Sieving structure for quartz sand production

By designing a screen vibration and material ejection mechanism, the problem of material accumulation caused by screen fixation was solved, thereby improving the screening effect and timely removal of materials in quartz sand production and increasing production efficiency.

CN224087280UActive Publication Date: 2026-04-07ZHONGSHENG ENGINEERING CONSTRUCTION (GUANGDONG) GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

In existing quartz sand production screening equipment, the fixed screen leads to material accumulation, resulting in poor screening effect, and the unscreened material cannot be removed in a timely manner.

Method used

A screening structure was designed that includes screen vibration and material ejection. The screen vibration is caused by a motor-driven sprocket and cam mechanism, and the automatic removal of materials is achieved by combining a scraper and sealing plate structure.

Benefits of technology

It improves the screening effect, prevents material accumulation, ensures that materials enter the storage bin in a timely manner, and improves the efficiency of quartz sand production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of quartz sand screening, and discloses a screening structure for quartz sand production, which comprises a box body, the top of the box body is fixedly provided with a feed inlet, the outer wall of the box body is fixedly provided with a protective shell I, and the inner wall of the box body is respectively connected with a first storage box and a second storage box in a sliding manner; and a material passing channel is formed in the inner wall of the box body, a sealing plate is slidably connected to the inner wall of the material passing channel, and a scraping plate is slidably connected to the inner wall of the box body. By starting a second motor, the second motor drives a rotating rod to rotate, the rotating rod drives a cam to rotate, then a protrusion on the outer wall of the cam rotates, when the protrusion on the outer wall of the cam rotates to one side of a connecting rod, the cam extrudes the connecting rod, then the connecting rod drives the screen to move, and when the protrusion of the cam is separated from the connecting rod, the screen is separated from the screen. And a spring II resets the structure, and the screen continuously moves through continuous rotation of the cam, so that the contact area between the screen and the quartz sand is increased.
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Description

Technical Field

[0001] This utility model relates to the field of quartz sand screening technology, specifically a screening structure for quartz sand production. Background Technology

[0002] Quartz sand is quartz particles produced by crushing and screening quartz stone.

[0003] In actual use, the existing screening devices for quartz sand production have screens fixed inside the equipment, which causes material to accumulate on the screen, thus reducing the screening effect. At the same time, unscreened material will accumulate on top of the screen and cannot be removed in time, resulting in material accumulation on the screen. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a screening structure for quartz sand production, which has the advantages of screen vibration and material ejection, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a screening structure for quartz sand production, comprising a box body, a feed inlet fixedly installed on the top of the box body, a protective shell fixedly installed on the outer wall of the box body, a first storage box and a second storage box slidably connected to the inner wall of the box body, a material passage opened on the inner wall of the box body, a sealing plate slidably connected to the inner wall of the material passage, a scraper slidably connected to the inner wall of the box body, a second protective shell fixedly installed on the outer wall of the box body, a screen slidably connected to the inner wall of the box body, and a connecting rod fixedly installed on the outer wall of the screen. A motor is fixedly installed on the outer wall of the first protective shell. A sprocket is fixedly installed on the output shaft of the first motor. A chain is rotatably sleeved on the outer wall of the sprocket. A threaded rod is fixedly installed on the side of the sprocket away from the first motor. An extension block is fixedly installed on the outer wall of the scraper. A connecting column is fixedly installed on the outer wall of the sealing plate. A spring is provided on the inner wall of the box. A motor is fixedly installed on the outer wall of the second protective shell. A rotating rod is fixedly installed on the output shaft of the second motor. A cam is fixedly installed on the outer wall of the rotating rod. A spring is provided on the inner wall of the second protective shell.

[0006] As a preferred technical solution of this utility model: the material passage penetrates the inner wall of the box, and the bottom of the sealing plate is attached to the bottom of the screen, and the outer sides and top of the sealing plate are attached to the inner wall of the material passage.

[0007] As a preferred technical solution of this utility model: the diameter of the end of the connecting column away from the sealing plate is larger than the diameter of the end near the sealing plate, and the end of the connecting column away from the sealing plate is located inside the housing near the spring. The connecting column overlaps with the spring, and the height of the sealing plate is the same as the height of the scraper on the side near the sealing plate.

[0008] As a preferred technical solution of this utility model: the threaded rod passes through the extension block, and the threaded rod and the extension block are connected by a thread.

[0009] As a preferred technical solution of this utility model: the cam and the connecting rod are at the same height, and the end of the connecting rod away from the screen extends through to the inner wall of the second protective shell. The second spring is sleeved on the outer wall of the connecting rod, and the diameter of the end of the connecting rod away from the screen is larger than that of the end near the screen.

[0010] As a preferred technical solution of this utility model: the number of sprockets and threaded rods is two, and the two sprockets and threaded rods are symmetrically arranged, and the two sprockets are respectively located at both ends of the inner wall of the chain.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This screening structure for quartz sand production works by starting motor 2, which in turn drives a rotating rod to rotate. The rotating rod then drives a cam to rotate, causing the protrusion on the outer wall of the cam to rotate. When the protrusion rotates to one side of the connecting rod, the cam presses against the connecting rod, causing the connecting rod to move the screen. When the protrusion on the cam separates from the connecting rod, spring 2 resets the structure. Through the continuous rotation of the cam, the screen moves continuously, thereby increasing the contact area between the screen and the quartz sand.

[0013] 2. This screening structure for quartz sand production works by starting motor one, which in turn drives a sprocket to rotate. The sprocket drives a chain to rotate, which in turn drives two sprockets to rotate. The two sprockets drive two threaded rods to rotate, which in turn drive an extension block to move. This causes the scraper to move towards the sealing plate. The movement of the sealing plate scrapes the material accumulated on top of the screen towards the sealing plate, which in turn pushes the sealing plate. This causes the sealing plate to move the connecting column towards the inner wall of the housing, which in turn contracts spring one. This causes the sealing plate to enter the material passage, and the scraper to enter the material passage. The scraper then scrapes the material to the top of the material passage, and the material enters the second storage box through the material passage. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic cross-sectional view of the present invention.

[0016] Figure 3 This is a schematic diagram of the threaded rod structure of this utility model;

[0017] Figure 4This is a schematic diagram of the protective shell structure of this utility model;

[0018] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0019] Figure 6 This utility model Figure 3 Enlarged structural diagram at point B;

[0020] Figure 7 This utility model Figure 4 Enlarged structural diagram at point C.

[0021] In the diagram: 1. Box body; 2. Feed inlet; 3. Protective shell one; 4. First storage box; 5. Second storage box; 6. Material passage; 7. Sealing plate; 8. Scraper; 9. Protective shell two; 10. Screen; 11. Connecting rod; 12. Threaded rod; 13. Motor one; 14. Sprocket; 15. Chain; 16. Extension block; 17. Connecting column; 18. Spring one; 19. Rotating rod; 20. Cam; 21. Spring two; 22. Motor two. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 - Figure 7A screening structure for quartz sand production includes a housing 1, a feed inlet 2 fixedly installed on the top of the housing 1, a protective shell 3 fixedly installed on the outer wall of the housing 1, a first storage box 4 and a second storage box 5 slidably connected to the inner wall of the housing 1, a material passage 6 opened on the inner wall of the housing 1, a sealing plate 7 slidably connected to the inner wall of the material passage 6, a scraper 8 slidably connected to the inner wall of the housing 1, a second protective shell 9 fixedly installed on the outer wall of the housing 1, a screen 10 slidably connected to the inner wall of the housing 1, a connecting rod 11 fixedly installed on the outer wall of the screen 10, and a connecting rod 11 fixedly installed on the outer wall of the first protective shell 3. There is a motor 13, and a sprocket 14 is fixedly installed on the output shaft of the motor 13. A chain 15 is rotatably sleeved on the outer wall of the sprocket 14. A threaded rod 12 is fixedly installed on the side of the sprocket 14 away from the motor 13. An extension block 16 is fixedly installed on the outer wall of the scraper 8. A connecting column 17 is fixedly installed on the outer wall of the sealing plate 7. A spring 18 is provided on the inner wall of the housing 1. A motor 22 is fixedly installed on the outer wall of the protective shell 2 9. A rotating rod 19 is fixedly installed on the output shaft of the motor 22. A cam 20 is fixedly installed on the outer wall of the rotating rod 19. A spring 21 is provided on the inner wall of the protective shell 2 9.

[0024] In the above structure, the material enters the material passage 6 through the material passage 6, and then falls downward through the material passage 6, thereby entering the second storage box 5.

[0025] In a preferred embodiment: the material passage 6 penetrates the inner wall of the box 1, and the bottom of the sealing plate 7 is attached to the bottom of the screen 10, while the outer sides and top of the sealing plate 7 are attached to the inner wall of the material passage 6.

[0026] In the above structure, the connection between the material passage 6 and the box 1 is sealed by the sealing plate 7, so that the material inside the box 1 will not enter the material passage 6 through the gap between the sealing plate 7 and the material passage 6. The sealing plate 7 and the screen 10 are adhered to each other, so that the material will not enter the material passage 6 through the gap between the sealing plate 7 and the screen 10.

[0027] In a preferred embodiment: the diameter of the end of the connecting post 17 away from the sealing plate 7 is larger than the diameter of the end near the sealing plate 7, and the end of the connecting post 17 away from the sealing plate 7 is located inside the housing 1 near the spring 18. The connecting post 17 overlaps with the spring 18, and the height of the sealing plate 7 is the same as the height of the scraper 8 on the side near the sealing plate 7.

[0028] In the above structure, the scraper 8 moves towards the sealing plate 7, thereby making the scraper 8 fit with the sealing plate 7. The continued movement of the scraper 8 pushes the sealing plate 7 towards the connecting column 17, thereby causing the sealing plate 7 to drive the connecting column 17 to move towards the inner wall of the box 1, thereby causing the spring 18 to contract, and causing the sealing plate 7 to enter the interior of the material passage 6.

[0029] In a preferred embodiment, the threaded rod 12 passes through the extension block 16, and the threaded rod 12 and the extension block 16 are threadedly connected.

[0030] In the above structure, by starting the motor 13, the motor 13 drives the sprocket 14 to rotate, which in turn drives the threaded rod 12 to rotate. The threaded connection between the threaded rod 12 and the extension block 16 drives the extension block 16 to move, which in turn drives the scraper 8 to move.

[0031] In a preferred embodiment: the cam 20 is at the same height as the connecting rod 11, and the end of the connecting rod 11 away from the screen 10 extends through the inner wall of the second protective shell 9. The second spring 21 is sleeved on the outer wall of the connecting rod 11, and the diameter of the end of the connecting rod 11 away from the screen 10 is larger than the diameter of the end close to the screen 10.

[0032] In the above structure, by starting motor 22, motor 22 drives rotating rod 19 to rotate, which in turn drives cam 20 to rotate. The rotation of cam 20 causes the protrusion on the outer wall of cam 20 to rotate. When the protrusion rotates to one side of connecting rod 11, connecting rod 11 is squeezed by the protrusion on the outer wall of cam 20, which causes connecting rod 11 to move towards screen 10, thus causing screen 10 to move. At this time, spring 21 is squeezed. When the protrusion of cam 20 separates from connecting rod 11, the spring 21 returns the structure to its original position. Thus, through the continuous rotation of cam 20, screen 10 continuously reciprocates.

[0033] In a preferred embodiment, there are two sprockets 14 and two threaded rods 12, and the two sprockets 14 and the threaded rods 12 are symmetrically arranged, and the two sprockets 14 are located at both ends of the inner wall of the chain 15.

[0034] In the above structure, by starting motor 13, motor 13 drives sprocket 14 to rotate, which in turn drives chain 15 to rotate. Chain 15 drives two sprockets 14 to rotate simultaneously, which in turn drives two threaded rods 12 to rotate simultaneously.

[0035] Working principle: The feed inlet 2 conveys quartz sand into the interior of the housing 1, where it falls onto the top of the screen 10. At this time, motor 22 is started, causing the rotating rod 19 to rotate. This, in turn, causes the cam 20 to rotate. The rotation of the cam 20 causes the protrusion on its outer wall to rotate. When the protrusion rotates to one side of the connecting rod 11, the connecting rod 11 is pressed by the protrusion on the outer wall of the cam 20, causing the connecting rod 11 to move the screen 10. During this movement, spring 21 is compressed. When the protrusion of the cam 20 separates from the connecting rod 11, the spring 21 returns the structure to its original position. The continuous rotation of the cam 20 causes the screen 10 to move continuously. This movement of the screen 10 causes the material above it to sway, increasing the contact area between the quartz sand and the screen 10. This increases the screening effect of quartz sand. After screening, motor 13 is started, which drives sprocket 14 to rotate, which in turn drives chain 15 to rotate. Chain 15 drives two sprockets 14 to rotate simultaneously, which in turn drives two threaded rods 12 to rotate simultaneously. The scraper 8 moves towards the sealing plate 7, which scrapes the material on the top of the screen 10. The movement of the scraper 8 pushes the sealing plate 7 towards the connecting column 17, which in turn drives the connecting column 17 to move towards the inner wall of the box 1. This causes the spring 18 to contract, allowing the sealing plate 7 to enter the material passage 6, and the scraper 8 to enter the material passage 6. The scraper 8 scrapes the material to the top of the material passage 6, and the material then enters the second storage box 5 through the material passage 6.

[0036] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screening structure for quartz sand production, comprising a housing (1), characterized in that: A feed inlet (2) is fixedly installed on the top of the box (1). A protective shell (3) is fixedly installed on the outer wall of the box (1). A first storage box (4) and a second storage box (5) are slidably connected to the inner wall of the box (1). A material passage (6) is opened on the inner wall of the box (1). A sealing plate (7) is slidably connected to the inner wall of the material passage (6). A scraper (8) is slidably connected to the inner wall of the box (1). A second protective shell (9) is fixedly installed on the outer wall of the box (1). A screen (10) is slidably connected to the inner wall of the box (1). A connecting rod (11) is fixedly installed on the outer wall of the screen (10). A motor (13) is fixedly installed on the outer wall of the first protective shell (3). A sprocket (14) is fixedly installed on the output shaft of the first motor (13). A chain (15) is rotatably sleeved on the outer wall of the sprocket (14). A threaded rod (12) is fixedly installed on the side of the sprocket (14) away from the first motor (13). An extension block (16) is fixedly installed on the outer wall of the scraper (8). A connecting column (17) is fixedly installed on the outer wall of the sealing plate (7). A spring (18) is provided on the inner wall of the housing (1). A second motor (22) is fixedly installed on the outer wall of the second protective shell (9). A rotating rod (19) is fixedly installed on the output shaft of the second motor (22). A cam (20) is fixedly installed on the outer wall of the rotating rod (19). A spring (21) is provided on the inner wall of the second protective shell (9).

2. The sieving structure for quartz sand production according to claim 1, characterized in that: The material passage (6) penetrates the inner wall of the box (1), and the bottom of the sealing plate (7) is attached to the bottom of the screen (10). The outer sides and top of the sealing plate (7) are attached to the inner wall of the material passage (6).

3. The sieving structure for quartz sand production according to claim 1, characterized in that: The diameter of the end of the connecting post (17) away from the sealing plate (7) is larger than the diameter of the end near the sealing plate (7), and the end of the connecting post (17) away from the sealing plate (7) is located inside the housing (1) near the spring (18). The connecting post (17) overlaps with the spring (18), and the height of the sealing plate (7) is the same as the height of the scraper (8) on the side near the sealing plate (7).

4. The sieving structure for quartz sand production according to claim 1, characterized in that: The threaded rod (12) passes through the extension block (16), and the threaded rod (12) and the extension block (16) are connected by threads.

5. The sieving structure for quartz sand production according to claim 1, characterized in that: The cam (20) is at the same height as the connecting rod (11), and the end of the connecting rod (11) away from the screen (10) extends through to the inner wall of the second protective shell (9). The second spring (21) is sleeved on the outer wall of the connecting rod (11), and the diameter of the end of the connecting rod (11) away from the screen (10) is larger than the diameter of the end close to the screen (10).

6. The sieving structure for quartz sand production according to claim 1, characterized in that: The number of sprockets (14) and threaded rods (12) is two, and the two sprockets (14) and threaded rods (12) are symmetrically arranged, and the two sprockets (14) are located at both ends of the inner wall of the chain (15).