A 3D printer nozzle spiral scraping and cleaning device

Abstract

The application is a 3D printer nozzle spiral scraping and cleaning device, comprising a mounting box, a water box, a pressurizing assembly, a heating assembly, a multi-stage adjusting arm, a fixing frame, a driven rotating shaft, a driven rotating fan, a scraping net, a ball head, a damping block and a collection disc; the water box supplies water for the heating assembly to generate water vapor, and the pressurizing assembly sends the steam to the hot air duct at the end of the multi-stage adjusting arm; the steam flow drives the driven rotating fan to rotate, which drives the spiral scraping net to rotate synchronously, and the nozzle sidewall is scraped in a spiral manner; the steam also softens the residual dirt by heating, which improves the cleaning effect; the collection disc is connected with the ball head through the damping block to form a spherical hinge connection, which can be self-adapted at various angles, and the internal accommodation cavity accommodates the scraping waste. The application realizes the coupling of steam power and cleaning function, automatic rotation scraping, unified collection of waste and all-around attitude adaptation, solves the problems of low efficiency, easy damage to the nozzle and incomplete cleaning of traditional manual cleaning, and is suitable for the automatic cleaning and maintenance of various 3D printer nozzles.

Description

Technical Field

[0001] This invention relates to the field of 3D printer maintenance equipment technology, specifically to a spiral scraping device for 3D printer nozzles. Background Technology

[0002] During the printing process, printing materials often remain at the nozzle of a 3D printer, especially some high-viscosity consumables such as PLA and ABS. If these residual materials are not cleaned in time, they will gradually accumulate and solidify, which will not only affect the accuracy and quality of subsequent printed products, but may even clog the nozzle, leading to printing failure, increasing equipment maintenance costs and downtime. At the same time, they are also prone to dust accumulation when exposed to the outside.

[0003] Traditional cleaning methods often rely on manual wiping or scraping with a simple scraper. This method is not only inefficient and ineffective, but it is also easy to damage the nozzle due to improper operation. In addition, manual cleaning is difficult to guarantee thoroughness and safety when the nozzle is at high temperature.

[0004] Therefore, developing a device that can automatically, efficiently, and safely clean residual dirt from 3D printer nozzles is of great significance for improving 3D printing and maintenance efficiency, as well as product quality. Summary of the Invention

[0005] The purpose of this invention is to overcome the problems existing in the prior art and provide a steam-driven, spiral scraping, automatic collection, and omnidirectional adaptive spiral scraping device for 3D printer nozzles.

[0006] To achieve the above-mentioned technical objectives and effects, the present invention is implemented through the following technical solution: A spiral scraping device for a 3D printer nozzle includes a 3D printer and a print head mounted thereon. The print head has a scraping mesh on its sidewall for contacting the sidewall of the print head and scraping off any residual filament on its sidewall surface. One end of the scraping mesh is fixed to a driven rotating shaft, and a corresponding rotation drive device is connected to the driven rotating shaft, so that the scraping mesh rotates and scrapes the sidewall of the print head.

[0007] Furthermore, the driving device includes a driven fan, which is fixed to a driven shaft. The driven fan is opposite to the air outlet of the steam device, and the steam airflow drives the driven fan, driven shaft and scraper screen to rotate. The rotation axis of the scraper screen coincides with that of the driven fan, so that the steam airflow blows directly onto the print head to soften the residual dirt on the print head and facilitate scraping.

[0008] Furthermore, the steam device includes a water box, a pressurizing component, and a heating component. The water box is connected to the heating component via a water inlet pipe for supplying water for heating. The heating component is connected to the pressurizing component. The pressurizing component is connected to the hot air passage inside the multi-stage regulating arm via an air outlet pipe. The end of the multi-stage regulating arm is provided with an air outlet opposite to the driven rotating fan for spraying pressurized steam.

[0009] Furthermore, the end of the multi-stage adjusting arm is provided with a ball head, the inside of which is provided with a hot air passage and an air outlet is formed at one end. A collection plate is movably connected to the outside of the ball head, and a fixed frame is fixedly connected to the collection plate. The driven shaft is rotatably connected to the fixed frame to provide rotational support.

[0010] Furthermore, the upper surface of the collection tray is provided with a receiving cavity for accommodating the scraped-off waste material.

[0011] Furthermore, a damping block is attached to the lower surface of the collection tray, and the damping block is pressed against the ball head to adjust the tilt angle of the collection tray according to the specific position and angle of the printing nozzle, so as to ensure that the waste material falls accurately into the receiving cavity.

[0012] Furthermore, the front end of the multi-stage adjusting arm, as well as the water box, pressurizing component, and heating component, are housed in the mounting box.

[0013] Furthermore, the multi-stage adjusting arm consists of a first-stage adjusting arm, a second-stage adjusting arm, and a third-stage adjusting arm connected in sequence, and a locking button is provided between adjacent adjusting arms for adjusting and locking the angle and position of the adjusting arm.

[0014] Furthermore, the scraping mesh is conical in shape and is formed by spirally winding elastic steel strips with spiral gaps between them, which are used to hook and peel off residual consumables on the print head, so that the scraping mesh contacts the side wall of the print head during rotation to perform spiral scraping.

[0015] Furthermore, the edge of the collection tray is made of a rubber material with elastic deformation, so that the waste generated during scraping can fall into the receiving cavity.

[0016] The beneficial effects of this invention are: 1. Dual function of steam coupling: Water vapor serves as both the power to drive rotation and to heat and soften residual dirt. The ingenious design makes it highly practical and significantly improves cleaning efficiency. 2. Spiral elastic scraping: The conical spiral steel strip fits the nozzle without damaging it and cleans and peels off more thoroughly, especially suitable for high viscosity consumables; 3. 360° adaptive angle: The ball head and damping block enable all-round posture adjustment of the collection tray and the scraping screen, adapting to different nozzle models; 4. Automatic collection and leak prevention: The flexible edge collection tray prevents waste from contaminating the equipment, making maintenance cleaner and safer; 5. Fully automatic operation: No manual hand operation is required, reducing the risk of high temperature burns and nozzle damage. Attached Figure Description

[0017] Figure 1 This is a perspective view of the device of the present invention in its working state; Figure 2 for Figure 1 Enlarged view of a portion of point A in the middle; Figure 3 This is the front view of the device of the present invention after the 3D printer has been removed; Figure 4 for Figure 3 Sectional view at point BB; Figure 5 for Figure 4 Enlarged view of a section at point C; Figure 6 for Figure 4 Axonometric drawing; Figure 7 for Figure 6 Enlarged view of section D; Figure 8 This is a perspective view of the device of the present invention.

[0018] The labels in the diagram are as follows: 1. 3D printer; 12. Print head; 2. Mounting box; 21. Primary adjusting arm; 22. Secondary adjusting arm; 23. Tertiary adjusting arm; 24. Locking button; 3. Hot air duct; 4. Collection tray; 41. Receiving cavity; 42. Damping block; 5. Ball head; 6. Water tank; 61. Water inlet pipe; 7. Pressurization assembly; 8. Heating assembly; 9. Scraper screen; 91. Driven rotating shaft; 92. Driven rotating fan; 101. Fixing frame; 102. Air outlet pipe. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] like Figure 1-8As shown, the 3D printer nozzle spiral scraping device of the present invention comprises a 3D printer 1, a mounting box 2, a water tank 6, a pressurizing component 7, a heating component 8, a primary adjusting arm 21, a secondary adjusting arm 22, a tertiary adjusting arm 23, and a fixing frame 101 as its main components. The water tank 6, pressurizing component 7, heating component 8, and primary adjusting arm 21 are all installed within the mounting box 2. The water tank 6 supplies water to the heating component 8, while the pressurizing component 7 delivers water vapor from the heating component 8 to the end of the tertiary adjusting arm 23. A locking button 24 is provided at the connection point of the primary adjusting arm 21, the secondary adjusting arm 22, and the tertiary adjusting arm 23, thereby limiting the angle between them. The fixed frame 101 is a triangular fixed frame structure. The fixed frame 101 is provided with a driven rotating shaft 91, a scraping screen 9, and a driven rotating fan 92. The scraping screen 9 and the driven rotating fan 92 are respectively fixedly connected to the two ends of the driven rotating shaft 91, forming a coincident rotation axis. The driven rotating shaft 91 is inserted in the middle of the fixed frame 101 and can rotate. The surface of the driven rotating fan 92 is opposite to the end of the three-stage adjusting arm 23. The end of the three-stage adjusting arm 23 is provided with a ball head 5 and a movably connected collection tray 4. The collection tray 4 has a cavity 41 for accommodating waste. The bottom of the collection tray 4 is provided with a damping block 42. The damping block 42 is pressed on the ball head 5 to realize the adjustment of the angle of the collection tray 4. The fixed frame 101 is fixedly connected in the collection tray 4.

[0021] In this embodiment, the edge of the collection tray 4 is made of elastically deformable rubber material, and the waste generated from scraping falls into the receiving cavity 41.

[0022] In this embodiment, as Figure 8 As shown, the bottom of the water box 6 is provided with a water inlet pipe 61, through which the water box 6 is connected to the heating component 8.

[0023] In this embodiment, as Figure 8 As shown, the pressurization component 7 is provided with an air outlet pipe 102, through which the end of the three-stage adjusting arm 23 is connected to the pressurization component 7.

[0024] In this embodiment, as Figure 5 and Figure 7 As shown, the end of the three-stage adjusting arm 23 is provided with a hot air passage 3, which passes through the ball head 5 and is connected to the air outlet pipe 102.

[0025] In this embodiment, as Figure 5 and Figure 7 As shown, the scraping mesh 9 is conical in shape and is formed by spirally winding a flexible steel strip, so that the scraping mesh 9 can contact the side wall of the print head 12 during rotation, that is, to spirally scrape off the consumables remaining on the side wall surface of the print head 12.

[0026] In this embodiment, the driven fan 92 has three blades, which drive the driven shaft 91 to rotate under the steam flow of the hot air duct 3.

[0027] In this embodiment, the ball head 5 is spherical, thereby causing the collection tray 4 to tilt at an angle of 360°.

[0028] In use, the angle and position relationship between the three are fixed by cooperating the first-level adjusting arm 21, the second-level adjusting arm 22 and the third-level adjusting arm 23 and tightening the locking button 24. The collection tray 4 is then adjusted to be directly below the print head 12, so that the scraping screen 9 in the collection tray 4 is fitted onto the print head 12.

[0029] A suitable amount of water is injected into the water box 6. Under the action of gravity, the water in the water box 6 flows into the heating component 8 through the water inlet pipe 61. The heating component 8 heats the water to generate water vapor. Under the action of the pressurizing component 7, the generated water vapor is transported to the hot air channel 3 at the end of the three-stage regulating arm 23 through the air outlet pipe 102.

[0030] When water vapor is ejected from the hot air duct 3, its airflow impacts the opposite driven fan 92, causing the driven fan 92 to rotate, which in turn drives the scraper screen 9 to rotate synchronously through the driven shaft 91.

[0031] At this time, since the scraping mesh 9 is conical and made of elastic steel strips spirally wound, during the rotation, its spiral steel strips can contact the side wall of the print head 12 and spirally scrape off the consumables remaining on the side wall surface of the print head 12. The spiral gap between the steel strips can hook and peel off the dirt remaining on the side wall surface of the print head 12.

[0032] The scraped-off waste falls into the receiving cavity 41 inside the collection tray 4 under the action of gravity.

[0033] During this process, the damping block 42 at the bottom of the collection tray 4 is pressed against the ball head 5, and the tilt angle of the collection tray 4 can be adjusted 360° according to the specific position and angle of the printing nozzle 12 to ensure that the waste material falls accurately into the receiving cavity 41.

[0034] The elastically deformable rubber material on the edge of the collection tray 4 can adapt to obstacles on the edge of the print head 12 and prevent waste from leaking out.

[0035] Meanwhile, the steam in the hot air duct 3 is ejected from the edge of the fixture 101 to clean and soften the residual dirt on the side wall surface of the print head 12, thus facilitating further peeling.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A spiral scraping device for a 3D printer nozzle, comprising a 3D printer (1) and a printing nozzle (12) mounted thereon, characterized in that, The side wall of the print head (12) is provided with a scraping mesh (9) for contacting the side wall of the print head (12) and scraping off the consumables remaining on the side wall surface. One end of the scraping mesh (9) is fixed to the driven rotating shaft (91), and a corresponding rotation drive device is connected to the driven rotating shaft (91) so that the scraping mesh (9) rotates and scrapes the side wall of the print head (12).

2. The 3D printer nozzle spiral scraping device according to claim 1, characterized in that, The driving device includes a driven fan (92), which is fixed on the driven shaft (91). The driven fan (92) is opposite to the air outlet of the steam device. The steam airflow drives the driven fan (92), the driven shaft (91) and the scraper screen (9) to rotate. The rotation axis of the scraper screen (9) coincides with that of the driven fan (92), so that the steam airflow blows directly onto the print head (12) to soften the residual dirt on the print head (12) with heat, making it easier to scrape and clean.

3. The 3D printer nozzle spiral scraping device according to claim 2, characterized in that, The steam device includes a water box (6), a pressurizing component (7), and a heating component (8). The water box (6) is connected to the heating component (8) through a water inlet pipe (61) for supplying water for heating. The heating component (8) is connected to the pressurizing component (7). The pressurizing component (7) is connected to the hot air passage (3) inside the multi-stage regulating arm through an air outlet pipe (102). The end of the multi-stage regulating arm is provided with an air outlet opposite to the driven rotating fan (92) for spraying out pressurized steam.

4. The 3D printer nozzle spiral scraping device according to claim 3, characterized in that, The end of the multi-stage adjusting arm is provided with a ball head (5), the inside of the ball head (5) is provided with a hot air passage (3) that runs through it, and an air outlet is formed at one end of it. A collection plate (4) is movably connected to the outside of the ball head (5), and a fixed frame (101) is fixedly connected to the collection plate (4). The driven rotating shaft (91) is rotatably connected to the fixed frame (101) to provide rotational support.

5. The 3D printer nozzle spiral scraping device according to claim 4, characterized in that, The upper surface of the collection tray (4) is provided with a receiving cavity (41) for receiving the scraped waste material.

6. The 3D printer nozzle spiral scraping device according to claim 5, characterized in that, The lower surface of the collection tray (4) is fitted with a damping block (42), and the damping block (42) is pressed against the ball head (5) to adjust the tilt angle of the collection tray (4) 360° according to the specific position and angle of the printing nozzle (12) to ensure that the waste material falls accurately into the receiving cavity (41).

7. The 3D printer nozzle spiral scraping device according to claim 4 or 6, characterized in that, The front end of the multi-stage regulating arm, as well as the water box (6), pressurizing component (7) and heating component (8), are disposed in the mounting box (2).

8. The 3D printer nozzle spiral scraping device according to claim 7, characterized in that, The multi-stage adjusting arm consists of a first-stage adjusting arm (21), a second-stage adjusting arm (22), and a third-stage adjusting arm (23) connected in sequence, and a locking button (24) is provided between adjacent adjusting arms for adjusting and locking the angle and position of the adjusting arm.

9. The 3D printer nozzle spiral scraping device according to claim 8, characterized in that, The scraping mesh (9) is conical in shape and is formed by spirally winding elastic steel strips. The elastic steel strips form a spiral gap, which is used to hook and peel off the residual consumables on the print head (12), so that the scraping mesh (9) contacts the side wall of the print head (12) during rotation to perform spiral scraping.

10. The 3D printer nozzle spiral scraping device according to claim 9, characterized in that, The edge of the collection tray (4) is made of elastically deformable rubber material so that the waste generated by scraping can fall into the receiving cavity (41).

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