Anti-blocking structure of industrial-grade 3D printing nozzle

By designing a rotating and telescopic assembly to drive the cleaning rod to rotate inside the printhead and combine it with high-temperature gas cleaning, the problem of printhead clogging is solved, achieving anti-clogging cleaning of the printhead and ensuring the continuity and efficiency of printing operations.

CN224296602UActive Publication Date: 2026-05-29HANGZHOU TIANMAI RAPID MOLD MANUFACTURING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU TIANMAI RAPID MOLD MANUFACTURING CO LTD
Filing Date
2025-07-14
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing 3D printing nozzles are prone to clogging after processing due to the solidification of residual material, and there is a lack of effective anti-clogging and cleaning structures.

Method used

An anti-clogging structure is designed, comprising a main body, a rotating component, a telescopic component, and a cleaning component. The rotating component flips the cleaning component to below the nozzle, and the telescopic component extends into the nozzle. The cleaning rod rotates and high-temperature gas cleans up the waste, preventing clogging.

Benefits of technology

It effectively prevents printhead clogging, ensuring the continuity and efficiency of printing jobs. Cleaning is convenient and efficient, avoiding printing interruptions caused by clogging.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an industrial grade 3D printing nozzle prevents stifled structure, including the main part, the back of main part is installed with fixed assembly, the outer surface of main part is installed with rotating assembly, the outer surface of rotating assembly is installed with telescopic assembly, the bottom of telescopic assembly is installed with cleaning assembly, the bottom of main part is installed with spouts material head. The device can extrude the material after heating through the main part and spouts material head installed in the device, thereby printing operation is carried out, and after printing is finished, the rotating assembly installed in the device is used for rotating the cleaning assembly to the lower side of spouts material head, the cleaning rod in the cleaning assembly can be driven to extend into the inside of spouts material head through the telescopic assembly, and the cleaning rod is driven to rotate through the second driving motor, thereby the inner wall of spouts material head can be cleaned, and the cleaned waste chip can be cleaned out through the high temperature gas in the main part, and the phenomenon that the device is prone to blockage is effectively prevented.
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Description

Technical Field

[0001] This utility model relates to the field of 3D printing, and in particular to an anti-clogging structure for industrial-grade 3D printing nozzles. Background Technology

[0002] The 3D printing nozzle is a key component in a 3D printer used to extrude molten material. It typically consists of a nozzle and a heating block. The nozzle is the core part of the nozzle and is responsible for precisely extruding the material and forming the desired shape.

[0003] The 3D printing nozzle anti-clogging structure mainly consists of six parts: a feeding pretreatment module, a temperature control and heating module, a pressure regulation module, an anti-backflow module, the nozzle body, and an auxiliary cleaning module. These modules work together through precise mechanical structures and electrical connections to form a complete anti-clogging system. However, existing devices still have some shortcomings. After processing, existing devices are prone to leaving some residual material inside the nozzle. After a period of time, the material will solidify due to cooling, leading to nozzle clogging. To address this issue, we propose an industrial-grade 3D printing nozzle anti-clogging structure. Utility Model Content

[0004] The purpose of this invention is to provide an anti-clogging structure for industrial-grade 3D printing nozzles to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An industrial-grade 3D printing nozzle anti-clogging structure includes a main body, a fixing component mounted on the back of the main body, a rotating component mounted on the outer surface of the main body, a telescopic component mounted on the outer surface of the rotating component, a cleaning component mounted at the bottom of the telescopic component, and a nozzle mounted at the bottom of the main body.

[0007] In a further embodiment, the rotating assembly includes two fixed frames, both of which are located on the outer surface of the main body. A first bearing is embedded on the outer surface of each of the two fixed frames. A first connecting rod is installed on the inner ring of each of the two first bearings. A first drive motor is installed at one end of one of the first connecting rods, and a support frame is installed at the ends of the two first connecting rods that are far apart from each other.

[0008] In a further embodiment, the telescopic assembly includes two electric push rods, which are respectively located at the top of two support frames. Each of the two electric push rods has an extension rod installed at its output end, and the bottom ends of the two extension rods are jointly installed with a base plate.

[0009] In a further embodiment, two grooves are formed on the inner walls of both support frames, and sliders are installed on the outer surfaces of both extension rods, with each groove being adapted to a slider.

[0010] In a further embodiment, the cleaning component includes a base frame located on the bottom surface of a base plate, a second bearing embedded in the upper surface of the base frame, a second connecting rod mounted on the inner ring of the second bearing, and a second drive motor mounted on the bottom end of the second connecting rod.

[0011] In a further embodiment, a mounting block is installed at the top of the second connecting rod, a threaded rod is threadedly connected to the upper surface of the mounting block, and a cleaning rod is installed at the top of the threaded rod.

[0012] In a further embodiment, the fixing component includes a mounting plate located on the back of the main body, and the back of the mounting plate has a plurality of mounting holes.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model relates to an industrial-grade 3D printing nozzle anti-clogging structure. The device, consisting of a main body and a nozzle, heats and extrudes the material for printing. After printing, a rotating component rotates the cleaning component below the nozzle. A telescopic component then drives a cleaning rod within the cleaning component to extend into the nozzle. A second drive motor rotates the cleaning rod, cleaning the inner wall of the nozzle. Combined with high-temperature gas within the main body, this effectively removes debris, preventing clogging. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an anti-clogging structure for industrial-grade 3D printed nozzles.

[0016] Figure 2 This is a cross-sectional schematic diagram of an anti-clogging structure for industrial-grade 3D printing nozzles.

[0017] Figure 3 This is a cross-sectional view of the cleaning component in an industrial-grade 3D printing nozzle anti-clogging structure.

[0018] Figure 4 This is a top-section diagram of the telescopic component in an industrial-grade 3D printing nozzle anti-clogging structure.

[0019] Figure 5 This is a rear view schematic diagram of the anti-clogging structure for industrial-grade 3D printing nozzles.

[0020] In the diagram: 1. Main body; 2. Rotating assembly; 3. Telescopic assembly; 4. Cleaning assembly; 5. Fixing assembly; 6. Spray head; 7. First bearing; 8. First drive motor; 9. First connecting rod; 10. Base plate; 11. Base frame; 12. Second drive motor; 13. Extension rod; 14. Support frame; 15. Electric push rod; 16. Cleaning rod; 17. Threaded rod; 18. Mounting block; 19. Second bearing; 20. Second connecting rod; 21. Slider; 22. Slide groove; 23. Mounting plate; 24. Mounting hole; 25. Fixing frame. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5In this utility model, the industrial-grade 3D printing nozzle anti-clogging structure includes a main body 1, a fixing component 5 installed on the back of the main body 1, a rotating component 2 installed on the outer surface of the main body 1, a telescopic component 3 installed on the outer surface of the rotating component 2, a cleaning component 4 installed at the bottom of the telescopic component 3, and a nozzle 6 installed at the bottom of the main body 1. The cleaning component 4 includes a bottom frame 11, which is located on the bottom surface of the base plate 10. A second bearing 19 is embedded on the upper surface of the bottom frame 11. A second connecting rod 20 is installed on the inner ring of the second bearing 19. A second drive motor 12 is installed at the bottom of the second connecting rod 20. An installation block 18 is installed at the top of the second connecting rod 20. A threaded rod 17 is threadedly connected to the upper surface of the installation block 18. A cleaning rod 16 is installed at the top of the threaded rod 17. The second drive motor 12 drives the threaded rod 17 to rotate, thereby driving the cleaning rod 16 to rotate. A brush is installed on the outer surface of the cleaning rod 16 to clean the inner wall of the nozzle 6.

[0025] The rotating assembly 2 includes two fixed frames 25, both located on the outer surface of the main body 1. A first bearing 7 is embedded in the outer surface of each fixed frame 25. A first connecting rod 9 is installed on the inner ring of each of the two first bearings 7. A first drive motor 8 is installed at one end of one of the first connecting rods 9. A support frame 14 is installed at the ends of the two first connecting rods 9 that are far apart from each other. The telescopic assembly 3 includes two electric push rods 15, located at the top of the two support frames 14 respectively. An extension rod 13 is installed at the output end of each of the two electric push rods 15. A base plate 10 is installed at the bottom end of both extension rods 13. The rotating assembly 2 and the telescopic assembly 3 can drive the cleaning assembly 4 to rotate, thereby changing the position of the cleaning rod 16 and preventing the cleaning assembly 4 from obstructing the normal printing operation of the device.

[0026] Two grooves 22 are provided on the inner walls of the two support frames 14, and sliders 21 are installed on the outer surfaces of the two extension rods 13. Each groove 22 is adapted to the slider 21, which makes the two extension rods 13 in the telescopic assembly 3 more stable when they extend.

[0027] The fixing component 5 includes a mounting plate 23, which is located on the back of the main body 1. The back of the mounting plate 23 has multiple mounting holes 24 to facilitate the installation of the device in a suitable position.

[0028] The working principle of this utility model is as follows:

[0029] When using this industrial-grade 3D printing nozzle anti-clogging structure, the operator first installs the device in the printing instrument using the fixing component 5 and connects it to the device through the pipe above the main body 1 to ensure normal operation. Then, the device is started to perform the printing operation. After printing is completed, the rotating component 2 in the device is activated, which drives the cleaning component 4 to rotate and move it to the bottom of the nozzle 6. Next, the telescopic component 3 in the device is activated, which allows the cleaning rod 16 to extend into the interior of the nozzle 6. The second drive motor 12 drives the cleaning rod 16 to rotate. After cleaning for a period of time, the cleaning component 4 is flipped to a horizontal position using the telescopic component 3 and the rotating component 2. Finally, the extrusion component in the device is activated to discharge the waste material inside the nozzle 6.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An industrial-grade 3D printing nozzle anti-clogging structure, characterized by: Includes a main body (1), a fixing component (5) is installed on the back of the main body (1), a rotating component (2) is installed on the outer surface of the main body (1), a telescopic component (3) is installed on the outer surface of the rotating component (2), a cleaning component (4) is installed at the bottom of the telescopic component (3), and a spray head (6) is installed at the bottom of the main body (1).

2. The industrial-grade 3D printing nozzle anti-clogging structure according to claim 1, characterized in that: The rotating assembly (2) includes two fixed frames (25), both fixed frames (25) are located on the outer surface of the main body (1), and the outer surfaces of the two fixed frames (25) are inlaid with first bearings (7). The inner rings of the two first bearings (7) are each equipped with a first connecting rod (9). One end of one of the first connecting rods (9) is equipped with a first drive motor (8), and the ends of the two first connecting rods (9) that are far apart from each other are each equipped with a support frame (14).

3. The industrial-grade 3D printing nozzle anti-clogging structure according to claim 1, characterized in that: The telescopic assembly (3) includes two electric push rods (15), which are located at the top of the two support frames (14) respectively. The output ends of the two electric push rods (15) are each equipped with an extension rod (13), and the bottom ends of the two extension rods (13) are jointly equipped with a base plate (10).

4. The industrial-grade 3D printing nozzle anti-clogging structure according to claim 3, characterized in that: Two grooves (22) are provided on the inner walls of the two support frames (14), and sliders (21) are installed on the outer surfaces of the two extension rods (13). Each groove (22) is adapted to the slider (21).

5. The industrial-grade 3D printing nozzle anti-clogging structure according to claim 1, characterized in that: The cleaning component (4) includes a bottom frame (11) located on the bottom surface of the bottom plate (10). A second bearing (19) is inlaid on the upper surface of the bottom frame (11). A second connecting rod (20) is installed on the inner ring of the second bearing (19). A second drive motor (12) is installed at the bottom end of the second connecting rod (20).

6. The industrial-grade 3D printing nozzle anti-clogging structure according to claim 5, characterized in that: The second connecting rod (20) has an installation block (18) installed at its top end. The upper surface of the installation block (18) is threaded with a threaded rod (17), and the top end of the threaded rod (17) is equipped with a cleaning rod (16).

7. The industrial-grade 3D printing nozzle anti-clogging structure according to claim 1, characterized in that: The fixing component (5) includes a mounting plate (23), which is located on the back of the main body (1), and the back of the mounting plate (23) is provided with a plurality of mounting holes (24).