An intelligent color mixing full-color printer
The intelligent color mixing full-color printer uses a motor-driven stirring blade to mix pigments and control their flowability, solving the problems of low color conversion efficiency and uneven color mixing in existing 3D printers, and achieving efficient and uniform multi-color printing results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING ZEZHICHEN DIGITAL TECH CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-07-24
AI Technical Summary
Existing 3D printers require nozzle replacement when changing colors, which is a cumbersome process, resulting in low multi-color printing efficiency and uneven color mixing with obvious transitions.
The intelligent color mixing full-color printer uses a motor to drive the stirring blades to rotate and mix the four CMYK pigments. It uses solenoid valves and guide blocks to control the flow of pigments, achieving independent supply and precise mixing of the four colors. Combined with heating wires to maintain the fluidity of the pigments, the nozzles perform printing.
It improves multi-color printing efficiency, ensures uniform pigment mixing and smooth color transitions, reduces the tedious process of nozzle replacement, and enhances printing accuracy and efficiency.
Smart Images

Figure CN224545352U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of 3D printer technology, specifically to a smart color mixing full-color printer. Background Technology
[0002] 3D printers can automatically, directly, quickly, and accurately transform design ideas into functional prototypes or directly manufacture parts, thus providing an efficient and low-cost means for prototyping and validating new design ideas. In other words, rapid prototyping technology utilizes 3D CAD data and a rapid prototyping machine to build up layers of material into a solid prototype.
[0003] Current 3D printers typically use a Cartesian coordinate system, with multiple motors driving the movement of the printhead. Multi-color printing requires a multi-nozzle 3D printer, where each nozzle corresponds to a specific color of printing material. Changing colors during printing necessitates switching nozzles of different colors, a cumbersome process that results in low multi-color printing efficiency, limited color variety, and poor surface finish. While advancements in 3D printing technology have led to the development of dual-color or multi-color 3D printers that don't require nozzle switching, these printers often suffer from uneven color mixing and noticeable color transitions during multi-color printing. Therefore, we propose an intelligent color-mixing full-color printer to address these issues. Utility Model Content
[0004] The purpose of this invention is to provide an intelligent color mixing full-color printer to solve the problems mentioned in the background art. When changing colors during use, existing 3D printers require changing the nozzles corresponding to different colors. The nozzle switching process is cumbersome, resulting in low multi-color printing efficiency. Furthermore, it is easy to encounter problems such as uneven mixing of multiple colors and obvious transitions between different colors.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a smart color mixing full-color printer, comprising a base plate, a color mixing tank mounted on the upper part of the base plate, a fourth drive motor mounted on the top of the color mixing tank, a stirring rod mounted on the output shaft of the fourth drive motor, two sets of stirring blades mounted on the outer wall of the stirring rod, a guide block mounted on the inner bottom of the color mixing tank, a nozzle mounted on the bottom of the color mixing tank, a solenoid valve mounted at the connection between the nozzle and the color mixing tank, four sets of pigment tanks mounted on the upper part of the color mixing tank, a fifth drive motor mounted on the top of the pigment tank, a rotating rod mounted on the output shaft of the fifth drive motor, a spiral plate mounted on the outer wall of the rotating rod, a feed pipe mounted on the bottom of the pigment tank, the other end of the feed pipe located inside the color mixing tank, and a flow valve mounted inside the feed pipe.
[0006] Preferably, the mixing tank has an internal cavity on its outer wall, and a heating wire is disposed inside the cavity.
[0007] Preferably, connecting rods are installed on the upper and lower parts of the outer wall of the stirring rod, and a scraper is installed on the other side of the connecting rod, with the other side of the scraper in contact with the inner wall of the mixing tank.
[0008] Preferably, columns are installed around the top of the base plate, and a first threaded rod is installed on the upper part between two columns on the same side. One end of the first threaded rod is connected to a first drive motor through the column, and a first nut seat is threaded to the outer wall of the first threaded rod.
[0009] Preferably, a second threaded rod is installed at the lower part between the two first nut seats, a second drive motor is installed on one side of the second threaded rod through the first nut seat, the outer wall of the second threaded rod is threaded to the second nut seat, and the second nut seat is fixedly connected to the color mixing tank.
[0010] Preferably, a first slide rod is installed at the lower part between the two first nut seats, and the second nut seat is slidably connected to the first slide rod.
[0011] Preferably, one end of the opposite face of the two columns on the same side is provided with a vertical groove, a third threaded rod is installed inside one of the vertical grooves, a third drive motor is installed on the top of the third threaded rod through the column, a third nut seat is threaded to the outer wall of the third threaded rod, a second slide rod is installed inside the other three sets of vertical grooves, a slider is slidably connected inside the second slide rod, a printing platform is installed on the upper part of the base plate, and the two ends of the printing platform are fixedly connected to the third nut seat and the slider.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] (1) This utility model drives the spiral plate to rotate through the fifth drive motor. The spiral plate can push the pigment in the pigment tank to move downwards, and the amount of pigment entering the mixing tank can be precisely controlled by the flow valve. The pigment tank stores CMYK four-color pigments respectively, which can realize the independent supply of CMYK four colors. This solves the problem that existing 3D printers have to change the nozzles corresponding to different colors when changing colors during use. The process of changing nozzles is cumbersome, resulting in very low multi-color printing efficiency.
[0014] (2) The fourth drive motor drives the stirring blades to rotate and force the four-color pigments to be sheared and mixed. The heating wire heats the mixing tank to maintain the optimal fluidity of the pigments and reduce the viscosity. The solenoid valve receives the signal and opens. The mixed pigments are gathered by the guide block and extruded from the nozzle onto the printing platform for printing. This solves the problem that existing 3D printers have to change the nozzles of different colors when changing colors during use. The process of changing the nozzles is cumbersome, resulting in low multi-color printing efficiency. Secondly, it is easy to have uneven mixing of multiple colors and obvious transitions between different colors. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a top view of the structure of this utility model;
[0017] Figure 3 This is a front cross-sectional view of the present invention.
[0018] Figure 4 This is a schematic diagram of the right-side cross-sectional structure of this utility model;
[0019] In the diagram: 1. Base plate; 2. Column; 3. First threaded rod; 4. First drive motor; 5. First nut seat; 6. Second threaded rod; 7. Second drive motor; 8. Second nut seat; 9. First slide rod; 10. Mixing tank; 11. Cavity; 12. Heating wire; 13. Fourth drive motor; 14. Stirring rod; 15. Stirring blade; 16. Connecting rod; 17. Scraper; 18. Guide block; 19. Solenoid valve; 20. Nozzle; 21. Pigment tank; 22. Fifth drive motor; 23. Rotating rod; 24. Spiral plate; 25. Feed pipe; 26. Flow valve; 27. Vertical groove; 28. Third threaded rod; 29. Third drive motor; 30. Third nut seat; 31. Second slide rod; 32. Slider; 33. Printing platform. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Please see Figure 1-4 This utility model provides an embodiment of an intelligent color mixing full-color printer, including a base plate 1, a color mixing tank 10 mounted on the upper part of the base plate 1, a fourth drive motor 13 mounted on the top of the color mixing tank 10, a stirring rod 14 mounted on the output shaft of the fourth drive motor 13, two sets of stirring blades 15 mounted on the outer wall of the stirring rod 14, a guide block 18 mounted on the inner bottom of the color mixing tank 10, a nozzle 20 mounted on the bottom of the color mixing tank 10, and a solenoid valve 19 mounted at the connection between the nozzle 20 and the color mixing tank 10. (See also...) Figure 3 The mixing tank 10 has an internal cavity 11 on its outer wall, and a heating wire 12 is installed inside the cavity 11. Four sets of pigment tanks 21 are installed on the upper part of the mixing tank 10. A fifth drive motor 22 is installed on the top of each pigment tank 21. A rotating rod 23 is installed on the output shaft of the fifth drive motor 22, and a spiral plate 24 is installed on the outer wall of the rotating rod 23. A feed pipe 25 is installed at the bottom of each pigment tank 21, with the other end of the feed pipe 25 located inside the mixing tank 10. A flow valve 26 is installed inside the feed pipe 25. In use, the fifth drive motor 22 drives the spiral plate 24 to rotate, which pushes the pigment in the pigment tank 21 downwards. The flow valve 26 precisely controls the amount of pigment entering the mixing tank 10. Each pigment tank 21 stores CMYK pigments, allowing for independent supply of the four colors. The fourth drive motor 13 is activated, driving the stirring rod 14 and stirring blades 15 to rotate at high speed. The stirring blades 15 forcefully shear and mix the four colors of pigment. Water is filled inside the cavity 11, and the heating wire 12 heats the water inside the cavity 11, thus maintaining a constant temperature for the mixing tank 10 to ensure optimal pigment flowability and reduce viscosity. The solenoid valve 19 opens upon receiving a signal, and the mixed pigment is collected by the guide block 18 and extruded from the nozzle 20 onto the printing platform 33 for printing. Please refer to [link to relevant documentation]. Figure 2 The base plate 1 has columns 2 installed around its top perimeter. A first threaded rod 3 is installed on the upper part between two columns 2 on the same side. A first drive motor 4 is installed at one end of the first threaded rod 3 via a column 2. A first nut seat 5 is threadedly connected to the outer wall of the first threaded rod 3. (See also...) Figure 2 A second threaded rod 6 is installed at the lower part between the two first nut seats 5. A second drive motor 7 is installed on one side of the second threaded rod 6 through the first nut seats 5. A second nut seat 8 is threadedly connected to the outer wall of the second threaded rod 6. The second nut seat 8 is fixedly connected to the color mixing tank 10. Please refer to [link / reference]. Figure 4On the same side, two columns 2 are provided with vertical grooves 27 at one end of their opposite faces. A third threaded rod 28 is installed inside one of the vertical grooves 27. A third drive motor 29 is installed on the top of the third threaded rod 28 through the column 2. A third nut seat 30 is threadedly connected to the outer wall of the third threaded rod 28. A second slide rod 31 is installed inside the other three sets of vertical grooves 27. A slider 32 is slidably connected inside the second slide rod 31. A printing platform 33 is installed on the upper part of the base plate 1. The two ends of the printing platform 33 are fixedly connected to the third nut seat 30 and the slider 32. The first drive motor 4 drives the first threaded rod 3 to rotate, causing the first nut seat 5 to move back and forth along the first threaded rod 3. The second drive motor 7 drives the second threaded rod 6 to rotate, causing the second nut seat 8 to move left and right along the second threaded rod 6. The first slide rod 9 provides a limiting function for the second nut seat 8 to prevent it from shifting during movement. The color mixing tank 10 is fixed on the second nut seat 8, which can realize the XY plane positioning of the nozzle 20, so that the material sprayed by the nozzle 20 solidifies according to the design shape. At the same time, as the nozzle 20 sprays in the X and Y directions, the third drive motor 29 drives the third threaded rod 28 to rotate, causing the third nut seat 30 to move up and down. Through the connection of the printing platform 33, the slider 32 can slide along the second slide rod 31, thereby adjusting the height of the printing platform 33 and ensuring its stability. This enables the vertical Z-direction movement of the product, realizing fused wire overlay printing.
[0022] Please see Figure 3 Connecting rods 16 are installed on the upper and lower parts of the outer wall of the stirring rod 14. A scraper 17 is installed on the other side of the connecting rod 16, and the other side of the scraper 17 is in contact with the inner wall of the mixing tank 10. The stirring rod 14 can be rotated by the fourth drive motor 13, and the scraper 17 can be moved to contact the inner wall of the mixing tank 10 by the connecting rod 16. This can prevent pigment from sticking to the wall and remove the attached pigment, reduce the frequency of cleaning, and ensure the accuracy of the mixing ratio.
[0023] Please see Figure 2 A first slide rod 9 is installed at the lower part between the two first nut seats 5, and the second nut seat 8 is slidably connected to the first slide rod 9. The first slide rod 9 can provide a limiting function for the second nut seat 8, which can prevent the second nut seat 8 from rotating when moving on the second threaded rod 6, ensuring the stability of the second nut seat 8, thereby improving the stability of the nozzle 20 and ensuring the printing accuracy of the device.
[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A smart color mixing full-color printer, comprising a base plate (1), characterized in that: A mixing tank (10) is installed on the upper part of the base plate (1). A fourth drive motor (13) is installed on the top of the mixing tank (10). A stirring rod (14) is installed on the output shaft of the fourth drive motor (13). Two sets of stirring blades (15) are installed on the outer wall of the stirring rod (14). A guide block (18) is installed at the bottom of the mixing tank (10). A nozzle (20) is installed at the bottom of the mixing tank (10). A solenoid valve (19) is installed at the connection between the nozzle (20) and the mixing tank (10). The mixing tank (10) has four sets of pigment tanks (21) installed on its upper part. A fifth drive motor (22) is installed on the top of the pigment tank (21). A rotating rod (23) is installed on the output shaft of the fifth drive motor (22). A spiral plate (24) is installed on the outer wall of the rotating rod (23). A feed pipe (25) is installed at the bottom of the pigment tank (21). The other end of the feed pipe (25) is located inside the mixing tank (10). A flow valve (26) is installed inside the feed pipe (25).
2. The intelligent color mixing full-color printer according to claim 1, characterized in that: The mixing tank (10) has a cavity (11) inside its outer wall, and a heating wire (12) is installed inside the cavity (11).
3. A full-color printer with intelligent color mixing according to claim 1, characterized in that: Connecting rods (16) are installed on the upper and lower parts of the outer wall of the stirring rod (14), and a scraper (17) is installed on the other side of the connecting rod (16). The other side of the scraper (17) is in contact with the inner wall of the mixing tank (10).
4. A full-color printer with intelligent color mixing according to claim 1, characterized in that: The base plate (1) is surrounded by columns (2) on the top. A first threaded rod (3) is installed on the upper part between two columns (2) on the same side. A first drive motor (4) is installed on one end of the first threaded rod (3) through the column (2). A first nut seat (5) is threadedly connected to the outer wall of the first threaded rod (3).
5. A full-color printer with intelligent color mixing according to claim 4, characterized in that: A second threaded rod (6) is installed at the lower part between the two first nut seats (5). A second drive motor (7) is installed on one side of the second threaded rod (6) through the first nut seat (5). A second nut seat (8) is threadedly connected to the outer wall of the second threaded rod (6). The second nut seat (8) is fixedly connected to the color mixing tank (10).
6. A full-color printer with intelligent color mixing according to claim 5, characterized in that: A first slide rod (9) is installed at the lower part between the two first nut seats (5), and the second nut seat (8) is slidably connected to the first slide rod (9).
7. A full-color printer with intelligent color mixing according to claim 4, characterized in that: Two columns (2) on the same side are provided with vertical grooves (27) at one end of their opposite faces. A third threaded rod (28) is installed inside one of the vertical grooves (27). A third drive motor (29) is installed on the top of the third threaded rod (28) through the column (2). A third nut seat (30) is threadedly connected to the outer wall of the third threaded rod (28). A second slide rod (31) is installed inside the other three sets of vertical grooves (27). A slider (32) is slidably connected inside the second slide rod (31). A printing platform (33) is installed on the upper part of the base plate (1). The two ends of the printing platform (33) are fixedly connected to the third nut seat (30) and the slider (32).