A centrifugal 3D printing slurry mixer
By combining the premixing mechanism and the centrifugal stirring component, the problem of uneven mixing in existing 3D printing slurry mixers is solved, achieving efficient and uniform slurry mixing. This is suitable for high-viscosity slurries and meets the high-precision requirements of 3D printing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUANYU (SHENZHEN) IND TECHNOLOGY CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-03
AI Technical Summary
Existing 3D printing slurry mixers mostly use a single mixing method, which makes it difficult to achieve efficient and uniform mixing. The lack of a pre-mixing process leads to large differences in the initial state of the materials, affecting the final mixing quality.
By combining a premixing mechanism and a centrifugal stirring assembly, the material is initially mixed through the coordinated work of the stirring rod, spiral blades and stirring frame. Then, the centrifugal force field of the mixing cylinder and the continuous stirring of the stirring shaft are used to achieve multi-level material processing, ensuring that the material reaches a uniform state before entering the centrifugal stirring, and is further dispersed and tumbled under the action of centrifugal force.
It significantly improves the mixing uniformity and efficiency of slurry, and is especially suitable for high-viscosity slurries, ensuring the high precision requirements of 3D printing, reducing mixing dead zones and material waste, and lowering production costs.
Smart Images
Figure CN224442686U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of 3D printing technology, and in particular relates to a centrifugal 3D printing slurry mixer. Background Technology
[0002] With its advantages of rapid prototyping and personalized customization, 3D printing technology has achieved groundbreaking applications in many fields such as aerospace, biomedicine, and architectural design. As the application fields continue to expand, the performance requirements of 3D printing technology for printing materials are becoming increasingly stringent, and the mixing quality of 3D printing slurry plays a decisive role in the accuracy, strength, and overall performance of the printed product.
[0003] Existing 3D printing slurry mixers mostly use a single mixing method, relying solely on simple blade rotation. This method is difficult to achieve efficient and uniform mixing when mixing materials with different properties, and is prone to localized incomplete mixing and material agglomeration. Furthermore, traditional mixers lack a pre-mixing process for materials, resulting in significant differences in the initial state of the materials entering the main mixing stage, which further affects the final mixing quality.
[0004] To address these issues, we provide a centrifugal 3D printing slurry mixer. Utility Model Content
[0005] The purpose of this invention is to provide a centrifugal 3D printing slurry mixer. By combining a premixing mechanism and a centrifugal mixing component, it solves the problem that existing 3D printing slurry mixers mostly use a single mixing method, making it difficult to achieve efficient and uniform mixing, and lack a premixing process for materials, which affects the final mixing quality.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.
[0007] This utility model relates to a centrifugal 3D printing slurry mixer, comprising a frame, with columns fixedly connected to the four corners of the top of the frame. A premixing mechanism is fixedly connected to the top of each column. A centrifugal mixing assembly is fixedly connected to the inner cavity of the frame. The premixing mechanism includes a shell, with a premixing tank connected to the top of the shell and a feed pipe connected to the bottom of the premixing tank. A feed hopper is connected to one side of the top of the shell, and a feed pipe is connected to the bottom of the feed hopper. One side of the feed pipe is connected to the premixing tank. A mixer mechanism is installed on the top of the premixing tank. The bottom of the feed pipe passes through the top of the frame and extends to the bottom of the frame. The shell has a closed structure, which can effectively prevent material leakage and external impurities. The premixing chamber is vertically connected to the top center of the outer shell. The funnel-shaped premixing chamber has a large internal space, providing ample room for initial mixing of materials. The feed hopper facilitates rapid material input, and its bottom is connected to the side of the premixing chamber via a feed pipe, ensuring smooth material transport and preventing blockages. The premixing mechanism efficiently and comprehensively mixes the input materials. The coordinated work of the stirring rod, spiral blades, and stirring frame quickly disperses materials, promotes material circulation, and refines material particles, ensuring that the materials reach a relatively uniform initial state before entering the centrifugal mixing assembly. This effectively shortens the subsequent centrifugal mixing time, improves overall mixing efficiency, and lays a solid foundation for obtaining high-quality 3D printing slurry.
[0008] The present invention is further configured such that the centrifugal mixing assembly includes a fixed base, one side of which is fixedly connected to the frame, and a mixing cylinder is movably connected to the inner cavity of the fixed base. A first gear is fixedly connected to the surface of the mixing cylinder, and a first motor is fixedly connected to one side of the bottom of the fixed base. A second gear is fixedly connected to the output end of the first motor, and the second gear meshes with the first gear. The top of the mixing cylinder is connected to the feed pipe. The first motor drives the second gear, which then meshes with the first gear on the surface of the mixing cylinder, forming a stable gear transmission structure. This structure can transmit the power of the first motor to the mixing cylinder, causing the mixing cylinder to generate a centrifugal force field. Under the action of centrifugal force, the material is thrown towards the cylinder wall and is continuously stirred by the mixing shaft, which greatly improves the mixing uniformity and efficiency of the material, and is especially suitable for processing high-viscosity 3D printing slurry.
[0009] The present invention is further configured such that the agitator mechanism includes a connecting seat, the bottom of which is fixedly connected to the premixing tank, a second motor is fixedly connected to the top of the connecting seat, and a stirring shaft is fixedly connected to the output end of the second motor. The bottom of the stirring shaft penetrates the inner cavity of the premixing tank and extends to the inner cavity of the mixing drum. A stirring rod is fixedly connected to the top of the surface of the stirring shaft, a spiral blade is fixedly connected to the surface of the stirring shaft, and a stirring frame is fixedly connected to the bottom of the stirring shaft. The stirring rod, spiral blade, and stirring frame function at different heights and in different areas. The stirring rod is responsible for dispersing large pieces of material, the spiral blade promotes rapid material feeding, and the stirring frame performs fine mixing. This multi-layered stirring method ensures that the material is fully processed in both the premixing tank and the mixing drum, effectively avoiding mixing dead zones and significantly improving mixing quality. The material is constantly subjected to stirring during its journey from the premixing tank into the mixing drum, extending the effective stirring path of the material and further enhancing the mixing effect.
[0010] The present invention is further configured such that a sealed bearing seat is fixedly connected to the top of the mixing cylinder, and the top of the sealed bearing seat is connected to the feed pipe. The design of the sealed bearing seat effectively prevents material leakage during the process of entering the mixing cylinder from the feed pipe, thereby avoiding material waste and contamination of the equipment interior.
[0011] The present invention is further configured such that a first valve is connected to the surface of the feeding pipe. The first valve is a solenoid valve. The opening degree and time of the first valve are controlled by an electrical signal, thereby achieving precise control of the feeding speed and feeding amount.
[0012] The present invention is further configured such that a discharge pipe is connected to the bottom of the mixing cylinder, and a second valve is connected to one side of the discharge pipe. The discharge pipe facilitates the rapid discharge of the slurry after mixing, which can minimize slurry residue, improve material utilization, and reduce production costs. The second valve allows the operator to control the start and stop of discharge as needed.
[0013] The present invention is further configured such that support rods are fixedly connected to the four corners of the bottom of the fixed base, and one side of the support rod is fixedly connected to the frame by bolts. The support rod is connected to the frame by bolts to form a stable support structure, which can effectively disperse the vibration and impact force generated when the mixing drum rotates at high speed and reduce the overall shaking of the equipment.
[0014] The present invention has the following beneficial effects.
[0015] 1. This utility model uses a stirring rod driven by a stirring shaft to agitate materials in all directions with different motion trajectories, dispersing large pieces of material. The spiral blades generate spiral force through rotation, which propels the material to circulate up and down in the premixing tank, eliminating local accumulation of material. The stirring rack further refines the material particles. The three work together to achieve preliminary uniform mixing of the material in the premixing tank, allowing the material to reach a relatively consistent initial state before entering the centrifugal mixing component, laying a solid foundation for subsequent deep mixing.
[0016] 2. The mixing cylinder of this utility model rotates at high speed under the transmission structure composed of the first motor, the second gear and the first gear, generating a centrifugal force field. At the same time, the stirring shaft extends into the mixing cylinder to continuously stir, further dispersing the premixed material. On the other hand, the material diffuses towards the cylinder wall under the action of centrifugal force and continuously tumbles and convections under the stirring action. This step-by-step processing method that combines premixing and centrifugal stirring breaks the limitations of single stirring, greatly improves the uniformity and efficiency of slurry mixing, and ensures that the quality of 3D printing slurry meets the requirements of high-precision printing. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0018] Figure 1 This is a three-dimensional diagram of a centrifugal 3D printed slurry mixer.
[0019] Figure 2 This is a bottom-view perspective of a centrifugal 3D printed slurry mixer.
[0020] Figure 3 This is a three-dimensional view of the mixing cylinder in a centrifugal 3D printed slurry mixer.
[0021] Figure 4 This is a cross-sectional view of the outer shell of a centrifugal 3D printed slurry mixer.
[0022] Figure 5 This is a three-dimensional view of the agitator mechanism in a centrifugal 3D printed slurry mixer.
[0023] In the attached diagram: 1. Frame; 2. Column; 3. Premixing mechanism; 31. Outer shell; 32. Premixing tank; 33. Feed pipe; 34. Feed hopper; 35. Feed pipe; 36. Stirring mechanism; 361. Connecting seat; 362. Second motor; 363. Stirring shaft; 364. Stirring rod; 365. Spiral blade; 366. Stirring frame; 4. Centrifugal stirring assembly; 41. Fixed seat; 42. Mixing cylinder; 43. First gear; 44. First motor; 45. Second gear; 5. Sealed bearing seat; 6. First valve; 7. Discharge pipe; 8. Support rod. Detailed Implementation
[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0025] Example 1
[0026] Please see Figure 1-5 This utility model is a centrifugal 3D printing slurry mixer, including a frame 1. Columns 2 are fixedly connected to the four corners of the top of the frame 1. A premixing mechanism 3 is fixedly connected to the top of the columns 2. A centrifugal mixing assembly 4 is fixedly connected to the inner cavity of the frame 1. The premixing mechanism 3 includes a shell 31. A premixing tank 32 is connected to the top of the shell 31. A feeding pipe 33 is connected to the bottom of the premixing tank 32. A feeding hopper 34 is connected to one side of the top of the shell 31. A feeding pipe 35 is connected to the bottom of the feeding hopper 34. One side of the feeding pipe 35 is connected to the premixing tank 32. A mixer mechanism 36 is provided on the top of the premixing tank 32. The bottom of the feeding pipe 33 passes through the top of the frame 1 and extends to the bottom of the frame 1.
[0027] Specifically: the outer shell 31 has a closed structure, which can effectively prevent material leakage and the intrusion of external impurities. The top center of the outer shell 31 is vertically connected to the premixing box 32. The premixing box 32 is funnel-shaped and has a large internal space, providing ample space for the initial mixing of materials. The feed hopper 34 facilitates the rapid input of materials. Its bottom is connected to the side of the premixing box 32 through the feed pipe 35, ensuring smooth material conveying and avoiding blockage. The premixing mechanism 3 can perform efficient and comprehensive initial mixing of the input materials. The coordinated work of the stirring rod 364, the spiral blade 365 and the stirring frame 366 can quickly disperse materials, promote material circulation and refine material particles, so that the materials reach a relatively uniform initial state before entering the centrifugal mixing component 4, effectively shortening the subsequent centrifugal mixing time, improving the overall mixing efficiency, and laying a solid foundation for obtaining high-quality 3D printing slurry.
[0028] Example 2
[0029] Please see Figure 1-5Based on Embodiment 1, the centrifugal mixing assembly 4 includes a fixed base 41, one side of which is fixedly connected to the frame 1. A mixing cylinder 42 is movably connected to the inner cavity of the fixed base 41. A first gear 43 is fixedly connected to the surface of the mixing cylinder 42. A first motor 44 is fixedly connected to one side of the bottom of the fixed base 41. A second gear 45 is fixedly connected to the output end of the first motor 44, and the second gear 45 meshes with the first gear 43. The top of the mixing cylinder 42 communicates with the discharge pipe 33. The agitator mechanism 36 includes a connecting base 361, the bottom of which is fixedly connected to the premixing tank 32. A second motor 362 is fixedly connected to the top of the connecting base 361, and a stirring shaft 3 is fixedly connected to the output end of the second motor 362. 63. The bottom of the stirring shaft 363 penetrates the inner cavity of the premixing box 32 and extends into the inner cavity of the mixing cylinder 42. The top of the surface of the stirring shaft 363 is fixedly connected to the stirring rod 364. The surface of the stirring shaft 363 is fixedly connected to the spiral blade 365. The bottom of the stirring shaft 363 is fixedly connected to the stirring frame 366. The top of the mixing cylinder 42 is fixedly connected to the sealing bearing seat 5. The top of the sealing bearing seat 5 is connected to the discharge pipe 33. The surface of the discharge pipe 33 is connected to the first valve 6, which is a solenoid valve. The bottom of the mixing cylinder 42 is connected to the discharge pipe 7. One side of the discharge pipe 7 is connected to the second valve. The four corners of the bottom of the fixed seat 41 are fixedly connected to the support rod 8. One side of the support rod 8 is fixedly connected to the frame 1 by bolts.
[0030] Specifically: The first motor 44 drives the second gear 45, which in turn meshes with the first gear 43 on the surface of the mixing drum 42, forming a stable gear transmission structure. This structure transmits the power of the first motor 44 to the mixing drum 42, generating a centrifugal force field. Under this centrifugal force, the material is thrown against the drum wall and continuously stirred by the stirring shaft 363, greatly improving the mixing uniformity and efficiency. This is particularly suitable for processing high-viscosity 3D printing slurries. The stirring rod 364, spiral blade 365, and stirring frame 366 function at different heights and in different areas. The stirring rod 364 disperses large pieces of material, the spiral blade 365 facilitates rapid material feeding, and the stirring frame 366 performs fine mixing. This multi-layered stirring method ensures that the material is fully processed in both the premixing tank 32 and the mixing drum 42, effectively avoiding mixing dead zones and significantly improving the mixing quality. During the process of entering the mixing drum 42 from the premixing tank 32, the material is constantly subjected to agitation, which extends the effective mixing path of the material and further improves the mixing effect. The design of the sealed bearing seat 5 effectively prevents material leakage during the process of entering the mixing drum 42 from the discharge pipe 33, avoiding material waste and contamination of the equipment. The first valve 6 controls the opening degree and time of the valve through electrical signals, thereby achieving precise control of the discharge speed and discharge amount. The discharge pipe 7 facilitates the rapid discharge of the slurry after mixing, which can minimize slurry residue, improve material utilization, and reduce production costs. The setting of the second valve allows the operator to control the start and stop of discharge as needed. The support rod 8 is connected to the frame 1 by bolts to form a stable support structure, which can effectively disperse the vibration and impact force generated when the mixing drum 42 rotates at high speed, reducing the overall shaking of the equipment.
[0031] The working principle of this utility model is as follows: various materials required for 3D printing are fed into the mixer through the feed hopper 34. The materials flow into the premixing tank 32 through the feed pipe 35. The second motor 362 is started, and the second motor 362 drives the mixing shaft 363 to rotate through the coupling. The mixing rod 364 rotates accordingly, stirring the materials at different angles and directions, and quickly dispersing large pieces of materials. The spiral blades 365, which are spirally wound along the axis of the mixing shaft 363, generate spiral thrust when rotating, pushing the materials to circulate up and down in the premixing tank 32, eliminating local accumulation of materials, and achieving the purpose of rapid feeding. The mixing frame 366 performs fine cutting and kneading of the materials, further refining the material particles. Under the synergistic action of the mixing rod 364, the spiral blades 365 and the mixing frame 366, the materials are initially uniformly mixed in the premixing tank 32. After premixing, the feeding pipe 33, under the control of the first valve 6, transports the premixed materials to the centrifugal mixing assembly 4.
[0032] The premixed material enters the mixing cylinder 42 through the feed pipe 33. After the first motor 44 starts, it drives the second gear 45 to rotate, and the second gear 45 drives the first gear 43 to rotate, thereby driving the mixing cylinder 42 to rotate at high speed and generating a centrifugal force field. Under the action of centrifugal force, the material is thrown against the cylinder wall. The stirring shaft 363 continues to rotate, and its part extending into the mixing cylinder 42, together with the high-speed rotating mixing cylinder 42, further stirs the material. Under the dual action of centrifugal force and stirring force, the material continuously tumbles and convections to achieve deep mixing. This combination of centrifugal stirring and continuous stirring can effectively improve the mixing uniformity and efficiency of the material, and is especially suitable for high-viscosity 3D printing slurry.
[0033] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.
Claims
1. A centrifugal 3D printing slurry agitator comprising a frame (1), characterized in that: The four corners of the top of the frame (1) are fixedly connected with columns (2), the top of the columns (2) are fixedly connected with a premixing mechanism (3), and the inner cavity of the frame (1) is fixedly connected with a centrifugal stirring assembly (4). The premixing mechanism (3) includes a shell (31), the top of which is connected to a premixing tank (32), the bottom of which is connected to a feeding pipe (33), one side of the top of the shell (31) is connected to a feeding hopper (34), the bottom of which is connected to a feeding pipe (35), one side of which is connected to the premixing tank (32), the top of the premixing tank (32) is provided with a stirrer mechanism (36), and the bottom of the feeding pipe (33) penetrates the top of the frame (1) and extends to the bottom of the frame (1).
2. A centrifugal 3D printing paste mixer according to claim 1, characterized in that: The centrifugal mixing assembly (4) includes a fixed base (41), one side of which is fixedly connected to the frame (1). A mixing cylinder (42) is movably connected to the inner cavity of the fixed base (41). A first gear (43) is fixedly connected to the surface of the mixing cylinder (42). A first motor (44) is fixedly connected to one side of the bottom of the fixed base (41). A second gear (45) is fixedly connected to the output end of the first motor (44). The second gear (45) meshes with the first gear (43). The top of the mixing cylinder (42) is connected to the feed pipe (33).
3. A centrifugal 3D printing paste mixer according to claim 2, wherein: The stirrer mechanism (36) includes a connecting seat (361), the bottom of which is fixedly connected to the premixing tank (32), a second motor (362) is fixedly connected to the top of the connecting seat (361), a stirring shaft (363) is fixedly connected to the output end of the second motor (362), the bottom of the stirring shaft (363) penetrates the inner cavity of the premixing tank (32) and extends to the inner cavity of the mixing cylinder (42), a stirring rod (364) is fixedly connected to the top of the surface of the stirring shaft (363), a spiral blade (365) is fixedly connected to the surface of the stirring shaft (363), and a stirring frame (366) is fixedly connected to the bottom of the stirring shaft (363).
4. A centrifugal 3D printing paste mixer according to claim 2, wherein: A sealed bearing seat (5) is fixedly connected to the top of the mixing cylinder (42), and the top of the sealed bearing seat (5) is connected to the feed pipe (33).
5. A centrifugal 3D printing paste mixer according to claim 1, characterized in that: The surface of the feed pipe (33) is connected to a first valve (6), which is a solenoid valve.
6. A centrifugal 3D printing paste mixer according to claim 2, wherein: The bottom of the mixing cylinder (42) is connected to a discharge pipe (7), and a second valve is connected to one side of the discharge pipe (7).
7. A centrifugal 3D printing paste mixer according to claim 2, wherein: Support rods (8) are fixedly connected to the four corners of the bottom of the fixed base (41), and one side of the support rods (8) is fixedly connected to the frame (1) by bolts.