Gravel classification screening device for dry-mixed mortar production

Abstract

The utility model discloses a gravel grading screening device for dry-mixed mortar production, which relates to the technical field of gravel screening for dry-mixed mortar production and comprises a screening shell, a fixing plate, a sealing plate and screening plates longitudinally arranged in the screening shell. One side of the sealing plate is arranged on the fixing plate, a through groove is formed in one side of the screening shell, the sealing plate is located in the through groove, the fixing plate is arranged on the screening shell through bolts, clamping grooves are formed in the two sides of the through groove and the two sides of the inner wall of the screening shell correspondingly, and clamping strips matched with the clamping grooves are arranged on the front side and the rear side of the screening plate correspondingly. The clamping strips are located in the clamping grooves, a rod body is longitudinally arranged at the bottom of the side, facing the sealing plate, of the screening plate, and the sealing plate is attached to the screening plate. The screening shell is obliquely arranged, and a feeding opening is formed in the side, facing the through groove, of the top of the screening shell. And the screening plate can be replaced conveniently, and the screening effect of the screening device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of sand and gravel screening for dry-mix mortar production, in particular to a sand and gravel grading and screening device for dry-mix mortar production. Background Art

[0002] Dry-mix mortar refers to a granular or powdered building material made by physically mixing dried and sieved aggregates, inorganic cementitious materials and additives in a certain proportion. It can play a role in bonding, lining, protection and decoration in construction, and is therefore widely used in construction and decoration projects.

[0003] The main raw materials of dry-mix mortar are sand and gravel. Before use, sand and gravel need to be graded and screened according to particle size to make the particle size of sand and gravel more uniform and consistent, thus ensuring the dry-mix mortar produced has good quality.

[0004] The authorization announcement number is CN214555234U, which is a sand and gravel grading and screening device for dry-mix mortar production. The material is poured into the feed hopper and transported to the first layer of screen plate by the conveying auger. The vibration motor vibrates and the spring is used for buffering and shock absorption. The screened material falls into the next layer of screen plate, and the unscreened material slides onto the conveyor belt through the inclined trough and is then transported to the collection box. Different screening purposes are achieved through multiple screen plates.

[0005] However, the above device is not convenient for replacing the screening plate. When the screening plate is blocked or damaged, it will not only affect the screening efficiency and reduce the screening effect, but also shorten the service life of the screening device. Utility Model Content

[0006] The purpose of the utility model is to provide a sand and gravel grading screening device for dry-mix mortar production, which is convenient for replacing the screening plate, ensures the screening effect of the screening device, and prolongs the service life of the screening device.

[0007] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a sand and gravel grading and screening device for dry-mixed mortar production, comprising a screening shell, the screening shell being provided with a feeding port and a discharging port; comprising a screening shell, a fixing plate, a sealing plate, and screening plates arranged longitudinally in the screening shell; one side of the sealing plate is provided on the fixing plate, a through groove is provided on one side of the screening shell, the sealing plate is located in the through groove, the fixing plate is provided on the screening shell by bolts, and both sides of the through groove and the inner wall of the screening shell are provided with card slots, and the front and rear sides of the screening plate are provided with card strips adapted to the card slots, the card strips are located in the card slots, a rod is longitudinally provided on the bottom of the screening plate facing the sealing plate, and the sealing plate is attached to the screening plate.

[0008] In order to facilitate the classification and collection of the screened dry-mixed mortar, a sand and gravel grading and screening device for dry-mixed mortar production is preferably provided in the utility model. A gap is provided on the side of the screen plate facing the discharge port, and a guide plate is obliquely provided below the gap. The higher end of the guide plate is in contact with the bottom of the screen plate, and the lower end of the guide plate is provided in the discharge port.

[0009] In order to reduce the impact of dry-mixed mortar on the screening plate, as a preferred sand and gravel grading screening device for dry-mixed mortar production of the present invention, a buffer plate is hinged below the feeding port, and a first spring is obliquely arranged between the buffer plate and the inner wall of the screening shell.

[0010] In order to facilitate the movable installation of the screening shell on the base, as a preferred sand and gravel grading screening device for dry-mixed mortar production of the present invention, a vibration motor is provided on the top of the screening shell; a base is provided at the bottom of the screening shell, and a support frame is provided on the base that is slidably connected to the outer wall of the screening shell.

[0011] In order to increase the vibration amplitude of the screening shell, as a preferred sand and gravel grading screening device for dry-mixed mortar production of the present invention, the support frame is provided with a slide groove on the side facing the screening shell, and a group of second springs, sliders, and limit rods are arranged in the slide groove. The sliders are arranged between a group of second springs, and the other ends of a group of second springs are respectively arranged on the inner walls of the slide groove. One end of the limit rod passes through the second spring and the slider and is vertically arranged in the slide groove, and the slider is slidably connected to the outer wall of the limit rod, and one side of the slider is arranged on the screening shell.

[0012] In order to facilitate intuitive observation of the internal conditions of the screening shell, as a preferred sand and gravel grading and screening device for dry-mixed mortar production of the present invention, an observation window is provided on the side of the screening shell facing the support frame.

[0013] In order to facilitate loading, as a preferred sand and gravel grading and screening device for dry-mixed mortar production of the present invention, a loading mechanism is provided on one side of the screening shell.

[0014] In order to improve the efficiency of feeding, as a preferred sand and gravel grading and screening device for dry-mixed mortar production of the utility model, the feeding mechanism includes a feeding barrel, an auger, and a driving motor. The feeding barrel is vertically arranged on the base, the auger is located in the feeding barrel, the driving motor is arranged at the top of the feeding barrel, and the output of the driving motor is fixedly connected to one end of the auger. A feeding port and a discharging port are provided on the feeding barrel, and the discharging port is located above the feeding port.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The utility model opens the fixing plate and takes out the sealing plate from the through slot. The screening plate in the screening housing can be easily pulled out through the rod body, and the screening plate can be easily replaced. The sealing plate is in contact with the screening plate, which increases the tightness between the sealing plate and the screening plate, and restricts the screening plate to avoid shaking of the screening plate, thereby improving the installation stability of the screening plate. The fixing plate is fixed to the screening housing by bolts, which increases the sealing effect of the screening housing and prevents dust from floating out of the through slot.

[0017] The utility model starts the vibration motor to vibrate the screening shell, which makes it easy for the dry-mixed mortar to roll and vibrate on the screening plate for screening. The discharge port makes it easy to discharge the dry-mixed mortar of corresponding specifications on the screening plate, and to classify and collect the screened dry-mixed mortar, thereby realizing multiple graded screening functions and improving the screening effect of the screening device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the screening housing of the present invention;

[0020] Figure 3 It is a schematic cross-sectional view of the screening shell and the feeding mechanism of the utility model.

[0021] In the figure: 1. Screening shell; 2. Fixed plate; 3. Sealing plate; 4. Screening plate; 5. Through slot; 6. Card slot; 7. Card strip; 8. Rod body; 9. Feed port; 10. Discharge port; 11. Gap; 12. Guide plate; 13. Buffer plate; 14. First spring; 15. Vibration motor; 16. Base; 17. Support frame; 18. Slide; 19. Second spring; 20. Slider; 21. Limit rod; 22. Observation window; 23. Loading barrel; 24. Auger; 25. Drive motor; 26. Feed port; 27. Discharge port. DETAILED DESCRIPTION

[0022] See also Figures 1 to 3 A sand and gravel grading and screening device for dry-mix mortar production includes a screening shell 1, which is provided with a feeding port 9 and a discharging port 10; it includes a screening shell 1, a fixing plate 2, a sealing plate 3, and screening plates 4 arranged longitudinally in the screening shell 1; one side of the sealing plate 3 is arranged on the fixing plate 2, a through groove 5 is opened on one side of the screening shell 1, the sealing plate 3 is located in the through groove 5, and the fixing plate 2 is set on the screening shell 1 by bolts, and both sides of the through groove 5 and the inner wall of the screening shell 1 are provided with card slots 6, and the front and rear sides of the screening plate 4 are provided with card strips 7 adapted to the card slot 6, and the card strips 7 are located in the card slot 6. A rod body 8 is longitudinally provided on the bottom of the screening plate 4 facing the sealing plate 3, and the sealing plate 3 is attached to the screening plate 4.

[0023] In this embodiment: the card strips 7 on both sides of the screening plate 4 are stuck in the card slots 6, so that the screening plate 4 is easy to install in the screening shell 1, and the screening plate 4 in the screening shell 1 can be easily pulled out and replaced through the rod body 8; the sealing plate 3 is attached to the screening plate 4, which increases the tightness of the sealing plate 3 and the screening plate 4, and the sealing plate 3 restricts the screening plate 4 to avoid shaking of the screening plate 4 and improves the installation stability of the screening plate 4; the fixing plate 2 is fixed to the screening shell 1 by bolts, which increases the sealing effect of the screening shell 1 and avoids Dust floats out from the through groove 5, and the dry-mixed mortar enters the screening shell 1 through the feeding port 9. The screening shell 1 is tilted, which makes it easy for the dry-mixed mortar to roll and screen on the screening plate 4. The discharge port 10 makes it easy to discharge the dry-mixed mortar of corresponding specifications on the screening plate 4, and it is easy to classify and collect the screened dry-mixed mortar; the aperture on the upper screening plate 4 in the screening shell 1 is larger than the aperture on the lower screening plate 4, which makes it easy to perform multiple graded screening on the dry-mixed mortar, realize multiple graded screening functions, and improve the screening effect of the screening device.

[0024] As a technical optimization solution of the present invention, a gap 11 is provided on the side of the screening plate 4 facing the discharge port 10, and a guide plate 12 is obliquely provided below the gap 11, and the higher end of the guide plate 12 is attached to the bottom of the screening plate 4, and the lower end of the guide plate 12 is provided in the discharge port 10.

[0025] In this embodiment: the gap 11 makes it easy for the dry-mixed mortar on the screening plate 4 to flow back into the corresponding discharge port 10 through the guide plate 12; it should be noted that the discharge port of the upper discharge port 10 faces backward, the discharge port of the middle discharge port 10 faces left, and the discharge port of the lower discharge port 10 faces in front, which makes it easy to classify and collect the screened dry-mixed mortar.

[0026] As a technical optimization solution of the present invention, a buffer plate 13 is hinged below the feeding port 9 , and a first spring 14 is obliquely provided between the buffer plate 13 and the inner wall of the screening shell 1 .

[0027] In this embodiment, the first spring 14 enables the buffer plate 13 to buffer the impact force of the dry-mixed mortar entering the screening housing 1 , thereby reducing the impact of the dry-mixed mortar on the screening plate 4 .

[0028] As a technical optimization solution of the present invention, a vibration motor 15 is provided on the top of the screening shell 1; a base 16 is provided at the bottom of the screening shell 1, and a support frame 17 is provided on the base 16 and is slidably connected to the outer wall of the screening shell 1.

[0029] In this embodiment, the screening housing 1 can be movably arranged on the base 16 by the support frame 17 , and the vibration motor 15 can be started to vibrate the screening housing 1 , so that the screening housing 1 can vibrate and screen the dry-mixed mortar.

[0030] As a technical optimization solution of the present invention, a slide groove 18 is opened on the side of the support frame 17 facing the screening shell 1, and a group of second springs 19, a slider 20, and a limit rod 21 are arranged in the slide groove 18. The slider 20 is arranged between the group of second springs 19, and the other ends of the group of second springs 19 are respectively arranged on the inner walls of the slide groove 18. One end of the limit rod 21 passes through the second spring 19 and the slider 20 and is vertically arranged in the slide groove 18, and the slider 20 is slidably connected to the outer wall of the limit rod 21, and one side of the slider 20 is arranged on the screening shell 1.

[0031] In this embodiment, the slider 20 is slidably arranged on the limit rod 21, and second springs 19 are arranged on both sides of the slider 20. When the vibration motor 15 is started, the vibration amplitude of the screening shell 1 can be increased, making it easier for the screening plate 4 to vibrate and screen the dry-mixed mortar.

[0032] As a technical optimization solution of the present invention, an observation window 22 is provided on the side of the screening housing 1 facing the support frame 17 .

[0033] In this embodiment, the condition of the screening plate 4 can be visually detected through the observation window 22, and the screening plate 4 can be easily replaced in time to ensure the quality of screening.

[0034] As a technical optimization solution of the present invention, a feeding mechanism is provided on one side of the screening shell 1 .

[0035] In this embodiment, the material can be easily fed into the screening housing 1 through the feeding mechanism.

[0036] As a technical optimization solution of the present invention, the feeding mechanism includes a feeding barrel 23, an auger 24, and a drive motor 25. The feeding barrel 23 is vertically arranged on the base 16, the auger 24 is located in the feeding barrel 23, and the drive motor 25 is arranged at the top of the feeding barrel 23. The output of the drive motor 25 is fixedly connected to one end of the auger 24. The feeding barrel 23 is provided with a feed port 26 and a discharge port 27, and the discharge port 27 is located above the feeding port 9.

[0037] In this embodiment: the screening shell 1 has a certain height, and the screening material is fed into the feed port 26 through the feed port 26, the drive motor 25 is started, and the auger 24 rotates, which makes it easy to push the material in the feeding barrel 23 directly into the feed port 9, thereby improving the feeding efficiency.

[0038] Working principle: by opening the fixing plate 2, the sealing plate 3 is taken out from the through slot 5, and the screening plate 4 in the screening housing 1 is easily pulled out through the rod 8, and the screening plate 4 is easy to be replaced (or cleaned). After replacement, the sealing plate 3 is sleeved in the through slot 5, so that the sealing plate 3 and the screening plate 4 are in contact with each other, thereby increasing the tightness between the sealing plate 3 and the screening plate 4, and the sealing plate 3 restricts the screening plate 4 to avoid shaking of the screening plate 4 and improve the installation stability of the screening plate 4; the fixing plate 2 is fixed to the screening housing 1 by bolts, increasing the screening housing 1 has a sealing effect to prevent dust from floating out of the through slot 5; the vibration motor 15 is started, the screening shell vibrates, and the dry-mixed mortar enters the screening shell 1 through the feeding port 9. The screening shell 1 is tilted, which makes it easy for the dry-mixed mortar to roll and vibrate on the screening plate 4 for screening. The discharge port 10 is easy to discharge the dry-mixed mortar of corresponding specifications on the screening plate 4, and is easy to classify and collect the screened dry-mixed mortar, realizing multiple graded screening functions, improving the screening effect of the screening device, and through the feeding mechanism, it is easy to feed the material into the screening shell 1.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sand and gravel grading and screening device for dry-mix mortar production, comprising a screening housing (1), wherein the screening housing (1) is provided with a feeding port (9) and a discharging port (10); characterized in that: The invention comprises a screening shell (1), a fixing plate (2), a sealing plate (3), and a screening plate (4) arranged longitudinally in the screening shell (1); one side of the sealing plate (3) is arranged on the fixing plate (2); a through groove (5) is provided on one side of the screening shell (1); the sealing plate (3) is located in the through groove (5); the fixing plate (2) is arranged on the screening shell (1) by bolts; both sides of the through groove (5) and the inner wall of the screening shell (1) are provided with a card slot (6); the front and rear sides of the screening plate (4) are provided with a card strip (7) adapted to the card slot (6); the card strip (7) is located in the card slot (6); a rod (8) is longitudinally provided on the bottom of the screening plate (4) facing the sealing plate (3); the sealing plate (3) is attached to the screening plate (4).

2. The sand and gravel grading and screening device for dry-mix mortar production according to claim 1, characterized in that: A gap (11) is provided on one side of the screening plate (4) facing the discharge port (10), and a guide plate (12) is provided obliquely below the gap (11), with the higher end of the guide plate (12) abutting against the bottom of the screening plate (4), and the lower end of the guide plate (12) being provided in the discharge port (10).

3. The sand and gravel grading and screening device for dry-mix mortar production according to claim 1, characterized in that: A buffer plate (13) is hinged below the feeding port (9), and a first spring (14) is obliquely arranged between the buffer plate (13) and the inner wall of the screening shell (1).

4. The sand and gravel grading and screening device for dry-mix mortar production according to claim 1, characterized in that: A vibration motor (15) is provided on the top of the screening housing (1); A base (16) is provided at the bottom of the screening housing (1), and a support frame (17) is provided on the base (16) and is slidably connected to the outer wall of the screening housing (1).

5. The sand and gravel grading and screening device for dry-mix mortar production according to claim 4, characterized in that: The support frame (17) is provided with a chute (18) on one side facing the screening housing (1), and a group of second springs (19), a slider (20), and a limiting rod (21) are arranged in the chute (18). The slider (20) is arranged between the group of second springs (19), and the other ends of the group of second springs (19) are respectively arranged on the inner wall of the chute (18). One end of the limiting rod (21) passes through the second spring (19) and the slider (20) and is vertically arranged in the chute (18), and the slider (20) is slidably connected to the outer wall of the limiting rod (21). One side of the slider (20) is arranged on the screening housing (1).

6. The sand and gravel grading and screening device for dry-mix mortar production according to claim 5, characterized in that: An observation window (22) is provided on the side of the screening housing (1) facing the support frame (17).

7. The sand and gravel grading and screening device for dry-mix mortar production according to claim 1, characterized in that: A loading mechanism is provided on one side of the screening housing (1).

8. The sand and gravel grading and screening device for dry-mix mortar production according to claim 7, characterized in that: The feeding mechanism includes a feeding barrel (23), an auger (24), and a driving motor (25); the feeding barrel (23) is vertically arranged on the base (16); the auger (24) is located in the feeding barrel (23); the driving motor (25) is arranged on the top of the feeding barrel (23); the output of the driving motor (25) is fixedly connected to one end of the auger (24); the feeding barrel (23) is provided with a feeding port (26) and a discharging port (27); the discharging port (27) is located above the feeding port (9).

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