Wet-mixed mortar screening mechanism

By introducing coarse screen plates and fine screen plates in the wet-mixed mortar sand screening machine, and using the design of moving blocks and scrapers, the problem of mortar blocking blocks is solved, efficient screening and cleaning is achieved, and production efficiency and product quality are improved.

CN223171336UActive Publication Date: 2025-08-01GUANGZHOU LIURUN BUILDING MATERIALS CO LTD
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Patent Information

Application Number
CN202421416744.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-20
Publication Date
2025-08-01
Estimated Expiration
2034-06-20

AI Technical Summary

Technical Problem

The wet-mixed mortar sand screening machine can easily cause sand to accumulate and block the screen at high water content, and it is easy to stack when feeding, affecting the screening efficiency.

Method used

A wet-mixed mortar sand screening mechanism is designed, using a coarse screen plate and a fine screen plate combined with a vibrating motor, and is combined with the synergy of moving blocks, worms, screws and scrapers to ensure uniform distribution of the mortar, and clean and stack up through the scraper to avoid clogging. At the same time, insert plates, square blocks and insert rods are set up to facilitate cleaning of the screen plate.

Benefits of technology

Improve screening efficiency and continuity, ensure the cleanliness and efficiency of the screening process, reduce cleaning time and labor costs, and improve production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223171336U_ABST
    Figure CN223171336U_ABST
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Abstract

The utility model discloses a wet-mixed mortar screening mechanism which comprises a machine body and a feeding hopper arranged above the machine body, a coarse screening plate is arranged in the machine body, a fine screening plate is arranged below the coarse screening plate, two screws are arranged on the front face and the rear face above the coarse screening plate and the fine screening plate respectively, one end of each screw is provided with a worm wheel, and the other end of each screw is provided with a worm gear. A worm is arranged at the bottom of the worm gear, a shell is arranged on the outer sides of the worm and the worm gear, a driving motor is arranged at one end of the worm, the driving motor is externally connected with a power source to supply power, moving blocks are arranged on the screw, a cross beam is arranged between the moving blocks, a sweeping block is arranged above the cross beam, and a scraping plate is arranged at the bottom of the cross beam. Through the arrangement of the mechanism, mortar accumulated on the coarse screen plate can be bulldozed and uniformly spread by the scraper plate in the mechanism, so that uniform distribution of the mortar in the screening process is ensured, the screening effect is improved, and meanwhile, the problem that the mortar blocks to block the screen plate is avoided.
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Description

Technical Field

[0001] The utility model belongs to the technical field related to construction equipment, and particularly relates to a wet mortar sand screening mechanism. Background Art

[0002] A wet mortar sand screening machine is a device used to screen impurities and particles in wet concrete mortar. It is usually used in concrete mixing plants or mortar mixing plants. After sand is mined, it is often a mixture of coarse sand and fine sand. During use, it needs to be screened to select suitable sand to improve the quality and performance of the mortar. The working principle of this machine is to separate the particles and impurities in the mortar by vibrating the screen mesh. By different specifications of screen holes and vibration frequencies, different screening effects can be achieved, so as to ensure the quality and uniformity of the mortar. The wet mortar sand screening machine plays a very important role in the production process of concrete and mortar, which can improve production efficiency, reduce waste generation, and ensure product quality.

[0003] However, due to the large water content in the mortar, the sand will agglomerate, which will block the screen mesh. Moreover, when the mortar is fed into the hopper, it is easy to cause stacking of the mortar, making it difficult to screen, thus affecting the screening efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a wet mortar sand screening mechanism to solve the problems mentioned in the above background art, that is, due to the large water content in the mortar, the sand will agglomerate, which will block the screen mesh, and when the mortar is fed into the hopper, it is easy to cause stacking of the mortar, making it difficult to screen, thus affecting the screening efficiency.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A wet mortar sand screening mechanism, including a machine body and a feeding hopper arranged above the machine body;

[0006] A coarse screen plate is arranged inside the machine body, a fine screen plate is arranged below the coarse screen plate, a bottom sliding plate is arranged below the fine screen plate. Springs are respectively arranged at the four corners of the bottom of the coarse screen plate and the fine screen plate, a fixed rod is arranged below the springs, and vibration motors are arranged at the bottom of the coarse screen plate and the fine screen plate. The vibration motors are externally connected to a power supply for power supply;

[0007] Two screws are respectively arranged in front of and behind the coarse screen plate and the fine screen plate above. One end of the screw is provided with a worm gear, a worm is arranged at the bottom of the worm gear, a housing is arranged outside the worm and the worm gear, a driving motor is arranged at one end of the worm, the driving motor is externally connected to a power supply for power supply, a moving block is arranged on the screw, a cross beam is arranged between the moving blocks, a cleaning block is arranged above the cross beam, and a scraping plate is arranged at the bottom of the cross beam.

[0008] Preferably, the screw rod is rotatably connected to the machine body, the worm gear is integrally connected to the screw rod, and the worm gear meshes with the worm.

[0009] Preferably, the worm is rotatably connected to the outer shell, the worm is fixedly connected to the driving motor, and the driving motor is fixedly installed on the outer shell.

[0010] Preferably, the moving block is threadedly connected to the screw rod. Rotating rods are respectively arranged at both ends of the cross beam. The rotating rods are welded to the cross beam. The cross beam is inserted into the moving block through the rotating rods. The insertion holes of the rotating rods are located above the threaded holes of the moving block.

[0011] Preferably, the scraping plate is welded to the cross beam, the cleaning block is fixedly connected to the cross beam. A square block is arranged at one end of the rotating rod. The square block is welded to the rotating rod. Insertion holes are arranged on the square block.

[0012] Preferably, a pair of insertion plates are arranged on the moving block. The insertion plates are welded to the moving block. Insertion holes are also arranged on the insertion plates. Insertion rods are arranged on the insertion plates. The insertion rods can be pulled out from the insertion plates. The insertion rods can be inserted together with the insertion plates and the square block.

[0013] Preferably, openings are arranged on the inner walls of the machine body on the left sides of the coarse sieve plate and the fine sieve plate. A side sliding plate is arranged on the left outer side of the machine body. The side sliding plate is fixedly installed on the machine body. The sand and gravel on the coarse sieve plate and the fine sieve plate can slide out through the openings and the side sliding plate.

[0014] Compared with the prior art, the utility model provides a wet-mixed mortar sand screening mechanism, which has the following beneficial effects:

[0015] 1. Through the cooperation of components such as the moving block, the worm, and the screw rod, the scraping plate can push and flatten the mortar piled up on the coarse sieve plate and spread it evenly, ensuring the uniform distribution of the mortar during the screening process, improving the screening effect, and at the same time avoiding the problem of mortar caking and blocking the sieve plate. Combined with the vibration of the coarse sieve plate and the fine sieve plate, the mortar can be screened more efficiently, ensuring the continuity and high efficiency of the screening process. The movement of the scraping plate can directly remove the screened sand and gravel to the opening on the side of the machine body, avoiding the situation of the sand and gravel piling up on the sieve plate again, keeping the screening process clean and orderly. The design of the bottom sliding plate enables the screened mortar to flow out of the machine body conveniently, facilitating subsequent collection and treatment, and improving the convenience of production operations.

[0016] 2. By setting components such as the insertion plate, square block, jack, insertion rod, and cleaning block, it is possible to conveniently clean the coarse sieve plate and fine sieve plate in the mortar screening mechanism, thereby ensuring the normal operation of the equipment and the screening effect. The operator can easily pull out the insertion rod, rotate the cleaning block, clean the panel, and refix the mechanism, reducing the time and labor costs of the cleaning process. This helps to improve the overall usage efficiency and productivity of the equipment. Regularly cleaning the mortar lumps on the coarse sieve plate and fine sieve plate can ensure the screening effect, and a clean sieve plate can ensure that the materials are correctly screened, thereby improving the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0018] Figure 2 It is a schematic diagram of the crossbeam structure of the present utility model.

[0019] Figure 3 of the present utility model Figure 1 schematic diagram of the partial structure.

[0020] In the figure: 1, body; 2, feed hopper; 3, bottom sliding plate; 4, side sliding plate; 5, screw; 6, coarse sieve plate; 7, spring; 8, vibration motor; 9, fixed rod; 10, fine sieve plate; 11, drive motor; 12, moving block; 13, worm; 14, housing; 15, worm gear; 16, rotating rod; 17, jack; 18, square block; 19, scraper; 20, crossbeam; 21, insertion plate; 22, insertion rod; 23, cleaning block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] The present utility model provides a Figures 1 - 3 shown wet-mixed mortar screening mechanism, including a body 1 and a feed hopper 2 arranged above the body 1;

[0023] Inside the body 1, a coarse sieve plate 6 is provided. Below the coarse sieve plate 6, a fine sieve plate 10 is provided. Below the fine sieve plate 10, a bottom sliding plate 3 is provided. Springs 7 are respectively arranged at the four corners of the bottom of the coarse sieve plate 6 and the fine sieve plate 10. Below the springs 7, fixed rods 9 are provided. A vibration motor 8 is arranged at the bottom of the coarse sieve plate 6 and the fine sieve plate 10, and the vibration motor 8 is externally connected to a power supply for power supply;

[0024] Above the coarse sieve plate 6 and the fine sieve plate 10, two screw rods 5 are respectively arranged at the front and the back. One end of the screw rod 5 is provided with a worm gear 15. The bottom of the worm gear 15 is provided with a worm 13. The outside of the worm 13 and the worm gear 15 is provided with a housing 14. One end of the worm 13 is provided with a driving motor 11. The driving motor 11 is externally connected to a power supply for power supply. A moving block 12 is arranged on the screw rod 5. A cross beam 20 is arranged between the moving blocks 12. A cleaning block 23 is arranged above the cross beam 20. A scraping plate 19 is arranged at the bottom of the cross beam 20.

[0025] In this embodiment, the wet-mixed mortar sieve sanding machine is a device for screening impurities and particles in wet concrete mortar. The working principle of this machine is to vibrate the coarse sieve plate 6 and the fine sieve plate 10 through a vibration motor 8 to separate the particles and impurities in the sand. Through the sieve holes of different specifications on the coarse sieve plate 6 and the fine sieve plate 10, different screening effects can be achieved, so as to ensure the quality and uniformity of the mortar. The wet-mixed mortar sieve sanding machine plays a very important role in the production process of concrete and mortar, which can improve production efficiency, reduce waste generation, and ensure product quality. The usage method of this wet-mixed mortar sieve sanding mechanism is as follows. First, the worker needs to pre-start the vibration motor 8 to vibrate the coarse sieve plate 6 and the fine sieve plate 10. Then, the mortar can be fed into the screening mechanism through the feed hopper 2. Through the vibration screening of the coarse sieve plate 6 and the fine sieve plate 10, the coarse sand and fine sand in the mortar can be filtered and screened, and finally the screened mortar is discharged through the side sliding plate 4 and the bottom sliding plate 3.

[0026] As Figure 1 and Figure 2 As shown, the screw rod 5 is rotatably connected to the machine body 1. The worm gear 15 is integrally connected to the screw rod 5. The worm gear 15 meshes with the worm 13. The worm 13 is rotatably connected to the housing 14. The worm 13 is fixedly connected to the driving motor 11. The driving motor 11 is fixedly installed on the housing 14. The moving block 12 is threadedly connected to the screw rod 5. The cross beam 20 is respectively provided with a rotating rod 16 at both ends. The rotating rod 16 is welded to the cross beam 20. The cross beam 20 is inserted into the moving block 12 through the rotating rod 16. The insertion hole of the rotating rod 16 is located above the threaded hole of the moving block 12. The scraping plate 19 is welded to the cross beam 20. The cleaning block 23 is fixedly connected to the cross beam 20. One end of the rotating rod 16 is provided with a square block 18. The square block 18 is welded to the rotating rod 16. The square block 18 is provided with an insertion hole 17. Openings are provided on the inner walls of the machine body 1 on the left sides of the coarse sieve plate 6 and the fine sieve plate 10. A side sliding plate 4 is arranged on the left outside of the machine body 1. The side sliding plate 4 is fixedly installed on the machine body 1. The sand and gravel on the coarse sieve plate 6 and the fine sieve plate 10 can slide out from the openings and the side sliding plate 4.

[0027] Preferably, through the settings of the moving block 12, screw rod 5, scraper 19, worm gear 15, worm 13 and drive motor 11, after the worker pours the mortar into the machine body 1 through the feed hopper 2, the mortar will stack on the coarse sieve plate 6. At this time, it is necessary to start the drive motor 11. The drive motor 11 can drive the worm 13 to rotate, and through the meshing of the worm 13 and the worm gear 15, drive the screw rod 5 to rotate. Since the moving block 12 is threadedly connected to the screw rod 5, the moving block 12 can move on the screw rod 5. When the moving block 12 moves, it will drive the middle scraper 19. The scraper 19 will push the stacked mortar on the coarse sieve plate 6 flat and spread the mortar on the coarse sieve plate 6 through back-and-forth movement. Then, through the vibration of the coarse sieve plate 6, the mortar on the sieve plate can be screened more efficiently, and at the same time, it can also prevent the mortar from caking and blocking the sieve plate. After the mortar is screened, the scraper 19 moves to the left to scrape the screened sand and gravel on the coarse sieve plate 6 and the fine sieve plate 10 out of the machine body 1 directly through the side opening, so that it slides out of the machine body 1 through the side sliding plate 4, avoiding the accumulation of sand and gravel on the sieve plate and affecting the subsequent screening work. The bottom sliding plate 3 can make the filtered mortar flow out of the machine body 1, facilitating the collection of the mortar.

[0028] As Figure 1 , Figure 2 and Figure 3 shown, a pair of inserting plates 21 are arranged on the moving block 12. The inserting plates 21 are welded to the moving block 12. Insertion holes 17 are also arranged on the inserting plates 21. Inserting rods 22 are arranged on the inserting plates 21. The inserting rods 22 can be pulled out from the inserting plates 21, and the inserting rods 22 can be inserted together with the inserting plates 21 and the square blocks 18.

[0029] Preferably, through the settings of the inserting plates 21, square blocks 18, insertion holes 17, inserting rods 22 and cleaning blocks 23, after the mechanism finishes screening the mortar, in order to clean the coarse sieve plate 6 and the fine sieve plate 10 of the mechanism, the inserting rods 22 inserted in the insertion holes 17 can be pulled out, and by rotating the cross beam 20, the cleaning blocks 23 above the cross beam 20 can be rotated to the lower part, and then the square blocks 18 and the inserting plates 21 can be inserted and fixed together through the inserting rods 22. Then, starting the drive motor 11 can make the cross beam 20 drive the cleaning blocks 23 to clean the surfaces of the coarse sieve plate 6 and the fine sieve plate 10. Cooperating with external water supply, the caked mortar on the coarse sieve plate 6 and the fine sieve plate 10 can be cleaned, ensuring the subsequent screening effect.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A wet-mixed mortar sand screening mechanism, comprising a machine body (1) and a feed hopper (2) arranged above the machine body (1); A coarse sieve plate (6) is arranged inside the machine body (1), a fine sieve plate (10) is arranged below the coarse sieve plate (6), a bottom sliding plate (3) is arranged below the fine sieve plate (10), springs (7) are respectively arranged at the four corners of the bottom of the coarse sieve plate (6) and the fine sieve plate (10), a fixing rod (9) is arranged below the springs (7), a vibration motor (8) is arranged at the bottom of the coarse sieve plate (6) and the fine sieve plate (10), and the vibration motor (8) is externally connected to a power supply for power supply; It is characterized in that: Two screw rods (5) are respectively arranged in front of and behind the coarse sieve plate (6) and the fine sieve plate (10) above. One end of the screw rod (5) is provided with a worm gear (15), a worm (13) is arranged at the bottom of the worm gear (15), a housing (14) is arranged outside the worm (13) and the worm gear (15), one end of the worm (13) is provided with a driving motor (11), the driving motor (11) is externally connected to a power supply for power supply, a moving block (12) is arranged on the screw rod (5), a cross beam (20) is arranged between the moving blocks (12), a cleaning block (23) is arranged above the cross beam (20), and a scraping plate (19) is arranged at the bottom of the cross beam (20).

2. The sand screening mechanism for wet-mixed mortar according to claim 1, characterized in that: The screw rod (5) is rotatably connected to the machine body (1), the worm gear (15) is integrally connected to the screw rod (5), and the worm gear (15) meshes with the worm (13).

3. The sand screening mechanism for wet-mixed mortar according to claim 2, characterized in that: The worm (13) is rotatably connected to the housing (14), the worm (13) is fixedly connected to the driving motor (11), and the driving motor (11) is fixedly installed on the housing (14).

4. A sand screening mechanism for wet-mixed mortar according to claim 3, characterized in that: The moving block (12) is threadedly connected to the screw rod (5). Rotating rods (16) are respectively arranged at both ends of the cross beam (20). The rotating rods (16) are welded to the cross beam (20). The cross beam (20) is inserted into the moving block (12) through the rotating rods (16). The insertion holes of the rotating rods (16) are located above the threaded holes of the moving block (12).

5. The screening mechanism for wet-mixed mortar according to claim 4, characterized in that: The scraping plate (19) is welded to the cross beam (20), the cleaning block (23) is fixedly connected to the cross beam (20), a square block (18) is arranged at one end of the rotating rod (16), the square block (18) is welded to the rotating rod (16), and an insertion hole (17) is arranged on the square block (18).

6. The screening mechanism for wet-mixed mortar according to claim 1, characterized in that: A pair of insertion plates (21) are arranged on the moving block (12). The insertion plates (21) are welded to the moving block (12). Insertion holes (17) are also arranged on the insertion plates (21). An insertion rod (22) is arranged on the insertion plates (21). The insertion rod (22) can be pulled out from the insertion plates (21), and the insertion rod (22) can be inserted together with the insertion plates (21) and the square block (18).

7. The screening mechanism for wet-mixed mortar according to claim 1, wherein: Openings are provided on the inner wall of the machine body (1) on the left side of the coarse sieve plate (6) and the fine sieve plate (10). A side sliding plate (4) is provided on the outer side of the left side of the machine body (1). The side sliding plate (4) is fixedly installed with the machine body (1). The sand and gravel on the coarse sieve plate (6) and the fine sieve plate (10) can slide out from the openings and the side sliding plate (4).