A device for removing air bubbles from intaglio printing ink
The design of the self-cleaning component solves the problem of ink overflow in the vacuum defoamer, realizes automatic ink cleaning, and improves operating efficiency.
Patent Information
- Application Number
- CN202522136658.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-10
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-10
AI Technical Summary
When existing vacuum defoaming machines process inks containing low-boiling-point solvents, the ink volume increases instantaneously, easily overflowing the container and making cleaning difficult.
A self-cleaning component was designed, including an extrusion rod, an extrusion bar, a scraper, and a spring. The ink self-cleaning is achieved through a spiral design and the self-rotation of the scraper under negative pressure.
After defoaming, the scraper automatically scrapes and gathers the overflowing ink, reducing the burden of subsequent manual cleaning and improving operational efficiency.
Smart Images
Figure CN224675726U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum defoaming machine technology, specifically a device for removing air bubbles from gravure printing ink. Background Technology
[0002] During the gravure printing process, a large amount of air is incorporated into the ink during stirring, circulation, and transportation, forming bubbles. If ink containing bubbles is directly applied to the printing press, it can lead to quality problems such as white spots, pinholes, and pattern defects, severely affecting the product qualification rate. Therefore, a vacuum defoaming machine is usually used to defoam the ink before printing.
[0003] However, existing vacuum defoaming machines have significant drawbacks in actual use: for certain types of ink, especially those containing low-boiling-point solvents, the internal bubbles will expand rapidly in a vacuum environment, and some solvents will vaporize rapidly, causing the ink volume to increase instantly and the liquid level to rise rapidly, making it very easy to overflow from the container opening and creating a cleaning burden. Utility Model Content
[0004] The purpose of this invention is to provide a device for removing air bubbles from gravure printing ink, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for removing air bubbles from gravure printing ink, comprising a housing and a cover plate disposed on the top of the housing, wherein a valve is connected above the cover plate; A self-cleaning component is disposed within the housing; The self-cleaning component includes a scraper located at the bottom of the housing, with an extrusion strip above the scraper.
[0006] Preferably, the self-cleaning component further includes: An extrusion rod is provided below the cover plate to cooperate with the extrusion strip to make the scraper rotate and scrape off the seeping ink. A groove is formed on the surface of the extrusion bar to limit the lower end of the extrusion rod.
[0007] Preferably, the self-cleaning component further includes: The spring is located at the lower inner part of the housing, and its inner end is fixedly connected to the scraper through a shaft. It is used to drive the scraper to reverse after the extrusion rod and extrusion bar are released from extrusion, so as to self-clean the inner wall of the housing.
[0008] Preferably, the self-cleaning component further includes: The perforation is located on the upper inner part of the box to help the extrusion plate maintain vertical downward pressure and ensure the accuracy of the position when it aligns with the extrusion strip each time.
[0009] Preferably, both ends of the scraper are arc-shaped, which can completely scrape and gather the ink in the lower part of the box.
[0010] Preferably, the extrusion bar is spiral-shaped, which can drive the scraper to rotate one revolution when the extrusion rod presses down on the extrusion bar.
[0011] Preferably, the inner wall of the box is fixedly connected to a placement platform by a crossbar, and the placement platform is located above the extrusion strip and has an area larger than the center of the scraper.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: After defoaming, the operator opens the cover, the extrusion rod and extrusion strip move away from each other, and the spring releases pressure and drives the scraper to rotate. The two arc-shaped parts of the scraper rotate clockwise to scrape and gather the ink that seeps out of the inner wall of the box, achieving a self-cleaning effect and reducing the burden on the operator to clean the box in the small space. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the box body of this utility model; Figure 3 This is a schematic diagram of the extrusion rod of this utility model; Figure 4 This is a partial structural diagram of the self-cleaning component of this utility model; Figure 5 This is a schematic diagram of the scraper surface groove of this utility model; Figure 6 This is a schematic diagram of the perforation structure of this utility model.
[0014] In the diagram: 100, housing; 200, cover plate; 210, valve; 300, self-cleaning assembly; 310, extrusion rod; 320, extrusion strip; 321, chute; 330, scraper; 331, spring; 340, perforation; 400, placement platform. Detailed Implementation
[0015] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0016] Please see Figure 1-6As shown, a device for removing air bubbles from gravure printing ink includes a housing 100 and a cover plate 200 disposed above the housing 100, with a valve 210 connected above the cover plate 200. When defoaming the ink, the cover plate 200 should be opened first, and the container containing the ink should be placed on the placement platform 400. Then the cover plate 200 should be closed and the valve 210 should be opened. At this time, the defoaming operation can begin. The working principle is to reduce the pressure in the chamber to a negative pressure state through the valve 210, thereby reducing the solubility of dissolved air in the ink and causing the mixed bubbles to expand and burst, ultimately achieving the purpose of eliminating bubbles.
[0017] Self-cleaning component 300 is installed in housing 100; The self-cleaning component 300 also includes: a perforation 340, which is provided on the upper inner part of the housing 100 to help the extrusion plate maintain vertical downward pressure and ensure the accuracy of the position when it aligns with the extrusion strip 320 each time; When closing the cover plate 200 as described above, the lower end of the extrusion rod 310 needs to be passed through the perforation 340 and pressed vertically down onto the surface of the extrusion strip 320. This not only ensures the accurate docking position of the extrusion rod 310 and the extrusion strip 320, but also ensures the installation stability of the cover plate 200 by using the extrusion rod 310 in conjunction with the perforation 340. The self-cleaning assembly 300 also includes a groove 321, which is formed on the surface of the extrusion bar 320 to limit the lower end of the extrusion rod 310. When the extrusion rod 310 is aligned with the extrusion strip 320 along with the cover plate 200, the lower end of the extrusion rod 310 will vertically enter the groove 321 of the extrusion strip 320 because it is vertically limited by the perforation 340. The width of the groove 321 is the same as the diameter of the lower end of the extrusion rod 310, so the lower end of the extrusion rod 310 can be limited to maintain a uniform path during extrusion. The self-cleaning assembly 300 also includes: a squeezing rod 310, which is located below the cover plate 200 to cooperate with the squeezing strip 320 to make the scraper 330 rotate and scrape off the seeping ink; After the extrusion rod 310 contacts the extrusion strip 320, as the cover plate 200 moves down, the lower end of the extrusion rod 310 will press the extrusion strip 320. However, since the extrusion strip 320 is a spiral design, the pressure cannot be concentrated at one point. At this time, the upper part of the extrusion strip 320 is pressed, and it will drive the scraper 330 below to rotate. The spring 331 is located at the lower inner part of the housing 100. Its inner end is fixedly connected to the scraper 330 through a shaft. It is used to drive the scraper 330 to reverse after the extrusion rod 310 and the extrusion strip 320 are released from extrusion, so as to clean the inner wall of the housing 100. At this time, when the scraper 330 rotates, the shaft connected to the mainspring 331 below the scraper 330 will drive the inner end of the mainspring 331 to rotate, and the mainspring 331 will gradually tighten. The self-cleaning component 300 includes a scraper 330 disposed inside the lower part of the housing 100, and an extrusion strip 320 disposed above the scraper 330. During the defoaming process, the internal bubbles will expand rapidly in the vacuum environment, and some solvents will vaporize rapidly, causing the ink volume to increase instantly and the liquid level to rise rapidly. It is very easy for the ink to overflow from the container and drip onto the inner wall of the box 100. After the ink in the container has defoamed, the personnel open the cover plate 200. The cover plate 200 drives the extrusion rod 310 to rise. The extrusion rod 310 will no longer be in contact with the extrusion strip 320. At this time, the spring 331 will release pressure and drive the scraper 330 to reverse through the shaft. The scraper 330 can then rotate in the opposite direction and use the arc-shaped parts at both ends to scrape and gather the ink on the inner wall of the box 100, achieving a self-cleaning effect. It should be noted that the ink is a viscous fluid. After the scraper 330 scrapes and gathers the scattered ink into a pile, personnel only need to clean the local ink on the surface of the scraper 330, without the need for large-scale wiping and removal. The extrusion bar 320 has a spiral design, which can drive the scraper 330 to rotate one revolution when the extrusion rod 310 presses down on the extrusion bar 320. When the lower end of the extrusion rod 310 first connects with the extrusion strip 320, it contacts the upper end of the extrusion strip 320. Therefore, as the extrusion rod 310 gradually applies pressure, and because the groove 321 of the extrusion strip 320 has a long path, it can drive the scraper 330 to rotate at least one revolution, thereby achieving a comprehensive cleaning effect. Both ends of the scraper 330 are curved, which can completely scrape and gather the ink inside the lower part of the box 100; The inner wall of the box 100 is fixedly connected to a placement platform 400 by a crossbar. The placement platform 400 is located above the extrusion strip 320 and its area is larger than the center of the scraper 330. Working principle: When defoaming ink, the cover plate 200 must first be opened, and the container containing the ink placed on the placement platform 400. Then, the cover plate 200 is closed and the valve 210 is opened. At this point, the defoaming operation can begin. First, the pressure inside the chamber is reduced to a negative pressure state through the valve 210, thereby reducing the solubility of dissolved air in the ink and causing the mixed-in bubbles to expand and burst, ultimately achieving the purpose of eliminating bubbles. During the defoaming process, the internal bubbles will expand rapidly in the vacuum environment, and at the same time, some solvents will rapidly... Vaporization causes the ink volume to increase instantaneously, and the liquid level to rise rapidly. It is very easy for the ink to overflow from the container opening and drip onto the inner wall of the box 100. After defoaming, the personnel open the cover plate 200, and the extrusion rod 310 and extrusion strip 320 move away from each other. The spring 331 can release pressure and drive the scraper 330 to rotate. The two arc-shaped parts of the scraper 330 rotate clockwise to scrape and gather the ink that seeps out of the inner wall of the box 100, achieving a self-cleaning effect and reducing the burden on personnel to clean the small space in the box 100.
[0018] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A device for removing air bubbles from gravure printing ink, comprising a housing (100), characterized in that, Also includes: A cover plate (200) is provided above the housing (100), and a valve (210) is connected above the cover plate (200). A self-cleaning component (300) is disposed in a housing (100); The self-cleaning component (300) includes a scraper (330) disposed in the lower part of the housing (100), and an extrusion strip (320) is disposed above the scraper (330).
2. The device for removing air bubbles in gravure printing ink according to claim 1, characterized in that: The self-cleaning component (300) also includes: The extrusion bar (310) is located below the cover plate (200) and is used to cooperate with the extrusion strip (320) to make the scraper (330) rotate and scrape off the seeping ink. A groove (321) is formed on the surface of the extrusion bar (320) to limit the lower end of the extrusion rod (310).
3. The device for removing air bubbles in gravure printing ink according to claim 1, characterized in that: The self-cleaning component (300) also includes: The spring (331) is located at the lower inner part of the housing (100), and its inner end is fixedly connected to the scraper (330) through a shaft. It is used to drive the scraper (330) to reverse after the extrusion rod (310) and extrusion bar (320) are released from extrusion, so as to clean the inner wall of the housing (100) by itself.
4. The device for removing air bubbles in gravure printing ink according to claim 1, characterized in that: The self-cleaning component (300) also includes: A perforation (340) is provided on the upper inner part of the housing (100) to help the extrusion plate maintain vertical downward pressure and ensure the accuracy of the position when it aligns with the extrusion strip (320) each time.
5. The device for removing air bubbles in gravure printing ink according to claim 1, characterized in that: Both ends of the scraper (330) are arc-shaped, which can completely scrape and gather the ink inside the lower part of the box (100).
6. The device for removing air bubbles in gravure printing ink according to claim 1, characterized in that: The extrusion bar (320) is spirally designed, and when the extrusion rod (310) presses down on the extrusion bar (320), it can drive the scraper (330) to rotate one revolution.
7. The device for removing air bubbles in gravure printing ink according to claim 1, characterized in that: The inner wall of the box (100) is fixedly connected to a placement platform (400) by a crossbar. The placement platform (400) is located above the extrusion strip (320) and has an area larger than the center of the scraper (330).