Scraper for 3D printer
By designing a scraper device for 3D printers with motors, rotating shafts, cleaning brushes and gears, the problems of reduced print quality and work efficiency caused by scraper surface residues are solved, and higher quality printing and smoother scraper movement are achieved.
Patent Information
- Application Number
- CN202422233339.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-12
AI Technical Summary
When the scraper is moved by existing 3D printers, residual metal powder or plastic wire is prone to appear on the surface, resulting in a decrease in the quality of the print piece and poor movement of the scraper, which reduces working efficiency.
A scraper device including a housing, a motor, a rotary shaft, a cleaning brush and a gear is designed. The rotary shaft and a cleaning brush are driven by the motor to rotate, remove residues on the surface of the scraper, and the rotation and movement of the scraper are realized through the gear.
Effectively remove residues on the surface of the scraper, prevent them from entering the inside of the print, improve the quality and aesthetics of the printer, enhance the smooth movement of the scraper, and improve the working efficiency of the printer.
Smart Images
Figure CN223013899U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of scrapers, in particular to a scraper for a 3D printer. Background Art
[0002] Scrapers are versatile and widely used tools. Scrapers are widely used in mechanical manufacturing, maintenance, metal processing, decoration and printing. They can be used to scrape the surface of metal, plastic, wood and other materials, and can also be used to clean and level various work surfaces and workpieces. They include flat scrapers, triangular scrapers, crescent scrapers and other types.
[0003] When the scraper used in existing 3D printers moves, residual metal powder or plastic filaments are likely to appear on its surface. These residues will be brought into the printed part by the moving scraper. At the same time, the residues are likely to cause wear and scratches on the printed part, thereby reducing the quality of the printed part. These residues will also cause the scraper to move poorly, thereby reducing the scraper's working efficiency. Utility Model Content
[0004] The utility model aims to solve the problem that when the above-mentioned device is in use, residues will appear on the scraper surface, resulting in reduced printing quality and scraper working efficiency, thereby proposing a scraper for a 3D printer.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a scraper for a 3D printer, comprising a shell, characterized in that: two mounting frames are fixedly installed on the outer wall of the shell, a group of movable holes 1 are opened on the outer wall of the shell, and two groups of movable holes 2 are opened on the outer wall of the shell, a motor 1 is fixedly installed on one side of the outer wall of the shell, a rotating shaft 1 is movably inserted between the inner walls of the two groups of the movable holes 2, and the output end of the motor 1 is fixedly connected to one side of the outer wall of one of the two rotating shafts 1, the outer walls of the two rotating shafts 1 are fixedly sleeved with cleaning brushes, gears are fixedly installed on one side of the outer walls of the two rotating shafts 1, and the outer walls of the two gears are meshed with each other, and the motor 2 is fixedly installed on one side of the outer wall of the shell.
[0006] Preferably, a second rotating shaft is fixedly mounted on the output end of the second motor, and a set of inner surface walls of the first movable hole are movably inserted with the outer surface wall of the second rotating shaft, and a connecting block is fixedly sleeved on the outer surface wall of the second rotating shaft.
[0007] Preferably, the outer surface wall of the connection block is provided with two installation grooves 1, and the inner surface walls of the two installation grooves 1 are each provided with a group of square holes.
[0008] Preferably, a clamping block 1 is movably inserted into the inner surface wall of the two installation grooves 1, and a pointed scraper is fixedly installed at the bottom of one of the two clamping blocks 1.
[0009] Preferably, a set of second mounting grooves are formed in the outer surface walls of both of the two clamping blocks one, and a set of springs are fixedly mounted on one side of the inner walls of the two sets of second mounting grooves.
[0010] Preferably, a set of second clamping blocks are fixedly mounted on the outer surface walls of both of the two sets of springs, and the inner surface walls of the two sets of second mounting grooves are movably inserted with the outer surface walls of a set of second clamping blocks.
[0011] Preferably, a set of second clamping blocks are movably inserted into the inner surface walls of the two sets of square holes, and a flat head scraper is fixedly mounted on the top of the other one of the two clamping blocks one.
[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.
[0013] In the present utility model, when there are residual metal or rubber chips on the surface of the scraper, only need to start the second motor, which drives the lower scraper to rotate under the two cleaning brushes through the second rotating shaft. Subsequently, the first motor drives the two cleaning brushes to rotate to remove the residues on the surface of the scraper. After the scraper is cleaned, it can be reset by the second motor. This device can timely remove the residual metal powder or plastic filaments on the surface of the scraper, prevent the residual materials from entering the inside of the printed part and scratching the surface of the printed part when the scraper moves, thereby improving the quality and aesthetics of the printed part. Keeping the surface of the scraper clean can also make its movement smoother and improve the working efficiency of the 3D printer.
[0014] In the present utility model, two types of scrapers, namely a pointed scraper and a flat head scraper, are arranged inside the device, so as to adapt to different printing requirements and improve the practicability of the 3D printer. When the scraper is worn out and needs to be replaced, only need to press down the second clamping block, and the corresponding scraper can be removed, thus shortening the maintenance time and improving the working efficiency. Description of the Drawings
[0015] Figure 1 is the main view three-dimensional structure diagram of a scraper for a 3D printer proposed by the present utility model;
[0016] Figure 2 is the partial disassembly schematic diagram of a scraper for a 3D printer proposed by the present utility model;
[0017] Figure 3 is the top view disassembly diagram of a scraper for a 3D printer proposed by the present utility model;
[0018] Figure 4 is the partial disassembly three-dimensional diagram of a scraper for a 3D printer proposed by the present utility model.
[0019] Legend Explanation:
[0020] 1. Outer shell; 2. Mounting bracket; 3. First movable hole; 4. Second movable hole; 5. First motor; 6. First rotating shaft; 7. Cleaning brush; 8. Gear; 9. Second motor; 10. Second rotating shaft; 11. Connecting block; 12. First mounting groove; 13. Square hole; 14. First clamping block; 15. Pointed scraper; 16. Second mounting groove; 17. Spring; 18. Second clamping block; 19. Flat scraper. Detailed implementation mode
[0021] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described below in conjunction with the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0022] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed in the following specification.
[0023] Embodiment 1, as Figures 1-4 shown, the present invention provides a scraper for a 3D printer, including an outer shell 1, characterized in that: two mounting brackets 2 are fixedly installed on the outer surface wall of the outer shell 1, a group of first movable holes 3 are opened on the outer surface wall of the outer shell 1, two groups of second movable holes 4 are opened on the outer surface wall of the outer shell 1, a first motor 5 is fixedly installed on one side of the outer wall of the outer shell 1, a first rotating shaft 6 is movably inserted between the inner surface walls of the two groups of second movable holes 4, and the output end of the first motor 5 is fixedly connected to the outer wall of one of the two first rotating shafts 6. Cleaning brushes 7 are fixedly sleeved on the outer surfaces of the two first rotating shafts 6, first clamping blocks 8 are fixedly installed on the outer walls of the two first rotating shafts 6, and the outer surfaces of the two first clamping blocks 8 are meshed with each other. A second motor 9 is fixedly installed on one side of the outer wall of the outer shell 1, a second rotating shaft 10 is fixedly installed at the output end of the second motor 9, and the outer surface of the second rotating shaft 10 is movably inserted between the inner surface walls of a group of first movable holes 3. A connecting block 11 is fixedly sleeved on the outer surface of the second rotating shaft 10.
[0024] The overall effect achieved by the entire Embodiment 1 is that after the second motor 9 is started, it will drive the connecting block 11 to start rotating through the second rotating shaft 10, thereby driving the two scrapers to rotate, adapting to different printing requirements, and improving the practicability of the printer. After the first motor 5 is started, it will drive the first rotating shaft 6 to start rotating. Under the action of the two first clamping blocks 8, the first rotating shaft 6 will drive the other first rotating shaft 6 to rotate together, so that the two cleaning brushes 7 can rotate to sweep away the residues on the surface of the scraper, preventing these residues from scratching and wearing the printed parts, reducing the printing quality of the printer, and also making the scraper move smoothly and improving the printing efficiency.
[0025] Embodiment 2, as Figures 2-4As shown in the figure, two first mounting grooves 12 are formed in the outer surface wall of the connecting block 11. A set of square holes 13 are formed in the inner surface walls of the two first mounting grooves 12. A first clamping block 14 is movably inserted into the inner surface walls of the two first mounting grooves 12. A pointed scraper 15 is fixedly installed at the bottom of one of the two first clamping blocks 14. A set of second mounting grooves 16 are formed in the outer surface walls of the two first clamping blocks 14. A set of springs 17 are fixedly installed on one side of the inner walls of the two sets of second mounting grooves 16. A set of second clamping blocks 18 are fixedly installed on the outer surface walls of the two sets of springs 17. The inner surface walls of the two sets of second mounting grooves 16 are movably inserted with the outer surface walls of a set of second clamping blocks 18. A set of second clamping blocks 18 are movably inserted into the inner surface walls of the two sets of square holes 13. A flat scraper 19 is fixedly installed at the top of the other of the two first clamping blocks 14.
[0026] The effect achieved by the entire Embodiment 2 is that when the operator needs to replace the scraper, only need to press a set of second clamping blocks 18, and then a set of second clamping blocks 18 will be withdrawn from the inside of a set of square holes 13 and squeeze a set of springs 17 to enter the inside of a set of second mounting grooves 16. Subsequently, the first clamping block 14 will fall from the inside of the connecting block 11 under the action of gravity, which is convenient for the operator to replace the corresponding scraper. The disassembly of the scraper is time-saving and labor-saving, reduces the downtime of the printer, and improves the printing efficiency.
[0027] Working principle: The operator can fix the scraper inside the printer through the two mounting brackets 2. When the second motor 9 is started, it will drive the second rotating shaft 10 to start rotating inside a set of first moving holes 3. The second rotating shaft 10 will drive the connecting block 11 fixedly sleeved on its outer surface to move together, so that the pointed scraper 15 and the flat scraper 19 start to rotate, and bring the corresponding scraper to the lower part according to the actual needs of the printer. When the scraper is working, a large amount of metal powder or plastic filaments will adhere to its surface. At this time, the second motor 9 is started again, and the connecting block 11 is driven to rotate through the second rotating shaft 10, so that the contaminated scraper rotates and contacts the two cleaning brushes 7. At this time, the first motor 5 is also started to drive a first rotating shaft 6 to start rotating. When a first rotating shaft 6 rotates, it will drive the gear 8 fixedly installed on one side of its outer wall to rotate. The gear 8 causes another meshing-connected gear 8 to rotate together and drives another first rotating shaft 6 to start rotating. During the rotation of the two first rotating shafts 6, the residues on the surface of the scraper will be swept away. Subsequently, the cleaned scraper will rotate to the lower part again to start working. When the scraper is severely worn and needs to be replaced, only need to press a set of second clamping blocks 18 to squeeze a set of springs 17 and enter the inside of a set of second mounting grooves 16, then the corresponding scraper can be removed from the inside of the connecting block 11, which is convenient for the operator to replace it.
[0028] The above are only the preferred embodiments of the present utility model and do not constitute other forms of limitation to the present utility model. Any person skilled in the relevant art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution content of the present utility model still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A scraper for a 3D printer, comprising a housing (1), characterized in that: Two mounting frames (2) are fixedly mounted on the outer wall of the shell (1), a group of movable holes (1) (3) are opened on the outer wall of the shell (1), two groups of movable holes (2) (4) are opened on the outer wall of the shell (1), a motor (5) is fixedly mounted on one side of the outer wall of the shell (1), a rotating shaft (6) is movably inserted between the inner walls of the two groups of movable holes (4), and the output end of the motor (5) is fixedly connected to one side of the outer wall of one of the two rotating shafts (6), the outer walls of the two rotating shafts (6) are fixedly sleeved with cleaning brushes (7), the outer walls of the two rotating shafts (6) are fixedly mounted with gears (8), and the outer walls of the two gears (8) are meshingly connected with each other, and the motor (9) is fixedly mounted on one side of the outer wall of the shell (1).
2. A scraper for a 3D printer according to claim 1, characterized in that: The output end of the second motor (9) is fixedly mounted with a second rotating shaft (10), and the inner surface wall of a set of movable holes (3) is movably inserted with the outer surface wall of the second rotating shaft (10), and the outer surface wall of the second rotating shaft (10) is fixedly sleeved with a connecting block (11).
3. A scraper for a 3D printer according to claim 2, characterized in that: The outer surface wall of the connection block (11) is provided with two installation grooves (12), and the inner surface walls of the two installation grooves (12) are each provided with a group of square holes (13).
4. A scraper for a 3D printer according to claim 3, characterized in that: A clamping block (14) is movably inserted into the inner surface walls of the two mounting grooves (12), and a pointed scraper (15) is fixedly mounted on the bottom of one of the two clamping blocks (14).
5. A scraper for a 3D printer according to claim 4, characterized in that: The outer walls of the two clamping blocks 1 (14) are each provided with a set of mounting grooves 2 (16), and one side of the inner walls of the two sets of mounting grooves 2 (16) is fixedly mounted with a set of springs (17).
6. A scraper for a 3D printer according to claim 5, characterized in that: The outer walls of the two groups of springs (17) are fixedly mounted with a second group of clamping blocks (18), and the inner walls of the two groups of mounting grooves (16) are movably inserted into the outer walls of the second group of clamping blocks (18).
7. A scraper for a 3D printer according to claim 6, characterized in that: A set of second clamping blocks (18) are movably inserted into the inner surface walls of the two sets of square holes (13), and a flat-head scraper (19) is fixedly mounted on the top of the other of the two first clamping blocks (14).