3D printing feeding mechanism

Abstract

The utility model belongs to the technical field of 3D printing, and particularly relates to a 3D printing feeding mechanism. Comprising a rack; the charging barrel is arranged on the lower side of the rack; the printing head is arranged at the bottom of the charging barrel through threads; the storage part is arranged at the top of the charging barrel, and the storage part is communicated with the charging barrel; the driving motor is arranged at the top of the rack; the stirring rod is arranged on an output shaft of the driving motor; the plurality of stirring blades are uniformly arranged on the stirring rod at intervals in the circumferential direction; the scraping mechanism is arranged on the stirring rod and is used for scraping materials adhered to the inner wall of the storage part; the scraping mechanism comprises a plurality of connecting columns which are uniformly arranged on the stirring rod at intervals in the circumferential direction, and the connecting columns and the stirring blades are distributed in a staggered manner; the fixing block is arranged on the connecting column; and the scraping plate is arranged on the fixed block and is in contact with the inner wall of the material storage part. The utility model provides a 3D printing feeding mechanism which can effectively mix and convey materials and can reduce adhesion and waste of the materials to the greatest extent.

Description

Technical Field

[0001] This utility model belongs to the field of 3D printing technology, and in particular relates to a 3D printing feeding mechanism. Background Technology

[0002] In the 3D printing industry, material supply and processing are crucial for achieving high-quality printing. With the continuous development of 3D printing technology, the variety of printing materials available on the market is increasingly rich, including plastics with different properties such as PLA, ABS, and PETG, each with its own advantages in performance and application. During the 3D printing process, the uniformity and consistency of the material directly affect the quality and precision of the printed product.

[0003] To ensure uniform mixing of 3D printing materials, stirring and mixing are typically performed in the material storage compartment. Stirring prevents material sedimentation and clumping, ensuring smooth material flow during transport. However, existing material storage compartment designs have revealed some problems in practical applications, particularly during the contact between the material and the inner wall of the compartment, often leading to material adhesion and residue. This not only wastes material but may also affect material supply in subsequent printing processes, resulting in inconsistent print quality.

[0004] Specifically, the material, shape, and surface treatment of the inner wall of the storage compartment all affect the degree of material adhesion. Traditional storage compartments often use materials that lack good anti-adhesion properties, causing materials to adhere during storage and transportation, resulting in incomplete release. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a 3D printing feeding mechanism that can effectively mix and transport materials while minimizing material adhesion and waste.

[0006] In view of this, the present invention provides a 3D printing feeding mechanism, comprising:

[0007] frame;

[0008] The material cylinder is located on the lower side of the frame and extends downward to penetrate the frame;

[0009] The print head is threaded at the bottom of the barrel.

[0010] The storage section is located at the top of the material cylinder and is connected to the material cylinder.

[0011] The feeding transmission mechanism, located between the material cylinder and the storage section, is used to continuously transport printing material to the print head;

[0012] The drive motor is located at the top of the frame;

[0013] The stirring rod is mounted on the output shaft of the drive motor and extends downward into the material cylinder and storage section;

[0014] Multiple stirring blades are evenly spaced on the stirring rod in the circumferential direction, and the stirring blades are located inside the storage section;

[0015] The scraping mechanism, mounted on the stirring rod, is used to scrape off the material adhering to the inner wall of the storage section;

[0016] The scraping mechanism includes:

[0017] Multiple connecting columns are evenly spaced on the stirring rod along the circumferential direction, and the connecting columns are staggered from the stirring blades.

[0018] A fixing block is installed on the connecting post;

[0019] The scraper is mounted on a fixed block and contacts the inner wall of the storage section.

[0020] In the above technical solution, the feeding transmission mechanism further includes:

[0021] The spiral feeder is mounted on the mixing rod and is located inside the storage section and the material cylinder.

[0022] In any of the above technical solutions, a heat insulation layer is further provided on the outside of the material cylinder.

[0023] In any of the above technical solutions, a sensor module is further provided inside the material storage section to detect the remaining amount of printing material and feed it back to the control system in real time. The control system adjusts the working state of the drive motor according to the feedback signal from the sensor module to achieve automatic feeding.

[0024] In any of the above technical solutions, the storage section and the material cylinder are further connected by a flange and bolts, which is easy to disassemble and convenient for cleaning and maintenance.

[0025] In any of the above technical solutions, a mounting plate is further provided on the frame, and multiple threaded holes are provided on the rear side of the mounting plate.

[0026] The beneficial effects of this utility model are:

[0027] 1. The stirring rod is driven by the drive motor to rotate, and the stirring blades rotate rapidly in the storage section to stir and mix the materials, prevent the materials from settling and clumping, and keep the materials in a uniform state. The connecting column and the fixed block are driven by the rotation of the stirring rod to drive the scraper to slide on the inner wall of the storage section to clean the adhering materials, thereby improving the utilization rate of materials and reducing waste.

[0028] 2. The operation of the drive motor causes the spiral feed paddle to rotate. The thrust generated by the spiral shape pushes the material from the storage section to the material cylinder, ensuring that the material is delivered to the print head at a stable speed. This effectively promotes the flow of material, prevents material blockage, and ensures a stable material supply throughout the entire printing process.

[0029] 3. The sensor module detects the remaining material in the storage compartment in real time and feeds the data back to the control system. After receiving the sensor feedback signal, the control system analyzes the remaining material and automatically adjusts the speed of the drive motor or activates the material replenishment mechanism. It also issues an alarm to notify the operator to replenish the material in time, avoid printing interruption, and ensure the smooth progress of the printing process. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0031] Figure 2 This is an exploded view of the present invention;

[0032] Figure 3 This is a three-dimensional structural diagram of the first part of this utility model;

[0033] Figure 4 This is a three-dimensional structural diagram of the second part of this utility model;

[0034] Figure 5 This is a system framework diagram of this utility model;

[0035] The attached diagram is labeled as follows: 1. Frame; 2. Material cylinder; 3. Print head; 4. Material storage section; 5. Drive motor; 6. Stirring rod; 7. Stirring blade; 8. Scraping mechanism; 81. Connecting column; 82. Fixing block; 83. Scraper; 9. Feeding sensing mechanism; 91. Spiral feeder; 10. Insulation layer; 18. Sensor module; 19. Control system; 11. Flange; 12. Bolt; 13. Mounting plate; 14. Threaded hole. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0037] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0038] Example 1:

[0039] like Figure 1 and Figure 2 As shown, this embodiment provides a 3D printing feeding mechanism, including:

[0040] Rack 1;

[0041] Material cylinder 2 is located on the lower side of frame 1, and extends downward to penetrate frame 1;

[0042] Print head 3 is threaded at the bottom of material cylinder 2;

[0043] The storage section 4 is located at the top of the material cylinder 2 and is connected to the material cylinder 2.

[0044] The feeding transmission mechanism is located between the material cylinder 2 and the material storage section 4, and is used to continuously convey the printing material to the print head 3;

[0045] Drive motor 5 is located at the top of frame 1;

[0046] The stirring rod 6 is mounted on the output shaft of the drive motor 5 and extends downward into the material cylinder 2 and the storage section 4.

[0047] Multiple stirring blades 7 are evenly spaced on the stirring rod 6 in the circumferential direction, and the stirring blades 7 are located inside the storage section 4.

[0048] The scraping mechanism 8 is mounted on the stirring rod 6 and is used to scrape off the material adhering to the inner wall of the storage section 4;

[0049] The scraping mechanism 8 includes:

[0050] Multiple connecting columns 81 are evenly spaced on the stirring rod 6 along the circumferential direction, and the connecting columns 81 are staggered from the stirring blades 7.

[0051] Fixing block 82 is provided on connecting post 81;

[0052] The scraper 83 is mounted on the fixed block 82 and contacts the inner wall of the storage section 4.

[0053] In this technical solution, the stirring rod 6 and stirring blade 7 inside the material storage section 4 continuously stir the material during storage, preventing sedimentation and clumping, and ensuring the uniformity of the printing material. The scraping mechanism 8 effectively cleans the material adhering to the inner wall of the material storage section 4, minimizing material waste and improving efficiency. The feeding transmission mechanism ensures that the material is continuously and stably delivered to the print head 3, avoiding printing interruptions or quality degradation caused by unstable material supply. Through the control of the drive motor 5, the entire feeding process is automated, reducing manual intervention and improving work efficiency.

[0054] Workflow: Before 3D printing begins, the material to be printed is placed in the storage compartment 4, initially at rest. The user starts the drive motor 5, which drives the stirring rod 6 via the output shaft. The stirring blades 7 rotate rapidly within the storage compartment 4, mixing the material. This process effectively prevents material sedimentation and clumping, keeping the material uniform. Simultaneously, the connecting column 81 and the fixing block 82, through the rotation of the stirring rod 6, drive the scraper 83 to slide on the inner wall of the storage compartment 4, cleaning up any adhering material. This ensures that all material in the storage compartment 4 is effectively utilized each time it is fed. While stirring and scraping, the feeding transmission mechanism starts working, pushing the stirred material to the print head 3 at a stable flow rate. This ensures a continuous and consistent material supply during the printing process. Throughout the process, stirring and scraping continue, ensuring the material remains in optimal condition within the storage compartment 4 for immediate delivery. This not only improves material utilization and reduces waste but also optimizes the stability and efficiency of the printing process, solving the problems of material adhesion and waste in traditional 3D printing material delivery, and improving material supply efficiency and print quality.

[0055] like Figure 2 As shown, in this embodiment, the optimized feeding transmission mechanism includes:

[0056] The spiral feeder 91 is mounted on the stirring rod 6 and is located inside the storage section 4 and the material cylinder 2.

[0057] In this technical solution, the spiral feeder 91 generates a continuous driving force during rotation, causing the material to be conveyed from the storage section 4 to the material cylinder 2, and preventing material deposition or blockage during the conveying process. Through the continuous rotation of the spiral feeder 91, the material is evenly distributed during the feeding process, avoiding the impact of material non-uniformity on printing quality.

[0058] Workflow: The user starts the drive motor 5, which drives the stirring rod 6 and stirring blades 7 through the output shaft to continuously stir the material in the storage section 4, ensuring its uniformity. The drive motor 5 continues to run, and the spiral feed paddle 91 begins to rotate. Due to its spiral shape, the thrust generated by the feed paddle pushes the material from the storage section 4 to the material cylinder 2, ensuring that the material is delivered to the print head 3 at a stable speed. During the rotation of the spiral feed paddle 91, the material is propelled at a uniform flow rate, ensuring the continuity and consistency of the material during the delivery process. Throughout the printing process, the stirring and feeding mechanisms work continuously to ensure that the material is in optimal condition and ready to be delivered at any time, enhancing the stability and quality of 3D printing. In this way, the spiral feed paddle 91 can effectively promote the flow of material during the material delivery process by utilizing the characteristics of its spiral shape, preventing material blockage and ensuring a stable material supply throughout the entire printing process.

[0059] Example 2:

[0060] This embodiment provides a 3D printing feeding mechanism, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0061] like Figure 1 and Figure 2 As shown in this embodiment, the outer side of the material cylinder is provided with an insulation layer 10.

[0062] In this technical solution, the insulation layer 10 effectively isolates the material from the temperature influence of the external environment, maintaining the temperature of the material inside the barrel and preventing it from becoming viscous or solidifying due to cooling during transport. By maintaining a stable temperature, the material delivered to the print head 3 is always in a suitable flow state, thereby improving print quality and reducing printing defects. The insulation layer 10 reduces heat loss, thus lowering the energy consumption of the drive motor 5 and heating device, and improving the overall system energy efficiency. A suitable temperature prevents thermal degradation of the material during transport, extending its service life and ensuring the high efficiency and economy of the printing process.

[0063] Workflow: The material to be printed is prepared in the storage section 4 at a suitable temperature. The user starts the drive motor 5, activating the entire system. The insulation layer 10 ensures that the temperature of the material in the barrel is maintained during transport. If the system is equipped with a heating device, it is activated to bring the temperature inside the barrel to the set value. Under the protection of the insulation layer 10, the stirring rod 6 and the spiral feed paddle 91 begin to work, stirring the material and conveying it to the print head 3 at a stable speed. The material delivered to the print head 3 is maintained at the ideal temperature, ensuring a smooth printing process. The entire printing process continues, and the insulation layer 10 always plays its role in ensuring the material temperature remains stable. This effectively controls the material temperature and improves the stability of the material during transport. A suitable temperature not only ensures the fluidity of the material but also prevents material cooling and solidification during transport, ensuring that the material temperature remains within the optimal range during transport.

[0064] Example 3:

[0065] This embodiment provides a 3D printing feeding mechanism, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0066] like Figure 5 As shown, in this embodiment, the optimized material storage section 4 is equipped with a sensor module 18, which is used to detect the remaining amount of printing material and feed it back to the control system 19 in real time. The control system 19 adjusts the working state of the drive motor 5 according to the feedback signal of the sensor module 18 to achieve automatic feeding.

[0067] In this technical solution, the sensor module 18 continuously monitors the remaining material level inside the material storage section 4, promptly capturing material changes to ensure the accuracy and real-time nature of the information. The sensor module 18 feeds back the monitored remaining material level information to the control system 19 in real time, enabling the system to make corresponding adjustments based on the actual situation. The control system 19 automatically adjusts the operating state of the drive motor 5 based on the sensor feedback signal to ensure a stable material supply and avoid printing interruptions due to insufficient material. When the remaining material level falls below a set threshold, the control system 19 can trigger an alarm to remind the operator to replenish the material in time, avoiding impact on the printing progress.

[0068] Workflow: The printing material is placed in the material storage compartment 4, initially at rest, and the sensor module 18 begins monitoring the remaining material level. The user starts the drive motor 5, and the sensor module 18 enters its working state, continuously monitoring the remaining material level inside the material storage compartment 4 and feeding the data back to the control system 19. Upon receiving the sensor feedback signal, the control system 19 analyzes the remaining material level. If the remaining material level is higher than a set value, the control system 19 maintains the current operating state of the drive motor 5; if the material level is low, the control system 19 automatically adjusts the speed of the drive motor 5 or activates a material replenishment mechanism. Under the regulation of the control system 19, the drive motor 5 operates at an appropriate speed, ensuring a continuous and stable delivery of material to the print head 3. If the sensor module 18 detects that the remaining material is below the set safety threshold, the control system 19 will issue an alarm to notify the operator to replenish the material in time, avoid printing interruption, and ensure the smooth progress of the printing process. This realizes intelligent material monitoring and supply, improves the automation and stability of the 3D printing process, significantly reduces the need for human intervention, improves printing efficiency and quality, and enhances the automation level of material handling, ensuring the stability of material supply and avoiding printing interruptions due to insufficient material, thereby improving the overall efficiency and reliability of 3D printing.

[0069] Example 4:

[0070] This embodiment provides a 3D printing feeding mechanism, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0071] like Figure 2 and Figure 3 As shown, in this embodiment, the optimized material storage section 4 and the material cylinder 2 are connected by a flange 11 and bolts 12, which is easy to disassemble and convenient for cleaning and maintenance.

[0072] In this technical solution, the flange 11 and bolt 12 connection design allows for quick disassembly of the material storage section 4 and the material cylinder 2, reducing the time and labor required for cleaning and maintenance. Regular disassembly and cleaning of the material cylinder 2 and the material storage section 4 helps remove material residue and impurities, prevents blockages, and improves material flowability, thereby ensuring print quality. This design can flexibly adapt to different types of printing materials, facilitating user replacement and cleaning as needed. The flange 11 connection provides excellent sealing, preventing material leakage during transport and improving the overall reliability of the system.

[0073] Workflow: During 3D printing, the material storage section 4 and the material cylinder 2 are connected via flange 11 and bolts 12. Material flows from the material storage section 4 into the material cylinder 2 and supplies the print head 3. Users should prepare to clean the material storage section 4 and material cylinder 2 according to system prompts or a scheduled maintenance plan. First, turn off the power and ensure the equipment is in a safe state. Use tools to remove the bolts 12 on flange 11 to easily separate the material storage section 4 from the material cylinder 2. Thoroughly clean the disassembled material storage section 4 and material cylinder 2 to remove material residue, impurities, and other possible contaminants. If necessary, check the connection surfaces and seals to ensure no damage. After cleaning, align the material storage section 4 and material cylinder 2, reconnect flange 11 using bolts 12, ensuring a secure connection and checking the seal. After reassembly, restart the equipment and test it to ensure normal material flow and stable operation. Once the equipment is back to normal, 3D printing can continue, ensuring print quality and efficiency. By adopting the connection method of flange 11 and bolt 12, the maintainability and ease of cleaning of the equipment are significantly improved, which not only reduces cleaning time, but also enhances the reliability and adaptability of the system.

[0074] like Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, the optimized mounting plate 13 is provided on the frame 1, and the mounting plate 13 has a plurality of threaded holes 14 on its rear side.

[0075] In this technical solution, when assembling the 3D printing feeding mechanism, the mounting plate 13 is fixed to the frame 1 to ensure its firmness and reliability. According to design requirements, the installation position of the component is confirmed, a suitable threaded hole 14 is selected, the component is aligned with the selected threaded hole 14, and it is fixed to the mounting plate 13 with bolts 12, ensuring a firm and stable connection. By setting up the mounting plate 13 on the frame 1 and equipping it with multiple threaded holes 14, the flexibility of component installation and the modular design of the system are achieved, improving the scalability and maintenance convenience of the equipment, allowing users to freely configure it according to different needs, and improving the efficiency and reliability of 3D printing.

[0076] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A 3D printing feeding mechanism, characterized in that, include: Rack (1); A material cylinder (2) is disposed on the lower side of the frame (1), and the material cylinder (2) extends downward to penetrate the frame (1). The print head (3) is threaded at the bottom of the barrel (2); A storage section (4) is provided at the top of the material cylinder (2), and the storage section (4) is connected to the material cylinder (2); The feeding transmission mechanism is located between the material cylinder (2) and the storage part (4) for continuously conveying the printing material to the print head (3). A drive motor (5) is mounted on the top of the frame (1); A stirring rod (6) is mounted on the output shaft of the drive motor (5), and the stirring rod (6) extends downward into the material cylinder (2) and the storage part (4); Multiple stirring blades (7) are evenly spaced on the stirring rod (6) in the circumferential direction, and the stirring blades (7) are located inside the storage part (4); The scraping mechanism (8) is mounted on the stirring rod (6) and is used to scrape off the material adhering to the inner wall of the storage section (4); The scraping mechanism (8) includes: Multiple connecting columns (81) are evenly spaced on the stirring rod (6) in the circumferential direction, and the connecting columns (81) are staggered from the stirring blades (7); A fixing block (82) is disposed on the connecting post (81); A scraper (83) is disposed on the fixed block (82), and the scraper (83) contacts the inner wall of the storage section (4).

2. The 3D printing feeding mechanism according to claim 1, characterized in that, The feeding transmission mechanism includes: A spiral feeder (91) is mounted on the stirring rod (6) and is located inside the storage section (4) and the material cylinder (2).

3. The 3D printing feeding mechanism according to claim 1, characterized in that, The outer side of the material cylinder (2) is provided with a heat insulation layer (10).

4. The 3D printing feeding mechanism according to claim 1, characterized in that, The storage section (4) is equipped with a sensor module (18) for detecting the remaining amount of printing material and feeding it back to the control system (19) in real time. The control system (19) adjusts the working state of the drive motor (5) according to the feedback signal from the sensor module (18) to achieve automatic feeding.

5. A 3D printing feeding mechanism according to claim 1, characterized in that, The storage section (4) and the cylinder (2) are connected by a flange (11) and bolts (12), which makes it easy to disassemble, clean and maintain.

6. A 3D printing feeding mechanism according to claim 1, characterized in that, The frame (1) is provided with a mounting plate (13), and the mounting plate (13) has multiple threaded holes (14) on its rear side.

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