Consumable color mixing device for 3D printing and color mixing method of consumable color mixing device

Abstract

The invention relates to the technical field of production of consumable items for 3D printing, and discloses a consumable item color mixing device for 3D printing and a color mixing method thereof.The consumable item color mixing device comprises a barrel body, a driving assembly is installed at the top end of the barrel body, a slope block is installed outside the driving assembly, and a supporting rod is fixedly connected to the inner wall of the top end of the barrel body; a side column is fixedly connected to the outer portion of the supporting rod, a pressing column is fixedly connected to the bottom end of the supporting rod, two sliding columns are installed at the bottom end of the driving assembly, a shaft column is slidably connected to the outer portions of the two sliding columns, a rotating rod is rotatably connected to the top end of the inner wall of the shaft column, and a reset assembly is installed at the bottom end of the rotating rod. And a transmission assembly is mounted on the rear side of the rotating rod. According to the stirring device, the slope block is matched with the pressing column, the stirring plate is driven to rotate in a reciprocating mode, a one-way stirring fixed flow path is broken, a stirring blind area is eliminated, color master batches and base materials are promoted to be fully mixed, and the color matching uniformity and color consistency of consumables are remarkably improved.

Description

Technical Field

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

[0002] The production technology of consumables for 3D printing mainly focuses on the processing of polymer materials. First, corresponding raw materials need to be selected according to the type of consumables (such as PLA, ABS), and they are mixed with masterbatch, additives, etc. in proportion; then, through high-temperature melting by an extruder, the materials are plasticized and extruded through a mold, and then made into continuous filaments or granular consumables through processes such as cooling, traction, and winding. In this process, temperature control, extrusion speed, and mold accuracy directly affect the performance of the consumables, such as diameter uniformity and strength.

[0003] The color mixing device for 3D printing consumables is a key pre-device in the production process. It drives a stirring structure through a motor to fully mix the thermoplastic plastic raw materials and the masterbatch in the barrel body. This device provides well-mixed raw materials for subsequent extrusion molding and is an important basis for ensuring the color quality of 3D printing consumables.

[0004] However, in the prior art, some color mixing devices for 3D printing consumables adopt 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 materials to form a fixed flow path during the stirring process, resulting in stirring blind spots in the corners or the central area of the barrel, making it difficult to achieve uniform mixing of the masterbatch and the base material, and thus affecting the color consistency of 3D printing finished products.

[0005] Therefore, in view of the above problems, a color mixing device for 3D printing consumables and a color mixing method thereof are proposed. Summary of the Invention

[0006] In order to make up for the above deficiencies, the present invention provides a color mixing device for 3D printing consumables and a color mixing method thereof, aiming to improve the problem that some color mixing devices for 3D printing consumables in the prior art adopt unidirectional rotary stirring, which easily forms a fixed flow path, generates stirring blind spots, 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: A color mixing device for 3D printing consumables, including a barrel body, a driving component is installed at the top end of the barrel body, a slope block is installed outside the driving component, a support rod is fixedly connected to the inner wall of the top end of the barrel body, a side column is fixedly connected to the outside of the support rod, a pressing column is fixedly connected to the bottom end of the support rod, two sliding columns are installed at the bottom end of the driving component, a shaft column is slidably connected to the outside of the two sliding columns, a rotating rod is rotatably connected to the inner wall top end of the shaft column, a reset component is installed at the bottom end of the rotating rod, a transmission component is installed at the rear side of the rotating rod and rotates inside the shaft column, a long rod is installed at the bottom end of the transmission component, the other end of the long rod is rotatably connected to a short rod, the other end of the short rod is fixedly connected to a rotating column, a stirring plate is fixedly connected to the outside of the rotating column, and a spring three is arranged at the bottom end of the transmission component; As a further description of the above technical solution: The driving component includes a support plate, the bottom end of the support plate is fixedly connected to the top end of the barrel body, a motor is fixedly connected to the inner wall of the support plate, a rotating shaft is fixedly connected to the driving end of the motor, a slider is slidably connected to the inner wall of the rotating shaft, a spring one is arranged inside the rotating shaft, a bottom column is fixedly connected to the bottom end of the slider, a chassis is fixedly connected to the bottom end of the bottom column, the inner side of the slope block is fixedly connected to the outside of the chassis, and the top end of the sliding column is fixedly connected to the bottom end of the chassis; As a further description of the above technical solution: A feeding cylinder is fixedly connected to the left side of the top end of the barrel body, and a discharging cylinder is fixedly connected to the right side of the bottom end of the barrel body; As a further description of the above technical solution: One end of the spring one is fixedly connected to one side of the inner wall of the rotating shaft, and the other end of the spring one is fixedly connected to the top end of the slider; As a further description of the above technical solution: The reset component includes a limit ring, one end of the limit ring is fixedly connected to the bottom end of the rotating rod, the outside of the limit ring is slidably connected to the inner wall of the top end of the shaft column, a spring two is fixedly connected to the bottom end of the rotating rod, and the other end of the spring two is fixedly connected to the inner wall of the top end of the shaft column; As a further description of the above technical solution: The transmission component includes a pulling plate, the outside of the pulling plate is rotatably connected to the inner wall of the top end of the shaft column, the front end of the pulling plate is fixedly connected to the rear side of the rotating rod, the other end of the pulling rope is fixedly connected to a pulling column, a plurality of sliding plates are fixedly connected to the outside of the pulling column and are symmetric in pairs, a sliding rod is fixedly connected to the bottom end of the sliding plate, the top end of the long rod is rotatably connected to the bottom end of the sliding rod, one end of the spring three is fixedly connected to the bottom end of the pulling column, and the other end of the spring three is fixedly connected to the inner wall bottom end of the shaft column; As a further description of the above technical solution: The outer side of the stirring plate is in contact with the inner wall of the barrel body, and the discharge tube is provided with a valve for controlling the outflow of materials. A color mixing method for 3D printing consumables, applicable to the above-mentioned color mixing device for 3D printing consumables, and the color mixing method is as follows: S1. Input materials: First, put the proportioned thermoplastic plastic balls and masterbatch into the interior of the barrel body from the feeding tube. Then start the motor to drive the rotating shaft to rotate, further drive the slider, bottom column and chassis to rotate. When the chassis rotates, it further drives the sliding column and shaft column to rotate. Finally, the shaft column drives the stirring plate to rotate, and then the stirring of the 3D printing consumables can start. S2. Stir evenly: When the stirring plate starts to rotate to stir the consumables, since the support rod here is fixed to the top end of the inner wall of the barrel body, when the chassis and the slope block rotate to a certain angle, they are squeezed by the pressing column, thereby driving the sliding column to squeeze the rotating rod. At this time, the rotating rod will be squeezed by the power transmitted by the motor and rotate, thereby driving the pulling plate to contract the pulling rope. At this time, the pulling column will be driven by the pulling rope to drive the sliding plate and the sliding rod to move up and down. Because the short rod is not at the center position of the rotating column, when the sliding 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. And the spring three will continuously reset the pulling column, so that the stirring plate rotates reciprocally at a certain angle, effectively dispersing the consumable agglomerates and making the stirring more uniform. S3. Output materials: After the color mixing of the consumables is completed, control the motor to stop output. At this time, control the valve on the discharge tube to output the color-mixed consumables.

[0008] The present invention has the following beneficial effects: 1. In the present invention, through the cooperation of the slope block and the pressing column, the stirring plate is driven to rotate reciprocally by a certain degree, breaking the traditional unidirectional rotation fixed flow path, so that the materials form a cross-flow path in the barrel body, effectively eliminating the stirring blind areas at the corners and the central area, ensuring that the masterbatch and the base material particles are fully contacted, avoiding color deviation of the 3D printing finished product caused by uneven mixing, and significantly improving the uniformity and color consistency of the consumable color matching.

[0009] 2. In the present invention, the transmission component composed of the rotating rod, the pulling plate and the spring three can automatically adjust the swinging angle of the stirring plate according to the motor speed. When the materials are easy to agglomerate, increasing the motor speed will make the stirring plate obtain a larger swinging amplitude, enhancing the shear dispersion ability of the agglomerated materials. Description of the drawings

[0010] Figure 1 It is a three-dimensional structure schematic diagram of the present invention; Figure 2 It is a structure schematic diagram of the barrel body of the present invention; Figure 3 Schematic structural diagram of the shaft column of the present invention; Figure 4 Schematic structural diagram of the chassis of the present invention; Figure 5 Schematic structural diagram of the rotating shaft of the present invention; Figure 6 Schematic structural diagram of the pressing column of the present invention; Figure 7 Schematic structural diagram of the pulling column of the present invention; Figure 8 Operation animation diagram of the stirring plate of the present invention; Figure 9 Schematic structural diagram of spring three of the present invention; Figure 10 Overall flowchart of the color mixing method in a color mixing device for 3D printing consumables according to the present invention.

[0011] In the figure: 1, barrel body; a, drive assembly; 2, support plate; 3, motor; 4, feeding cylinder; 5, discharging cylinder; 6, rotating shaft; 7, slider; 8, spring one; 9, bottom column; 10, chassis; 11, slope block; 12, support rod; 13, side column; 14, pressing column; 15, sliding column; 16, shaft column; 17, rotating rod; b, reset assembly; 18, limiting ring; 19, spring two; c, transmission assembly; 20, pulling plate; 21, pulling rope; 22, pulling column; 23, sliding plate; 24, sliding rod; 25, long rod; 26, short rod; 27, rotating column; 28, stirring plate; 29, spring three. Detailed implementation manners

[0012] The following describes in detail a color mixing device for 3D printing consumables and its color mixing method provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can also adopt other alternative methods for some well-known technologies; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0013] Refer to Figures 1 to 8, an embodiment provided by the present invention: a color mixing device for 3D printing consumables, including a barrel body 1, which serves as a receiving space for material stirring and provides a place for the stirring process. A feeding cylinder 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 proportioned thermoplastic plastic balls and masterbatch into the interior of the barrel body 1 to achieve the introduction of materials. A discharge cylinder 5 is fixedly connected to the right side of the bottom end of the barrel body 1. The discharge cylinder 5 is provided with a valve for controlling the outflow of materials. After the color mixing is completed, the valve is opened, and the evenly color-mixed consumables flow out under the action of gravity for material output. A driving assembly a is installed at the top end of the barrel body 1. The driving assembly a includes 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 with a motor 3, which provides a power source for the entire stirring process.

[0014] 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 with a rotating shaft 6. After the power is turned on, the rotating shaft 6 is driven to rotate. A slider 7 is slidably connected to the inner wall of the rotating shaft 6. The convex blocks on both sides enable the slider 7 to rotate along with the rotation of the rotating shaft 6. A first spring 8 is arranged inside the rotating shaft 6. One end of the first spring 8 is fixedly connected to one side of the inner wall of the rotating shaft 6, and the other end of the first spring 8 is fixedly connected to the top end of the slider 7. The first spring 8 here is used for subsequent reset operations. The bottom end of the slider 7 is fixedly connected with 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 bottom column 9 is fixedly connected with a 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 outside the driving assembly 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 together with the chassis 10. A support rod 12 is fixedly connected to the inner wall of the top end of the barrel body 1. A side column 13 is fixedly connected to the outside of the support rod 12. The bottom end of the support rod 12 is fixedly connected with a pressing column 14. The support rod 12 and the side column 13 can provide stable support for the pressing column 14 to ensure the stable position of the pressing column 14 and cooperate with the slope block 11 to achieve the function.

[0015] At the bottom end of the driving component a, two sliding columns 15 are installed. The top ends of the sliding columns 15 are fixedly connected to the bottom end of the chassis 10. When the chassis 10 rotates one circle, the slope blocks 11 on its outside will be squeezed by the pressing columns 14, thereby driving the chassis 10 and the sliding columns 15 to descend. The outside of the two sliding columns 15 is slidably connected with a shaft column 16. Here, the sliding columns 15 can also ensure that the force transmitted by the motor 3 is transmitted to the shaft column 16, causing it to drive the shaft column 16 to rotate. The top end inner wall of the shaft column 16 is rotatably connected with a rotating rod 17. When the sliding column 15 descends, the left sliding column 15 will squeeze the rotating rod 17, causing it to rotate around the connection point with 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 limiting ring 18. One end of the limiting ring 18 is fixedly connected to the bottom end of the rotating rod 17. The outside of the limiting ring 18 is slidably connected to the top end inner wall of the shaft column 16. The bottom end of the rotating rod 17 is fixedly connected with a second spring 19. The other end of the second spring 19 is fixedly connected to the top end inner wall of the shaft column 16. When the rotating rod 17 rotates, it will squeeze the second spring 19, causing it to contract, preparing for subsequent resetting.

[0016] A transmission component c is installed at 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 pulling disk 20. The front end of the pulling disk 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, it can drive the pulling disk 20 here to rotate. One side of the outside of the pulling disk 20 is fixedly connected with a pulling rope 21 that slides on the inner wall of the shaft column 16. The other end of the pulling rope 21 is fixedly connected to a pulling column 22. When the pulling disk 20 rotates, it further drives the pulling rope 21 to rotate, causing it to move upward, further driving the pulling column 22 to move upward. A plurality of sliding plates 23 are fixedly connected to the outside of the pulling column 22 and are symmetric in pairs. The bottom end of the sliding plate 23 is fixedly connected with a sliding rod 24. When the pulling column 22 moves, it can drive the sliding plate 23 and the sliding rod 24 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 sliding rod 24. 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 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 sliding rod 24 moves upward, it can drive the long rod 25 here to move upward and rotate, thereby driving the short rod 26 and the rotating column 27 to rotate by a certain angle.

[0017] A stirring plate 28 is fixedly connected to the outside of the rotating column 27. The outside of the stirring plate 28 is close to the inner wall of the barrel 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 color masterbatches inside the barrel 1. A third spring 29 is arranged at the bottom end of the transmission component c. One end of the third spring 29 is fixedly connected to the bottom end of the pulling column 22. The other end of the third spring 29 is fixedly connected to the bottom end inner wall of the shaft column 16. Here, the third spring 29 is used for the resetting of the above structure.

[0018] Driven by the above-mentioned various components, the stirring plate 28 rotates reciprocally. This design breaks the traditional fixed flow path of one-way rotation, enabling the material to form a cross-flow path within the barrel 1, effectively eliminating the stirring blind spots at the corners and the central area, ensuring sufficient contact between the masterbatch and the base material particles, avoiding color deviation in the 3D printed finished product caused by uneven mixing, and significantly improving the uniformity and color consistency of the consumable color matching.

[0019] Refer to Figure 9 , a method for mixing colors of consumables for 3D printing, applicable to the above-mentioned device for mixing colors of consumables for 3D printing. The color mixing method is as follows: S1. Feed the materials: First, the proportioned thermoplastic plastic balls and masterbatch are fed into the interior of the barrel 1 from the feeding cylinder 4. Subsequently, the motor 3 is started, which drives the rotation of the rotating shaft 6, further drives the rotation of the slider 7, the bottom column 9, and the chassis 10. When the chassis 10 rotates, it further drives the rotation of the sliding column 15 and the shaft column 16. Finally, the shaft column 16 drives the rotation of the stirring plate 28, and then the stirring of the consumables for 3D printing can begin. S2. Stir evenly: When the stirring plate 28 starts to rotate to stir the consumables, since the support rod 12 here is fixed to the top inner wall of the barrel 1, it is squeezed by the pressing column 14 after the chassis 10 and the slope block 11 rotate to a certain angle, thereby driving the sliding column 15 to squeeze the rotating rod 17. At this time, the rotating rod 17 will be squeezed by the power transmitted by the motor 3 and rotate, thereby driving the pulling plate 20 to contract the pulling rope 21. At this time, the pulling column 22 will be driven by the pulling rope 21 to drive the sliding plate 23 and the sliding rod 24 to move up and down. Because the short rod 26 is not at the central position of the rotating column 27, when the sliding rod 24 moves, it can drive the short rod 26 to rotate by a certain angle, thereby driving the rotation of the rotating column 27 and the stirring plate 28. The spring three 29 will continuously reset the pulling column 22, so that the stirring plate 28 makes a reciprocating rotation adjustment by a certain angle, effectively dispersing the consumable agglomerates and making the stirring more uniform. S3. Output the materials: After the color mixing of the consumables is completed, control the motor 3 to stop output. At this time, control the valve on the discharge cylinder 5 to output the color-mixed consumables.

[0020] Working principle: Before the device is started, under the pulling force of the spring one 8, the slider 7 is located at the top position of the inner wall of the rotating shaft 6; the rotating rod 17 is slidably connected to the inner wall of the top of the shaft column 16 through the limiting ring 18 and is pushed up by the spring two 19; the pulling column 22 is at the upper end of the inner wall of the shaft column 16 under the normal state force of the spring three 29, the pulling rope 21 is tightly wound around the outside of the pulling plate 20, and the stirring plate 28 is in a static state. At this time, the operator feeds the proportioned thermoplastic plastic balls and masterbatch from the feeding cylinder 4 on the left side of the top of the barrel 1, and the materials fall into the interior of the barrel 1 by gravity.

[0021] When the motor 3 is powered on and started, its driving end drives the rotating shaft 6 to rotate, and the slider 7 on the inner wall of the rotating shaft 6 rotates synchronously with the rotating shaft 6 due to the constraints of the spring 18 and the protrusions on both sides. The slider 7 transmits the rotational power to the slide column 15 through the bottom column 9 and the chassis 10 in turn, and the slide column 15 drives the shaft column 16 to rotate, and then drives the rotating column 27 and the stirring plate 28 connected to the shaft column 16 to start circular motion, so as to perform preliminary stirring and mixing on the materials in the barrel body 1.

[0022] As the chassis 10 continues to rotate, the slope block 11 fixed on its outside gradually approaches the support rod 12 fixed on the inner wall of the top of the barrel body 1. After the slope block 11 rotates one circle, it contacts and squeezes the pressure column 14 at the bottom of the support rod 12, forcing the chassis 10 and the sliding column 15 to slide down along the inner wall of the shaft column 16. The force triggered by the rotation of the motor 3 will cause the sliding column 15 to move down 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 plays a guiding and limiting role. (It should be noted that the movement trajectory of the pull rope 21 and the limit ring 18 are staggered here. It is 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 behind). 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 to move upward. The pulling column 22 drives the symmetrically arranged sliding plate 23 and sliding rod 24 to move synchronously, and the sliding 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.

[0023] When the slope block 11 rotates past the pressure column 14, the spring 2 19 releases elastic potential energy, pushes 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, the spring 3 29 pulls the pull column 22 to reset, so that the stirring plate 28 returns to the initial 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 slope 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 slope block 11 moves a greater distance after the collision with the pressure column 14, so that the stirring plate 28 rotates at a greater angle, which helps the material to be further sheared and dispersed. When the pull column 22 rises, the spring 3 29 at its bottom 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 reciprocating angle. 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.

[0024] After the color mixing is completed, the operator turns off the motor 3. At this time, the valve of the discharge tube 5 on the right side of the bottom end of the barrel body 1 is opened. Under the action of gravity, the consumables with uniform color mixing flow out through the discharge tube 5, and the staff can collect them or connect them to an extrusion machine to enter subsequent processing procedures such as extrusion molding.

[0025] The present invention covers any alternatives, modifications, equivalent methods and solutions made within the spirit and scope of the present invention. In order to enable the public to have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details.

[0026] The above description is only a preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A color mixing device for 3D printing consumables, comprising a barrel body (1), characterized in that: A driving component (a) is installed at the top end of the barrel body (1). A slope block (11) is installed outside the driving component (a). The inner wall of the top end of the barrel body (1) is fixedly connected with a support rod (12). A side column (13) is fixedly connected to the outside of the support rod (12). The bottom end of the support rod (12) is fixedly connected with a pressing column (14). Two sliding columns (15) are installed at the bottom end of the driving component (a). An axle column (16) is slidably connected to the outside of the two sliding columns (15). The inner wall top end of the axle column (16) is rotatably connected with a rotating rod (17). A reset component (b) is installed at the bottom end of the rotating rod (17). A transmission component (c) is installed at the rear side of the rotating rod (17) and rotates inside the axle column (16). A long rod (25) is installed at the bottom end of the transmission component (c). The other end of the long rod (25) is rotatably connected with a short rod (26). The other end of the short rod (26) is fixedly connected with a rotating column (27). A stirring plate (28) is fixedly connected to the outside of the rotating column (27). A third spring (29) is arranged at the bottom end of the transmission component (c).

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

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

4. A color mixing device for 3D printing consumables according to claim 2, characterized in that: One end of the first spring (8) is fixedly connected to one side of the inner wall of the rotating shaft (6), and the other end of the first spring (8) is fixedly connected to the top end of the slider (7).

5. A color mixing device for consumables in 3D printing according to claim 1, characterized in that: The reset component (b) includes a limiting ring (18). One end of the limiting ring (18) is fixedly connected to the bottom end of the rotating rod (17). The outside of the limiting ring (18) is slidably connected to the inner wall of the top end of the axle column (16). A second spring (19) is fixedly connected to the bottom end of the rotating rod (17), and the other end of the second spring (19) is fixedly connected to the inner wall of the top end of the axle column (16).

6. A color mixing device for 3D printing consumables according to claim 1, characterized in that: The transmission assembly (c) includes a pull disc (20), the front end of the pull disc (20) is fixedly connected to the rear side of the rotating rod (17), one side of the outside of the pull disc (20) is fixedly connected with 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 with a pull column (22), a plurality of sliding plates (23) are fixedly connected to the outside of the pull column (22) and are symmetric in pairs, the bottom end of the sliding plate (23) is fixedly connected with a sliding rod (24), the top end of the long rod (25) is rotatably connected to the bottom end of the sliding rod (24), one end of the third spring (29) is fixedly connected to the bottom end of the pull column (22), and the other end of the third spring (29) is fixedly connected to the bottom end of the inner wall of the shaft column (16).

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

8. A color mixing method for 3D printing consumables, wherein the color mixing method uses a color mixing device for 3D printing consumables according to any one of claims 1-7 for color mixing, and is characterized in that: The color mixing method is as follows: S1. Input materials: First, put the proportioned thermoplastic plastic balls and masterbatch into the inside of the barrel body (1) from the feeding barrel (4), and then start the motor (3) to drive the rotating shaft (6) to rotate, further drive the slider (7), the bottom column (9) and the chassis (10) to rotate, and when the chassis (10) rotates, it further drives the sliding column (15) and the shaft column (16) to rotate, and finally the shaft column (16) drives the stirring plate (28) to rotate, and then the stirring of the consumables for 3D printing can be started; S2. Stir evenly: When the stirring plate (28) starts to rotate to stir the consumables, since the support rod (12) here is fixed to the top end of the inner wall of the barrel body (1), it is squeezed by the pressing column (14) after the chassis (10) and the slope block (11) rotate to a certain angle, thereby driving the sliding column (15) to squeeze the rotating rod (17), and the rotating rod (17) will be squeezed by the power transmitted by the motor (3) at this time and rotate, thereby driving the pull disc (20) to contract the pull rope (21), and at this time the pull column (22) will be driven by the pull rope (21) to drive the sliding plate (23) and the sliding rod (24) to move up and down, and because the short rod (26) is not at the central 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 third spring (29) will continuously reset the pull column (22), so that the stirring plate (28) performs a reciprocating rotation adjustment at a certain angle, effectively dispersing the consumable agglomerates and making the stirring more uniform; S3. Material output: After the consumables are color mixed, control the motor (3) to stop output, and at this time, control the valve on the discharge barrel (5) to output the color mixed consumables.

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