A consumable cleaning device for 3D printing

By designing a filament cleaning device for 3D printing, which automatically cleans impurities from the filament surface using a scraper ring and sponge pad, the problem of clogging caused by impurities entering the nozzle is solved, thus improving print quality and consistency.

CN224276230UActive Publication Date: 2026-05-26GUANGDONG DAKUN ADDITIVE MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG DAKUN ADDITIVE MFG CO LTD
Filing Date
2025-04-29
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing 3D printers lack effective consumable removal devices during use, causing impurities to enter the nozzle or extruder, resulting in blockages and affecting the uniform extrusion of materials and printing quality.

Method used

Design a consumable cleaning device for 3D printing, including components such as a mounting frame, a rotating shaft, rollers, a scraper ring, and a sponge pad, which automatically cleans the consumable by pulling it, removing surface impurities and collecting them into a collection frame.

Benefits of technology

It significantly reduces the impact of impurities on the printing process, avoids nozzle clogging, ensures uniform material extrusion, improves interlayer bonding strength and surface finish, and enhances the overall quality and consistency of printed parts.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of 3D printing technology, and more particularly to a filament cleaning device for 3D printing. The device includes a mounting frame, rotating shafts, rollers, a connecting frame, and a reciprocating lead screw. The mounting frame has rotating shafts symmetrically connected to it, with the upper end of the right-side shaft penetrating the mounting frame. Rollers are connected to both rotating shafts. The mounting frame is connected to the connecting frame, and a reciprocating lead screw is rotatably connected inside the connecting frame. By pulling the 3D printing filament, the scraper ring and sponge pad move, effectively cleaning the filament before it enters the 3D printer. This significantly reduces the impact of dust, fibers, and other minute impurities on the printing process. This not only avoids nozzle clogging caused by impurities but also ensures uniform material extrusion, thereby improving interlayer bonding strength, surface finish, and reducing defects such as voids.
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Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, and in particular to a consumable cleaning device for 3D printing. Background Technology

[0002] 3D printing filaments refer to the raw materials used to build objects during the 3D printing process. These materials are stacked layer by layer by a 3D printer according to a digital model to form a physical object. Different 3D printing technologies and application scenarios require different types of filaments.

[0003] When using existing 3D printers, the 3D printing filament is usually directly connected to the printer. However, in this process, there is a lack of effective components for removing impurities from the 3D printing filament. In fact, during transportation, storage, and daily use, 3D printing filament may accumulate dust, fibers, and other tiny impurities. If these impurities are not removed, they may enter the nozzle or extruder, causing blockages, affecting the uniform extrusion of the material, resulting in poor interlayer bonding, rough surfaces, or even voids, which seriously affects the quality of the final printed parts.

[0004] To address the existing problems, there is a need to provide a consumable removal device for 3D printing. Utility Model Content

[0005] In order to overcome the drawback that impurities entering the nozzle without being cleaned will cause blockage, this utility model provides a consumable impurity removal device for 3D printing.

[0006] The technical implementation scheme of this utility model is as follows: A consumable cleaning device for 3D printing includes a mounting frame, a rotating shaft, rollers, a connecting frame, a reciprocating screw, a guide rod, a moving plate, a connecting plate, fixing screws, a scraper ring, a connecting ring, a sponge pad, a first bevel gear, and a second bevel gear. The mounting frame is symmetrically connected to the rotating shaft on both sides. The upper end of the rotating shaft on the right side passes through the mounting frame. Rollers are connected to both rotating shafts. A connecting frame is connected to the mounting frame. A reciprocating screw is symmetrically connected to the connecting frame. A guide rod is connected inside the connecting frame. A moving plate is threaded onto the reciprocating screw. The moving plate slides with the guide rod. A connecting plate is placed on the front side of the moving plate. Fixing screws are symmetrically threaded onto the moving plate. The connecting plate is also threaded with two fixing screws. A scraper ring is connected inside the connecting plate. A connecting ring is connected inside the connecting plate. A sponge pad is connected inside the connecting ring. The front end of the reciprocating screw is connected to the first bevel gear. The upper end of the rotating shaft on the right side is connected to the second bevel gear. The first and second bevel gears mesh with each other.

[0007] More preferably, it also includes a connecting frame and a collection frame, with the connecting frame connected to the rear side of the mounting frame and the collection frame placed on the connecting frame.

[0008] More preferably, it also includes a first mounting plate and a guide cylinder, with the first mounting plate installed on the rear side of the connecting frame and the guide cylinder installed inside the first mounting plate.

[0009] More preferably, it also includes a first guide ring, which is connected to the rear side of the guide cylinder.

[0010] More preferably, it also includes a second guide ring, which is connected to the rear side of the connecting ring.

[0011] More preferably, it also includes a second mounting plate, with the second mounting plate installed on the left and right sides of the mounting frame.

[0012] The beneficial effects of this invention are as follows: By pulling the 3D printing filament, the scraper ring and sponge pad are moved, which can effectively clean the filament before it enters the 3D printer. This can significantly reduce the impact of dust, fibers and other tiny impurities on the printing process. This not only avoids nozzle clogging caused by impurities, but also ensures uniform material extrusion, thereby improving interlayer bonding strength, improving surface smoothness, reducing defects such as voids, and ultimately greatly improving the overall quality and consistency of the printed parts. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is an exploded view of the connecting frame and the collection frame of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the connecting frame, reciprocating lead screw, and guide rod of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the movable plate, connecting plate, screws, and other components of this utility model.

[0017] Figure 5 This is a cross-sectional view of the connecting plate, scraper ring, and connecting ring of this utility model.

[0018] The components in the attached diagram are labeled as follows: 1. Mounting frame, 2. Rotating shaft, 3. Roller, 4. Connecting frame, 5. Reciprocating lead screw, 6. Guide rod, 7. Moving plate, 8. Connecting plate, 9. Fixing screw, 10. Scraper ring, 11. Connecting ring, 12. Sponge pad, 13. First bevel gear, 14. Second bevel gear, 15. Connecting frame, 16. Collection frame, 17. First mounting plate, 18. Guide cylinder, 19. First guide ring, 20. Second guide ring, 21. Second mounting plate. Detailed Implementation

[0019] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Example: A consumable cleaning device for 3D printing, such as... Figures 1-5 As shown, the system includes a mounting frame 1, a rotating shaft 2, rollers 3, a connecting frame 4, a reciprocating lead screw 5, a guide rod 6, a moving plate 7, a connecting plate 8, a fixing screw 9, a scraper ring 10, a connecting ring 11, a sponge pad 12, a first bevel gear 13, a second bevel gear 14, a connecting bracket 15, a collecting frame 16, a first mounting plate 17, a guide cylinder 18, a first guide ring 19, a second guide ring 20, and a second mounting plate 21. The mounting frame 1 is symmetrically connected to the rotating shaft 2, with the rotating shaft on the right side... 2. The upper end of the mounting frame 1 is pierced by two rotating shafts 2, each connected to a roller 3, which can rotate as the 3D printing filament is pulled. A connecting frame 4 is connected to the mounting frame 1. A reciprocating screw 5 is rotatably connected inside the connecting frame 4. A guide rod 6 is connected inside the connecting frame 4. A moving plate 7 is threadedly connected to the reciprocating screw 5. The moving plate 7 slides with the guide rod 6. A connecting plate 8 is placed on the front side of the moving plate 7. Fixing screws 9 are symmetrically threaded on the left and right sides of the moving plate 7. The connecting plate 8 is also connected to two... A fixing screw 9 is threaded together. A scraper ring 10 is connected inside the connecting plate 8 for cleaning the surface of the 3D printing consumables. A connecting ring 11 is connected inside the connecting plate 8, and a sponge pad 12 is connected inside the connecting ring 11 for wiping and cleaning the surface of the 3D printing consumables. A first bevel gear 13 is connected to the front end of the reciprocating screw 5, and a second bevel gear 14 is connected to the upper end of the rotating shaft 2 on the right side. The first bevel gear 13 and the second bevel gear 14 mesh with each other. A connecting frame 15 is connected to the rear side of the mounting frame 1, and a collection frame 16 is placed on the connecting frame 15 for collecting impurities. A first mounting plate 17 is installed on the rear side of the connecting frame 4, and a guide cylinder 18 is installed inside the first mounting plate 17. A first guide ring 19 is connected to the rear side of the guide cylinder 18 to guide the 3D printing consumables. A second guide ring 20 is connected to the rear side of the connecting ring 11 to guide the 3D printing consumables. A second mounting plate 21 is installed on the left and right sides of the mounting frame 1 to facilitate the installation of this device.

[0021] When 3D printing filament needs impurity removal, the user first installs the device in a suitable position using the second mounting plate 21. After installation, the user places the appropriate connecting plate 8 in front of the moving plate 7 and secures it to the moving plate 7 with two fixing screws 9, completing the installation of the connecting plate 8. Next, the user pulls the 3D printing filament into the guide cylinder 18, then from the guide cylinder 18 between the two rollers 3, passing it through the connecting ring 11 and the scraper ring 10. Finally, the filament is pulled onto the 3D printer and connected. When the 3D printer is started, it pulls the 3D printing filament. During this process, the movement of the 3D printing filament causes the two rollers 3 to rotate, thus... The rotation of the two rotating shafts 2 drives the second bevel gear 14 to rotate, which in turn drives the first bevel gear 13 to rotate. The first bevel gear 13 then causes the reciprocating screw 5 to rotate. As the reciprocating screw 5 rotates, the moving plate 7 and all its connected components will reciprocate along the guide rod 6. The connecting plate 8 moves with the moving plate 7, causing the scraper ring 10, connecting ring 11, and sponge pad 12 to move together. During the movement, the sponge pad 12 cleans and wipes the surface of the 3D printing consumables, while the scraper ring 10 scrapes the surface of the 3D printing consumables to remove impurities. These impurities will fall into the collection frame 16 and be collected by the collection frame 16. This achieves automatic removal and collection of impurities from the 3D printing consumables.

[0022] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the present invention and should not be construed as limiting the scope of protection of the present invention in any way. Based on this explanation, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A consumable decontamination apparatus for 3D printing, characterized in that, The assembly includes a mounting frame (1), a rotating shaft (2), rollers (3), a connecting frame (4), a reciprocating screw (5), a guide rod (6), a moving plate (7), a connecting plate (8), a fixing screw (9), a scraper ring (10), a connecting ring (11), a sponge pad (12), a first bevel gear (13), and a second bevel gear (14). The mounting frame (1) is symmetrically connected to the bottom and top of the inner wall of the mounting frame (1) via a rotating shaft (2). The upper end of the right-side rotating shaft (2) passes through the mounting frame (1). Rollers (3) are connected to the upper parts of both rotating shafts (2). A connecting frame (4) is fixedly connected to the outer side of the mounting frame (1). A reciprocating screw (5) is rotatably connected to the right side of the front and rear inner walls of the connecting frame (4). A guide rod is fixedly connected to the left side of the front and rear inner walls of the connecting frame (4). 6) A movable plate (7) is threadedly connected to the reciprocating screw (5). The movable plate (7) slides with the guide rod (6). A connecting plate (8) is placed on the front side of the movable plate (7). Fixed screws (9) are symmetrically threaded on the movable plate (7). The connecting plate (8) is also threaded with two fixed screws (9). A scraper ring (10) is fixedly connected to the front side inside the connecting plate (8). A connecting ring (11) is fixedly connected to the rear side inside the connecting plate (8). A sponge pad (12) is connected to the inner ring of the connecting ring (11). A first bevel gear (13) is fixedly connected to the front end of the reciprocating screw (5). A second bevel gear (14) is fixedly connected to the upper end of the right-side rotating shaft (2). The first bevel gear (13) and the second bevel gear (14) mesh with each other.

2. A consumable cleaning device for 3D printing according to claim 1, characterized in that, It also includes a connecting frame (15) and a collection box (16). The connecting frame (15) is fixedly connected to the rear side of the mounting frame (1), and the collection box (16) is placed on the connecting frame (15).

3. A consumable cleaning device for 3D printing according to claim 2, characterized in that, It also includes a first mounting plate (17) and a guide cylinder (18). The first mounting plate (17) is installed in the middle of the rear side of the connecting frame (4), and the guide cylinder (18) is installed inside the first mounting plate (17).

4. A consumable cleaning device for 3D printing according to claim 3, characterized in that, It also includes a first guide ring (19), which is connected to the rear side of the guide cylinder (18).

5. A consumable cleaning device for 3D printing according to claim 4, characterized in that, It also includes a second guide ring (20), which is connected to the rear side of the connecting ring (11).

6. A consumable cleaning device for 3D printing according to claim 5, characterized in that, It also includes a second mounting plate (21), which is installed on the left and right sides of the mounting frame (1).