixedly installed on the top inner side of the defoaming tank 1. The defoaming tank 1 is equipped with a flow guide plate 308 fixedly installed on its inner wall. The bottom of the flow guide plate 308 is fixedly installed to the bottom inner side of the defoaming tank 1. A discharge pipe 309 is fixedly installed at the bottom of the defoaming tank 1. The discharge pipe 309 is equipped with a shut-off valve and one end of the discharge pipe 309 extends into the interior of the defoaming tank 1. The filter assembly 4 also includes a filter box 401, a discharge pipe 402, an annular ring 403, a mounting side plate 405, and a mounting rod 406. The annular ring 403 is fixedly installed on the inner wall of the filter box 401. A filter plate 404 is placed on top of the annular ring 403. The outer wall of the filter plate 404 is in contact with the inner wall of the filter box 401 but is not fixed. The discharge pipe 402 is fixedly installed at the bottom of the filter box 401. One end of the discharge pipe 402... Extending into the interior of the filter box 401, with the discharge pipe 402 located below the filter plate 404, a mounting side plate 405 is fixedly installed on the outer wall of the filter box 401. A mounting rod 406 is fixedly installed on the top of the mounting side plate 405, and the top of the mounting rod 406 is fixedly installed to the bottom of the defoaming tank 1. The guide plate 308 has a funnel-shaped design. The optical foam sensor 307 can detect the amount of foam on the top of the ink in real time, avoiding the lag of traditional manual observation of foam. In conjunction with the drive motor 304, the defoaming paddle 306 is driven to rotate and defoam. The defoaming operation can be accurately started according to the detected foam situation. The rotation of the defoaming paddle 306 can evenly cover the ink surface, quickly break the foam, prevent foam residue from causing air to be mixed into the ink, and ensure the leveling of the ink and printing. The filter plate 404 offers excellent adaptability and eliminates the need for continuous manual monitoring, reducing labor costs and enhancing the level of intelligent production. Furthermore, it filters ink during the defoaming process, intercepting any residual defoaming component debris, incompletely dissolved additive particles, or unresolved foam residue. Traditionally, ink is directly fed after defoaming, requiring additional deep filtration and purification processes if impurities are present. This not only increases labor and equipment investment but can also lead to ink performance fluctuations due to repeated impurity treatment. The filtration function of the 404 filter plate achieves ink purification in one step, eliminating subsequent deep processing steps, reducing overall production costs, ensuring ink purity, reducing printing defects caused by impurities, and further improving product quality stability.
[0018] Working principle: The electric push rod 301, drive motor 304 and optical foam sensor 307 mentioned above are all existing technologies, so their internal structure and control method do not need to be described in detail. In use, the foamed ink is added into the defoaming tank 1 through the feed pipe 2. Then, the optical foam sensor 307 is activated to detect the foam on the ink. Then, the electric push rod 301 is activated to drive the defoaming paddle 306 to descend. When the defoaming paddle 306 contacts the ink, the drive motor 304 is activated to drive the rotating rod 305 and the defoaming paddle 306 to rotate, thus defoaming the ink. When the ink is discharged through the discharge pipe 309 into the filter box 401, it will be filtered by the filter plate 404 to remove impurities from the ink.
[0019] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A smart foam sensing and defoaming device for water-based inks, characterized in that, include: Defoaming tank (1), a feed pipe (2) is fixedly installed on one side of the defoaming tank (1), one end of the feed pipe (2) extends into the interior of the defoaming tank (1) and the defoaming tank (1) is transparent; The defoaming component (3) is located on the defoaming tank (1). The defoaming component (3) includes an electric push rod (301), a defoaming paddle (306), and an optical foam sensor (307). The optical foam sensor (307) is located inside the defoaming tank (1). The electric push rod (301) is used to drive the defoaming paddle (306) to move up and down. A filter assembly (4) is disposed on the defoaming tank (1), the filter assembly (4) including a filter plate (404).
2. The water-based ink foam intelligent sensing and defoaming device according to claim 1, characterized in that: The defoaming assembly (3) also includes a motor housing (302), an annular plate (303), a drive motor (304), a rotating rod (305), a guide plate (308), and a discharge pipe (309). An electric push rod (301) is fixedly installed on the top of the defoaming tank (1). The free end of the electric push rod (301) extends into the interior of the defoaming tank (1) and is fixedly installed with a motor housing (302). An annular plate (303) is fixedly installed at the bottom of the motor housing (302). A rotating rod (305) is rotatably installed at the bottom of the annular plate (303). A defoaming paddle (306) is fixedly installed on the outer wall of the rotating rod (305). A drive motor (304) is fixedly installed on the top of the annular plate (303). The shaft of the drive motor (304) is fixedly installed with one end of the rotating rod (305). An optical foam sensor (307) is fixedly installed on the top inner side of the defoaming tank (1).
3. The water-based ink foam intelligent sensing and defoaming device according to claim 2, characterized in that: The inner wall of the defoaming tank (1) is fixedly installed with a guide plate (308). The bottom of the guide plate (308) is fixedly installed with the bottom of the inner side of the defoaming tank (1). The bottom of the defoaming tank (1) is fixedly installed with a discharge pipe (309). The discharge pipe (309) is equipped with a shut-off valve and one end of the discharge pipe (309) extends into the interior of the defoaming tank (1).
4. The water-based ink foam intelligent sensing and defoaming device according to claim 3, characterized in that: The filter assembly (4) also includes a filter box (401), a discharge pipe (402), an annular ring (403), a mounting side plate (405), and a mounting rod (406). The annular ring (403) is fixedly installed on the inner wall of the filter box (401), and a filter plate (404) is placed on the top of the annular ring (403). The outer wall of the filter plate (404) is in contact with the inner wall of the filter box (401) but is not fixed.
5. The water-based ink foam intelligent sensing and defoaming device according to claim 4, characterized in that: A discharge pipe (402) is fixedly installed at the bottom of the filter box (401). One end of the discharge pipe (402) extends into the interior of the filter box (401) and the discharge pipe (402) is located below the filter plate (404).
6. The water-based ink foam intelligent sensing and defoaming device according to claim 5, characterized in that: The filter box (401) is fixedly installed with an installation side plate (405) on its outer wall. An installation rod (406) is fixedly installed on the top of the installation side plate (405). The top of the installation rod (406) is fixedly installed with the bottom of the defoaming tank (1).
7. The water-based ink foam intelligent sensing and defoaming device according to claim 6, characterized in that: The guide plate (308) has a funnel-shaped design.
Citation Information
Patent Citations
Gravure ink defoaming equipment
CN219544264U
