Banana vibrating screen

Abstract

The invention relates to the technical field of vibrating screens, and particularly discloses a banana vibrating screen which comprises a screen box, a vibration exciter and an adjusting assembly, the vibration exciter is arranged on the screen box and used for driving the screen box to vibrate, a feeding port is formed in the screen box, and the adjusting assembly is arranged at the feeding port. The adjusting assembly comprises a first baffle, a second baffle, a third baffle, a first control mechanism and a movable plate, the first baffle and the second baffle are obliquely arranged at the feeding port, the first baffle and the second baffle are distributed at intervals, the second baffle is located above the first baffle, and a first channel is formed between the first baffle and the second baffle; a first channel is formed above the first baffle, a second channel is formed above the second baffle, the third baffle is arranged at the feeding port, a V-shaped opening is formed in the middle area of the third baffle, the multiple movable plates are continuously distributed at the V-shaped opening, and each movable plate corresponds to one first control mechanism; according to the banana vibrating screen, materials can be evenly distributed through the adjusting assembly, and the situation that the screening efficiency is reduced due to uneven material distribution is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of vibrating screens, and in particular to a banana vibrating screen. Background Art

[0002] The banana vibrating screen is a screening machine improved on the basis of the traditional linear screen. The banana vibrating screen usually consists of a screen box, an exciter, and a vibration damping device. The screen box is used for screening materials, the exciter is used to provide a vibration source, and the vibration damping device is used to reduce the impact of the vibration of the screen box on the foundation, thereby reducing noise and energy loss. The screen surface of the banana vibrating screen is composed of a plurality of broken lines with different inclinations. The inclination angle at the feeding end of the banana vibrating screen is larger, and the inclination angle gradually decreases, forming a gradually changing slope structure. The larger inclination angle at the feeding end of the banana vibrating screen can accelerate the flow of large particles of materials, prompt fine particles to quickly contact the screen surface, and the subsequent decrease in the inclination angle slows down the flow rate and prolongs the screening time to ensure efficient classification. This design makes the materials more evenly distributed on the screen surface and the thickness of the material layer remains consistent, thereby improving the screening efficiency.

[0003] The Chinese patent document with the authorization announcement number CN118371428B discloses a multi-section screening type banana vibrating screen, which includes: a screen box, a screening component is provided at the bottom of the screen box, the screening component includes movable frames distributed in an array, a rotary connection component is provided between two adjacent movable frames, an angle adjustment component is provided outside the rotary connection component, the angle adjustment component includes mounting sleeves symmetrically arranged on both sides of the movable frame, the mounting sleeve is connected to the rotary connection component, a hydraulic push rod is provided below the mounting sleeve, the telescopic end of the hydraulic push rod is connected to the mounting sleeve, the fixed end of the hydraulic push rod is connected with a mounting seat, the mounting seat is connected to the screen box, a pore size adjustment component is provided at the bottom of a single movable frame, the pore size adjustment component has a partition plate, and the partition plate can divide the mesh holes of the screen into two different areas, and the pore size adjustment component adjusts the screening efficiency of the screening component.

[0004] The above-mentioned banana vibrating screen can adjust different areas of the screen mesh holes by moving the partition plate in the pore size adjustment component, and can then adjust the actual size of the mesh holes as needed to adapt to different working conditions; the above-mentioned banana vibrating screen can also adjust the angle change between two movable frames by changing the shape of the angle adjustment component, thereby adjusting the slope of the screen, adjusting the moving speed of the materials on the screen, and then controlling the residence time of the materials on the screen.

[0005] However, usually, in order to prevent materials from spilling, the feed inlet of the banana vibrating screen is generally larger than the size of the conveyor belt, resulting in most materials piling up in the middle position of the vibrating screen during feeding, with less materials on both sides of the vibrating screen. As a result, the materials are unevenly distributed on the vibrating screen. When the thickness of the materials in the middle position of the vibrating screen is too thick, the screening efficiency in the middle position of the vibrating screen will be lower than that on both sides of the vibrating screen, causing the materials in the middle position of the vibrating screen to remain unscreened when the materials on both sides of the vibrating screen are screened, thus affecting the overall screening efficiency of the vibrating screen. The material leveling mechanism of the above patent can only deflect the materials to one side of the two sides during feeding, and cannot achieve the uniform distribution of materials on the entire screen during feeding. Summary of the Invention

[0006] The present invention provides a banana vibrating screen, aiming to solve the problem of uneven material distribution in the related art.

[0007] The banana vibrating screen of the present invention includes: a screen box, an exciter, and an adjustment assembly; The exciter is arranged on the screen box, and a feed inlet is arranged on the screen box; The adjustment assembly includes a first baffle, a second baffle, a third baffle, a first control mechanism, and a movable plate. The first baffle and the second baffle are both inclined and arranged at the feed inlet. The first baffle and the second baffle are spaced apart. The second baffle is located above the first baffle. A first channel is formed between the first baffle and the second baffle. A second channel is formed above the second baffle. The third baffle is inclined and arranged at the feed inlet and has an inclination direction opposite to that of the first baffle and the second baffle. The materials in the first channel can fall to the bottom end of the third baffle, and the materials in the second channel can fall to the top end of the third baffle. A V-shaped opening is arranged in the middle area of the third baffle. A plurality of the movable plates are continuously distributed at the V-shaped opening. Each movable plate corresponds to a first control mechanism. The first control mechanism can control the corresponding movable plate to move and cover the V-shaped opening.

[0008] Beneficial effects: After the material enters the feed inlet, it will fall on the first baffle. If the material is concentrated in the middle area of the first baffle and the thickness of the material is greater than the distance between the first baffle and the second baffle, most of the material will enter the first channel. The part of the material that is higher than the distance between the first baffle and the second baffle will enter the second channel. The material in the first channel moves downward along the first baffle under the action of gravity and falls on the middle position of the lower area of the third baffle. The material in the second channel moves downward along the second baffle under the action of gravity and falls on the middle position of the upper area of the third baffle. The material that falls on the lower area of the third baffle continues to move downward along the third baffle under the action of gravity. Since the material in the lower area of the third baffle is concentrated in the middle position of the third baffle, when the material in the lower area of the third baffle passes through the first control mechanism, it will cause the movable plate located in the middle position of the third baffle to move upward. When the material in the upper area of the third baffle moves downward along the third baffle under its gravity, it will be blocked by the movable plate at the middle position of the third baffle. This part of the material will move along the movable plate to both sides of the third baffle and enter the V-shaped opening from both sides of the third baffle, and then fall on the sieve box under the action of gravity. The material in the lower area of the third baffle will fall on the middle position of the sieve box under the action of gravity. The material falling from the V-shaped opening will fall on both sides of the sieve box, thus realizing the uniform distribution of the material on the sieve box.

[0009] Preferably, the first control mechanism includes a rotating plate, a first connecting rod, a first rotating rod and a first elastic member. The rotating plate is rotatably fitted at the bottom end of the third baffle. The first connecting rod is arranged at the bottom of the rotating plate. The middle area of the first rotating rod is rotatably connected to the third baffle. The two ends of the first rotating rod are respectively rotatably fitted with the first connecting rod and the movable plate. One end of the first elastic member is connected to the movable plate, and the other end is connected to the third baffle.

[0010] The effect is that when the material passes through the rotating plate, the gravity of the material will push the rotating plate to rotate downward. The first connecting rod rotates synchronously with the rotating plate. The first connecting rod pushes the first rotating rod to rotate downward. Under the seesaw principle, the other end of the first rotating rod will rotate upward and push the movable plate to move upward against the elastic force of the first elastic member. After the material passes through the rotating plate, the first elastic member releases the elastic force and pushes the movable plate to move downward and reset. The movable plate pushes the first rotating rod to reset. The first rotating rod pushes the movable plate to reset through the first connecting rod. Using the gravity of the material to drive the first rotating rod to rotate, thereby driving the movable plate to rotate, without an additional power source, saving energy.

[0011] Preferably, a first mating groove and a second mating groove are respectively provided at both ends of the first rotating rod, a first mating shaft is provided on the first connecting rod, and a second mating shaft is provided on the movable plate. The first mating shaft slides in the first mating groove, and the second mating shaft slides in the second mating groove.

[0012] The effect is that when the first connecting rod pushes one end of the first rotating rod to rotate downward, the first matching shaft can slide in the first matching groove, avoiding the first rotating rod from interfering with the first connecting rod. Similarly, when the other end of the first rotating rod rotates upward and pushes the movable plate to move upward, the second matching shaft slides in the second matching groove, avoiding the first rotating rod from interfering with the movable plate.

[0013] Preferably, a limiting groove is provided at the bottom end of the third baffle, and the rotating plate is rotatably fitted in the limiting groove. The bottom surface of the limiting groove can abut against the rotating plate, and the limiting groove is used to limit the rotation range of the rotating plate.

[0014] Preferably, a fourth baffle is provided below the second baffle, the fourth baffle is vertically distributed with the third baffle, the fourth baffle is spaced apart from the third baffle, and there is a gap between the fourth baffle and the third baffle.

[0015] The effect is that the fourth baffle is set so that the material falling on the upper area of the third baffle needs to pass through the gap between the fourth baffle and the third baffle before entering the V-shaped opening. When the thickness of the material in the upper area of the third baffle is greater than the gap between the fourth baffle and the third baffle, the excess material will continue to move along the fourth baffle to both sides of the third baffle, thereby preventing too much material from entering the V-shaped opening, resulting in uneven distribution of the material on the screen box.

[0016] Preferably, the movable plate can abut against the fourth baffle, and the movable plate can cover the gap between the corresponding fourth baffle and the third baffle.

[0017] The effect is that, through the abutment between the movable plate and the fourth baffle, it is possible to prevent excess material from passing over the movable plate and directly entering the V-shaped opening.

[0018] Preferably, extension plates are provided on both sides of the second baffle, and the extension plates are slidably engaged with the first baffle. A second control mechanism is provided on the first baffle, and the second control mechanism includes a rotating block, a second connecting rod, a second rotating rod, a fixed shaft and a second elastic member. The rotating block is rotatably engaged with the first baffle, and the second connecting rod is provided on the rotating block. The two ends of the fixed shaft are respectively connected to the two extension plates, and the middle area of the second rotating rod is rotatably connected to the first baffle. One end of the second rotating rod is rotatably engaged with the second connecting rod, and the other end thereof is stopped at the bottom end of the fixed shaft. The fixed shaft is connected to the first baffle through the second connecting rod.

[0019] The effect is that when too much material is input, the material will fill the first channel. At this time, the material contacts the rotating block and presses the rotating block downward. The rotating block rotates downward, and the second connecting rod rotates downward synchronously with the rotating block. The second connecting rod pushes one end of the second rotating rod to rotate downward. Under the action of the seesaw principle, the other end of the second rotating rod tilts upward and pushes the fixed shaft to overcome the elastic force of the second elastic member and move upward. The extension plate and the second baffle move upward synchronously with the fixed shaft, thereby making the second baffle away from the first baffle, enlarging the first channel, and preventing material from being blocked in the first channel.

[0020] Preferably, a third matching groove is provided on the second rotating rod, and a third matching shaft is provided on the second connecting rod, and the third matching shaft is slidably fitted in the third matching groove.

[0021] Preferably, a fourth matching groove is provided on the fourth baffle, and a slider is provided at the bottom end of the second baffle, and the slider is slidably fitted in the fourth matching groove.

[0022] Preferably, a guide groove is provided on the side wall of the screen box, and the fourth baffle is slidably fitted in the guide groove.

[0023] By adopting the above technical solution, the beneficial effects of the present invention are: The banana vibrating screen of the present invention can input materials through the feed inlet. After the materials enter the feed inlet, they can fall on the first baffle. If the materials are concentrated in the middle area of the first baffle and the thickness of the materials is greater than the distance between the first baffle and the second baffle, most of the materials will enter the first channel, and the part of the materials higher than the distance between the first baffle and the second baffle will enter the second channel. The materials in the first channel will move downward along the first baffle under the action of gravity and fall on the middle position of the lower area of the third baffle. The materials in the second channel will move downward along the second baffle under the action of gravity and fall on the middle position of the upper area of the third baffle. The materials falling on the lower area of the third baffle will continue to move downward along the third baffle under the action of gravity. Since the materials in the lower area of the third baffle are concentrated in the middle position of the third baffle, when the materials in the lower area of the third baffle pass through the first control mechanism, the movable plate located in the middle position of the third baffle will move upward. When the materials in the upper area of the third baffle move downward along the third baffle under the action of their gravity, they will be blocked by the movable plate at the middle position of the third baffle. This part of the materials will move along the movable plate to both sides of the third baffle and enter the V-shaped opening from both sides of the third baffle, and then fall on the sieve box under the action of gravity. The materials in the lower area of the third baffle will fall on the middle position of the sieve box under the action of gravity, and the materials falling from the V-shaped opening will fall on both sides of the sieve box, thus realizing the uniform distribution of the materials on the sieve box. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the banana vibrating screen according to an embodiment of the present invention.

[0025] Figure 2 is a schematic structural diagram of the adjustment assembly of the banana vibrating screen according to an embodiment of the present invention.

[0026] Figure 3 is a schematic diagram of the cooperation between the first baffle and the second baffle according to an embodiment of the present invention.

[0027] Figure 4 is Figure 3 bottom view of

[0028] Figure 5 is Figure 3 cross-sectional view of

[0029] Figure 6 is a schematic structural diagram of the rotating block according to an embodiment of the present invention.

[0030] Figure 7 is a top view of the third baffle according to an embodiment of the present invention.

[0031] Figure 8 is a bottom view of the third baffle according to an embodiment of the present invention.

[0032] Figure 9 It is a side view of the third baffle of an embodiment of the present invention.

[0033] Figure 10 It is a schematic structural diagram of the first control component of an embodiment of the present invention.

[0034] Reference numerals: 100, screening box; 101, partition plate; 200, vibrator; 1, first baffle; 2, second baffle; 21, extension plate; 3, third baffle; 31, V-shaped opening; 4, movable plate; 51, rotating plate; 52, first connecting rod; 53, first rotating rod; 531, first mating groove; 532, second mating groove; 54, first mounting seat; 55, first elastic member; 61, rotating block; 62, second connecting rod; 621, third mating shaft; 63, second rotating rod; 64, second mounting seat; 65, fixed shaft; 66, second elastic member; 7, fourth baffle; 71, fourth mating groove. Detailed implementation manners

[0035] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as a limitation to the present invention.

[0036] As Figures 1 to 10 shown, the banana vibrating screen of the present invention includes: a screening box 100, a vibrator 200, and an adjusting component. The screening box 100 is used for screening materials, the vibrator 200 is used for driving the screening box 100 to vibrate, and the adjusting component is used for uniformly feeding materials into the screening box 100.

[0037] Specifically, as Figure 1 shown, the screening box 100 is the screening box of a banana vibrating screen in the prior art. The screening box 100 is in a banana shape and is placed obliquely. An external receiving box can be arranged below it. A partition plate 101 is fixedly arranged in the screening box 100. An inlet is formed between the partition plate 101 and the front side wall of the screening box 100. The bottom end of the screening box 100 is its outlet. A plurality of fixed seats are arranged in the screening box 100. Each fixed seat is fixedly connected to the screening box 100, and an obtuse angle is formed between adjacent fixed seats. The plurality of fixed seats can form an arc structure in the screening box 100. A screen can be detachably installed on each fixed seat. The screen at the bottom end of the screening box 100 is horizontally arranged, and the larger the angle between the screen and the horizontal plane is as it gets closer to the inlet of the screening box 100.

[0038] On both sides of the sieve box 100, there are support frames which are supported on the ground. The vibrator 200 is fixedly arranged on the support frames. The vibrator 200 is a vibrator in conventional technology and includes a drive motor, a rotating shaft, an eccentric block and a mating seat. The drive motor is fixedly arranged on the support frames, the mating seat is fixedly arranged on the side wall of the sieve box 100, the rotating shaft is rotatably fitted on the sieve box 100, and its two ends respectively pass through the side wall of the sieve box 100 and extend outwards. There is a belt between the output end of the drive motor and the end of the rotating shaft. The drive motor drives the rotating shaft to rotate through the belt. The eccentric block is fixedly connected to the rotating shaft. When the rotating shaft rotates, it can drive the eccentric block to rotate around the rotating shaft. The eccentric block is slidably fitted in the mating seat. When the eccentric block rotates above the rotating shaft, it will push the sieve box 100 to move upwards through the mating seat. When the eccentric block rotates below the rotating shaft, under the action of the self-gravity of the sieve box 100, the sieve box 100 will move downwards, so that the sieve box 100 can vibrate up and down. The sieve box 100 is connected to an external material receiving box through a shock absorber, and the shock absorber is a spring. The shock absorber is used to prevent the external material receiving box from vibrating synchronously with the sieve box 100.

[0039] Such as Figures 1 to 6As shown, the adjusting assembly includes a first baffle 1, a second baffle 2, a third baffle 3, a first control mechanism, and a movable plate 4. The first baffle 1 is located within the feed inlet and is inclined. The top end of the first baffle 1 is its front end, and the front end of the first baffle 1 is fixedly connected to the front side wall of the sieve box 100. The rear end of the first baffle 1 slopes downward. The second baffle 2 is arranged in parallel and at an interval with the first baffle 1. The second baffle 2 is located above the first baffle 1. A first channel is formed between the first baffle 1 and the second baffle 2, and a second channel is formed above the second baffle 2. Extension plates 21 are fixedly arranged on both sides of the second baffle 2. The extension plates 21 are perpendicularly distributed with the second baffle 2. The extension plates 21 can pass through the first baffle 1 and extend obliquely downward. The extension plates 21 are in sliding fit with the first baffle 1. A second control mechanism is provided on the first baffle 1. The second control mechanism includes a rotating block 61, a second connecting rod 62, a second rotating rod 63, a fixed shaft 65, and a second elastic member 66. The two rotating blocks 61 are both rotatably fitted on the first baffle 1. The two rotating blocks 61 are respectively located on both sides of the first baffle 1. The top end of each rotating block 61 is rotatably connected to the first baffle 1 through a rotating shaft. The rotating block 61 can rotate relative to the first baffle 1 around its connection with the first baffle 1. Two avoidance grooves are provided on the first baffle 1. Each avoidance groove corresponds to a rotating block 61. When the rotating block 61 rotates downward, it can slide within the avoidance groove, thereby preventing the first baffle 1 from obstructing the rotation of the rotating block 61. The top end of the second connecting rod 62 is fixedly connected to the bottom surface of the rotating block 61. A second mounting seat 64 is fixedly arranged on the bottom surface of the first baffle 1. A rotating shaft is fixedly arranged at the bottom end of the second mounting seat 64. The middle region of the second rotating rod 63 is rotatably connected to the second mounting seat 64 through the rotating shaft. A third mating groove is provided at the rear end of the second rotating rod 63. A third mating shaft 621 is provided at the bottom end of the second connecting rod 62. The third mating shaft 621 is in sliding fit within the third mating groove. The fixed shaft 65 is located below the first baffle 1. The two ends of the fixed shaft 65 are respectively fixedly connected to the two extension plates 21. The second elastic member 66 is located between the fixed shaft 65 and the first baffle 1. The second elastic member 66 is a spring. One end of it is fixedly connected to the fixed shaft 65, and the other end is fixedly connected to the first baffle 1. The front top of the second rotating rod 63 abuts against the bottom end of the fixed shaft 65.

[0040] When the rotating block 61 rotates downward, the second connecting rod 62 rotates downward synchronously with the rotating block 61. During the rotation process of the second connecting rod 62, a downward thrust is applied to the rear end of the second rotating rod 63, thereby pushing the rear end of the second rotating rod 63 to rotate downward, causing the second rotating rod 63 to rotate around its connection with the second mounting seat 64. As a result, the front end of the second rotating rod 63 rotates upward, and the second rotating rod 63 applies an upward thrust to the fixed shaft 65, enabling the fixed shaft 65 to move upward against the elastic force of the second elastic member 66. The extension plate 21 and the second baffle 2 move synchronously with the fixed shaft 65, allowing the second baffle 2 to move away from the first baffle 1, and the distance between the second baffle 2 and the first baffle 1 increases.

[0041] As Figure 2 , Figures 7 to 10 shown, the third baffle 3 is located within the feed inlet. The height of the third baffle 3 is lower than that of the first baffle 1. The third baffle 3 is inclined, and its inclined direction is opposite to that of the first baffle 1. The top end of the third baffle 3 is its rear end, and the rear end of the third baffle 3 is fixedly connected to the partition plate 101. The front end of the third baffle 3 slopes downward. The third baffle 3 is provided with a V-shaped opening 31, and the V-shaped opening 31 is located in the middle area of the third baffle 3. A plurality of movable plates 4 are continuously distributed at the V-shaped opening 31 and are in contact with the front side wall of the V-shaped opening 31. Each movable plate 4 is slidably engaged with the third baffle 3. The third baffle 3 is provided with a plurality of first control components, and each first control component corresponds to a movable plate 4. The first control component includes a rotating plate 51, a first connecting rod 52, a rotating rod, and a first elastic member 55. Each movable plate 4 is provided with a first elastic member 55. The first elastic member 55 is a spring, one end of which is fixedly connected to the movable plate 4, and the other end of which is fixedly connected to the bottom surface of the third baffle 3. A limiting groove is provided at the top of the front end of the third baffle 3, and the rotating plate 51 is rotatably engaged in the limiting groove. The bottom surface of the rotating plate 51 can abut against the bottom surface of the limiting groove, and the limiting groove can limit the rotation range of the rotating plate 51. When the rotating plate 51 rotates downward to the limit, its bottom surface abuts against the bottom surface of the limiting groove. At this time, the top surface of the limiting groove is flush with the top surface of the third baffle 3. The top end of the first connecting rod 52 is fixedly connected to the rotating plate 51, and a first mating shaft is fixedly provided at the bottom end of the first connecting rod 52. A first mounting seat 54 is fixedly provided at the bottom end of the third baffle 3, and a rotating shaft is fixedly provided at the bottom end of the first mounting seat 54. The middle region of the first rotating rod 53 is rotatably connected to the first mounting seat 54 through the rotating shaft. A first mating groove 531 is provided at the front end of the first rotating rod 53, and the first mating shaft is slidably engaged in the first mating groove 531. A second mating shaft is fixedly provided at the bottom end of the movable plate 4, and a second mating groove 532 is provided at the rear end of the second rotating rod 63. The second mating shaft is slidably engaged in the second mating groove 532.

[0042] In the initial state, there is an included angle between the rotating plate 51 and the third baffle 3. When the rotating plate 51 rotates downward relative to the third baffle 3, the first connecting rod 52 moves downward synchronously with the rotating plate 51. During the downward rotation of the first connecting rod 52, a downward thrust is applied to the front end of the first rotating rod 53, thereby pushing the front end of the first rotating rod 53 to rotate downward, causing the first rotating rod 53 to rotate around its connection with the first mounting seat 54. As a result, the rear end of the first rotating rod 53 rotates upward. When the rear end of the first rotating rod 53 rotates upward, an upward thrust is applied to the movable plate 4, thereby causing the movable plate 4 to move upward against the elastic force of the first elastic member 55.

[0043] As Figure 2 , Figure 3 and Figure 7 shown, a fourth baffle 7 is further provided below the second baffle 2. The fourth baffle 7 is of a V-shaped structure and has the same shape as the V-shaped opening 31. The fourth baffle 7 is perpendicularly distributed to the third baffle 3. There is a gap between the fourth baffle 7 and the third baffle 3, and the height of the gap is the same as the distance between the first baffle 1 and the second baffle 2. A fourth mating groove 71 is provided at the top end of the fourth baffle 7, and a slider is provided at the bottom end of the second baffle 2. The slider is slidably fitted in the fourth mating groove 71. A guide groove is provided on the side wall of the sieve box 100. The fourth baffle 7 can extend into the guide groove and is slidably fitted with the guide groove. When the second baffle 2 approaches or moves away from the first baffle 1, the second baffle 2 can push the fourth baffle 7 to move through the slider, so that the fourth baffle 7 moves along the guide groove, enabling the fourth baffle 7 to approach or move away from the third baffle 3.

[0044] The implementation principle of the banana vibrating sieve according to the embodiment of the present invention is as follows: The interval between the first baffle 1 and the second baffle 2 is the maximum thickness of the material under the condition of ensuring the screening capacity of the sieve mesh. After the material is poured into the sieve box 100 from the feed port, if the material is concentrated in the middle area of the first baffle 1, most of the material will slide downward obliquely along the first channel formed between the first baffle 1 and the second baffle 2. The second baffle 2 can separate the excess material and cause the excess material to be above the second baffle 2 and slide downward along the second baffle 2. The material moves along the first channel and detaches from the first baffle 1 at the rear end of the first channel. The material falls downward under the action of gravity and lands on the front end of the third baffle 3. The excess material slides downward obliquely along the second baffle 2. When this part of the material detaches from the second baffle 2, it will land on the rear end of the third baffle 3 under the action of gravity.

[0045] The materials that fall on the front end of the baffle will slide down obliquely along the third baffle 3. When the materials slide to the bottom end of the third baffle 3, the materials will pass through the movable plate 4 on their moving path. The gravity of the materials themselves will push the rotating plate 51 to rotate downward. The first connecting rod 52 moves downward synchronously with the rotating plate 51. During the downward rotation of the first connecting rod 52, it will exert a downward thrust on the front end of the first rotating rod 53, thereby pushing the front end of the first rotating rod 53 to rotate downward, causing the first rotating rod 53 to rotate around its connection with the first mounting seat 54, and further causing the rear end of the first rotating rod 53 to rotate upward. When the rear end of the first rotating rod 53 rotates upward, it will exert an upward thrust on the movable plate 4, so that the movable plate 4 moves upward against the elastic force of the first elastic member 55. The movable plate 4 moves upward until it abuts against the fourth baffle 7, thereby being able to close the gap between the fourth baffle 7 and the third baffle 3, preventing the materials that fall on the rear end of the third baffle 3 from entering the V-shaped opening 31 from this area. Since the materials at the front end of the third baffle 3 are concentrated in the middle area of the third baffle 3, the movable plate 4 located in the middle area of the V-shaped opening 31 moves upward. The materials that fall on the rear end of the third baffle 3 move downward obliquely along the third baffle 3. The movable plate 4 in the middle area of the third baffle 3 hinders the materials from entering the V-shaped opening 31 from the middle area of the third baffle 3. The materials can only slide along the movable plate 4 to both sides of the third baffle 3 and enter the V-shaped opening 31 from both sides of the third baffle 3. If there are more materials at the rear end of the third baffle 3, making the thickness of the materials at the rear end of the third baffle 3 greater than the gap between the fourth baffle 7 and the third baffle 3, the materials will continue to move to both sides of the third baffle 3 along the fourth baffle 7, ensuring that the thickness of the materials entering the V-shaped opening 31 at the same time is within a certain range. After the materials enter the V-shaped opening 31, they fall downward under the action of gravity and fall on both sides of the sieve. The materials that fall downward from the front end of the third baffle 3 fall on the middle area of the sieve, thus realizing the uniform distribution of the materials on the sieve.

[0046] Some materials need to be screened multiple times. When initially screening the materials, only the screening speed of the materials needs to be ensured, and there is no need to perform fine screening on the materials. Therefore, excessive materials are often input into the feed inlet. When the amount of materials entering the feed inlet is too large, the materials will fill the space between the first baffle 1 and the second baffle 2. When the materials pass through the rotating block 61, the gravity of the materials will push the rotating block 61 to rotate downward. The second connecting rod 62 rotates downward synchronously with the rotating block 61. During the rotation of the second connecting rod 62, a downward thrust is applied to the rear end of the second rotating rod 63, thereby pushing the rear end of the second rotating rod 63 to rotate downward, causing the second rotating rod 63 to rotate around its connection with the second mounting seat 64. As a result, the front end of the second rotating rod 63 rotates upward. The second rotating rod 63 applies an upward thrust to the fixed shaft 65, causing the fixed shaft 65 to move upward against the elastic force of the second elastic member 66. The extension plate 21 and the second baffle 2 move synchronously with the fixed shaft 65, enabling the second baffle 2 to move obliquely upward and away from the first baffle 1. The distance between the second baffle 2 and the first baffle 1 increases, facilitating the passage of materials through the first channel and preventing material blockage.

[0047] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A banana vibrating screen, comprising: Screen box, vibrator and adjustment assembly; The vibrator is arranged on the screen box, and a feed inlet is arranged on the screen box; It is characterized in that the adjustment assembly includes a first baffle, a second baffle, a third baffle, a first control mechanism and a movable plate. The first baffle and the second baffle are both inclined and arranged at the feed inlet. The first baffle and the second baffle are spaced apart. The second baffle is located above the first baffle. A first channel is formed between the first baffle and the second baffle. A second channel is formed above the second baffle. The third baffle is inclined and arranged at the feed inlet and has an inclination direction opposite to that of the first baffle and the second baffle. The material in the first channel can fall on the bottom end of the third baffle, and the material in the second channel can fall on the top end of the third baffle. A V-shaped opening is arranged in the middle area of the third baffle. A plurality of the movable plates are continuously distributed at the V-shaped opening. Each movable plate corresponds to a first control mechanism. The first control mechanism can move the corresponding movable plate and cover the V-shaped opening.

2. The banana vibrating screen according to claim 1, wherein, The first control mechanism includes a rotating plate, a first connecting rod, a first rotating rod and a first elastic member. The rotating plate is rotatably fitted at the bottom end of the third baffle. The first connecting rod is arranged at the bottom of the rotating plate. The middle area of the first rotating rod is rotatably connected to the third baffle. The two ends of the first rotating rod are respectively rotatably fitted with the first connecting rod and the movable plate. One end of the first elastic member is connected to the movable plate, and the other end is connected to the third baffle.

3. The banana vibrating screen according to claim 2, wherein, The two ends of the first rotating rod are respectively provided with a first fitting groove and a second fitting groove. The first connecting rod is provided with a first fitting shaft, and the movable plate is provided with a second fitting shaft. The first fitting shaft is slidably fitted in the first fitting groove, and the second fitting shaft is slidably fitted in the second fitting groove.

4. The banana vibrating screen according to claim 3, characterized in that, A limiting groove is arranged at the bottom end of the third baffle. The rotating plate is rotatably fitted in the limiting groove. The bottom surface of the limiting groove can abut against the rotating plate. The limiting groove is used to limit the rotation range of the rotating plate.

5. The banana vibrating screen according to claim 1, characterized in that, A fourth baffle is arranged below the second baffle. The fourth baffle and the third baffle are vertically distributed. The fourth baffle and the third baffle are spaced apart. There is a gap between the fourth baffle and the third baffle.

6. The banana vibrating screen according to claim 5, wherein The movable plate can abut against the fourth baffle, and the movable plate can cover the gap between the corresponding fourth baffle and the third baffle.

7. The banana vibrating screen according to claim 1, wherein, Extension plates are provided on both sides of the second baffle. The extension plates are slidably engaged with the first baffle. A second control mechanism is provided on the first baffle. The second control mechanism includes a rotating block, a second connecting rod, a second rotating rod, a fixed shaft, and a second elastic member. The rotating block is rotatably engaged on the first baffle. The second connecting rod is provided on the rotating block. The two ends of the fixed shaft are respectively connected to the two extension plates. The middle region of the second rotating rod is rotatably connected to the first baffle. One end of the second rotating rod is rotatably engaged with the second connecting rod, and the other end abuts against the bottom end of the fixed shaft. The fixed shaft is connected to the first baffle through the second connecting rod.

8. The banana vibrating screen according to claim 7, wherein A third mating groove is provided on the second rotating rod, and a third mating shaft is provided on the second connecting rod. The third mating shaft is slidably engaged in the third mating groove.

9. The banana vibrating screen according to claim 5, wherein A fourth mating groove is provided on the fourth baffle, and a slider is provided at the bottom end of the second baffle. The slider is slidably engaged in the fourth mating groove.

10. The banana vibrating screen according to claim 9, characterized in that, A guiding groove is provided on the side wall of the screening box, and the fourth baffle is slidably engaged in the guiding groove.

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