Building mortar screening device

Abstract

The utility model discloses a building mortar screening device, and belongs to the technical field of mortar screening. A building mortar screening device comprises a screening box and a screening plate installed in the screening box, and further comprises a sliding rail fixedly connected to the outer side of the screening box, a sliding block is installed on the sliding rail in a sliding mode, and a moving part for driving the sliding block to slide along the sliding rail is arranged on the screening box; the mounting frame is mounted on the sliding block, a brush roller is rotationally mounted on the mounting frame through a rotating shaft, a brush is arranged on the circumferential surface of the brush roller, and a driving part for driving the brush to rotate is arranged on the mounting frame; the moving part drives the sliding block to transversely move along the sliding rail, the sliding block drives the brush roller and the brush to synchronously move through the mounting frame, meanwhile, the driving part drives the brush roller and the brush to rotate, the brush moves and cleans the screen plate, mortar particles are prevented from blocking the screen plate, and the screening efficiency and effect are improved.

Description

Technical Field

[0001] This utility model relates to the field of mortar screening technology, and in particular to a mortar screening device for building mortar. Background Technology

[0002] Building mortar is a type of mortar used to bond masonry blocks (bricks, stones, blocks) into a whole. It consists of inorganic cementitious materials, fine aggregates, and water, and sometimes also contains certain admixtures.

[0003] Before using building mortar, it is necessary to classify mortar of different particle sizes through a screening device to obtain mortar raw materials that meet specific specifications. Screening can ensure that the mortar particles are evenly distributed, which helps to improve the strength and bonding performance of the mortar.

[0004] In existing technologies, mortar is mainly screened by using a vibrating screen plate. Larger particles are left on the top of the screen plate, while smaller particles pass through the screen plate and fall into different collection buckets or storage bins. However, after long-term use, mortar particles can easily clog the screen plate apertures, making it difficult for mortar that meets the requirements to pass through the screen plate, resulting in unsatisfactory screening efficiency and effect. Utility Model Content

[0005] The purpose of this invention is to solve the problem that after long-term use, mortar particles easily clog the screen plate apertures, making it difficult for qualified mortar to pass through the screen plate, resulting in unsatisfactory screening efficiency and effect. Therefore, a building mortar screening device is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A mortar screening device includes a screen box and a screen plate installed inside the screen box. It further includes: a slide rail fixedly connected to the outside of the screen box, wherein a slider is slidably mounted on the slide rail, and the screen box is provided with a moving part for driving the slider to slide along the slide rail; and a mounting frame mounted on the slider, wherein a brush roller is rotatably mounted on the mounting frame via a rotating shaft, the brush roller has brushes on its circumferential surface, and the mounting frame is provided with a driving part for driving the brushes to rotate.

[0008] To drive the brush to move laterally, preferably, the moving part includes a first motor fixedly connected to the bottom of the slider, a rotating shaft fixedly connected to the output end of the first motor, a first gear fixedly connected to the rotating shaft, and a toothed plate fixedly connected to the inner wall of the slide rail, with the first gear meshing with the toothed plate.

[0009] To drive the brush to rotate, preferably, the drive unit includes a second motor fixedly connected to the mounting bracket, and the rotating shaft is connected to the output shaft of the second motor via a first belt drive.

[0010] To drive the brush to vibrate laterally, preferably, a guide rod is fixedly connected between the inner walls of the slider, a mounting seat is slidably mounted on the guide rod, the mounting bracket is connected to the mounting seat, a first spring is installed between the mounting seat and the inner wall of the slider, and a cam is fixedly connected to the rotating shaft, the circumferential surface of the cam is in contact with the mounting seat.

[0011] To further remove the brush from the screen box, a second gear is rotatably mounted on the mounting base via a drive shaft. The mounting bracket is fixedly connected to the drive shaft, and a torsion spring is installed between the drive shaft and the mounting base. A rack matching the second gear is fixedly connected to the outside of the screen box.

[0012] For vibrating the screen, preferably, a vibrating motor is fixedly installed at the bottom of the screen box, a base frame is provided below the screen box, and a second spring is installed between the screen box and the base frame.

[0013] For multi-stage screening, preferably, the sieve plate is provided with multiple sieves of different aperture sizes, with the aperture size gradually decreasing along the horizontal direction.

[0014] For material feeding, preferably, the bottom of the screen box has a feeding port with the same number of screens as the screen mesh, and an inclined guide plate is fixedly connected between the feeding port and the inner wall of the screen box.

[0015] To further separate mortars of different particle sizes, a baffle is fixedly connected between the bottom of the sieve plate and the discharge port, and the baffle is fixedly connected to the inner wall of the sieve box.

[0016] For ease of material feeding, preferably, the bottom of the screen box is fixedly connected with a number of conveying pipes equal to the number of feeding ports. The conveying pipes are connected to the feeding ports, and a discharge pipe is provided below the conveying pipes. An auger is rotatably installed inside the conveying pipes via a connecting shaft. Two adjacent connecting shafts are connected by a second belt drive. A third motor is fixedly connected to one of the conveying pipes, and one connecting shaft is fixedly connected to the output end of the third motor.

[0017] Compared with the prior art, the present invention provides a mortar screening device, which has the following beneficial effects:

[0018] 1. This building mortar screening device drives a slider to move laterally along a slide rail via a moving part. The slider drives the brush roller and brush to move synchronously via a mounting frame. At the same time, the drive part drives the brush roller and brush to rotate. The brush moves and cleans on the screen plate, preventing mortar particles from clogging the screen plate and improving the screening efficiency and effect.

[0019] 2. This building mortar screening device, by setting a cam, rotates the cam when moving and cleaning, and drives the mounting base to continuously vibrate laterally under the transmission of the guide rod and the first spring. This, in turn, causes the brush on the mounting frame to continuously vibrate laterally when moving and cleaning, resulting in better cleaning effect and further improving the anti-clogging ability. Attached Figure Description

[0020] Figure 1 This is an isometric structural diagram of a building mortar screening device proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the screen box of a building mortar screening device proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the brush structure of a building mortar screening device proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the slider cross-section structure of a building mortar screening device proposed in this utility model;

[0024] Figure 5 This is a schematic diagram of the conveying pipe structure of a building mortar screening device proposed in this utility model.

[0025] In the diagram: 1. Screen box; 201. Slide rail; 202. Slider; 203. First motor; 204. Rotating shaft; 205. First gear; 206. Tooth plate; 301. Mounting bracket; 302. Rotating shaft; 303. Brush roller; 304. Brush; 305. Second motor; 306. First belt drive; 4. Screen plate; 5. Guide rod; 6. Mounting seat; 7. First spring; 8. Cam; 9. Drive shaft; 10. Second gear; 11. Torsion spring; 12. Rack; 13. Vibration motor; 14. Base frame; 15. Second spring; 16. Discharge port; 17. Guide plate; 18. Baffle; 19. Conveying pipe; 20. Discharge pipe; 21. Connecting shaft; 22. Screwdriver; 23. Second belt drive; 24. Third motor. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Example:

[0029] Reference Figures 1-5 This utility model provides a mortar screening device, including a screen box 1 and a screen plate 4 installed inside the screen box 1. It also includes: two horizontally arranged slide rails 201 fixedly connected to the outside of the screen box 1, wherein a slider 202 is slidably mounted on the slide rails 201, and the screen box 1 is provided with a moving part for driving the slider 202 to slide along the slide rails 201; and a mounting frame 301 mounted on the slider 202, wherein a brush roller 303 is rotatably mounted on the mounting frame 301 via a rotating shaft 302, and a brush 304 with hard bristles is provided on the circumferential surface of the brush roller 303. The mounting frame 301 is provided with a driving part for driving the brush 304 to rotate. Two vibrating motors 13 are fixedly installed at the bottom of the screen box 1. An eccentric block is installed at the output end of the vibrating motor 13. The two vibrating motors 13 rotate synchronously in opposite directions to generate excitation force, which causes the mortar on the screen plate 4 to be thrown up and move forward in a straight line, thereby achieving the purpose of screening. A base frame 14 is set below the screen box 1. A second spring 15 is installed between the support rod at the bottom of the screen box 1 and the base frame 14. A support sleeve is fixedly connected to the base frame 14. The second spring 15 is located inside the support sleeve. The top of the second spring 15 is in contact with the bottom of the support rod at the bottom of the screen box 1. That is to say, the support rod at the bottom of the screen box 1 is inserted into the support sleeve to prevent the screen box 1 from tipping over.

[0030] During operation, the vibrating motor 13 is started to vibrate the screen. The moving part drives the slider 202 to move laterally along the slide rail 201. The slider 202 drives the brush roller 303 and the brush 304 to move synchronously through the mounting frame 301. At the same time, the driving part drives the brush roller 303 and the brush 304 to rotate. The brush 304 moves and cleans on the screen plate 4 to prevent mortar particles from clogging the screen plate 4, thereby improving the efficiency and effect of screening.

[0031] The moving part includes a first motor 203 fixedly connected to the bottom of one of the sliders 202. The output end of the first motor 203 is fixedly connected to a rotating shaft 204, which is rotatably connected to the slider 202. A first gear 205 is fixedly connected to the rotating shaft 204. A toothed plate 206 is fixedly connected to the inner wall of the slide rail 201. The first gear 205 meshes with the toothed plate 206. The driving part includes a second motor 305 fixedly connected to the mounting frame 301. The rotating shaft 302 is connected to the output shaft of the second motor 305 through a first belt drive 306. The first belt drive 306 is mainly composed of a mating belt and a pulley. A protective shell is provided on the mounting frame 301, and the first belt drive 306 is placed inside the protective shell to prevent mortar from jamming the first belt drive 306.

[0032] During operation, the first motor 203 is started, and its output end drives the rotating shaft 204 to rotate. The rotating shaft 204 drives the first gear 205 to rotate. Since the first gear 205 is meshed with the toothed plate 206, the slider 202 slides laterally along the slide rail 201, thereby driving the brush 304 to move laterally. At the same time, the second motor 305 is started, and its output end drives the rotating shaft 302 to rotate through the first belt drive 306. The rotating shaft 302 drives the brush roller 303 to rotate, and the brush roller 303 drives the brush 304 to rotate, so that the brush 304 moves and cleans.

[0033] A guide rod 5 is fixedly connected to the inner wall of the slider 202. The guide rod 5 is horizontally set and perpendicular to the slide rail 201. A mounting seat 6 is slidably mounted on the guide rod 5. The mounting bracket 301 is connected to the mounting seat 6. A first spring 7 is installed between the mounting seat 6 and the inner wall of the slider 202. A cam 8 is fixedly connected to the rotating shaft 204. The circumferential surface of the cam 8 is in contact with the mounting seat 6. A second gear 10 is rotatably mounted on the mounting seat 6 through the transmission shaft 9. The mounting bracket 301 is fixedly connected to the transmission shaft 9. A torsion spring 11 is installed between the transmission shaft 9 and the mounting seat 6. A rack 12 that matches the second gear 10 is fixedly connected to the outer side of the screen box 1.

[0034] During operation, as the brush 304 moves and cleans, i.e., when the first motor 203 drives the rotating shaft 204 to rotate, the rotating shaft 204 drives the cam 8 to rotate. The cam 8 presses against the mounting seat 6, and the mounting seat 6 slides along the guide rod 5 and compresses the first spring 7. Afterward, the first spring 7 returns to its original position, so the mounting seat 6 continuously vibrates laterally, which in turn drives the brush 304 on the mounting frame 301 to continuously vibrate laterally during the moving and cleaning process, resulting in better cleaning effect and further improving the anti-clogging ability. When not in use, the second gear 10 is moved towards the rack 12, which drives the second gear 10 to rotate. The second gear 10 drives the transmission shaft 9 to rotate, which drives the mounting frame 301 to rotate and tightens the torsion spring 11. The mounting frame 301 drives the brush 304 and brush roller 303 to rotate, rotating the brush 304 and brush roller 303 to one side of the screen box 1 to avoid interference during material feeding.

[0035] The sieve plate 4 is equipped with multiple screens of different apertures, which gradually decrease in size along the horizontal direction. The mortar is fed through the screen with the smallest aperture and screened step by step along the horizontal direction. The bottom of the sieve box 1 has a discharge port 16 with the same number of screens as the number of screens. An inclined guide plate 17 is fixedly connected between the discharge port 16 and the inner wall of the sieve box 1 to guide the screened mortar into the discharge port 16. A baffle 18 is fixedly connected between the bottom of the sieve plate 4 and the discharge port 16 to prevent the screened mortar from mixing again. The baffle 18 and the guide plate 17 are positioned opposite the discharge port 16. The baffle 18 is fixedly connected to the inner wall of the screen box 1. The bottom of the screen box 1 is fixedly connected to the same number of conveying pipes 19 as the discharge port 16. The conveying pipes 19 are connected to the discharge port 16. The discharge pipe 20 is provided below the conveying pipe 19. The auger 22 is rotatably installed in the conveying pipe 19 through the connecting shaft 21. The two adjacent connecting shafts 21 are connected by the second belt drive 23. The second belt drive 23 is mainly composed of mutually cooperating pulleys and belts. A third motor 24 is fixedly connected to one of the conveying pipes 19. One of the connecting shafts 21 is fixedly connected to the output end of the third motor 24.

[0036] During operation, mortar gradually falls from the screen plate 4, passes through the guide plate 17 and is discharged from the discharge port 16, falling into the conveying pipe 19. At the same time, the third motor 24 is started, and its output end drives the connecting shaft 21 connected to it to rotate. Under the transmission of the second belt drive 23, multiple connecting shafts 21 and auger 22 rotate simultaneously, discharging the mortar from the discharge pipe 20. A collection box can be placed below the discharge pipe 20.

[0037] In use, this mortar screening device pours mortar into the screen plate 4 through the smallest aperture screen. The vibration motor 13 is started to make the screen plate 4 vibrate, and the mortar gradually falls from the screen plate 4, passes through the guide plate 17 and is discharged from the discharge port 16 into the conveying pipe 19. At the same time, the third motor 24 is started, and its output end drives the connecting shaft 21 connected to it to rotate. Under the transmission of the second belt drive 23, multiple connecting shafts 21 and auger 22 rotate simultaneously, and the mortar is discharged from the discharge pipe 20, which can perform multi-stage screening.

[0038] After screening begins, the first motor 203 is started, and its output drives the rotating shaft 204 to rotate. The rotating shaft 204 drives the first gear 205 to rotate. Since the first gear 205 is meshed with the toothed plate 206, the slider 202 slides laterally along the slide rail 201, thereby driving the brush 304 to move laterally. At the same time, the second motor 305 is started, and its output drives the rotating shaft 302 to rotate through the first belt drive 306. The rotating shaft 302 drives the brush roller 303 to rotate, and the brush roller 303 drives the brush 304 to rotate, so that the brush 304 moves and cleans, preventing mortar particles from clogging the screen plate 4. At the same time, the rotating shaft 204 drives the cam 8 to rotate, and the cam 8 presses the mounting seat 6. The mounting seat 6 slides along the guide rod 5 and compresses the first spring 7. Then the first spring 7 returns to its original position, so the mounting seat 6 continuously shakes laterally, thereby driving the brush 304 on the mounting frame 301 to continuously shake laterally while moving and cleaning, resulting in a better cleaning effect and further improving the anti-clogging ability.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mortar screening device, comprising a screen box (1) and a screen plate (4) installed within the screen box (1), characterized in that, Also includes: The slide rail (201) is fixedly connected to the outside of the screen box (1). The slide rail (201) is slidably mounted with a slider (202), and the sieve box (1) is provided with a moving part that drives the slider (202) to slide along the slide rail (201); The mounting bracket (301) is mounted on the slider (202). The mounting frame (301) is rotatably mounted with a brush roller (303) via a rotating shaft (302). A brush (304) is provided on the circumferential surface of the brush roller (303). The mounting frame (301) is provided with a drive unit for driving the brush (304) to rotate.

2. The building mortar screening device according to claim 1, characterized in that, The moving part includes a first motor (203) fixedly connected to the bottom of the slider (202), a rotating shaft (204) fixedly connected to the output end of the first motor (203), a first gear (205) fixedly connected to the rotating shaft (204), and a toothed plate (206) fixedly connected to the inner wall of the slide rail (201). The first gear (205) meshes with the toothed plate (206).

3. The building mortar screening device according to claim 1, characterized in that, The drive unit includes a second motor (305) fixedly connected to the mounting bracket (301), and the rotating shaft (302) is connected to the output shaft of the second motor (305) via a first belt drive (306).

4. The building mortar screening device according to claim 2, characterized in that, A guide rod (5) is fixedly connected between the inner walls of the slider (202), and a mounting seat (6) is slidably mounted on the guide rod (5). The mounting bracket (301) is connected to the mounting seat (6). A first spring (7) is installed between the mounting seat (6) and the inner wall of the slider (202). A cam (8) is fixedly connected to the rotating shaft (204), and the circumferential surface of the cam (8) is in contact with the mounting seat (6).

5. A mortar screening device according to claim 4, characterized in that, The second gear (10) is rotatably mounted on the mounting base (6) via the transmission shaft (9). The mounting bracket (301) is fixedly connected to the transmission shaft (9). A torsion spring (11) is installed between the transmission shaft (9) and the mounting base (6). A rack (12) matching the second gear (10) is fixedly connected to the outside of the sieve box (1).

6. The building mortar screening device according to claim 1, characterized in that, A vibration motor (13) is fixedly installed at the bottom of the sieve box (1), and a base frame (14) is provided below the sieve box (1). A second spring (15) is installed between the sieve box (1) and the base frame (14).

7. The building mortar screening device according to claim 1, characterized in that, The sieve plate (4) is provided with multiple sieves of different aperture sizes, which gradually decrease along the horizontal direction.

8. A mortar screening device according to claim 1, characterized in that, The bottom of the sieve box (1) has a feeding port (16) with the same number of screens as the sieve mesh, and an inclined guide plate (17) is fixedly connected between the feeding port (16) and the inner wall of the sieve box (1).

9. A mortar screening device according to claim 8, characterized in that, A baffle (18) is fixedly connected between the bottom of the sieve plate (4) and the discharge port (16), and the baffle (18) is fixedly connected to the inner wall of the sieve box (1).

10. A mortar screening device according to claim 8, characterized in that, The bottom of the screen box (1) is fixedly connected with the same number of conveying pipes (19) as the discharge ports (16). The conveying pipes (19) are connected to the discharge ports (16), and a discharge pipe (20) is provided below the conveying pipes (19). The conveying pipe (19) is rotatably installed with an auger (22) via a connecting shaft (21). Two adjacent connecting shafts (21) are connected by a second belt drive (23). A third motor (24) is fixedly connected to one of the conveying pipes (19), and one of the connecting shafts (21) is fixedly connected to the output end of the third motor (24).

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