Adjustable multi-layer screen structure of particle material grading screening machine
By introducing an adjustable multi-layer screen structure and cleaning mechanism into the screening machine, the problem of debris adhering to the screen plate pores has been solved, achieving efficient cleaning and improved screening efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-24
AI Technical Summary
Existing screen plates are prone to trapping debris in their pores during use, which is difficult to clean when vibrating, thus affecting their performance.
An adjustable multi-layer screen structure was designed, equipped with a cleaning mechanism including a movable frame, a movable bracket, an air supply pipe, a nozzle, and a collection pipe. The mechanism cleans the debris on the screen plate and screen using high-pressure airflow, and uses a motor and an electric push rod to ensure the stability of the screen.
Effectively cleans debris from the screen plate and screen mesh, reduces pore blockage, improves screening efficiency, and ensures stable operation of the screen plate.
Smart Images
Figure CN224025688U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of screening machines, especially to adjustable multilayer screen structure of granular material grading screening machine. BACKGROUND
[0002] The screening machine is a kind of equipment for material particle screening and separation, wherein the screen plate can be used for vibrating screening, and material jumps on the screen surface by vibration, small particle material falls through the screen hole, and large particle material remains on the screen surface. In use, debris can be adhered in the aperture of the screen plate, and it is difficult to shake off the debris during vibration, which is inconvenient to clean and affects the use of the screen plate. SUMMARY
[0003] The utility model provides a kind of adjustable multilayer screen structure of granular material grading screening machine to overcome the deficiencies of prior art, to solve the problem that the aperture of the screen plate in use can adhere debris, it is difficult to shake off the debris during vibration, which is inconvenient to clean and affects the use of the screen plate.
[0004] Therefore, the utility model provides a kind of adjustable multilayer screen structure of granular material grading screening machine, including several installation frames, the cleaning mechanism is arranged on the installation frame;
[0005] The cleaning mechanism includes a moving frame, a moving frame, a first mounting frame, an air supply pipe, a plurality of nozzles, a second mounting frame and a collection pipeline, the moving frame is fixedly installed on one side of the installation frame, the moving frame is slidably installed on the moving frame, the first mounting frame is fixedly installed on one side of the top end of the moving frame, the air supply pipe is fixedly installed on one side of the inner wall of the first mounting frame, a plurality of nozzles are fixedly installed on the outer wall of the air supply pipe, the second mounting frame is fixedly installed on one side of the bottom end of the moving frame, and the collection pipeline is fixedly installed on one side of the inner wall of the second mounting frame.
[0006] Optionally, a second motor is fixedly installed on one side of the moving frame, the output end of the second motor extends into the moving frame, a lead screw is fixedly installed on the output end of the second motor, and the moving frame is threadedly connected to the outer wall of the lead screw through the threaded hole thereon.
[0007] Optionally, supports are fixedly installed on both sides of the plurality of installation frames.
[0008] Optionally, mounting barrels are fixedly installed at both ends of the installation frame, a first motor is fixedly installed at one end of the mounting barrel, the output end of the first motor extends into the mounting barrel, and a mounting shaft is fixedly installed on the output end of the first motor.
[0009] Optionally, a sleeve is fixedly installed on the outer wall of the mounting shaft, and a screen is fixedly installed on the outer wall of the sleeve.
[0010] Optionally, the screen mesh is wound on the outer wall of the sleeve at both ends, a sieve plate is fixedly installed at the bottom of the inner ring of the mounting frame, the holes on the sieve plate correspond to the holes on the screen mesh, and the screen mesh is located at the bottom of the sieve plate.
[0011] Optionally, mounting grooves are formed at the bottom of the mounting frame on both sides, an electric push rod output end is fixedly installed on the groove wall of the mounting groove, and a pressing plate is fixedly installed on the electric push rod output end, and the pressing plate is located at the bottom of the screen mesh on both sides.
[0012] From the above technical solutions, it can be seen that the embodiments of the utility model have the following advantages:
[0013] 1. The adjustable multi-layer screen mesh structure of the granular material grading and screening machine, by setting the cleaning mechanism, the moving frame can move on the moving frame, the moving frame moves to drive the first mounting frame and the second mounting frame to move at the top end of the sieve plate and the bottom end of the screen mesh respectively, the nozzle sprays high-pressure airflow to clean the slag in the pores on the sieve plate and the screen mesh, and the collecting pipeline in the second mounting frame sucks the cleaned slag, thereby reducing the influence of the slag blocking the pores on the screening.
[0014] 2. The adjustable multi-layer screen mesh structure of the granular material grading and screening machine, the electric push rod controls the pressing plate to move up and down, and the pressing plate can press the edges on both sides of the screen mesh, so that the screen mesh is fixed more stably.
[0015] These features and advantages of the utility model will be disclosed in detail in the following specific embodiments and drawings. DRAWINGS
[0016] The utility model will be further described below in combination with the drawings:
[0017] Figure 1 It is a structural schematic view of the utility model;
[0018] Figure 2 It is a sectional view of the installation cylinder of the utility model;
[0019] Figure 3 It is a sectional view of the first mounting frame and the second mounting frame of the utility model;
[0020] Figure 4 It is a structural schematic view of the utility model Figure 1 It is an enlarged view of A in the utility model.
[0021] Explanation of reference signs: 1, mounting frame; 2, sieve plate; 3, mounting cylinder; 4, first motor; 5, mounting shaft; 6, sleeve; 7, sieve; 8, electric push rod; 9, pressing plate; 10, support; 11, moving frame; 12, second motor; 13, screw rod; 14, moving frame; 15, first mounting frame; 16, air supply pipe; 17, spray head; 18, second mounting frame; 19, collection pipeline. DETAILED DESCRIPTION
[0022] The technical solutions of the embodiments of the utility model will be explained and described below in combination with the drawings of the embodiments of the utility model. However, the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0023] The adjustable multi-layer sieve structure of the granular material grading and screening machine according to the embodiments of the utility model will be specifically described below in combination with the drawings.
[0024] Embodiment 1
[0025] For the convenience of understanding, please refer to Figures 1 to 4 An embodiment of the adjustable multi-layer sieve structure of the granular material grading and screening machine provided by the utility model comprises a plurality of mounting frames 1, and a cleaning mechanism is arranged on the mounting frame 1; the cleaning mechanism comprises a moving frame 11, a moving frame 14, a first mounting frame 15, an air supply pipe 16, a plurality of spray heads 17, a second mounting frame 18 and a collection pipeline 19, the moving frame 11 is fixedly installed on one side of the mounting frame 1, the moving frame 14 is slidingly installed on the moving frame 11, the first mounting frame 15 is fixedly installed on one side of the top end of the moving frame 14, the air supply pipe 16 is fixedly installed on one side of the inner wall of the first mounting frame 15, the plurality of spray heads 17 are fixedly installed on the outer wall of the air supply pipe 16, the second mounting frame 18 is fixedly installed on one side of the bottom end of the moving frame 14, and the collection pipeline 19 is fixedly installed on one side of the inner wall of the second mounting frame 18.
[0026] It should be noted that by arranging the cleaning mechanism, the moving frame 14 can move on the moving frame 11, and when the moving frame 14 moves, the first mounting frame 15 and the second mounting frame 18 are driven to move at the top end of the sieve plate 2 and the bottom end of the sieve 7 respectively, the spray heads 17 spray high-pressure airflow to clean the slag in the pores on the sieve plate 2 and the sieve 7, the collection pipeline 19 in the second mounting frame 18 sucks the cleaned slag, and the influence of the slag blocking the pores on the screening is reduced. In this example, one end of the air supply pipe 16 extends to the outside of the first mounting frame 15, and the air supply pipe 16 is connected with an external high-pressure air pump through a hose; one end of the collection pipeline 19 extends to the outside of the second mounting frame 18, and one end of the collection pipeline 19 is connected with an external dust collector through a pipeline.
[0027] In some embodiments, asFigure 3 , Figure 4 As shown, a second motor 12 is fixedly installed on one side of the moving frame 11. The output end of the second motor 12 extends into the interior of the moving frame 11. A lead screw 13 is fixedly installed on the output end of the second motor 12. The moving frame 14 is threadedly connected to the outer wall of the lead screw 13 through the threaded hole on it.
[0028] It should be noted that when the second motor 12 starts, it drives the lead screw 13 to rotate. The lead screw 13 drives the moving frame 14 to move on the moving frame 11 through the threaded connection between the lead screw 13 and the moving frame 14. The moving frame 11 limits the movement of the moving frame 14 when the moving frame 14 moves.
[0029] In some embodiments, such as Figure 2 As shown, brackets 10 are fixedly installed on both sides of several mounting frames 1, mounting cylinders 3 are fixedly installed at both ends of the mounting frame 1, a first motor 4 is fixedly installed at one end of the mounting cylinder 3, the output end of the first motor 4 extends into the interior of the mounting cylinder 3, a mounting shaft 5 is fixedly installed at the output end of the first motor 4, a sleeve 6 is fixedly installed on the outer wall of the mounting shaft 5, a screen 7 is fixedly installed on the outer wall of the sleeve 6, and the two ends of the screen 7 are respectively wrapped around the outer wall of the corresponding sleeve 6. A screen plate 2 is fixedly installed at the bottom of the inner ring of the mounting frame 1, the holes on the screen plate 2 correspond to the holes on the screen 7, and the screen 7 is located at the bottom of the screen plate 2.
[0030] It should be noted that when the second motor 12 starts, it drives the sleeve 6 to rotate. By rotating the sleeve 6 on both sides of the mounting bracket 1 in the forward or reverse direction, the screen 7 can be moved. By moving the screen 7 at the bottom of the screen plate 2, the size of the screening holes can be adjusted.
[0031] In this example, the first motor 4 and the second motor 12 can be servo motors.
[0032] In this example, multiple mounting brackets 1 and sieve plates 2 are connected by bracket 10 to achieve multi-layer screening.
[0033] Example 2
[0034] In some embodiments, such as Figure 2 As shown, mounting slots are provided on both sides of the bottom of the mounting frame 1. An electric push rod 8 is fixedly installed on the wall of the mounting slot, and a pressure plate 9 is fixedly installed at the output end. The pressure plates 9 are located at the bottom of both sides of the screen 7.
[0035] It should be noted that the electric push rod 8 controls the up and down movement of the pressure plate 9. The pressure plate 9 can press the edges of both sides of the screen 7, making the screen 7 more stable.
[0036] The first motor 4, the second motor 12, and the electric push rod 8 in this utility model are known components and will not be described in detail here.
[0037] Working principle: when adjusting the size of the screening aperture, the second motor 12 starts to drive the sleeve 6 to rotate, and through the forward rotation or reverse rotation of the sleeve 6 on both sides of the mounting frame 1, the screen 7 can be moved to a position, and through the movement of the screen 7 at the bottom of the screen plate 2, the size of the screening aperture can be adjusted. When the screen 7 moves, the electric push rod 8 controls the pressing plate 9 to descend, thereby canceling the pressing of the screen 7. After the screen 7 moves, the electric push rod 8 controls the pressing plate 9 to descend and ascend, thereby pressing the edges of the screen 7.
[0038] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. An adjustable multi-layer screen structure for a granular material grading and screening machine, characterized in that: It includes several mounting brackets (1), and each mounting bracket (1) is equipped with a cleaning mechanism; The cleaning mechanism includes a movable frame (11), a movable frame (14), a first mounting frame (15), an air supply pipe (16), several nozzles (17), a second mounting frame (18), and a collection pipe (19). The movable frame (11) is fixedly installed on one side of the mounting frame (1), and the movable frame (14) is slidably installed on the movable frame (11). The first mounting frame (15) is fixedly installed on the top of one side of the movable frame (14), the air supply pipe (16) is fixedly installed on one side of the inner wall of the first mounting frame (15), several nozzles (17) are fixedly installed on the outer wall of the air supply pipe (16), the second mounting frame (18) is fixedly installed on the bottom of one side of the movable frame (14), and the collection pipe (19) is fixedly installed on one side of the inner wall of the second mounting frame (18).
2. The adjustable multi-layer screen structure of a granular material grading and screening machine according to claim 1, characterized in that: A second motor (12) is fixedly installed on one side of the movable frame (11). The output end of the second motor (12) extends into the interior of the movable frame (11). A lead screw (13) is fixedly installed on the output end of the second motor (12). The movable frame (14) is threadedly connected to the outer wall of the lead screw (13) through a threaded hole on it.
3. The adjustable multi-layer screen structure of a granular material grading and screening machine according to claim 1, characterized in that: Several of the mounting brackets (1) are fixedly mounted on both sides with brackets (10).
4. The adjustable multi-layer screen structure of a granular material grading and screening machine according to claim 1, characterized in that: The mounting bracket (1) has mounting cylinders (3) fixedly installed at both ends. A first motor (4) is fixedly installed at one end of the mounting cylinder (3). The output end of the first motor (4) extends into the interior of the mounting cylinder (3). A mounting shaft (5) is fixedly installed at the output end of the first motor (4).
5. The adjustable multi-layer screen structure of a granular material grading and screening machine according to claim 4, characterized in that: A sleeve (6) is fixedly installed on the outer wall of the mounting shaft (5), and a screen (7) is fixedly installed on the outer wall of the sleeve (6).
6. The adjustable multi-layer screen structure of a granular material grading and screening machine according to claim 5, characterized in that: The two ends of the screen (7) are respectively wrapped around the outer wall of the corresponding sleeve (6). The bottom of the inner ring of the mounting frame (1) is fixedly installed with a screen plate (2). The holes on the screen plate (2) correspond to the holes on the screen (7). The screen (7) is located at the bottom of the screen plate (2).
7. The adjustable multi-layer screen structure of a granular material grading and screening machine according to claim 5, characterized in that: The mounting bracket (1) has mounting grooves on both sides of its bottom end. An electric push rod (8) is fixedly installed on the wall of the mounting groove, and a pressure plate (9) is fixedly installed at the output end. The pressure plates (9) are located at the bottom of both sides of the screen (7).