Multi-stage vibrating screening machine

Abstract

The utility model belongs to the technical field of screening machines, and particularly relates to a multi-stage vibrating screening machine which comprises a support, a box body, a feeding hopper, a discharging opening and a vibrating motor, and a screening plate is connected in the box body in a sliding mode. By arranging the support, the box body, the feeding hopper, the discharging opening, the vibration motor, the screening plate, a first threaded rod, a second threaded rod, a first sliding rod, a motor, a first belt wheel, a second belt wheel, a belt, a brush plate, a connecting block, a mounting frame, a material blocking plate, a sliding block A, a fixing plate, a bidirectional lead screw, a second sliding rod and a rotating head, the feeding speed of the screening machine can be adjusted; according to the screening machine, it can be guaranteed that materials are evenly distributed on the surface of the screening plate, overloading of the screening plate caused by overloading or too fast feeding is avoided, residual materials inlaid in meshes of the screening plate can be removed, the screening effect of the screening machine is prevented from being affected by inlaid objects, and therefore the service life of the screening machine is prolonged, and production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of screening machines, and particularly relates to a multi-stage vibration screening machine. Background Art

[0002] A screening machine is a device used for separating or screening solid materials and is widely applied in industries such as mining, construction, chemical industry, food processing, etc. The basic working principle of a screening machine is to use a sieve mesh or a sieve mesh system, through vibration, rotation or other mechanical actions, to classify materials into different grades or categories according to characteristics such as particle size and shape. Publication No. CN220371543U discloses a screening machine, which includes a load-bearing bottom plate, a screening machine chassis and a screening filter mesh. Spring bases are uniformly and fixedly installed at the top of the load-bearing bottom plate. In the utility model, the gaps of multiple groups of screening filter meshes gradually decrease from top to bottom. The chassis base is installed at the spring bases at the top of the load-bearing bottom plate. Starting the vibration motor on the outer wall of the chassis base can drive the screening machine chassis to vibrate. Flour raw materials pass through the guide hopper and the guide pipe and are transmitted to the inner wall of the load-bearing bottom plate. The screening filter mesh installed at the top of the load-bearing frame can screen the incoming flour. The gaps of multiple groups of screening filter meshes gradually decrease from top to bottom, so that the flour raw materials can be classified and screened. The large-particle raw materials screened out can be discharged and collected through the staggered discharge pipes. The bottom discharge plate can discharge the finally screened flour raw materials from the discharge pipes for collection, and the practicability is poor. Although this product can perform multi-stage screening on materials and has a high screening efficiency, the size of the feed inlet of this product is fixed. The screening machine cannot appropriately adjust the feeding speed according to actual needs. Moreover, after the screening machine is used for a long time, materials are easily embedded in the mesh holes of the sieve plate. If it is not processed in time, it will directly affect the screening effect of the screening machine, resulting in the screening machine not having an efficient vibration screening effect and needing to be improved. Content of the Utility Model

[0003] The purpose of the utility model is to provide a multi-stage vibration screening machine to at least solve the problems existing in the above-mentioned prior art.

[0004] To achieve the above object, the multi-stage vibrating screening machine provided by the embodiments of the present utility model includes a bracket, a box body, a feed hopper, a discharge port and a vibrating motor. A sieve plate is slidably connected inside the box body. A first threaded rod and a second threaded rod are rotatably connected inside the box body. A first sliding rod is fixedly installed inside the box body. A motor is fixedly installed on the side of the box body. A first belt pulley is fixedly installed at one end of the first threaded rod. A second belt pulley is fixedly installed at one end of the second threaded rod. A belt is drivingly connected to the surfaces of the first belt pulley and the second belt pulley. A brush plate is slidably connected inside the box body. A connecting block is fixedly installed on the side of the brush plate. An installation frame is fixedly installed on the surface of the feed hopper. A baffle plate is slidably connected inside the installation frame. A sliding block A is rotatably connected inside the installation frame. A fixing plate is fixedly installed on the side of the installation frame. A bidirectional lead screw is rotatably connected inside the installation frame. A second sliding rod is fixedly installed inside the installation frame.

[0005] Optionally, the output end of the motor is fixedly connected to one end of the first threaded rod. The first threaded rod and the second threaded rod are threadedly connected to the connecting block. The connecting block is slidably connected to the first sliding rod.

[0006] Optionally, the lower surface of the brush plate is in contact with the surface of the sieve plate. The number of the brush plates and the sieve plates is two groups.

[0007] Optionally, the sliding block A is slidably connected to the installation frame. The bidirectional lead screw is threadedly connected to the sliding block A. The sliding block A is slidably connected to the second sliding rod.

[0008] Optionally, a rotating head is fixedly installed at one end of the bidirectional lead screw. The bidirectional lead screw is rotatably connected to the fixing plate.

[0009] Optionally, a limiting sleeve is fixedly installed on the side of the box body. A limiting block is slidably connected inside the limiting sleeve. A spring is fixedly installed inside the limiting sleeve. A sliding block B is fixedly installed on the side of the sieve plate.

[0010] Optionally, one end of the spring is fixedly connected to the side of the limiting block. The limiting block is slidably connected to the sliding block B.

[0011] One or more of the above technical solutions in the multi-stage vibrating screening machine provided by the embodiments of the present utility model have at least one of the following technical effects:

[0012] 1. The multi-stage vibrating screening machine of the present utility model realizes the adjustment of the feeding speed of the screening machine by setting a bracket, a box body, a feeding hopper, a discharge port, a vibrating motor, a sieve plate, a first threaded rod, a second threaded rod, a first sliding rod, a motor, a first belt pulley, a second belt pulley, a belt, a brush plate, a connecting block, an installation frame, a baffle plate, a sliding block A, a fixing plate, a bidirectional lead screw, a second sliding rod and a rotating head. It can ensure that the materials are evenly distributed on the surface of the sieve plate, prevent the sieve plate from being overloaded due to overloading or too fast feeding, and can remove the residual materials embedded in the mesh holes of the sieve plate, preventing the inlays from affecting the screening effect of the screening machine, thereby prolonging the service life of the equipment and improving production efficiency.

[0013] 2. The multi-stage vibrating screening machine of the present utility model realizes that the operator can quickly disassemble and assemble the sieve plate by setting a limit sleeve, a limit block, a spring and a sliding block B, thereby facilitating the cleaning and replacement of the sieve plate, simplifying the operation process and reducing the physical burden on the operator, significantly shortening the equipment downtime and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the multi-stage vibrating screening machine provided by the embodiment of the present utility model.

[0016] Figure 2 It is a cross-sectional view of the multi-stage vibrating screening machine provided by the embodiment of the present utility model.

[0017] Figure 3 It is a partial structural schematic diagram of the brush plate, the motor, the first belt pulley, the second belt pulley and the belt of the multi-stage vibrating screening machine provided by the embodiment of the present utility model.

[0018] Figure 4 It is a partial structural schematic diagram of the installation frame, the fixing plate, the bidirectional lead screw and the second sliding rod of the multi-stage vibrating screening machine provided by the embodiment of the present utility model.

[0019] Figure 5 It is an exploded view of the sieve plate and the limit sleeve of the multi-stage vibrating screening machine provided by the embodiment of the present utility model.

[0020] Figure 6 It is the multi-stage vibrating screening machine provided by the embodiment of the present utility model Figure 5 The enlarged view at A in

[0021] Among them, each reference numeral in the figures:

[0022] 1—Bracket 2—Box body 3—Feeding port

[0023] 4—Discharging port 5—Vibration motor 6—Sieve plate

[0024] 7—First threaded rod 8—Second threaded rod 9—First sliding rod

[0025] 10—Motor 11—First pulley 12—Second pulley

[0026] 13—Belt 14—Brush plate 15—Connecting block

[0027] 16—Installation frame 17—Baffle 18—Slider A

[0028] 19—Fixed plate 20—Bidirectional lead screw 21—Second sliding rod

[0029] 22—Rotating head 23—Limit sleeve 24—Limit block

[0030] 25—Spring 26—Slider B. Detailed implementation manners

[0031] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions from beginning to end. The following is through reference to the attached Figures 1-6 The described embodiments are exemplary and are intended to explain the embodiments of the present utility model, and should not be construed as a limitation to the present utility model.

[0032] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0034] In the embodiments of the present utility model, unless otherwise clearly specified and defined, the terms "installation", "connection", "attachment", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0035] In one embodiment of the present utility model, as Figures 1-4As shown, a multi-stage vibrating screen is provided, which includes a bracket 1, a box body 2, a feed hopper 3, a discharge port 4 and a vibrating motor 5. A sieve plate 6 is slidably connected inside the box body 2 to screen materials. A first threaded rod 7 and a second threaded rod 8 are rotatably connected inside the box body 2. A first slide rod 9 is fixedly installed inside the box body 2. A motor 10 is fixedly installed on the side of the box body 2 to rotate the first threaded rod 7. A first pulley 11 is fixedly installed at one end of the first threaded rod 7. A second pulley 12 is fixedly installed at one end of the second threaded rod 8 to install a belt 13. The first pulley 11 and the second pulley 12 are drivingly connected to the belt 13 on the surface. A brush plate 14 is slidably connected inside the box body 2 to install a connecting block 15. A connecting block 15 is fixedly installed on the side of the brush plate 14. An installation frame 16 is fixedly installed on the surface of the feed hopper 3 to install a baffle 17, a fixing plate 17 and a bidirectional lead screw 20. The baffle 17 is slidably connected inside the installation frame 16. A sliding block A 18 is fixedly installed on the side of the baffle 17. A fixing plate 19 is fixedly installed on the side of the installation frame 16. A bidirectional lead screw 20 is rotatably connected inside the installation frame 16. A second slide rod 21 is fixedly installed inside the installation frame 16. The output end of the motor 10 is fixedly connected to one end of the first threaded rod 7. The first threaded rod 7 and the second threaded rod 8 are threadedly connected to the connecting block 15. The connecting block 15 is slidably connected to the first slide rod 9. By the motor 10, the first threaded rod 7 can rotate, so that the connecting block 15 drives the brush plate 14 to move. The design of the first slide rod 9 makes the brush plate 14 move more stably during the movement. The lower surface of the brush plate 14 is attached to the surface of the sieve plate 6. The number of the brush plate 14 and the sieve plate 6 is two groups. The residual materials embedded in the mesh holes of the sieve plate 6 can be removed by the brush plate 14 to avoid affecting the screening effect of the screen. The sliding block A 18 is slidably connected to the installation frame 16. The bidirectional lead screw 20 is threadedly connected to the sliding block A 18. The sliding block A 18 is slidably connected to the second slide rod 21. By the bidirectional lead screw 20, the sliding block A 18 drives the baffle 17 to move, so as to appropriately adjust the feeding speed of the feed hopper 3. A turning head 22 is fixedly installed at one end of the bidirectional lead screw 20. The bidirectional lead screw 20 is rotatably connected to the fixing plate 19. Through the design of the turning head 22 and the fixing plate 19, it is convenient for the operator to rotate the bidirectional lead screw 20.

[0036] As Figure 5 , 6As shown, a limiting sleeve 23 is fixedly installed on the side of the box body 2, and the internal sliding connection of the limiting sleeve 23 is limited to a block 24, and a spring 25 is fixedly installed inside the limiting sleeve 23. A sliding block B26 is fixedly installed on the side of the sieve plate 6, so that the operator can quickly remove the sieve plate 6 from the inside of the box body 2, thereby facilitating cleaning and replacement. The simplified maintenance process reduces the physical burden on the operator, can significantly shorten the equipment downtime, and improve production efficiency. One end of the spring 25 is fixedly connected to the side of the limiting block 24, and the limiting block 24 is slidably connected to the sliding block B26. Through the design of the limiting block 24 and the spring 25, the sieve plate 6 is fixed and stuck inside the box body 2.

[0037] At least one of the above embodiments of the present invention can at least achieve that when the staff uses the equipment, they first put the material into the box body 2 through the feed hopper 3, and then start the vibration motor 5. The material put into the box body 2 will fall on the surface of the screen plate 6, and can be screened by the cooperation of the screen plate 6 and the vibration motor 5, and the screened material is discharged from the discharge port 4. When the material is put into the feed hopper 3, the bidirectional screw rod 20 can be rotated by rotating the turntable 22. Since the sliding block A18 is threadedly connected to the bidirectional screw rod 20, the sliding block A18 drives the baffle plate 17 to move in the opposite direction or reverse direction. At the same time, the sliding block A18 will slide on the surface of the slide bar 21, making it more stable when moving, so that the inlet size of the feed hopper 3 can be adjusted, and the feeding speed of the screening machine can be adjusted to prevent overloading or too fast feeding from causing the screen plate 6 to be overloaded. When the motor 10 is started, the motor 10 will drive the threaded rod 1 7 and the pulley 1 11 rotates, and since the surface transmission of pulley 11 and pulley 2 12 is connected with belt 13, threaded rod 2 8 rotates synchronously, and since threaded rod 1 7 and threaded rod 2 8 are threadedly connected with connecting block 15, connecting block 15 drives brush plate 14 to move horizontally, and brush plate 14 will brush the surface of sieve plate 6, thereby can remove residual material embedded in the mesh of sieve plate 6, and prevent the embedded material from affecting the screening effect of screening machine. When sieve plate 6 needs to be disassembled, first pull the limit block 24 to make it slide out from the inside of sliding block B26, and at the same time the spring 25 will be compressed. At this time, grab the handle on the side of sieve plate 6 and pull it, so that sieve plate 6 can be taken out from the inside of box body 2, thereby enabling the operator to quickly disassemble and assemble sieve plate 6, thereby facilitating its cleaning and replacement, simplifying the operation process and reducing the physical burden on the operator, which can significantly shorten the equipment downtime and improve production efficiency.

[0038] The above description is only a preferred embodiment of the present invention and is 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. Multi-stage vibrating screening machine, comprising a bracket (1), a box body (2), a feed hopper (3), a discharge port (4) and a vibrating motor (5), characterized in that: A sieve plate (6) is slidably connected inside the box body (2). A first threaded rod (7) and a second threaded rod (8) are rotatably connected inside the box body (2). A first slide rod (9) is fixedly installed inside the box body (2). A motor (10) is fixedly installed on the side of the box body (2). A first pulley (11) is fixedly installed at one end of the first threaded rod (7). A second pulley (12) is fixedly installed at one end of the second threaded rod (8). A belt (13) is drivingly connected to the surfaces of the first pulley (11) and the second pulley (12). A brush plate (14) is slidably connected inside the box body (2). A connecting block (15) is fixedly installed on the side of the brush plate (14). An installation frame (16) is fixedly installed on the surface of the feed hopper (3). A baffle plate (17) is slidably connected inside the installation frame (16). A sliding block A (18) is rotatably connected inside the installation frame (16). A fixing plate (19) is fixedly installed on the side of the installation frame (16). A bidirectional lead screw (20) is rotatably connected inside the installation frame (16). A second slide rod (21) is fixedly installed inside the installation frame (16).

2. The multi-stage vibrating screening machine according to claim 1, wherein: The output end of the motor (10) is fixedly connected to one end of the first threaded rod (7). The first threaded rod (7) and the second threaded rod (8) are threadedly connected to the connecting block (15). The connecting block (15) is slidably connected to the first slide rod (9).

3. The multi-stage vibrating screening machine according to claim 1, characterized in that: The lower surface of the brush plate (14) is in contact with the surface of the sieve plate (6). The number of the brush plates (14) and the sieve plates (6) is two groups.

4. The multi-stage vibrating screening machine according to claim 1, wherein: The sliding block A (18) is slidably connected to the installation frame (16). The bidirectional lead screw (20) is threadedly connected to the sliding block A (18). The sliding block A (18) is slidably connected to the second slide rod (21).

5. The multi-stage vibrating screening machine according to claim 1, wherein: A turning head (22) is fixedly installed at one end of the bidirectional lead screw (20). The bidirectional lead screw (20) is rotatably connected to the fixing plate (19).

6. The multi-stage vibrating screening machine according to claim 1, wherein: A limit sleeve (23) is fixedly installed on the side of the box body (2). A limit block (24) is slidably connected inside the limit sleeve (23). A spring (25) is fixedly installed inside the limit sleeve (23). A sliding block B (26) is fixedly installed on the side of the sieve plate (6).

7. The multi-stage vibrating screening machine according to claim 6, wherein: One end of the spring (25) is fixedly connected to the side of the limit block (24). The limit block (24) is slidably connected to the sliding block B (26).

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