A 3D printer's outfeed assembly

By employing an active spiral feeding system and segmented heating design, the problem of easy clogging in the output components of traditional 3D printers has been solved, achieving stable material supply and convenient nozzle maintenance, thereby improving printing efficiency and quality.

CN224588622UActive Publication Date: 2026-08-04JIANGSU INITIAL 3D TECH CO LTD
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Patent Information

Application Number
CN202521599648.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-30
Publication Date
2026-08-04
Estimated Expiration
2035-07-30

AI Technical Summary

Technical Problem

Traditional 3D printers' ejection components are prone to material solidification due to uneven temperature or excessive dwell time, leading to poor ejection or blockages, and making cleaning and replacement inconvenient.

Method used

It adopts an active spiral conveying design, using a micro motor to drive the spiral conveying column to force the material to be pushed. Combined with the upper electric heating ring and the bottom electric heating plate for segmented heating, it is equipped with dual temperature sensors to monitor and feed back data in real time. The modular design of the nozzle makes it easy to disassemble and clean.

Benefits of technology

It achieves continuous and stable material supply, avoids clogging, ensures quick cleaning and replacement of printheads, and improves printing efficiency and quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of discharge assemblies of 3D printer, including fixed mounting disc, conveying heating frame, electric heating ring, spray head, second temperature sensor, fixed mounting threaded column, conveying connecting pipe, butt joint clamping plate and butt joint pipe, the conveying connecting pipe is fixedly installed in the upper end side of the conveying heating frame, the second temperature sensor is fixedly installed in the upper end other side of the conveying heating frame.The device uses initiative spiral feeding, miniature motor drives spiral feeding column to force push material, break through the limitation of traditional gravity feeding, eliminate material stagnation, so that feeding is continuous and stable, and residual material blockage is not easy to exist inside, upper electric heating ring preheats material, prevents initial solidification, bottom electric heating plate maintains molten state, eliminates temperature dead angle, double temperature sensor monitors and feeds back data in real time, realizes closed-loop temperature control, spray head quick-release maintenance design modular assembly, spray head and butt joint pipe are inserted through butt joint clamping plate, and only need to loosen fixed mounting threaded column to be disassembled.
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Description

Technical Field

[0001] This utility model relates to the field of 3D printer technology, specifically to a material output component for a 3D printer. Background Technology

[0002] In the 3D printing process, the stability of the ejector assembly directly affects the printing quality and efficiency. Traditional 3D printer ejector assemblies have the following problems: material solidification and agglomeration. During the printing process, materials such as polymer materials and metal powders are prone to solidification inside the nozzle due to uneven temperature or excessive residence time, resulting in poor ejection or even blockage. Cleaning and replacing the nozzle after blockage is inconvenient, making the ejector assembly of the 3D printer inconvenient to use. Therefore, a new ejector assembly for 3D printers is needed to solve the above-mentioned problems. Utility Model Content

[0003] The purpose of this invention is to provide a material output component for a 3D printer to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a material output component for a 3D printer, comprising a fixed mounting plate, a conveying heating frame, an electric heating ring, a nozzle, a second temperature sensor, a fixed mounting threaded post, a conveying connecting pipe, a docking clamp, and a docking pipe. The conveying connecting pipe is fixedly installed on one side of the upper end of the conveying heating frame, the second temperature sensor is fixedly installed on the other side of the upper end of the conveying heating frame, the electric heating ring is uniformly fixedly installed on the upper part of the conveying heating frame, the docking clamp is inserted into the bottom end of the conveying heating frame, the fixed mounting threaded post is uniformly threaded between the bottom end of the conveying heating frame and the docking clamp, the nozzle is fixedly connected to the middle of the bottom end of the docking clamp, the docking pipe is fixedly connected to the middle of the docking clamp, the docking pipe is sealed and inserted into the material feeding hole inside the conveying heating frame, and the fixed mounting plate is fixedly installed on the upper end of the conveying heating frame.

[0005] Preferably, a micro motor is fixedly installed at the upper end of the conveying heating frame, and the upper end of the spiral conveying column, which is rotatably snapped inside the conveying heating frame, is fixedly connected to the middle of the bottom end of the micro motor.

[0006] Preferably, an electric heating plate is uniformly fixedly installed at the bottom of the conveying heating frame, and a first temperature sensor is uniformly fixedly installed at the bottom of the conveying heating frame.

[0007] Preferably, electric heating wires are uniformly fixed inside the electric heating ring and the electric heating plate.

[0008] Preferably, limiting baffles are fixedly installed on both sides of the bottom end of the docking plate, and the upper end surface of the limiting baffles is in contact with the bottom end surface of the conveying heating frame.

[0009] Preferably, a sealing rubber ring is extruded between the connecting pipe and the material conveying hole inside the conveying heating frame.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This invention employs an active spiral conveyor system, where a micro-motor drives the spiral conveyor column to forcibly push materials, overcoming the limitations of traditional gravity feeding. This eliminates material stagnation, ensuring continuous and stable feeding and preventing internal blockages caused by residual material. An upper electric heating ring preheats the material to prevent initial solidification, while a bottom electric heating plate maintains the material in a molten state, eliminating temperature dead zones. Dual temperature sensors monitor and provide real-time data feedback, achieving closed-loop temperature control. The nozzle features a modular assembly design for quick-release maintenance; the nozzle and connecting pipe are connected via a mating clamp, allowing for easy disassembly by simply loosening the fixing threaded post, reducing cleaning and replacement time. A limiting baffle ensures precise installation alignment, and a high-pressure seal is provided by a sealing rubber ring at the connection between the connecting pipe and the conveying hole to prevent material leakage. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present utility model;

[0013] Figure 2 This is a schematic diagram of the bottom structure of the main body in this utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the bottom of the main body in this utility model.

[0015] In the diagram: 1-Miniature motor, 2-Fixed mounting plate, 3-Conveying heating frame, 4-Electric heating ring, 5-Electric heating plate, 6-First temperature sensor, 7-Nozzle, 8-Second temperature sensor, 9-Fixed mounting threaded post, 10-Conveying connecting pipe, 11-Limiting baffle, 12-Dating plate, 13-Dating pipe, 14-Sealing rubber ring. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-3This utility model provides an embodiment of a 3D printer's output assembly, comprising a fixed mounting plate 2, a conveying heating frame 3, an electric heating ring 4, a nozzle 7, a second temperature sensor 8, a fixed mounting threaded post 9, a conveying connecting pipe 10, a docking plate 12, and a docking pipe 13. The conveying connecting pipe 10 is fixedly installed on one side of the upper end of the conveying heating frame 3, the second temperature sensor 8 is fixedly installed on the other side of the upper end of the conveying heating frame 3, the electric heating ring 4 is uniformly fixedly installed on the upper part of the conveying heating frame 3, the docking plate 12 is inserted into the bottom end of the conveying heating frame 3, the fixed mounting threaded post 9 is uniformly threaded between the bottom end of the conveying heating frame 3 and the docking plate 12, the nozzle 7 is fixedly connected to the middle of the bottom end of the docking plate 12, the docking pipe 13 is fixedly connected to the middle of the docking plate 12, and the docking pipe 13 is sealed and inserted into the material conveying hole inside the conveying heating frame 3. The fixed mounting plate 2 is fixedly installed on the upper end of the conveying heating frame 3.

[0018] A micro motor 1 is fixedly installed at the upper end of the conveying heating frame 3, and the upper end of the spiral conveying column inside the conveying heating frame 3 is fixedly connected to the middle of the bottom end of the micro motor 1.

[0019] An electric heating plate 5 is uniformly fixedly installed at the bottom of the conveying heating frame 3, and a first temperature sensor 6 is uniformly fixedly installed at the bottom of the conveying heating frame 3.

[0020] Electric heating wires are evenly fixed inside the electric heating ring 4 and the electric heating plate 5, which makes the heating sufficient and rapid.

[0021] Limiting baffles 11 are fixedly installed on both sides of the bottom end of the docking plate 12, and the upper end surface of the limiting baffles 11 is in contact with the bottom end surface of the conveying heating frame 3 to achieve the function of limiting and positioning.

[0022] A sealing rubber ring 14 is squeezed between the connecting pipe 13 and the material conveying hole inside the conveying heating frame 3, so that a full multi-insertion sealing effect is achieved after squeezing.

[0023] Working principle: Material enters the inner cavity of the conveying heating frame 3 through the conveying connecting pipe 10. The micro motor 1 drives the internal spiral conveying column to rotate, actively pushing the material downward to avoid material stagnation. This allows for segmented and precise heating. Electric heating rings 4 are located at the top, and electric heating plates 5 are located at the bottom, both with built-in heating wires, providing three-dimensional heating of the material. The upper heating rings 4 preheat the material to prevent solidification, while the bottom heating plates 5 ensure the material remains molten before reaching the nozzle. The first temperature sensor 6 and the second temperature sensor 8 provide real-time data feedback, achieving closed-loop temperature control. The spiral conveying column forces the material forward, avoiding the clogging risk of traditional gravity feeding. Heating eliminates temperature dead zones and prevents local solidification of materials. The nozzle assembly is inserted into the bottom of the conveying heating frame 3 via the docking plate 12. The fixed installation threaded post 9 locks the docking plate 12 to ensure a stable connection. When cleaning or replacement is required, the nozzle module, including the nozzle 7 and the connecting pipe 13, can be removed by loosening the fixed installation threaded post 9, making it easy to clean and replace the nozzle 7. The connecting pipe 13 is inserted into the feed hole of the conveying heating frame 3, and the sealing rubber ring 14 prevents material leakage. The limiting baffle 11 ensures that the nozzle module is installed in place and fits tightly against the bottom surface of the heating frame 3. It also allows the fixed installation threaded post 9 to be precisely screwed and aligned for fixed locking.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A material output assembly for a 3D printer, comprising a fixed mounting plate (2), a conveying heating frame (3), an electric heating ring (4), a nozzle (7), a second temperature sensor (8), a fixed mounting threaded post (9), a conveying connecting pipe (10), a docking clamp (12), and a docking pipe (13), characterized in that: The conveying connecting pipe (10) is fixedly installed on one side of the upper end of the conveying heating frame (3), the second temperature sensor (8) is fixedly installed on the other side of the upper end of the conveying heating frame (3), the electric heating ring (4) is evenly fixedly installed on the upper part of the conveying heating frame (3), the docking plate (12) is inserted into the bottom end of the conveying heating frame (3), the fixed installation threaded column (9) is evenly threaded between the bottom end of the conveying heating frame (3) and the docking plate (12), the nozzle (7) is fixedly connected to the middle of the bottom end of the docking plate (12), the connecting pipe (13) is fixedly connected to the middle of the docking plate (12), the connecting pipe (13) is sealed and inserted into the conveying hole inside the conveying heating frame (3), and the fixed installation plate (2) is fixedly installed on the upper end of the conveying heating frame (3).

2. The ejection assembly of a 3D printer according to claim 1, characterized in that: A micro motor (1) is fixedly installed at the upper end of the conveying heating frame (3), and the upper end of the spiral conveying column inside the conveying heating frame (3) is fixedly connected to the middle of the bottom end of the micro motor (1).

3. The ejection assembly of a 3D printer according to claim 2, characterized in that: An electric heating plate (5) is uniformly fixedly installed at the bottom of the conveying heating frame (3), and a first temperature sensor (6) is uniformly fixedly installed at the bottom of the conveying heating frame (3).

4. The ejection assembly of a 3D printer according to claim 3, characterized in that: Electric heating wires are uniformly fixed inside the electric heating ring (4) and the electric heating plate (5).

5. The ejector assembly of a 3D printer according to claim 4, characterized in that: Limiting baffles (11) are fixedly installed on both sides of the bottom end of the docking plate (12), and the upper end surface of the limiting baffles (11) is in contact with the bottom end surface of the conveying heating frame (3).

6. The ejection assembly of a 3D printer according to claim 5, characterized in that: A sealing rubber ring (14) is squeezed between the connecting pipe (13) and the material conveying hole inside the conveying heating frame (3).