3D printing material spraying device

Abstract

The utility model relates to the technical field of 3D printing, and discloses a 3D printing material spraying device which comprises a material storage shell, a nozzle is fixedly arranged at the lower end of the material storage shell, an upper cover is fixedly arranged at the upper end of the material storage shell, a motor is fixedly arranged at the upper end of the upper cover, and a first fixing frame is fixedly arranged at the output end of the motor. A second fixing frame is fixedly arranged at the lower end of the first fixing frame, scraping plates are arranged on the two sides of the first fixing frame, and an attaching structure is installed between the scraping plates and the first fixing frame and comprises movable rods fixedly arranged at the upper ends and the lower ends of one sides of the scraping plates, and springs are arranged on the outer walls of the movable rods. One end of the movable rod penetrates through one side of the first fixing frame and is provided with a nut. According to the 3D printing material spraying device disclosed by the utility model, the scraping plate can be better attached to the inner walls of the material storage shells with different sizes, and the suspended state is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a 3D printing spraying device. Background Art

[0002] 3D printing is an additive manufacturing device that uses rapid prototyping technology. The spraying device is one of the main parts of the 3D printing device. The printing material is ejected through the spraying device to construct the object. The spraying device used in the 3D printer includes a material chamber and a corresponding nozzle structure. The material used in current 3D printing is generally powdered metal.

[0003] The existing patent with publication number CN220742153U proposes a 3D printing spraying device. The device is equipped with a scraper and a rubber layer. The scraper can be driven to rotate by the stirring shaft, so that the scraper cooperates with the rubber layer to scrape and clean the inner wall of the storage shell, which can reduce the material remaining in the storage shell and improve the spraying efficiency.

[0004] However, when setting the scraper, the device needs to set the size according to the diameter of the inner wall of the shell, and cannot achieve close fitting to the inner walls of the shell with different sizes, resulting in limited application range of the scraper. Utility Model Content

[0005] The purpose of the utility model is to provide a 3D printing spraying device to solve the problem that in the existing device, when setting the scraper, the size needs to be set according to the diameter of the inner wall of the shell, and it is impossible to achieve a tight fit on the inner walls of the shell with different sizes, resulting in a limited scope of application of the scraper.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a 3D printing spraying device, comprising a material storage shell, a nozzle fixedly provided at the lower end of the material storage shell, an upper cover fixedly provided at the upper end of the material storage shell, a motor fixedly provided at the upper end of the upper cover, a first fixed frame fixedly provided at the output end of the motor, a second fixed frame fixedly provided at the lower end of the first fixed frame, scraping plates provided on both sides of the first fixed frame, a close contact structure installed between the scraping plate and the first fixed frame, the close contact structure comprising a movable rod fixedly provided at the upper and lower ends of one side of the scraping plate, a spring provided on the outer wall of the movable rod, and a nut threadedly provided on one end of the movable rod passing through one side of the first fixed frame.

[0007] Preferably, a split structure is installed between the first fixing frame and the second fixing frame, and the split structure includes two first fixing plates fixedly arranged at the front and rear ends of the second fixing frame, and the front and rear ends of the first fixing frame located at the upper end of the first fixing plate are fixedly arranged with second fixing plates, and the screw on the upper end of the first fixing plate passes through the second fixing plate and a nut is threadedly arranged on the outer wall.

[0008] Preferably, a feed tube is fixedly provided inside the upper cover, and a threaded cap is threadedly provided on the upper end of the feed tube.

[0009] Preferably, a sealing plate is fixedly provided on one side of the scraping plate.

[0010] Preferably, a plurality of stirring rods are fixedly provided on one side of the scraping plate close to the first fixing frame, and a through hole is provided inside the first fixing frame located on the side of the stirring rod.

[0011] Preferably, a rectangular plate is fixedly provided at the upper and lower ends of one side of the scraping plate, and a rectangular groove is provided on the side wall of the first fixing frame located on one side of the rectangular plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1) By setting a close-fitting structure, when the first fixed rod is installed inside the storage shell, even if the inner wall diameter of the storage shell is different, the elastic scraper plate can ensure that one side of the scraper plate still fits the inner wall of the storage shell, which is better suitable for storage shells of different sizes.

[0014] 2) By providing a split structure, when the first fixing frame and the second fixing frame need to be frequently dismantled for cleaning, the second fixing frame can be separated from the lower end of the first fixing frame to achieve split cleaning and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a 3D printing spraying device in an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the material storage shell in the embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the split structure of the motor and the first fixing bracket in an embodiment of the utility model;

[0018] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 5 Schematic diagram of the structure of the first fixing frame and the second fixing frame in an embodiment of the present utility model.

[0020] In the figure: 1. material storage shell; 2. nozzle; 3. motor; 4. first fixed frame; 5. scraper plate; 6. clamping structure; 7. movable rod; 8. spring; 9. stirring rod; 10. through hole; 11. second fixed frame; 12. nut; 13. split structure; 14. first fixed plate; 15. second fixed plate; 16. rectangular plate; 17. rectangular groove; 18. feeding pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1

[0023] Combine Figure 1-Figure 5 A 3D printing spraying device includes a material storage shell 1, a nozzle 2 is fixedly provided at the lower end of the material storage shell 1, an upper cover is fixedly provided at the upper end of the material storage shell 1, a motor 3 is fixedly provided at the upper end of the upper cover, a first fixing frame 4 is fixedly provided at the output end of the motor 3, a second fixing frame 11 is fixedly provided at the lower end of the first fixing frame 4, scraping plates 5 are provided on both sides of the first fixing frame 4, a close contact structure 6 is installed between the scraping plate 5 and the first fixing frame 4, the close contact structure 6 includes a movable rod 7 fixedly provided at the upper and lower ends of one side of the scraping plate 5, a spring 8 is provided on the outer wall of the movable rod 7, and one end of the movable rod 7 passes through one side of the first fixing frame 4 and is threaded with a nut 12.

[0024] See Figure 1 、 Figure 2 and Figure 4 , it is further obtained that a feed pipe 18 is fixedly provided inside the upper cover, a threaded cap is threadedly provided on the upper end of the feed pipe 18, a sealing plate is fixedly provided on one side of the scraper plate 5, a plurality of stirring rods 9 are fixedly provided on the side of the scraper plate 5 close to the first fixed frame 4, a through hole 10 is provided inside the first fixed frame 4 on the side of the stirring rod 9, a rectangular plate 16 is fixedly provided on the upper and lower ends of one side of the scraper plate 5, and a rectangular groove 17 is provided on the side wall of the first fixed frame 4 on the side of the rectangular plate 16.

[0025] Specifically, the feeding pipe 18 facilitates the feeding of materials into the storage shell 1, the stirring rod 9 ensures the stability of the scraper plate 5 while stirring the materials, the through hole 10 facilitates the entry of one end of the stirring rod 9, and the rectangular plate 16 and the rectangular groove 17 ensure the stable movement of the scraper plate 5.

[0026] Example 2

[0027] See Figure 5 , and on the basis of Example 1, it is further obtained that a split structure 13 is installed between the first fixing frame 4 and the second fixing frame 11, and the split structure 13 includes two first fixing plates 14 fixedly arranged at the front and rear ends of the second fixing frame 11, and the front and rear ends of the first fixing frame 4 located at the upper ends of the first fixing plates 14 are fixedly arranged with second fixing plates 15, and the screw at the upper end of the first fixing plate 14 passes through the second fixing plate 15 and a nut is threadedly arranged on the outer wall.

[0028] Specifically, the first fixing plate 14 is used to set the scraping plate 5 , the first fixing plate 14 is used to set the screw, and the second fixing plate 15 is used to be fastened to the first fixing plate 14 .

[0029] During actual operation, the material is fed into the storage shell 1 through the feeding pipe 18. When the motor 3 and the first fixing frame 4 are fed into the storage shell 1, one side of the scraper plate 5 contacts the inner wall of the storage shell 1. Due to the action of the spring 8, the scraper plate 5 is squeezed and can be closely attached to the inner wall of the storage shell 1 of different sizes. When the material is stirred in the later stage, the inner wall of the storage shell 1 can be better scraped.

[0030] When the second fixing frame 11 needs to be disassembled, the motor 3, the first fixing frame 4, and the second fixing frame 11 are taken out, the nut on the outer wall of the screw is removed, and the second fixing frame 11 is pulled downward from the outer wall of the output shaft of the motor 3.

[0031] Although the 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 variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A 3D printing spraying device, comprising a material storage shell (1), a nozzle (2) fixedly provided at the lower end of the material storage shell (1), characterized in that: The upper end of the material storage shell (1) is fixedly provided with an upper cover, the upper end of the upper cover is fixedly provided with a motor (3), the output end of the motor (3) is fixedly provided with a first fixing frame (4), the lower end of the first fixing frame (4) is fixedly provided with a second fixing frame (11), both sides of the first fixing frame (4) are provided with scraping plates (5), a close-fitting structure (6) is installed between the scraping plates (5) and the first fixing frame (4), the close-fitting structure (6) comprises a movable rod (7) fixedly provided at the upper and lower ends of one side of the scraping plate (5), a spring (8) is provided on the outer wall of the movable rod (7), and one end of the movable rod (7) passes through one side of the first fixing frame (4) and is threadedly provided with a nut (12).

2. A 3D printing spraying device according to claim 1, characterized in that: A split structure (13) is installed between the first fixing frame (4) and the second fixing frame (11), and the split structure (13) includes two first fixing plates (14) fixedly arranged at the front and rear ends of the second fixing frame (11), and second fixing plates (15) are fixedly arranged at the front and rear ends of the first fixing frame (4) located at the upper ends of the first fixing plates (14), and a screw at the upper end of the first fixing plate (14) passes through the second fixing plate (15), and a nut is threadedly arranged on the outer wall.

3. A 3D printing spraying device according to claim 1, characterized in that: A feeding pipe (18) is fixedly arranged inside the upper cover, and a threaded cap is threadedly arranged on the upper end of the feeding pipe (18).

4. A 3D printing spraying device according to claim 1, characterized in that: A sealing plate is fixedly provided on one side of the scraping plate (5).

5. The 3D printing spraying device according to claim 1, characterized in that: A plurality of stirring rods (9) are fixedly provided on one side of the scraper plate (5) close to the first fixing frame (4), and a through hole (10) is provided inside the first fixing frame (4) located on one side of the stirring rods (9).

6. A 3D printing spraying device according to claim 1, characterized in that: A rectangular plate (16) is fixedly provided at the upper and lower ends of one side of the scraping plate (5), and a rectangular groove (17) is provided on the side wall of the first fixing frame (4) located on one side of the rectangular plate (16).

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