An ink delivery system that maintains the color consistency of water-based paints
By setting up isolation and stirring mechanisms in the transfer tank, the hue of the coating can be monitored and adjusted in real time, thus solving the problem of unstable hue in water-based coatings and achieving continuous hue stability and protection of coating performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU ANGYUAN TECHNOLOGY CO LTD
- Filing Date
- 2025-09-16
- Publication Date
- 2026-06-19
AI Technical Summary
Water-based coatings have unstable hues during use, resulting in significant differences in hue between the final printed product and the standard sample. Furthermore, excessive adjustments to the solvent ratio can negatively impact coating performance.
An isolation mechanism divides the transfer tank into upper and lower chambers. A spectrometer is used to monitor the hue of the coating in real time. The coating is adjusted in the upper chamber by a stirring mechanism and then mixed with the coating from the mixing tank. After further adjustment, it is pumped into the ink tank, avoiding complete reliance on fine-tuning solvents to adjust the hue.
To ensure the color of water-based coatings remains stable, avoid excessively high solvent ratios during fine-tuning to prevent reduced coating viscosity and sagging during application.
Smart Images
Figure CN224371320U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of ink formulation technology, and more specifically, to an ink formulation system that maintains the continuous stability of the hue of water-based coatings. Background Technology
[0002] Water-based coatings are coatings that use water as a diluent and do not contain organic solvents. They can be dissolved in water or used as a dispersion carrier. During use, water-based coatings exhibit poor pigment dispersion, high surface tension, high volatility, and susceptibility to temperature and humidity fluctuations. Consequently, it is difficult to stably control the hue of the water-based coating on the final printed substrate during gravure printing, resulting in a significant difference between the hue of the final printed substrate and the hue of the standard sample.
[0003] In response, Chinese patent application number CN202420719596.X discloses an ink mixing system for maintaining the continuous stability of the hue of water-based coatings. This solution mainly utilizes a circulating transfer unit to adjust and correct the hue of the water-based coatings, ensuring that the hue of the mixed water-based coatings remains stable. This solves the technical problem in the prior art where the hue of the product differs from that of the standard sample due to the instability of the hue of the water-based coatings. At the same time, by connecting a fine-tuning solvent tank to the transfer tank, the hue of the water-based coatings in the transfer tank can be finely adjusted based on the fine-tuning solvent, so that the hue fluctuation of the finished substrate surface during mass production can be kept within the standard allowable error range.
[0004] However, in the process of implementing the technical solutions in the embodiments of this application, the inventors of this utility model discovered that the above-mentioned technology has at least the following technical problems:
[0005] Because the ink trough comes into contact with the coloring roller and the product, and is exposed to the atmosphere, the paint circulating back from the ink trough will have a certain color difference. The above solution uses fine-tuning solvent to fine-tune the hue. During the continuous circulation process, the proportion of fine-tuning solvent will exceed the standard, affecting the paint performance, such as significantly reducing the paint viscosity and causing sagging during construction. Utility Model Content
[0006] To overcome the above deficiencies, this application provides an ink formulation system that maintains the continuous stability of the hue of water-based coatings, aiming to improve the problems mentioned in the background art.
[0007] This application provides an ink mixing system for maintaining the continuous stability of the hue of water-based coatings, including a mixing unit, a transfer unit, and an ink tank. The mixing unit includes a raw material tank and a mixing tank, which are connected. The transfer unit includes a transfer tank, which is connected to the mixing tank. A fine-tuning solvent tank is connected to the transfer tank. An isolation mechanism is provided inside the transfer tank to divide it into upper and lower chambers. The upper chamber of the transfer tank is connected to the raw material tank. The upper and lower chambers of the transfer tank are respectively provided with a return pipe and a replenishment pipe, which are connected to the ink tank. The lower chamber of the transfer tank is connected to the mixing tank.
[0008] In one specific implementation, the upper and lower cavities of the transfer tank are both equipped with spectrometer probes.
[0009] In the above implementation process, the probe is used to monitor the hue of the coating in real time.
[0010] In one specific implementation, the isolation mechanism includes a partition and a turntable, both of which have fan-shaped through slots. The partition is fixedly connected to the inner wall of the transfer barrel, and the turntable is rotatably connected to the surface of the partition.
[0011] In the above process, when the through slots on the turntable and the partition are aligned, the upper and lower cavities of the transfer barrel are connected. When the turntable rotates, the through slots are misaligned, thus achieving the isolation function.
[0012] In one specific implementation, a rotating shaft and a cylinder are fixedly connected to the turntable. The rotating shaft moves upward through the intermediate transfer barrel. A swing arm is fixedly connected to the upper end of the rotating shaft. The two ends of the cylinder are respectively hinged to the swing arm and the intermediate transfer barrel.
[0013] In the above process, the cylinder pushes the swing arm to deflect, which in turn drives the rotating shaft and turntable to rotate, thereby realizing the opening and closing of the turntable.
[0014] In one specific implementation, the transfer tank is further provided with a stirring mechanism, which includes a stirring tube. The rotating shaft is rotatably connected to the inner wall of the stirring tube, and the stirring tube is rotatably connected to the transfer tank. The lower end of the stirring tube is located in the upper cavity of the transfer tank.
[0015] In one specific embodiment, the stirring mechanism further includes a stirring rod, which is rotatably connected to the inner wall of the rotating shaft. The lower end of the stirring rod is located in the lower cavity of the intermediate transfer tank, and blades are provided at the lower ends of both the stirring tube and the stirring rod.
[0016] In the above implementation process, the stirring tube is used to stir the coating in the upper cavity of the transfer tank, and the stirring rod is used to stir the coating in the lower cavity of the transfer tank. The upper ends of both the stirring tube and the stirring rod protrude from the upper part of the transfer tank, which facilitates the setting of the drive structure.
[0017] In one specific implementation, the stirring mechanism further includes a gear ring and a motor. The motor is mounted on the transfer tank, and a gear ring is fixedly connected to the outer end of both the stirring tube and the stirring rod. The motor is provided with gears that mesh with the two gear rings.
[0018] In the above process, the motor drives the gear to rotate, which in turn drives the two gear rings and their corresponding stirring tubes and stirring rods to rotate, thereby achieving the stirring effect.
[0019] In one specific implementation, the inlet of the fine-tuning solvent tank and the inlet of the raw material tank are both located directly above the through-slot.
[0020] In the above process, the raw material tank and the fine-tuning solvent can not only be added to the upper chamber of the transfer tank and mixed into the lower chamber after stirring, but also drip directly into the lower chamber when the through-slot is opened, which improves the flexibility of adjustment.
[0021] Compared with the prior art, the beneficial effects of this application are: by using an isolation mechanism to divide the transfer tank into upper and lower chambers, the paint returning from the ink tank is first adjusted in the upper chamber, then mixed with the paint from the mixing tank, adjusted again, and then pumped into the ink tank, ensuring that the hue is continuously stable, and also avoiding the situation where the hue is adjusted entirely by the fine-tuning solvent, which would lead to an excessively high proportion of fine-tuning solvent. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of an ink mixing system for maintaining the continuous stability of the hue of water-based coatings provided in the embodiments of this application;
[0024] Figure 2 A schematic diagram of the external view structure of the transfer barrel provided in the embodiments of this application;
[0025] Figure 3 This is a schematic diagram of the internal structure of the transfer barrel provided in the embodiments of this application.
[0026] In the diagram: 10-Raw material tank; 20-Mixing tank; 30-Transfer tank; 31-Return pipe; 32-Replenishment pipe; 33-Probe; 40-Fine-tuning solvent tank; 50-Ink tank; 60-Isolation mechanism; 61-Baffle plate; 62-Turntable; 63-Rotating shaft; 64-Cylinder; 65-Swing arm; 70-Stirring mechanism; 71-Stirring tube; 72-Stirring rod; 73-Gear ring; 74-Motor; 75-Gear. Detailed Implementation
[0027] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.
[0028] Please see Figures 1-3 This application provides an ink mixing system for maintaining the continuous stability of the hue of water-based coatings, including a mixing unit, a transfer unit, and an ink tank 50. The mixing unit includes a raw material tank 10 and a mixing tank 20, which are connected. The transfer unit includes a transfer tank 30, which is connected to the mixing tank 20. A fine-tuning solvent tank 40 is connected to the transfer tank 30. An isolation mechanism 60 is provided inside the transfer tank 30 to divide the transfer tank 30 into upper and lower chambers. The upper chamber of the transfer tank 30 is connected to the raw material tank 10. The upper and lower chambers of the transfer tank 30 are respectively provided with a return pipe 31 and a replenishment pipe 32, which are connected to the ink tank 50. The lower chamber of the transfer tank 30 is connected to the mixing tank 20. The intermediate tank 30 is divided into upper and lower chambers by the isolation mechanism 60. The paint returning from the ink tank 50 is first adjusted in the upper chamber, then mixed with the paint from the mixing tank 20, and adjusted again before being pumped into the ink tank 50. This ensures that the hue is continuously stable and avoids the situation where the hue is adjusted entirely by the fine-tuning solvent, which would lead to an excessively high proportion of fine-tuning solvent.
[0029] Please see Figures 1-3 The upper and lower cavities of the transfer tank 30 are equipped with spectrometer probes 33. The probes 33 are used to monitor the hue of the coating in real time.
[0030] Please see Figures 1-3 The isolation mechanism 60 includes a partition plate 61 and a turntable 62. Both the partition plate 61 and the turntable 62 have fan-shaped through slots. The partition plate 61 is fixedly connected to the inner wall of the intermediate transfer barrel 30, and the turntable 62 is rotatably connected to the surface of the partition plate 61. When the through slots on the turntable 62 and the partition plate 61 are aligned, the upper and lower cavities of the intermediate transfer barrel 30 are connected. When the turntable 62 rotates, the through slots are misaligned, thus achieving the isolation function.
[0031] Please see Figures 1-3 A rotating shaft 63 and a cylinder 64 are fixedly connected to the turntable 62. The rotating shaft 63 moves upward and passes through the intermediate transfer drum 30. A swing arm 65 is fixedly connected to the upper end of the rotating shaft 63. The two ends of the cylinder 64 are hinged to the swing arm 65 and the intermediate transfer drum 30, respectively. The cylinder 64 pushes the swing arm 65 to deflect, thereby driving the rotating shaft 63 and the turntable 62 to rotate, thus realizing the opening and closing of the turntable 62.
[0032] Please see Figures 1-3 The transfer tank 30 is also equipped with a stirring mechanism 70, which includes a stirring tube 71. A rotating shaft 63 is rotatably connected to the inner wall of the stirring tube 71, and the stirring tube 71 is rotatably connected to the transfer tank 30. The lower end of the stirring tube 71 is located in the upper cavity of the transfer tank 30. The stirring mechanism 70 also includes a stirring rod 72, which is rotatably connected to the inner wall of the rotating shaft 63. The lower end of the stirring rod 72 is located in the lower cavity of the transfer tank 30. Both the stirring tube 71 and the stirring rod 72 have blades at their lower ends. The stirring tube 71 is used to stir the coating in the upper cavity of the transfer tank 30, and the stirring rod 72 is used to stir the coating in the lower cavity of the transfer tank 30. The upper ends of both the stirring tube 71 and the stirring rod 72 protrude from the upper part of the transfer tank 30, which facilitates the installation of a drive structure.
[0033] Please see Figures 1-3 The stirring mechanism 70 also includes a gear ring 73 and a motor 74. The motor 74 is mounted on the transfer tank 30. A gear ring 73 is fixedly connected to the outer end of both the stirring tube 71 and the stirring rod 72. A gear 75 is provided on the motor 74 to mesh with the two gear rings 73. The motor 74 drives the gear 75 to rotate, which in turn drives the two gear rings 73 and their corresponding stirring tube 71 and stirring rod 72 to rotate, thereby achieving the stirring effect.
[0034] Please see Figures 1-3 The inlets of the fine-tuning solvent tank 40 and the raw material tank 10 are both located directly above the through-slot. The raw material tank 10 and the fine-tuning solvent can be added to the upper chamber of the transfer tank 30 and mixed into the lower chamber after stirring, or they can drip directly into the lower chamber when the through-slot is opened, which improves the flexibility of adjustment.
[0035] The working principle of this ink mixing system for maintaining the continuous stability of the hue of water-based coatings is as follows: multiple raw material tanks 10 inject raw materials into the mixing tank 20 for stirring to form coating. The coating is then pumped into the lower chamber of the transfer tank 30, and then injected into the ink tank 50 through the replenishment pipe 32 for coloring. The ink tank 50 is equipped with a return pump, which pumps a portion of the coating back to the upper chamber of the transfer tank 30 at regular intervals. After hue testing here, raw materials of the corresponding color number are added and stirred according to the test results. After passing the test, the cylinder 64 pushes the turntable 62 to rotate, aligning the channels. The coating in the upper chamber enters the lower chamber, mixes and stirs with the coating from the mixing tank 20, and is tested again. The hue is measured, and depending on the test results, fine-tuning solvent or raw material is added and stirred. After passing the test, it can be pumped into the ink tank 50. Then, the turntable 62 is closed, and the return pipe continues to pump the paint in the ink tank 50 into the upper chamber of the transfer tank 30. This cycle is repeated to ensure that the hue remains stable. In summary, the transfer tank 30 is divided into upper and lower chambers by the isolation mechanism 60. The paint returning from the ink tank 50 is first adjusted in the upper chamber, then mixed with the paint from the mixing tank 20, and adjusted again before being pumped into the ink tank 50. This ensures that the hue remains stable and also avoids the situation where the hue is adjusted entirely by the fine-tuning solvent, which could lead to an excessively high proportion of fine-tuning solvent.
[0036] It should be noted that each raw material tank 10 and the fine-tuning solvent tank 40 is equipped with a fluid metering valve at its outlet. Pumps are installed between the mixing tank 20 and the transfer tank 30, on the return pipe 31, and on the replenishment pipe 32 to ensure flow. The power supply and selection of these pumps are existing technologies and will not be described in detail here.
[0037] The above are merely embodiments of this application and are not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, improvements, or equivalent substitutions made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
Claims
1. An ink mixing system for maintaining the color phase of water-based paint stable, comprising a mixing unit, a transfer unit and an ink tank (50), the mixing unit comprising a raw material tank (10) and a mixing tank (20), the raw material tank (10) being in communication with the mixing tank (20), the transfer unit comprising a transfer tank (30), the mixing tank (20) being in communication with the transfer tank (30), the transfer tank (30) being in communication with a fine adjustment solvent tank (40) thereon, characterized in that, The transfer barrel (30) is provided with an isolation mechanism (60) to divide the transfer barrel (30) into upper and lower chambers. The upper chamber of the transfer barrel (30) is connected to the raw material barrel (10). The upper and lower chambers of the transfer barrel (30) are respectively provided with a return pipe (31) and a replenishment pipe (32) connected to the ink tank (50). The lower chamber of the transfer barrel (30) is connected to the mixing barrel (20).
2. The ink mixing system for maintaining the continuous stability of the hue of water-based coatings according to claim 1, characterized in that, The upper and lower cavities of the transfer barrel (30) are equipped with probes (33) of a spectrometer.
3. The ink mixing system for maintaining the continuous stability of the hue of water-based coatings according to claim 2, characterized in that, The isolation mechanism (60) includes a partition plate (61) and a turntable (62). Both the partition plate (61) and the turntable (62) are provided with fan-shaped through slots. The partition plate (61) is fixedly connected to the inner wall of the transfer barrel (30), and the turntable (62) is rotatably connected to the surface of the partition plate (61).
4. The ink mixing system for maintaining the continuous stability of the hue of water-based coatings according to claim 3, characterized in that, A rotating shaft (63) and a cylinder (64) are fixedly connected to the turntable (62). The rotating shaft (63) moves upward through the intermediate transfer barrel (30). A swing arm (65) is fixedly connected to the upper end of the rotating shaft (63). The two ends of the cylinder (64) are respectively hinged to the swing arm (65) and the intermediate transfer barrel (30).
5. The ink mixing system for maintaining the continuous stability of the hue of water-based coatings according to claim 4, characterized in that, The transfer barrel (30) is also provided with a stirring mechanism (70), which includes a stirring tube (71). The rotating shaft (63) is rotatably connected to the inner wall of the stirring tube (71), and the stirring tube (71) is rotatably connected to the transfer barrel (30). The lower end of the stirring tube (71) is located in the upper cavity of the transfer barrel (30).
6. The ink mixing system for maintaining the continuous stability of the hue of water-based coatings according to claim 5, characterized in that, The stirring mechanism (70) also includes a stirring rod (72), which is rotatably connected to the inner wall of the rotating shaft (63). The lower end of the stirring rod (72) is located in the lower cavity of the intermediate transfer tank (30). Both the stirring tube (71) and the lower end of the stirring rod (72) are provided with blades.
7. The ink mixing system for maintaining the continuous stability of the hue of water-based coatings according to claim 6, characterized in that, The stirring mechanism (70) also includes a gear ring (73) and a motor (74). The motor (74) is mounted on the transfer tank (30). The outer ends of the stirring tube (71) and the stirring rod (72) are both fixedly connected to a gear ring (73). The motor (74) is provided with a gear (75) that meshes with the two gear rings (73).
8. The ink mixing system for maintaining the continuous stability of the hue of water-based coatings according to claim 7, characterized in that, The inlet of the fine-tuning solvent tank (40) and the inlet of the raw material tank (10) are both located directly above the through channel.