Uniform sand paving device

Abstract

The utility model relates to the technical field of 3D printers, and provides a uniform sand paving device which comprises a box body, a material distribution box is arranged at the top of the inner side of the box body, a screen is arranged at the bottom of the material distribution box, the inner walls of the two sides of the box body are each in threaded connection with a pair of electric telescopic rods, and the telescopic ends of the electric telescopic rods are fixed to the outer wall of the material distribution box in a threaded connection mode; according to the uniform sand paving device, a pipe for conveying sand is connected with a feeding pipe, so that the sand can fall into a material distribution box, the material distribution box can be pushed to transversely shake by utilizing an electric telescopic rod, the sand can penetrate through a screen and more uniformly fall into a material storage bin in a dispersed manner, a side plate can be driven to vibrate through a vibrator, and the sand can be uniformly paved. The sand in the storage bin can enter the discharging hole conveniently, the sand can be discharged outwards through the conical head, the spreading plate is pushed by the pneumatic push rod to move downwards and make contact with the sand, and when the box body moves, the spreading plate can be driven to flatten the top of the sand in a strickling mode, so that the sand is better and evenly spread.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printers, and in particular to a uniform sand-laying device. Background Art

[0002] 3D printing is a type of rapid prototyping technology, also known as additive manufacturing. It is a technology that uses digital model files as the basis and uses powdered metal or plastic and other bondable materials to construct objects by printing layer by layer. 3D sand printing is currently the mainstream 3D printing technology. When using it, the sand needs to be poured onto the workbench and spread manually. The operation is not convenient enough, and a sand-laying device is needed to replace manual operation to improve work efficiency.

[0003] A Chinese patent discloses a leak-proof sand-spreading device, with the publication number CN212285769U. The patent states that "it includes a negative pressure device, a transmission device, a conical sealing device and a sand-spreading device body, wherein the negative pressure device is installed on the top of the sand-spreading device body, the transmission device is arranged on the inner and outer sides of the sand-spreading device body, and the conical sealing device is arranged on the inner and outer sides of the sand-spreading device body." However, when the prior art is used, it is impossible to flatten the spread sand material, and manual assistance is required, which increases the workload of the staff, is not convenient to use, and has low work efficiency. Therefore, it is necessary to design a uniform sand-spreading device. Utility Model Content

[0004] The utility model aims to provide a uniform sand spreading device, which solves the problem in the related art that the spread sand material cannot be flattened during use and needs to be completed with manual assistance, which increases the workload of the staff.

[0005] The technical solution of the utility model is as follows:

[0006] A uniform sand-laying device comprises a box body, a material distribution box is provided on the inner top of the box body, and a screen is provided on the bottom of the material distribution box, a pair of electric telescopic rods are screwed to the inner walls on both sides of the box body, and the telescopic ends of the electric telescopic rods are screwed and fixed to the outer wall of the material distribution box, feeding pipes are provided on both sides of the top end surface of the box body, and the bottom end of the feeding pipe is located above the top of the material distribution box, a plurality of storage bins are equidistantly provided at the bottom of the inner wall of the box body, and a plurality of discharge holes are equidistantly provided at the bottom end surface of the storage bins, a cone head is welded to the bottom end of the discharge hole, two pneumatic push rods are screwed to the bottom end surface of the box body, and a spreading plate is welded to the telescopic end of the pneumatic push rod, connecting plates are welded on both sides of the spreading plate, hydraulic piston rods are screwed to the outside of both sides of the pneumatic push rod, and the telescopic ends of the two hydraulic piston rods are respectively welded and fixed to two connecting plates.

[0007] Preferably, side panels are installed on both sides of the storage bin, and the bottom of the side panels is connected to the bottom of the inner wall of the storage bin through springs, and a vibrator is provided on the side panels.

[0008] Preferably, guide plates are welded to the inner walls at both ends of the box, push plates are provided inside both sides of the box, and transmission plates are provided on both sides of the push plates, fixed plates are welded to both ends of the bottom of the inner wall of the box, and limiting rods are welded on both sides of a fixing plate, the other end of the limiting rod passes through the transmission plate and is welded to the inner wall of the box, threaded rods are provided on both sides of the other fixing plate, and the other end of the threaded rod passes through the transmission plate and extends to the outside of the box, and the other end of the threaded rod is connected to a motor.

[0009] Preferably, the push plate is in the shape of a vertical right-angled trapezoid.

[0010] Preferably, a lifting frame is provided on the inner top of the box body, and a water pipe is screwed on the bottom of the lifting frame, a plurality of booster nozzles are equidistantly provided on the bottom end face of the water pipe, a water supply pipe is provided on the top of the lifting frame, and a bottom end of the water supply pipe is connected to the inside of the water supply pipe by plug connection.

[0011] Preferably, one end of the top of the water pipe extends to above the top of the box and is provided with a diversion pump, the water pipe is a corrugated telescopic pipe, and the booster nozzle is bent.

[0012] Preferably, a sponge strip is screwed onto the outer wall of the lifting frame, and scrapers are welded around the outer wall of the lifting frame, and the scrapers are located below the bottom of the sponge strip.

[0013] Preferably, a heating tube is screwed onto the top of the inner wall of the box.

[0014] Preferably, pneumatic lifting columns are provided at the four corners of the top of the box body, and the telescopic ends of the pneumatic lifting columns penetrate the box body and are welded and fixed to the top end surface of the lifting frame.

[0015] Preferably, slide rails are provided on both sides above the top of the box body, and a pair of electric wheels are provided on both sides of the top end surface of the box body, and the wheel bodies of the electric wheels are located inside the slide rails.

[0016] Beneficial effects of the utility model:

[0017] 1. By connecting the pipe for conveying sand with the feed pipe, the sand can be dropped into the distribution box. The electric telescopic rod can be used to push the distribution box to shake horizontally, so that the sand can pass through the screen and fall into the storage bin more evenly. The vibrator can drive the side plate to vibrate, which is beneficial for the sand in the storage bin to enter the discharge hole. The cone head can be used to discharge the sand outward, and the pneumatic push rod can be used to push the spreading plate down and contact with the sand. When the box moves, the spreading plate can be driven to scrape the top of the sand so that the sand can be spread more evenly. The hydraulic piston rod can be used to support and reinforce both sides of the spreading plate. This method can scrape the sand while spreading the sand, which is beneficial for even distribution of the sand, reducing manual participation, and making it more convenient and efficient to use, thereby improving the use effect of the equipment.

[0018] 2. By connecting the diversion pump to the water delivery device, water can be guided into the water delivery pipe. The water source can be transported to the inside of the water delivery pipe by the water delivery pipe, and water can be sprayed out from the booster nozzle. The water flow can be used to rinse the inner wall of the box, thereby achieving a cleaning effect. The lifting frame is driven by the pneumatic lifting column to lift and lower, so that the scraper can scrape off the sand adhered to the inner wall of the box. The sponge bar can improve the cleaning effect, and the sponge bar can absorb the moisture on the inner wall of the box. The sand can be kept dry by heating with the heating tube, and the moisture on the inner wall of the box can be dried at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is an isometric view of the entire utility model;

[0021] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 3 It is the overall cross-sectional view a of the utility model;

[0023] Figure 4 This is the overall cross-sectional view b of the utility model;

[0024] In the figure: 1. Box body; 2. Material distribution box; 3. Screen; 4. Electric telescopic rod; 5. Feed pipe; 6. Storage bin; 7. Feeding hole; 8. Cone head; 9. Side plate; 10. Vibrator; 11. Guide plate; 12. Push plate; 13. Transmission plate; 14. Fixed plate; 15. Limit rod; 16. Threaded rod; 17. Motor; 18. Lifting frame; 19. Water guide pipe; 20. Booster nozzle; 21. Water delivery pipe; 22. Diversion pump; 23. Sponge strip; 24. Scraper; 25. Heating pipe; 26. Pneumatic lifting column; 27. Slide rail; 28. Electric wheel; 29. ​​Pneumatic push rod; 30. Spreading plate; 31. Connecting plate; 32. Hydraulic piston rod. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1-4As shown, the present embodiment proposes a uniform sand-laying device, comprising a box body 1, a material distribution box 2 is provided on the inner top of the box body 1, and a screen 3 is provided at the bottom of the material distribution box 2, a pair of electric telescopic rods 4 are screwed to the inner walls on both sides of the box body 1, and the telescopic ends of the electric telescopic rods 4 are screwed and fixed to the outer wall of the material distribution box 2, feeding pipes 5 are provided on both sides of the top end surface of the box body 1, and the bottom end of the feeding pipe 5 is located above the top of the material distribution box 2, a plurality of storage bins 6 are equidistantly provided at the bottom of the inner wall of the box body 1, and a plurality of discharge holes 7 are equidistantly provided at the bottom end surface of the storage bins 6, a cone head 8 is welded to one end of the bottom of the discharge hole 7, two pneumatic push rods 29 are screwed to the bottom end surface of the box body 1, and a spreading plate 30 is welded to the telescopic ends of the pneumatic push rods 29, and two ends of the spreading plate 30 The two sides of the pneumatic push rod 29 are welded with connecting plates 31, the outside of both sides of the pneumatic push rod 29 are screwed with hydraulic piston rods 32, and the telescopic ends of the two hydraulic piston rods 32 are respectively welded and fixed to the two connecting plates 31, side plates 9 are installed on both sides of the storage bin 6, and the bottom of the side plate 9 is connected to the bottom of the inner wall of the storage bin 6 through a spring, and a vibrator 10 is provided on the side plate 9, which can drive the side plate 9 to vibrate, which is beneficial for the sand in the storage bin 6 to enter the feeding hole 7, guide plates 11 are welded on the inner walls of both ends of the box body 1, push plates 12 are provided inside the two sides of the box body 1, and transmission plates 13 are provided on both sides of the push plate 12, and fixed plates 14 are welded on both ends of the bottom of the inner wall of the box body 1, and limit rods 15 are welded on both sides of a fixed plate 14, which limit The other end of the positioning rod 15 passes through the transmission plate 13 and is welded to the inner wall of the box body 1. Threaded rods 16 are provided on both sides of the other fixed plate 14, and the other end of the threaded rod 16 passes through the transmission plate 13 and extends to the outside of the box body 1. The other end of the threaded rod 16 is connected to a motor 17. The threaded rod 16 driven by the motor 17 can use the transmission plate 13 to drive the push plate 12 to move. The limiting rod 15 can play a role in limiting and guiding the push plate 12. The sand material can be pushed into the storage bin 6 by the push plate 12, and the sand material can be guided into the storage bin 6 by the guide plate 11. The push plate 12 is in the shape of a vertical right-angled trapezoid. A lifting frame 18 is provided on the top of the inner side of the box body 1, and a water pipe 19 is screwed to the bottom of the lifting frame 18. The bottom end surface of the water pipe 19 A plurality of booster nozzles 20 are arranged at equal intervals. A water pipe 21 is arranged on the top of the lifting frame 18, and the bottom end of the water pipe 21 is connected to the inside of the water pipe 19 by plugging. Water can be transported to the inside of the water pipe 19 through the water pipe 21, and water is sprayed out from the booster nozzle 20. The inner wall of the box body 1 can be washed by the water flow. The top end of the water pipe 21 extends to the top of the box body 1 and is provided with a diversion pump 22. The water pipe 21 is a corrugated telescopic pipe. The booster nozzle 20 is bent. By connecting the diversion pump 22 to the water delivery device, the water flow can be guided into the water pipe 21. A sponge strip 23 is screwed on the outer wall of the lifting frame 18. Scrapers 24 are welded around the outer wall of the lifting frame 18, and the scrapers 24 are located below the bottom of the sponge strip 23.The scraper 24 can be used to scrape off the sand material adhered to the inner wall of the box 1, and the sponge strip 23 can improve the cleaning effect, and the sponge strip 23 can absorb the moisture on the inner wall of the box 1. The top of the inner wall of the box 1 is screwed with a heating tube 25. The sand material can be kept dry by heating with the heating tube 25. At the same time, the moisture on the inner wall of the box 1 can be dried. Pneumatic lifting columns 26 are provided at the four corners of the top of the box 1, and the telescopic ends of the pneumatic lifting columns 26 penetrate the box 1 and are welded and fixed to the top end face of the lifting frame 18. The lifting frame 18 is driven to rise and fall by the pneumatic lifting columns 26. Slide rails 27 are provided on both sides of the top of the box 1. A pair of electric wheels 28 are provided on both sides of the top end face of the box 1, and the wheel body of the electric wheel 28 is located inside the slide rail 27. The box 1 can be driven to move along the track of the slide rail 27 by the electric wheel 28.

[0027] In the present embodiment, when in use, the slide rail 27 is fixed on the 3D printing workbench, and the electric wheel 28 can be used to drive the box 1 to move along the trajectory of the slide rail 27. By connecting the pipe for conveying sand material with the feed pipe 5, the sand material can be made to fall into the distribution box 2. The electric telescopic rod 4 can be used to push the distribution box 2 to shake horizontally, so that the sand material can pass through the screen 3 and fall into the storage bin 6 in a dispersed manner. The vibrator 10 can drive the side plate 9 to vibrate, which is beneficial for the sand material in the storage bin 6 to enter the discharge hole 7. The cone head 8 can be used to discharge the sand material outward, and the pneumatic push rod 29 can be used to push the spreading plate 30 to move down and contact the sand material. When the box 1 moves, the spreading plate 30 can be driven to scrape the top of the sand material, so that the sand material can be spread more evenly. The hydraulic piston rod 32 can support and reinforce both sides of the spreading plate 30, and the motor 17 drives the thread The rod 16 can use the transmission plate 13 to drive the push plate 12 to move, and the limit rod 15 can play a role in limiting and guiding the push plate 12. The sand material can be pushed into the storage bin 6 by the push plate 12, and the sand material can be guided into the storage bin 6 by the guide plate 11. The water flow can be guided into the water pipe 21 by connecting the diversion pump 22 to the water delivery device. The water source can be delivered to the inside of the water pipe 19 by the water delivery pipe 21, and water can be sprayed from the booster nozzle 20. The inner wall of the box body 1 can be rinsed by the water flow, and the lifting frame 18 can be lifted and lowered by the pneumatic lifting column 26, so that the scraper 24 can scrape off the sand material adhered to the inner wall of the box body 1, and the sponge bar 23 can improve the cleaning effect, and the sponge bar 23 can absorb the moisture on the inner wall of the box body 1. The sand material can be kept dry by heating with the heating tube 25, and the moisture on the inner wall of the box body 1 can be dried at the same time.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A uniform sand spreading device, comprising a box (1), characterized in that: A material distribution box (2) is provided at the top of the inner side of the box (1), and a screen (3) is provided at the bottom of the material distribution box (2). A pair of electric telescopic rods (4) are screwed to the inner walls of both sides of the box (1), and the telescopic ends of the electric telescopic rods (4) are screwed and fixed to the outer wall of the material distribution box (2). Feed pipes (5) are provided on both sides of the top end surface of the box (1), and one end of the bottom of the feed pipe (5) is located above the top of the material distribution box (2). A plurality of storage bins (6) are equidistantly provided at the bottom of the inner wall of the box (1), and the storage bins (6) are ) is provided with a plurality of feeding holes (7) at equal intervals on the bottom end face, a cone head (8) is welded to one end of the bottom of the feeding hole (7), two pneumatic push rods (29) are screwed to the bottom end face of the box body (1), and a spreading plate (30) is welded to the telescopic end of the pneumatic push rod (29), connecting plates (31) are welded to both sides of the spreading plate (30), hydraulic piston rods (32) are screwed to the outside of both sides of the pneumatic push rod (29), and the telescopic ends of the two hydraulic piston rods (32) are respectively welded and fixed to the two connecting plates (31).

2. A uniform sand spreading device according to claim 1, characterized in that: Side plates (9) are installed on both sides of the storage bin (6), and the bottom of the side plates (9) is connected to the bottom of the inner wall of the storage bin (6) through a spring, and a vibrator (10) is provided on the side plates (9).

3. A uniform sand spreading device according to claim 1, characterized in that: Guide plates (11) are welded to the inner walls at both ends of the box body (1), push plates (12) are arranged inside both sides of the box body (1), and transmission plates (13) are arranged on both sides of the push plates (12), fixed plates (14) are welded to both ends of the bottom of the inner wall of the box body (1), and limiting rods (15) are welded to both sides of one fixing plate (14), the other end of the limiting rod (15) penetrates the transmission plate (13) and is welded to the inner wall of the box body (1), threaded rods (16) are arranged on both sides of the other fixing plate (14), and the other end of the threaded rod (16) penetrates the transmission plate (13) and extends to the outside of the box body (1), and the other end of the threaded rod (16) is connected to a motor (17).

4. A uniform sand spreading device according to claim 3, characterized in that: The push plate (12) is in the shape of a vertical right-angled trapezoid.

5. The uniform sand spreading device according to claim 1, characterized in that: A lifting frame (18) is provided at the top of the inner side of the box body (1), and a water pipe (19) is screwed to the bottom of the lifting frame (18), and a plurality of booster nozzles (20) are equidistantly provided on the bottom end surface of the water pipe (19), and a water delivery pipe (21) is provided at the top of the lifting frame (18), and one end of the bottom of the water delivery pipe (21) is plugged and connected to the inside of the water pipe (19).

6. A uniform sand spreading device according to claim 5, characterized in that: One end of the top of the water delivery pipe (21) extends to above the top of the box body (1) and is provided with a diversion pump (22); the water delivery pipe (21) is a corrugated telescopic pipe, and the booster nozzle (20) is bent.

7. The uniform sand spreading device according to claim 5, characterized in that: A sponge strip (23) is screwed onto the outer wall of the lifting frame (18), and scrapers (24) are welded around the outer wall of the lifting frame (18), and the scrapers (24) are located below the bottom of the sponge strip (23).

8. The uniform sand spreading device according to claim 1, characterized in that: The top of the inner wall of the box body (1) is screwed with a heating tube (25).

9. The uniform sand spreading device according to claim 5, characterized in that: Pneumatic lifting columns (26) are provided at the four corners of the top of the box body (1), and the telescopic ends of the pneumatic lifting columns (26) penetrate the box body (1) and are welded and fixed to the top end surface of the lifting frame (18).

10. The uniform sand spreading device according to claim 1, characterized in that: Slide rails (27) are provided on both sides above the top of the box body (1), and a pair of electric wheels (28) are provided on both sides of the top end surface of the box body (1), and the wheel bodies of the electric wheels (28) are located inside the slide rails (27).

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