A color mixing device and color mixing method for consumables for 3D printing

Abstract

The present invention relates to the technical field of production of consumables for 3D printing, and discloses a color mixing device for consumables for 3D printing and a color mixing method thereof, comprising a barrel, a driving assembly installed at the top of the barrel, a slope block installed on the outside of the driving assembly, a support rod fixedly connected to the inner wall of the top of the barrel, a side column fixedly connected to the outside of the support rod, a pressure column fixedly connected to the bottom end of the support rod, two sliding columns installed at the bottom end of the driving assembly, a shaft column slidably connected to the outside of the two sliding columns, a rotating rod rotatably connected to the top end of the inner wall of the shaft column, a reset assembly installed at the bottom end of the rotating rod, and a transmission assembly installed on the rear side of the rotating rod. In the present invention, the slope block cooperates with the pressure column to drive the stirring plate to rotate back and forth, breaking the fixed flow path of unidirectional stirring, eliminating the stirring blind spot, promoting the full mixing of the masterbatch and the base material, and significantly improving the color matching uniformity and color consistency of the consumables.

Description

Technical Field

[0001] The present invention relates to the technical field of production of 3D printing consumables, and in particular to a color mixing device and a color mixing method for 3D printing consumables. Background Art

[0002] The production technology for 3D printing consumables primarily revolves around polymer material processing. First, the appropriate raw materials are selected based on the consumable type (e.g., PLA, ABS), then mixed with masterbatch and additives in appropriate proportions. The material is then melted at high temperature in an extruder to plasticize it, then extruded through a die. The resulting material then undergoes cooling, drawing, and winding to form continuous filaments or pellets. Throughout this process, temperature control, extrusion speed, and die precision directly impact the consumable's diameter uniformity, strength, and other properties.

[0003] The color mixing device for 3D printing consumables is a critical pre-production device. Its motor-driven stirring mechanism thoroughly mixes the thermoplastic raw material and masterbatch within the barrel. This device provides fully mixed raw materials for subsequent extrusion molding and is crucial for ensuring the color quality of 3D printing consumables.

[0004] However, in the existing technology, some 3D printing consumables color mixing devices use a traditional unidirectional rotary stirring structure, and the stirring plate can only perform circular motion in a single direction. This makes it easy for the material to form a fixed flow path during the stirring process, resulting in stirring blind spots in the corners or center areas of the barrel, making it difficult to achieve uniform mixing of the masterbatch and the substrate, thereby affecting the color consistency of the 3D printed products.

[0005] Therefore, in order to solve the above problems, a 3D printing consumable material color mixing device and a color mixing method thereof are proposed. Summary of the Invention

[0006] In order to make up for the above shortcomings, the present invention provides a 3D printing consumables color mixing device and a color mixing method thereof, aiming to improve the problem that some 3D printing consumables color mixing devices in the prior art use unidirectional rotation stirring, which easily forms a fixed flow path, produces a stirring blind area, causes uneven mixing of the masterbatch, and affects the color consistency of the finished product.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] The top end of the driving member is rotated by the guide rail, and the other end of the short rod is fixedly connected to the rotating shaft, and the other end of the short rod is fixedly connected to the rotating shaft, and the stirring rod is fixedly connected to the stirring plate, and the bottom end of the driving member is fixedly connected to the stirring plate.

[0009] As a further description of the above technical solution:

[0010] The driving assembly includes a support plate, the bottom end of the support plate is fixedly connected to the top end of the barrel body, the inner wall of the support plate is fixedly connected to the motor, the driving end of the motor is fixedly connected to the rotating shaft, the inner wall of the rotating shaft is slidably connected to the slider, a spring is provided inside the rotating shaft, the bottom end of the slider is fixedly connected to the bottom column, the bottom end of the bottom column is fixedly connected to the chassis, the inner side of the slope block is fixedly connected to the outside of the chassis, and the top of the sliding column is fixedly connected to the bottom end of the chassis;

[0011] As a further description of the above technical solution:

[0012] The left side of the top end of the barrel body is fixedly connected to the feeding cylinder, and the right side of the bottom end of the barrel body is fixedly connected to the discharging cylinder;

[0013] As a further description of the above technical solution:

[0014] One end of the spring 1 is fixedly connected to one side of the inner wall of the rotating shaft, and the other end of the spring 1 is fixedly connected to the top end of the slider;

[0015] As a further description of the above technical solution:

[0016] The reset assembly includes a limiting ring, one end of which is fixedly connected to the bottom end of the rotating rod, the outer portion of which is slidably connected to the top inner wall of the shaft column, the bottom end of the rotating rod is fixedly connected to a second spring, and the other end of the second spring is fixedly connected to the top inner wall of the shaft column;

[0017] As a further description of the above technical solution:

[0018] The transmission assembly includes a pull plate, the outside of the pull plate is rotatably connected to the top inner wall of the shaft column, the front end of the pull plate is fixedly connected to the rear side of the rotating rod, the other end of the pull rope is fixedly connected to the pull column, the outside of the pull column is fixedly connected to a plurality of slides, and they are symmetrical in pairs, the bottom end of the slide is fixedly connected to the slide rod, the top end of the long rod is rotatably connected to the bottom end of the slide rod, one end of the spring three is fixedly connected to the bottom end of the pull column, and the other end of the spring three is fixedly connected to the bottom end of the inner wall of the shaft column;

[0019] As a further description of the above technical solution:

[0020] The outer side of the stirring plate contacts the inner wall of the barrel, and the discharge barrel is provided with a valve for controlling the outflow of materials;

[0021] A color mixing method for 3D printing consumables, applicable to the above-mentioned color mixing device for 3D printing consumables, the color mixing method is as follows:

[0022] S1. Adding materials: First, put the thermoplastic plastic balls and masterbatch with a good ratio into the barrel from the feeding barrel. Then start the motor to drive the rotating shaft to rotate, which further drives the slider, bottom column and chassis to rotate. The chassis further drives the sliding column and shaft column to rotate. Finally, the shaft column drives the stirring plate to rotate, and then the 3D printing consumables can be stirred.

[0023] S2. Stirring evenly: When the stirring plate starts to rotate to stir the filaments, the support rod here is fixed to the top of the inner wall of the barrel. Therefore, after the bottom plate and the slope block rotate to a certain angle, they are squeezed by the pressure column, thereby driving the sliding column to squeeze the rotating rod. The rotating rod will be squeezed and rotated by the power transmitted by the motor, thereby driving the pull plate to retract the pull rope. At this time, the pull column will be driven by the pull rope to drive the slide plate and the slide rod to move up and down. Because the short rod is not at the center of the rotating column, when the slide rod moves, it can drive the short rod to rotate at a certain angle, thereby driving the rotating column and the stirring plate to rotate. The spring three will continue to reset the pull column, so that the stirring plate can be adjusted to reciprocate at a certain angle, effectively dispersing the filament agglomerates and making the stirring more uniform.

[0024] S3. Material output: After the consumables are mixed, the motor is controlled to stop output. At this time, the valve on the discharge barrel is controlled to output the consumables that have been mixed.

[0025] The present invention has the following beneficial effects:

[0026] 1. In the present invention, the combination of the slope block and the pressure column drives the stirring plate to rotate back and forth for a certain degree, breaking the fixed flow path of the traditional unidirectional rotation, so that the material forms a cross flow path in the barrel, effectively eliminating the stirring blind spots in the corners and the center area, ensuring full contact between the masterbatch and the substrate particles, avoiding color deviation of the 3D printed product caused by uneven mixing, and significantly improving the uniformity and color consistency of the consumables color matching.

[0027] 2. In the present invention, the transmission assembly consisting of the rotating rod, the pull plate and the spring can automatically adjust the swing angle of the stirring plate according to the motor speed. When the material is easy to agglomerate, increasing the motor speed will enable the stirring plate to obtain a larger swing amplitude, thereby enhancing the shearing and dispersion ability of the agglomerated material. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the barrel of the present invention;

[0030] Figure 3 It is a structural schematic diagram of the shaft column of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the chassis of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the rotating shaft of the present invention;

[0033] Figure 6 It is a structural schematic diagram of the pressure column of the present invention;

[0034] Figure 7 It is a structural schematic diagram of the pull column of the present invention;

[0035] Figure 8 This is a moving diagram of the operation of the stirring plate of the present invention;

[0036] Figure 9 Schematic diagram of the structure of spring three of the present invention;

[0037] Figure 10 This is an overall flow chart of a color mixing method in a color mixing device for 3D printing consumables of the present invention.

[0038] In the figure: 1. barrel; a. drive assembly; 2. support plate; 3. motor; 4. feed barrel; 5. discharge barrel; 6. rotating shaft; 7. slider; 8. spring one; 9. bottom column; 10. chassis; 11. slope block; 12. support rod; 13. side column; 14. pressure column; 15. sliding column; 16. shaft column; 17. rotating rod; b. reset assembly; 18. limiting ring; 19. spring two; c. transmission assembly; 20. pull plate; 21. pull rope; 22. pull column; 23. slide plate; 24. slide rod; 25. long rod; 26. short rod; 27. rotating column; 28. stirring plate; 29. ​​spring three. DETAILED DESCRIPTION

[0039] The following describes in detail a 3D printing consumables color mixing device and color mixing method provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0040] Reference Figures 1 to 8 , the present invention provides an embodiment: a 3D printing consumable material color mixing device, including a barrel body 1, which serves as a storage space for material mixing and provides a place for the mixing process. A feeding barrel 4 is fixedly connected to the left side of the top end of the barrel body 1, which is used to put materials such as thermoplastic plastic balls and masterbatches with a good ratio into the barrel body 1 to realize the introduction of materials. A discharging barrel 5 is fixedly connected to the right side of the bottom end of the barrel body 1. The discharging barrel 5 is provided with a valve to control the outflow of materials. After the color mixing is completed, the valve is opened, and the evenly mixed consumable material flows out under the action of gravity for material output. A driving component a is installed on the top of the barrel body 1. The driving component a includes a support plate 2. The bottom end of the support plate 2 is fixedly connected to the top of the barrel body 1. The inner wall of the support plate 2 is fixedly connected to a motor 3 to provide a power source for the entire mixing process.

[0041] The support plate 2 can provide a stable support structure for driving components such as the motor 3. The driving end of the motor 3 is fixedly connected to the rotating shaft 6. When the power is turned on, the rotating shaft 6 is driven to rotate. The inner wall of the rotating shaft 6 is slidably connected to a slider 7. The protrusions on both sides can make the slider 7 rotate with the rotation of the rotating shaft 6. A spring 8 is provided inside the rotating shaft 6. One end of the spring 8 is fixedly connected to one side of the inner wall of the rotating shaft 6, and the other end of the spring 8 is fixedly connected to the top of the slider 7. The spring 8 here is used for subsequent reset operations. The bottom end of the slider 7 is fixedly connected to a bottom column 9. The bottom column 9 is slidably connected to the inner wall of the rotating shaft 6. The bottom end of the column 9 is fixedly connected to the chassis 10. When the slider 7 rotates, it can drive the bottom column 9 and the chassis 10 here to rotate synchronously. A slope block 11 is installed on the outside of the driving component a. The inner side of the slope block 11 is fixedly connected to the outside of the chassis 10. The slope block 11 will rotate with the chassis 10. The top inner wall of the barrel body 1 is fixedly connected to the support rod 12, and the outside of the support rod 12 is fixedly connected to the side column 13. The bottom end of the support rod 12 is fixedly connected to the pressure column 14. The support rod 12 and the side column 13 can provide stable support for the pressure column 14 to ensure that the position of the pressure column 14 is stable and cooperate with the slope block 11 to realize the function.

[0042] Two sliding columns 15 are installed at the bottom end of the driving component a. The top of the sliding column 15 is fixedly connected to the bottom end of the chassis 10. When the chassis 10 rotates one circle, the slope block 11 on the outside will be squeezed by the pressure column 14, thereby driving the chassis 10 and the sliding column 15 to descend. The outside of the two sliding columns 15 is slidably connected to the shaft column 16. The sliding column 15 here can also ensure that the force driven by the motor 3 is transmitted to the shaft column 16, so that it drives the shaft column 16 to rotate. The top of the inner wall of the shaft column 16 is rotatably connected to the rotating rod 17. When the sliding column 15 descends, the sliding column 15 on the left side The rotating rod 17 will be squeezed to rotate around the connection point between it and the inner wall of the shaft column 16. A reset component b is installed at the bottom end of the rotating rod 17. The reset component b includes a limit ring 18. One end of the limit ring 18 is fixedly connected to the bottom end of the rotating rod 17. The outside of the limit ring 18 is slidably connected to the top inner wall of the shaft column 16. The bottom end of the rotating rod 17 is fixedly connected to a spring 2 19. The other end of the spring 2 19 is fixedly connected to the top inner wall of the shaft column 16. When the rotating rod 17 rotates, the spring 2 19 will be squeezed to shrink, preparing for subsequent reset.

[0043] A transmission component c is installed on the rear side of the rotating rod 17, and rotates on the inner wall of the shaft column 16. The transmission component c includes a pull plate 20. The front end of the pull plate 20 is fixedly connected to the rear side of the rotating rod 17 and rotates on the inner wall of the shaft column 16. When the rotating rod 17 rotates, the pull plate 20 here can be driven to rotate. One side of the outside of the pull plate 20 is fixedly connected to a pull rope 21 that slides on the inner wall of the shaft column 16. The other end of the pull rope 21 is fixedly connected to a pull column 22. When the pull plate 20 rotates, it further drives the pull rope 21 to rotate, causing it to move upward, and further drives the pull column 22 to move upward. A plurality of slides 23 are fixedly connected to the outside of the pull column 22, and two of them are connected. Symmetrically, the bottom end of the slide plate 23 is fixedly connected to the slide rod 24. When the pull column 22 moves, the slide plate 23 and the slide rod 24 can be driven to move synchronously. A long rod 25 is installed at the bottom end of the transmission component c. The top end of the long rod 25 is rotatably connected to the bottom end of the slide rod 24. The other end of the long rod 25 is rotatably connected to the short rod 26. The other end of the short rod 26 is fixedly connected to the rotating column 27. The rotating column 27 is rotatably connected to the shaft column 16. Because the short rod 26 here is eccentrically connected to the rotating column 27, when the slide rod 24 moves up, it can drive the long rod 25 here to move up and rotate, thereby driving the short rod 26 and the rotating column 27 to rotate at a certain angle.

[0044] A stirring plate 28 is fixedly connected to the outer side of the rotating column 27, and the outer side of the stirring plate 28 is close to the inner wall of the barrel body 1. When the motor 3 drives the rotating column 27 to rotate circumferentially, the rotating column 27 can drive the stirring plate 28 to stir the thermoplastic plastic balls and masterbatch inside the barrel body 1. A spring three 29 is provided at the bottom end of the transmission component c. One end of the spring three 29 is fixedly connected to the bottom end of the pull column 22, and the other end of the spring three 29 is fixedly connected to the bottom end of the inner wall of the shaft column 16. The spring three 29 here is used to reset the above structure.

[0045] The stirring plate 28 rotates back and forth under the impetus of the various components mentioned above. This design breaks the traditional unidirectional rotation fixed flow path, allowing the material to form a cross flow path in the barrel 1, effectively eliminating the stirring blind spots in the corners and center areas, ensuring full contact between the masterbatch and the substrate particles, avoiding color deviation of the 3D printed product caused by uneven mixing, and significantly improving the uniformity and color consistency of the consumables color matching.

[0046] Reference Figure 9 A color mixing method for 3D printing consumables is applicable to the above-mentioned color mixing device for 3D printing consumables. The color mixing method is as follows:

[0047] S1. Adding materials: First, the thermoplastic plastic balls and masterbatch with a good ratio are added into the barrel 1 from the feeding barrel 4. Then, the motor 3 is started to drive the rotating shaft 6 to rotate, which further drives the slider 7, the bottom column 9 and the bottom plate 10 to rotate. When the bottom plate 10 rotates, it further drives the sliding column 15 and the shaft column 16 to rotate. Finally, the shaft column 16 drives the stirring plate 28 to rotate, and the 3D printing consumables can be stirred.

[0048] S2. Stirring evenly: When the stirring plate 28 starts to rotate to stir the consumables, the support rod 12 here is fixed to the top of the inner wall of the barrel body 1. Therefore, after the bottom plate 10 and the slope block 11 rotate to a certain angle, they are squeezed by the pressure column 14, thereby driving the sliding column 15 to squeeze the rotating rod 17. The rotating rod 17 will be squeezed and rotated by the power transmitted by the motor 3, thereby driving the pull plate 20 to retract the pull rope 21. At this time, the pull column 22 will be driven by the pull rope 21 to drive the slide plate 23 and the sliding rod 24 to move up and down. Because the short rod 26 is not at the center position of the rotating column 27, when the sliding rod 24 moves, it can drive the short rod 26 to rotate at a certain angle, thereby driving the rotating column 27 and the stirring plate 28 to rotate, and the spring three 29 will continue to reset the pull column 22, so that the stirring plate 28 can be adjusted to reciprocate at a certain angle, effectively dispersing the consumable agglomerates and making the stirring more uniform.

[0049] S3, material output: After the consumables are mixed, the motor 3 is controlled to stop outputting, and the valve on the discharge barrel 5 is controlled to output the consumables after mixing.

[0050] Working Principle: Before the device is activated, slider 7 is positioned at the top of the inner wall of shaft 6 under the pulling force of spring 1 8. Rotating rod 17 is slidably connected to the inner wall of shaft column 16 via retaining ring 18 and is lifted by spring 2 19. Pull column 22 is positioned at the upper end of shaft column 16 under the normal force of spring 3 29. Pull rope 21 is tightly wrapped around the outside of pull plate 20, and stirring plate 28 is stationary. At this point, the operator feeds the properly proportioned thermoplastic pellets and masterbatch into feed hopper 4 on the top left side of barrel 1. The materials fall into barrel 1 by gravity.

[0051] When motor 3 is powered on and started, its driving end rotates shaft 6. Slider 7 on the inner wall of shaft 6 rotates synchronously with shaft 6 due to the constraints of spring 1 and the protrusions on both sides. Slider 7 transmits the rotational force to slide post 15 through bottom post 9 and chassis 10. Slide post 15 rotates shaft post 16, which in turn drives rotating post 27 and stirring plate 28 connected to shaft post 16 to begin circular motion, providing initial stirring and mixing of the materials in barrel 1.

[0052] As the chassis 10 continues to rotate, the ramp block 11 fixed to its outside gradually approaches the support rod 12 fixed to the inner wall of the top of the barrel 1. After the ramp block 11 rotates one circle, it contacts and squeezes the pressure column 14 at the bottom end of the support rod 12, forcing the chassis 10 and the sliding column 15 to slide downward along the inner wall of the shaft column 16. The force triggered by the rotation of the motor 3 causes the sliding column 15 to move downward and push the rotating rod 17 to rotate. The maximum rotation angle here is 90 degrees. The sliding of the limit ring 18 on the inner wall of the shaft column 16 acts as a guide and limiter. (It should be noted that the movement trajectory of the pull rope 21 and the limit ring 18 are staggered here. It can be more clearly expressed as: the movement trajectory of the pull rope 21 is in front, and the sliding trajectory of the limit ring 18 is in the back.) Spring 2 19 is compressed to store energy. The rotation of the rotating rod 17 drives the pull plate 20 to rotate. The pull rope 21 wrapped around the outside of the pull plate 20 is further tightened and shrinks along the rotation trajectory of the pull plate 20, thereby pulling the pull column 22 upward. The pulling column 22 drives the symmetrically arranged slide plate 23 and slide rod 24 to move synchronously. The slide rod 24 pulls the long rod 25. Since the short rod 26 is eccentrically connected to the rotating column 27, the pulling force of the long rod 25 causes the rotating column 27 to produce axial deflection, thereby driving the stirring plate 28 to rotate.

[0053] When the ramp block 11 rotates past the pressure column 14, spring 2 19 releases its elastic potential energy, pushing the rotating rod 17 to reset, and the pull plate 20 rotates in the opposite direction to release the pull rope 21. At the same time, spring 3 29 pulls the pull column 22 to reset, causing the stirring plate 28 to return to its original angle. The rotation angle of the stirring plate 28 can be adjusted by the speed of the motor 3. When the motor speed is low, the rotation angle of the stirring plate 28 is determined by the displacement distance of the pressure column 14 squeezing the ramp block 11. When the material to be processed is easy to agglomerate and difficult to disperse, the speed of the motor 3 can be increased to provide greater kinetic energy, so that the ramp block 11 moves a greater distance after colliding with the pressure column 14, making the stirring plate 28 rotate at a larger angle, helping to further shear and disperse the material. When the pull column 22 rises, the spring 3 29 at its bottom end is stressed and resets after moving to the top to offset the force transmitted by the motor 3, thereby driving the stirring plate 28 to adjust the angle back and forth. As the chassis 10 continues to rotate, the slope block 11 periodically contacts the pressure column 14, realizing the periodic reciprocating rotation of the stirring plate 28, which cooperates with the continuous circular motion to form a complex material flow path, effectively breaking up material agglomerates and achieving uniform mixing of particles of different colors.

[0054] After the color mixing is completed, the operator turns off the motor 3. At this time, the valve of the discharge barrel 5 on the right side of the bottom end of the barrel 1 is opened. Under the action of gravity, the evenly mixed consumables flow out through the discharge barrel 5. The staff can collect it or connect it to the extrusion machine for subsequent processing steps such as extrusion molding.

[0055] The present invention encompasses any substitutions, modifications, equivalent methods, and solutions that fall within the spirit and scope of the present invention. In order to provide the public with a thorough understanding of the present invention, specific details are described in detail in the preferred embodiments of the present invention above, but those skilled in the art can fully understand the present invention without these detailed descriptions.

[0056] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A color mixing device for 3D printing consumables, comprising a barrel (1), characterized in that: The top of the barrel body (1) is provided with a driving assembly, the outside of the driving assembly is provided with a slope block (11), the inner wall of the top of the barrel body (1) is fixedly connected with a support rod (12), the outside of the support rod (12) is fixedly connected with a side column (13), the bottom end of the support rod (12) is fixedly connected with a pressure column (14), the bottom end of the driving assembly is provided with two sliding columns (15), the outside of the two sliding columns (15) is slidably connected with a shaft column (16), and the top end of the inner wall of the shaft column (16) is rotatably connected to the top of the inner wall of the shaft column (16). A rotating rod (17) is connected, a reset assembly is installed at the bottom end of the rotating rod (17), a transmission assembly is installed on the rear side of the rotating rod (17), and rotates on the inner wall of the shaft column (16), a long rod (25) is installed at the bottom end of the transmission assembly, the other end of the long rod (25) is rotatably connected to a short rod (26), the other end of the short rod (26) is fixedly connected to a rotating column (27), the outer side of the rotating column (27) is fixedly connected to a stirring plate (28), and a spring three (29) is provided at the bottom end of the transmission assembly; The transmission assembly includes a pull plate (20), the front end of the pull plate (20) is fixedly connected to the rear side of the rotating rod (17), the outer side of the pull plate (20) is fixedly connected to a pull rope (21) sliding on the inner wall of the shaft column (16), the other end of the pull rope (21) is fixedly connected to the pull column (22), the outside of the pull column (22) is fixedly connected to a plurality of slides (23), and the two are symmetrical, the bottom end of the slide (23) is fixedly connected to the slide rod (24), the top end of the long rod (25) is rotatably connected to the bottom end of the slide rod (24), one end of the spring three (29) is fixedly connected to the bottom end of the pull column (22), and the other end of the spring three (29) is fixedly connected to the bottom end of the inner wall of the shaft column (16).

2. A 3D printing consumables color mixing device according to claim 1, characterized in that: The driving assembly comprises a support plate (2), the bottom end of the support plate (2) is fixedly connected to the top end of the barrel body (1), the inner wall of the support plate (2) is fixedly connected to a motor (3), the driving end of the motor (3) is fixedly connected to a rotating shaft (6), the inner wall of the rotating shaft (6) is slidably connected to a slider (7), a spring (8) is provided inside the rotating shaft (6), the bottom end of the slider (7) is fixedly connected to a bottom column (9), the bottom end of the bottom column (9) is fixedly connected to a chassis (10), the inner side of the slope block (11) is fixedly connected to the outside of the chassis (10), and the top end of the sliding column (15) is fixedly connected to the bottom end of the chassis (10).

3. The 3D printing consumables color mixing device according to claim 2, characterized in that: The left side of the top end of the barrel body (1) is fixedly connected to a feeding cylinder (4), and the right side of the bottom end of the barrel body (1) is fixedly connected to a discharging cylinder (5).

4. A 3D printing consumables color mixing device according to claim 3, characterized in that: One end of the spring 1 (8) is fixedly connected to one side of the inner wall of the rotating shaft (6), and the other end of the spring 1 (8) is fixedly connected to the top end of the slider (7).

5. The 3D printing consumables color mixing device according to claim 4, characterized in that: The reset assembly includes a limit ring (18), one end of the limit ring (18) is fixedly connected to the bottom end of the rotating rod (17), the outside of the limit ring (18) is slidably connected to the top inner wall of the shaft column (16), the bottom end of the rotating rod (17) is fixedly connected to a spring 2 (19), and the other end of the spring 2 (19) is fixedly connected to the top inner wall of the shaft column (16).

6. The 3D printing consumables color mixing device according to claim 5, characterized in that: The outer side of the stirring plate (28) contacts the inner wall of the barrel (1), and the discharge barrel (5) is provided with a valve for controlling the outflow of materials.

7. A method for mixing colors of consumable materials for 3D printing, wherein the method employs the color mixing device for 3D printing consumable materials according to claim 6 for color mixing, characterized in that: The color mixing method is as follows: S1. Inputting materials: First, thermoplastic plastic balls and masterbatches with a good ratio are inputted from the feeding barrel (4) into the interior of the barrel body (1), and then the motor (3) is started to drive the rotating shaft (6) to rotate, and further drive the slider (7), the bottom column (9) and the chassis (10) to rotate, and the chassis (10) further drives the sliding column (15) and the shaft column (16) to rotate when rotating, and finally the shaft column (16) drives the stirring plate (28) to rotate, and the 3D printing consumables can be stirred; S2. Stirring evenly: When the stirring plate (28) starts to rotate to stir the consumables, the support rod (12) here is fixed to the top of the inner wall of the barrel (1). Therefore, after the bottom plate (10) and the slope block (11) rotate to a certain angle, it is squeezed by the pressure column (14), thereby driving the sliding column (15) to squeeze the rotating rod (17). At this time, the rotating rod (17) is squeezed and rotated by the power transmitted by the motor (3), thereby driving the pull plate (20) to retract the pull rope (21). At this time, the pull column (22) is pulled by the rope. (21) drives the slide plate (23) and the slide rod (24) to move up and down, and because the short rod (26) is not at the center of the rotating column (27), when the slide rod (24) moves, it can drive the short rod (26) to rotate at a certain angle, thereby driving the rotating column (27) and the stirring plate (28) to rotate, and the spring three (29) will continue to reset the pull column (22), so that the stirring plate (28) can be adjusted to reciprocate at a certain angle, effectively dispersing the consumables agglomerates and making the stirring more uniform; S3, material output: After the consumables are mixed, the motor (3) is controlled to stop outputting, and the valve on the discharge barrel (5) is controlled to output the consumables after mixing.

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