3D printing silica sand preparation method and system

Abstract

The invention relates to the technical field of silica sand preparation, and particularly discloses a 3D printing silica sand preparation method and system.The 3D printing silica sand preparation method is characterized by comprising the following steps that S1, raw materials are put into a roller, and a first rotating shaft is driven by a first motor to rotate, so that the raw materials are evenly ground in the roller; s2, an electric rotating rod drives a stirring rod and a scraping plate to rotate, grinding is conducted in cooperation with rotation of the roller, and the scraping plate scrapes off raw materials attached to the inner wall of the roller; s3, the ground raw materials directly fall on the surface of the filter plate, a part of the ground raw materials directly fall on the base, and a part of impurities stay on the surface of the filter plate; s4, a second rotating shaft is controlled to rotate through a second motor, a pressing rod on the second rotating shaft periodically pushes a filter plate, the filter plate vibrates at a constant speed through second elastic components arranged on the two sides, and the raw materials clamped on the filter plate are shaken off; and the workload of people can be relieved, the time spent by people is saved, and therefore the silica sand preparation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of silica sand preparation, and in particular to a method and system for preparing silica sand for 3D printing. Background Art

[0002] 3D printing silica sand involves using silica sand as raw material to build three-dimensional objects layer by layer through 3D printing technology. Silica sand is widely used in the 3D printing casting industry due to its excellent refractory and casting properties. Selecting high-quality silica sand suitable for 3D printing is a key step. Silica sand needs to be carefully screened and pre-treated to ensure that its particle size distribution is uniform and free of impurities, which not only brings new productivity to the traditional manufacturing industry, but also opens up new paths for future materials science and engineering technology. Through continuous technological innovation and application expansion, 3D printing silica sand is expected to play a more important role in multiple fields.

[0003] When people prepare silica sand, they need to go through steps such as cleaning, filtering and grinding. Since silica sand will be mixed with some impurities during the grinding process, filter plates are usually used for filtering. However, the filter plates currently used by people are mostly fixedly installed, and silica sand often gets stuck, requiring people to clean it manually, which increases people's workload and brings inconvenience to people's silica sand preparation work. Summary of the invention

[0004] The object of the present invention is to provide a method and system for preparing silica sand for 3D printing to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a method for preparing silica sand for 3D printing, comprising the following steps:

[0006] S1: Put the raw material into the drum, and drive the first rotating shaft to rotate through the first motor, so that the raw material is evenly ground inside the drum;

[0007] S2: The electric rotating rod drives the stirring rod and the scraper to rotate, and the grinding is carried out in coordination with the self-rotation of the drum, while the scraper scrapes off the raw materials attached to the inner wall of the drum;

[0008] S3: The raw materials fall directly on the surface of the filter plate after being ground. Some of the ground raw materials fall directly on the base, and some impurities remain on the surface of the filter plate.

[0009] S4: The second motor controls the second rotating shaft to rotate, so that the pressure rod on the second rotating shaft periodically pushes the filter plate, and the filter plate vibrates at a uniform speed through the second elastic components arranged on both sides to shake off the raw materials stuck on the filter plate.

[0010] Preferably, a 3D printing silica sand preparation system comprises a base, a drum, a bracket and a filter plate; a plurality of side plates are fixed to one side of the base, the drum is arranged between the side plates, both sides of the drum are connected to a first rotating shaft, a first motor and a second motor are installed on a side of the side plate away from the drum, an output end of the first motor is connected to the first rotating shaft, a cover plate is connected to one side of the drum, latches are connected to both sides of the cover plate, screws are connected to both sides of the drum, the latches are inserted into the drum, one end of the screw is fitted with the latches, an electric rotating rod is installed inside the drum, and a plurality of stirring rods are connected to the electric rotating rod; the second motor is close to the A second rotating shaft is connected to one side of the side plate, and the second rotating shaft is arranged between the side plates. A plurality of pressure rods are connected to the second rotating shaft, and one end of the pressure rod away from the second rotating shaft is in contact with the filter plate. A bracket is installed between the side plates, and a through groove is provided on the bracket, and the through groove penetrates the bracket longitudinally. The filter plate is arranged in the through groove, and grooves are provided on both sides of the inner wall of the bracket, and both sides of the filter plate are slidably connected to the grooves; a groove is provided on one side of the base close to the filter plate, and a push plate is provided in the groove, and a cylinder is installed on one side of the base, and a push rod is connected to the cylinder, and one end of the push rod away from the cylinder is connected to the push plate.

[0011] Preferably, connecting grooves are provided on both sides of the drum, the connecting grooves penetrate the drum transversely, one end of the connecting grooves extends to the inside of the cover plate, and the latch and the screw are both arranged in the connecting grooves, so as to facilitate the connection between the cover plate and the drum.

[0012] Preferably, a first elastic component is connected inside the cover plate, and one end of the first elastic component away from the cover plate is connected to the latch; this facilitates saving people's physical strength in disassembling the cover plate and the drum.

[0013] Preferably, a scraper is connected to the side of the stirring rod away from the electric rotating rod, and the side of the scraper away from the stirring rod is in contact with the inner wall of the drum, so as to facilitate scraping off the raw materials attached to the inner wall of the drum.

[0014] Preferably, the second rotating shaft is arranged between the bracket and the base, and one end of the pressure rod away from the second rotating shaft is processed into a curved surface to prevent the pressure rod from damaging the filter plate.

[0015] Preferably, sliders are connected to both sides of the filter plate, one side of the slider is connected to a second elastic component, and the second elastic component is connected to the groove at a side away from the slider, so as to drive the filter plate to vibrate.

[0016] Preferably, the side surfaces of the push plate are in contact with the inner wall of the groove, and both sides of the push plate are slidably connected with the inner wall of the groove, so as to facilitate pushing out the ground silica sand.

[0017] Preferably, slide grooves are provided on both sides of the inner wall of the groove, guide rods are connected to the slide grooves, and both sides of the push plate are connected to the guide rods, thereby improving the stability of the push plate in the groove.

[0018] Preferably, the width of the groove is equal to the width of the through groove, and the filter plate corresponds to the groove vertically, so that the silica sand can fall directly into the groove.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging a second elastic component at the connection between the filter plate and the bracket, and arranging the two sides of the filter plate and the inner wall of the bracket to be slidingly connected, the ground silica sand can be directly filtered when the drum is dropping, and the vibration method is used to reduce the occurrence of silica sand getting stuck on the filter plate, and the vibration of the filter plate is directly controlled by the pressure rod driven by the second rotating shaft, so that it can be adjusted according to people's needs, thereby improving the efficiency of silica sand filtration, reducing people's workload during the preparation process of silica sand, saving people's time, and thus improving the efficiency of silica sand preparation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front structural schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall structure of the base of the present invention;

[0022] Figure 3 It is a schematic diagram of the explosion structure of the cover plate of the present invention;

[0023] Figure 4 It is a schematic diagram of the overall structure of the drum of the present invention;

[0024] Figure 5 Schematic diagram of the overall structure of the support of the present invention.

[0025] In the figure: 1. base; 2. side plate; 3. first motor; 4. first rotating shaft; 5. roller; 6. cover plate; 7. second motor; 8. second rotating shaft; 9. pressure rod; 10. bracket; 11. cylinder; 12. groove; 13. push rod; 14. push plate; 15. slide groove; 16. guide rod; 17. connecting groove; 18. screw rod; 19. latch; 20. first elastic component; 21. electric rotating rod; 22. stirring rod; 23. scraper; 24. through groove; 25. groove; 26. slider; 27. second elastic component; 28. filter plate. DETAILED DESCRIPTION

[0026] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] See also Figure 1-5 The present invention provides a technical solution: a method for preparing silica sand for 3D printing, comprising the following steps:

[0030] S1: Put the raw material into the drum 5, and drive the first rotating shaft 4 to rotate through the first motor 3, so that the raw material is evenly ground inside the drum 5;

[0031] S2: The electric rotating rod 21 drives the stirring rod 22 and the scraper 23 to rotate, and the grinding is carried out in coordination with the rotation of the drum 5, and the scraper 23 scrapes off the raw materials attached to the inner wall of the drum 5;

[0032] S3: The raw material falls directly on the surface of the filter plate 28 after being ground, a part of the ground raw material falls directly on the base 1, and a part of the impurities remain on the surface of the filter plate 28;

[0033] S4: The second motor 7 controls the second rotating shaft 8 to rotate, so that the pressure rod 9 on the second rotating shaft 8 periodically pushes the filter plate 28, and the filter plate 28 is vibrated at a uniform speed through the second elastic components 27 arranged on both sides to shake off the raw materials stuck on the filter plate 28.

[0034] Furthermore, a 3D printing silica sand preparation system includes a base 1, a roller 5, a bracket 10 and a filter plate 28; a plurality of side panels 2 are fixed to one side of the base 1, the roller 5 is arranged between the side panels 2, the first rotating shaft 4 is connected to both sides of the roller 5, a first motor 3 and a second motor 7 are installed on the side of the side panel 2 away from the roller 5, the output end of the first motor 3 is connected to the first rotating shaft 4, a cover plate 6 is connected to one side of the roller 5, a latch 19 is connected to both sides of the cover plate 6, a screw 18 is connected to both sides of the roller 5, the latch 19 is inserted into the roller 5, one end of the screw 18 is fitted with the latch 19, an electric rotating rod 21 is installed inside the roller 5, and a plurality of stirring rods 22 are connected to the electric rotating rod 21; the second motor 7 is close to the side of the side panel 2 A second rotating shaft 8 is connected, and the second rotating shaft 8 is arranged between the side plates 2. A plurality of pressure rods 9 are connected to the second rotating shaft 8, and the ends of the pressure rods 9 away from the second rotating shaft 8 are in contact with the filter plate 28. A bracket 10 is installed between the side plates 2, and a through groove 24 is provided on the bracket 10, and the through groove 24 longitudinally penetrates the bracket 10. The filter plate 28 is arranged in the through groove 24, and grooves 25 are provided on both sides of the inner wall of the bracket 10, and both sides of the filter plate 28 are slidably connected to the grooves 25; a groove 12 is provided on the side of the base 1 close to the filter plate 28, and a push plate 14 is provided in the groove 12, and a cylinder 11 is installed on one side of the base 1, and a push rod 13 is connected to the cylinder 11, and the end of the push rod 13 away from the cylinder 11 is connected to the push plate 14.

[0035] Furthermore, connecting grooves 17 are provided on both sides of the drum 5, and the connecting grooves 17 pass through the drum 5 horizontally. One end of the connecting groove 17 extends to the inside of the cover plate 6, and the latch 19 and the screw 18 are both arranged in the connecting groove 17, so as to facilitate the connection between the cover plate 6 and the drum 5.

[0036] Furthermore, a first elastic component 20 is connected inside the cover plate 6 , and one end of the first elastic component 20 away from the cover plate 6 is connected to the latch 19 , so as to save people's physical strength in disassembling the cover plate 6 and the drum 5 .

[0037] Furthermore, a scraper 23 is connected to the side of the stirring rod 22 away from the electric rotating rod 21 , and the side of the scraper 23 away from the stirring rod 22 is in contact with the inner wall of the drum 5 , so as to facilitate scraping off the raw materials attached to the inner wall of the drum 5 .

[0038] Furthermore, the second rotating shaft 8 is disposed between the bracket 10 and the base 1 , and one end of the pressure rod 9 away from the second rotating shaft 8 is processed into a curved surface to prevent the pressure rod 9 from damaging the filter plate 28 .

[0039] Furthermore, sliders 26 are connected to both sides of the filter plate 28, and a second elastic component 27 is connected to one side of the slider 26. The second elastic component 27, and the side of the second elastic component 27 away from the slider 26 is connected to the groove 25, so as to drive the filter plate 28 to vibrate.

[0040] Furthermore, the side surfaces of the push plate 14 are in contact with the inner wall of the groove 12, and both sides of the push plate 14 are slidably connected with the inner wall of the groove 12, so as to facilitate pushing out the ground silica sand.

[0041] Furthermore, slide grooves 15 are provided on both sides of the inner wall of the groove 12 , guide rods 16 are connected to the slide grooves 15 , and both sides of the push plate 14 are connected to the guide rods 16 , thereby improving the stability of the push plate 14 in the groove 12 .

[0042] Furthermore, the width of the groove 12 is equal to the width of the through groove 24 , and the filter plate 28 corresponds vertically to the groove 12 , so that the silica sand can fall directly into the groove 12 .

[0043] Working principle: In actual use, the present invention starts the first motor 3 installed on one side of the side plate 2, so that the first rotating shaft 4 drives the drum 5 to rotate, so that the raw material is ground in the drum 5, and at the same time controls the electric rotating rod 21 to drive the stirring rod 22 to rotate inside the drum 5, so as to improve the efficiency of grinding the raw material, and the scraper 23 connected to the stirring rod 22 will scrape the raw material attached to the inner wall of the drum 5. After the grinding is completed, the screws 18 on both sides of the drum 5 are rotated so that the screws 18 move in the connecting groove 17 toward the direction of the latch 19. After the latch 19 is pushed back, the first elastic component 20 will also The filter plate 28 is automatically retracted. At this time, people can remove the cover plate 6, and then the ground silica sand will fall directly onto the filter plate 28. If the silica sand is stuck on the filter plate 28, the second motor 7 can be started to make the second rotating shaft 8 drive the pressure rod 9 to rotate, and the pressure rod 9 will periodically press the filter plate 28, and the sliders 26 connected on both sides of the filter plate 28 will vibrate up and down in the groove 25 through the cooperation of the second elastic component 27, so as to shake the silica sand into the groove 12 on the base 1. At this time, the push rod 13 is driven by the cylinder 11 to push the push plate 14, so that the silica sand can be pushed out of the groove 12.

[0044] It is worth noting that the entire device is controlled by a main control button. Since the device matched with the control button is a common device and belongs to the existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated 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 that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing silica sand for 3D printing, characterized in that: The following steps are involved: S1: Put the raw material into the drum (5), and drive the first rotating shaft (4) to rotate through the first motor (3), so that the raw material is evenly ground inside the drum (5); S2: The electric rotating rod (21) drives the stirring rod (22) and the scraper (23) to rotate, and the grinding is carried out in coordination with the rotation of the drum (5), and the scraper (23) scrapes off the raw materials attached to the inner wall of the drum (5); S3: After being ground, the raw material falls directly onto the surface of the filter plate (28), a portion of the ground raw material falls directly onto the base (1), and a portion of impurities remain on the surface of the filter plate (28); S4: The second motor (7) controls the second rotating shaft (8) to rotate, so that the pressure rod (9) on the second rotating shaft (8) periodically pushes the filter plate (28), and the filter plate (28) vibrates at a uniform speed through the second elastic components (27) arranged on both sides, so that the raw materials stuck on the filter plate (28) are shaken off.

2. A 3D printing silica sand preparation system, characterized in that: The invention comprises a base (1), a roller (5), a bracket (10) and a filter plate (28); a plurality of side plates (2) are fixed to one side of the base (1); the roller (5) is arranged between the side plates (2); both sides of the roller (5) are connected to a first rotating shaft (4); a first motor (3) and a second motor (7) are installed on the side of the side plate (2) away from the roller (5); the output end of the first motor (3) is connected to the first rotating shaft (4); one side of the roller (5) is connected to a first rotating shaft (4); A cover plate (6) is connected, and both sides of the cover plate (6) are connected with latches (19), and both sides of the roller (5) are connected with screws (18), and the latches (19) are inserted into the roller (5), and one end of the screw (18) is in contact with the latches (19), and an electric rotating rod (21) is installed inside the roller (5), and a plurality of stirring rods (22) are connected to the electric rotating rod (21); the second motor (7) is connected to a second rotating shaft (8) on the side close to the side plate (2) ), the second rotating shaft (8) is arranged between the side plates (2), a plurality of pressure rods (9) are connected to the second rotating shaft (8), the ends of the pressure rods (9) away from the second rotating shaft (8) are in contact with the filter plate (28), a bracket (10) is installed between the side plates (2), a through groove (24) is provided on the bracket (10), the through groove (24) longitudinally penetrates the bracket (10), the filter plate (28) is arranged in the through groove (24), the bracket ( 10) Grooves (25) are provided on both sides of the inner wall, and both sides of the filter plate (28) are slidably connected to the grooves (25); a groove (12) is provided on the side of the base (1) close to the filter plate (28), and a push plate (14) is arranged in the groove (12); a cylinder (11) is installed on one side of the base (1), and a push rod (13) is connected to the cylinder (11), and the end of the push rod (13) away from the cylinder (11) is connected to the push plate (14).

3. A 3D printing silica sand preparation system according to claim 2, characterized in that: The roller (5) is provided with connecting grooves (17) on both sides. The connecting groove (17) passes through the roller (5) transversely. One end of the connecting groove (17) extends to the inside of the cover plate (6). The latch (19) and the screw rod (18) are both arranged in the connecting groove (17).

4. A 3D printing silica sand preparation system according to claim 2, characterized in that: A first elastic component (20) is connected inside the cover plate (6), and one end of the first elastic component (20) away from the cover plate (6) is connected to the latch (19).

5. A 3D printing silica sand preparation system according to claim 2, characterized in that: A scraper (23) is connected to the side of the stirring rod (22) away from the electric rotating rod (21), and the side of the scraper (23) away from the stirring rod (22) is in contact with the inner wall of the drum (5).

6. A 3D printing silica sand preparation system according to claim 2, characterized in that: The second rotating shaft (8) is arranged between the bracket (10) and the base (1), and one end of the pressure rod (9) away from the second rotating shaft (8) is processed into a curved surface.

7. A 3D printing silica sand preparation system according to claim 2, characterized in that: Both sides of the filter plate (28) are connected to sliders (26), one side of the slider (26) is connected to a second elastic component (27), and the second elastic component (27), the side of the second elastic component (27) away from the slider (26) is connected to the groove (25).

8. A 3D printing silica sand preparation system according to claim 2, characterized in that: The side surfaces of the push plate (14) are in contact with the inner wall of the groove (12), and both sides of the push plate (14) are slidably connected to the inner wall of the groove (12).

9. A 3D printing silica sand preparation system according to claim 2, characterized in that: Slide grooves (15) are provided on both sides of the inner wall of the groove (12), guide rods (16) are connected to the slide grooves (15), and both sides of the push plate (14) are connected to the guide rods (16).

10. A 3D printing silica sand preparation system according to claim 2, characterized in that: The width of the groove (12) is equal to the width of the through groove (24), and the filter plate (28) corresponds vertically to the groove (12).

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