A banana vibrating screen

Abstract

The present invention relates to the technical field of vibrating screens, and specifically discloses a banana vibrating screen, comprising: a screen box, an exciter and an adjusting assembly, wherein the exciter is arranged on the screen box, the exciter is used to drive the screen box to vibrate, a feed port is provided on the screen box, the adjusting assembly is arranged at the feed 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 both obliquely arranged at the feed port, 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 arranged at the feed port, a V-shaped opening is provided in the middle area of ​​the third baffle, a plurality of movable plates are continuously distributed at the V-shaped opening, and each movable plate corresponds to a first control mechanism; the banana vibrating screen of the present invention can evenly distribute the material through the adjusting assembly, thereby avoiding the reduction of screening efficiency due to uneven distribution of the material.

Description

Technical Field

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

[0002] The Banana Vibrating Screen is a screening machine designed and improved upon the traditional linear screen. It typically consists of a screen box, a vibrator, and a vibration damping device. The screen box is used to screen the material, the vibrator provides the vibration source, and the vibration damping device reduces the impact of the screen box vibration on the foundation, thereby reducing noise and energy loss. The screen surface of the Banana Vibrating Screen is composed of multiple broken lines with varying inclination angles. The inclination at the feed end is larger, and this gradually decreases, forming a gradient structure. The larger inclination at the feed end accelerates the flow of large particles and encourages fine particles to quickly contact the screen surface. Subsequent reductions in the inclination slow the flow rate, extending the screening time and ensuring efficient grading. This design ensures a more even distribution of material on the screen surface and a consistent material layer thickness, thereby improving screening efficiency.

[0003] The Chinese patent document with authorization announcement number CN118371428B discloses a multi-segment screening banana vibrating screen, which includes: a screen box, a screening assembly is provided at the bottom of the screen box, the screening assembly includes movable frames distributed in an array, a rotating connection assembly is provided between two adjacent movable frames, an angle adjustment assembly is provided on the outside of the rotating connection assembly, the angle adjustment assembly includes mounting sleeves symmetrically arranged on both sides of the movable frame, the mounting sleeves are connected to the rotating connection assembly, 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 to a mounting seat, the mounting seat is connected to the screen box, an aperture adjustment assembly is provided at the bottom of a single movable frame, the aperture adjustment assembly has a partition plate, the partition plate can separate the screen mesh into two different areas, and the aperture adjustment assembly adjusts the screening efficiency of the screening assembly.

[0004] The above-mentioned banana vibrating screen can adjust different areas of the screen mesh by moving the partition plate in the aperture adjustment component, and then adjust the actual size of the mesh according to needs to adapt to different working conditions; the above-mentioned banana vibrating screen can also adjust the angle change between the 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 material on the screen, and then controlling the residence time of the material on the screen.

[0005] However, under normal circumstances, in order to prevent materials from spilling, the feed port of the banana vibrating screen is usually larger than the size of the conveyor belt, which results in most materials piling up in the middle of the vibrating screen during feeding, and less materials on both sides of the vibrating screen, resulting in uneven distribution of materials on the vibrating screen. If the thickness of the material in the middle of the vibrating screen is too thick, the screening efficiency in the middle of the vibrating screen will be lower than the screening efficiency on both sides of the vibrating screen, resulting in the material in the middle of the vibrating screen still not being completely screened when the screening of the materials on both sides of the vibrating screen is completed, thereby affecting the overall screening efficiency of the vibrating screen. The material leveling mechanism of the above patent can only move the material to one of the two sides during feeding, and cannot achieve uniform distribution of the material 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 comprises: a screen box, a vibrator and an adjustment component;

[0008] The vibrator is arranged on the screen box, and the screen box is provided with a feed port;

[0009] 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 tilted at the feed port. 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, and a second channel is formed above the second baffle. The third baffle is tilted at the feed port and is opposite to the tilt direction 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 provided in the middle area of ​​the third baffle. Multiple movable plates are continuously distributed at the V-shaped opening. Each movable plate corresponds to one first control mechanism. The first control mechanism can control the movement of the corresponding movable plate and cover the V-shaped opening.

[0010] Beneficial effect: After the material enters the feed port, 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, and the part of the material 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 in 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 in the middle position of the upper area of ​​the third baffle. The material falling in the lower area of ​​the third baffle continues to move downward along the third baffle under the action of gravity. The material in the lower area is concentrated in the middle position of the third baffle. Therefore, when the material in the lower area of ​​the third baffle passes through the first control mechanism, the movable plate located in the middle position of the third baffle will move upward. When the material in the upper area of ​​the third baffle moves downward along the third baffle under the action of its gravity, it will be blocked by the movable plate in 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 screen box under the action of gravity. The material in the lower area of ​​the third baffle will fall in the middle position of the screen box under the action of gravity, and the material falling from the V-shaped opening will fall on both sides of the screen box, thereby achieving uniform distribution of the material on the screen box.

[0011] 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 engaged with 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 engaged 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 thereof is connected to the third baffle.

[0012] 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, and the first connecting rod pushes the movement of the first rotating rod to rotate downward. Under the seesaw principle, the other end of the first rotating rod will rotate upward, and overcome the elastic force of the first elastic member to push the movable plate to move upward. 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, and the first rotating rod pushes the movable plate to reset through the first connecting rod. The gravity of the material is used to drive the first rotating rod to rotate, thereby driving the movable plate to rotate. No additional power source is required, saving energy.

[0013] 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.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] By adopting the above technical solution, the beneficial effects of the present invention are:

[0026] The banana vibrating screen of the present invention can input materials through the feed port, and the materials can fall on the first baffle after entering the feed port. 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 move obliquely downward along the first baffle under the action of gravity and fall in the middle position of the lower area of ​​the third baffle. The materials in the second channel move obliquely downward along the second baffle under the action of gravity and fall in the middle position of the upper area of ​​the third baffle. The materials falling in the lower area of ​​the third baffle continue to move obliquely 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, the materials in the lower area of ​​the third baffle will cause the movable plate located in the middle position of the third baffle to move upward when passing through the first control mechanism. When the materials in the upper area of ​​the third baffle move downward along the third baffle under the action of its gravity, they will be blocked by the movable plate in 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 screen box under the action of gravity. The materials in the lower area of ​​the third baffle will fall in the middle position of the screen box under the action of gravity, and the materials falling from the V-shaped opening will fall on both sides of the screen box, thereby achieving uniform distribution of the materials on the screen box. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the banana vibrating screen structure according to an embodiment of the present invention.

[0028] Figure 2 It is a schematic structural diagram of the banana vibrating screen adjustment assembly according to an embodiment of the present invention.

[0029] Figure 3 Schematic diagram of the cooperation between the first baffle and the second baffle according to an embodiment of the present invention.

[0030] Figure 4 yes Figure 3 Bottom view of .

[0031] Figure 5 yes Figure 3 sectional view of .

[0032] Figure 6 2 is a schematic diagram of the structure of the rotating block according to an embodiment of the present invention.

[0033] Figure 7 4 is a top view of the third baffle according to an embodiment of the present invention.

[0034] Figure 8 4 is a bottom view of the third baffle according to an embodiment of the present invention.

[0035] Figure 9 4 is a side view of the third baffle according to an embodiment of the present invention.

[0036] Figure 10 It is a schematic structural diagram of the first control component of an embodiment of the present invention.

[0037] Reference numerals:

[0038] 100, screen box; 101, partition plate; 200, vibrator;

[0039] 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 matching groove; 532. Second matching groove; 54. First mounting seat; 55. First elastic member; 61. Rotating block; 62. Second connecting rod; 621. Third matching shaft; 63. Second rotating rod; 64. Second mounting seat; 65. Fixed shaft; 66. Second elastic member; 7. Fourth baffle; 71. Fourth matching groove. DETAILED DESCRIPTION

[0040] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0041] like Figures 1 to 10 As shown, the banana vibrating screen of the present invention includes: a screen box 100, an exciter 200 and an adjustment component. The screen box 100 is used to screen the material, the exciter 200 is used to drive the screen box 100 to vibrate, and the adjustment component is used to make the material enter the screen box 100 evenly.

[0042] Specifically, if Figure 1 As shown, the screen box 100 is a screen box of a banana vibrating screen in conventional technology. The screen box 100 is a banana-shaped structure. The screen box 100 is placed at an angle, and an external material receiving box can be set below it. A partition plate 101 is fixedly installed in the screen box 100. A feed inlet is formed between the partition plate 101 and the front side wall of the screen box 100, and the bottom end of the screen box 100 is its discharge port. A plurality of fixed seats are provided in the screen box 100, each fixed seat is fixedly connected to the screen box 100, and an obtuse angle is formed between adjacent fixed seats. The plurality of fixed seats can form an arc structure in the screen box 100, and a screen can be detachably installed on each fixed seat. The screen at the bottom end of the screen box 100 is arranged horizontally, and the closer the feed inlet of the screen box 100 is opened, the larger the angle between the screen and the horizontal plane.

[0043] The screen box 100 is provided with support frames on both sides, and the support frames are supported on the ground. The vibrator 200 is fixedly arranged on the support frames. The vibrator 200 is a vibrator in conventional technology. The vibrator 200 includes a driving motor, a rotating shaft, an eccentric block and a matching seat. The driving motor is fixedly arranged on the support frame, and the matching seat is fixedly arranged on the side wall of the screen box 100. The rotating shaft is rotatably matched on the screen box 100, and its two ends respectively pass through the side walls of the screen box 100 and extend outward. A belt is provided between the output end of the driving motor and the end of the rotating shaft. The driving motor drives the rotating shaft to rotate through the belt. The eccentric block is fixedly connected to the rotating shaft. The rotation of the rotating shaft can drive the eccentric block to rotate around the rotating shaft. The eccentric block is slidably matched in the matching seat. When the eccentric block rotates to above the rotating shaft, it will push the screen box 100 to move upward through the matching seat. When the eccentric block rotates to below the rotating shaft, the screen box 100 will move downward under the action of its own gravity, thereby enabling the screen box 100 to vibrate up and down. The screen box 100 is connected to the external material receiving box via a vibration absorber. The vibration absorber is a spring and is used to prevent the external material receiving box and the screen box 100 from vibrating synchronously.

[0044] like Figures 1 to 6As shown, the adjustment 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 in the feed port and is tilted. The top of the first baffle 1 is its front end. The front end of the first baffle 1 is fixedly connected to the front side wall of the screen box 100, and the rear end of the first baffle 1 is tilted downward. The second baffle 2 is spaced apart and parallel to 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 provided on both sides of the second baffle 2. The extension plates 21 are perpendicular to the second baffle 2. The extension plates 21 can pass through the first baffle 1 and extend tilted downward. The extension plates 21 slide in cooperation 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 block 61, a second connecting rod 62, and a second connecting rod 63. The rod 63, the fixed shaft 65 and the second elastic member 66, the two rotating blocks 61 are all rotatably fitted on the first baffle 1, and 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, and the rotating block 61 can rotate relative to the first baffle 1 around the connection between it and the first baffle 1. Two avoidance grooves are provided on the first baffle 1, and each avoidance groove corresponds to a rotating block 61. The rotating block 61 can slide in the avoidance groove when rotating downward, thereby preventing the first baffle 1 from hindering the rotation of the rotating block 61. The top of the second connecting rod 62 is fixedly connected to the bottom surface of the rotating block 61, and a second mounting seat 64 is fixedly provided on the bottom surface of the first baffle 1, and a rotating shaft is fixedly provided at the bottom end of the second mounting seat 64. The middle area of ​​the second rotating rod 63 is rotatably connected to the second mounting seat 64 through the rotating shaft. The rear end of the second rotating rod 63 is provided with a third matching groove, and the bottom end of the second connecting rod 62 is provided with a third matching shaft 621. The third matching shaft 621 slides in the third matching groove. The fixed shaft 65 is located below the first baffle 1, and the two ends of the fixed shaft 65 are fixedly connected to the two extension plates 21 respectively. 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 which is fixedly connected to the fixed shaft 65, and the other end of which is fixedly connected to the first baffle 1. The front end top of the second rotating rod 63 is stopped at the bottom end of the fixed shaft 65.

[0045] When the rotating block 61 rotates downward, the second connecting rod 62 rotates downward synchronously with the rotating block 61. During the rotation process, the second connecting rod 62 applies a downward thrust to the rear end of the second rotating rod 63, thereby pushing the rear end of the second rotating rod 63 to rotate downward, so that the second rotating rod 63 rotates around the connection between it and the second mounting seat 64, and then 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, so that the fixed shaft 65 overcomes the elastic force of the second elastic member 66 and moves upward, and the extension plate 21 and the second baffle 2 move synchronously with the fixed shaft 65, so that the second baffle 2 can move away from the first baffle 1, and the distance between the second baffle 2 and the first baffle 1 increases.

[0046] like Figure 2 、 Figures 7 to 10 As shown, the third baffle 3 is located in the feed port, the height of the third baffle 3 is lower than the height of the first baffle 1, the third baffle 3 is tilted, and its tilting direction is opposite to the tilting direction of the first baffle 1, the top of the third baffle 3 is its rear end, the rear end of the third baffle 3 is fixedly connected to the partition plate 101, the front end of the third baffle 3 is tilted downward, and a V-shaped opening 31 is provided on the third baffle 3, 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 fit with the front side wall of the V-shaped opening 31, each movable plate 4 is slidably matched with the third baffle 3, and a plurality of first control components are provided on the third baffle 3, 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 The top of the front end of the third baffle 3 is provided with a limiting groove, and the rotating plate 51 is rotatably matched in the limiting groove. The bottom surface of the rotating plate 51 can stop against the bottom surface of the limiting groove. The limiting groove can limit the rotation range of the rotating plate 51. When the rotating plate 51 is rotated downward to the limit, its bottom surface stops 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. The bottom end of the first connecting rod 52 is fixedly provided with a first matching shaft. The third baffle 3 A first mounting seat 54 is fixedly provided at the bottom end, a rotating shaft is fixedly provided at the bottom end of the first mounting seat 54, a middle area of ​​the first rotating rod 53 is rotatably connected to the first mounting seat 54 through the rotating shaft, a first matching groove 531 is provided at the front end of the first rotating rod 53, and the first matching shaft slides in the first matching groove 531, a second matching shaft is fixedly provided at the bottom end of the movable plate 4, a second matching groove 532 is provided at the rear end of the first rotating rod 53, and the second matching shaft slides in the second matching groove 532.

[0047] In the initial state, there is an 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, the first connecting rod 52 applies a downward thrust to the front end of the first rotating rod 53, thereby pushing the front end of the first rotating rod 53 to rotate downward, so that the first rotating rod 53 rotates around the connection between it and the first mounting seat 54, and then the rear end of the first rotating rod 53 rotates upward. When the rear end of the first rotating rod 53 rotates upward, it applies an upward thrust to the movable plate 4, so that the movable plate 4 overcomes the elastic force of the first elastic member 55 and moves upward.

[0048] like Figure 2 、 Figure 3 and Figure 7 As shown, a fourth baffle 7 is further provided below the second baffle 2. The fourth baffle 7 is a V-shaped structure and has the same shape as the V-shaped opening 31. The fourth baffle 7 is vertically 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 matching groove 71 is provided at the top of the fourth baffle 7, and a slider is provided at the bottom end of the second baffle 2. The slider slides in the fourth matching groove 71. A guide groove is provided on the side wall of the screen box 100. The fourth baffle 7 can extend into the guide groove and slide 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, thereby causing the fourth baffle 7 to move along the guide groove, so that the fourth baffle 7 can approach or move away from the third baffle 3.

[0049] The implementation principle of the banana vibrating screen of 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 of the screen while ensuring the screening capacity. After the material is poured into the screen 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 down 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 make the excess material be above the second baffle 2 and slide down along the second baffle 2. The material moves along the first channel and detaches from the first baffle 1 from the rear end of the first channel. The material falls downward under the action of gravity and falls on the front end of the third baffle 3. The excess material slides obliquely downward along the second baffle 2. When this part of the material detaches from the second baffle 2, it will fall at the rear end of the third baffle 3 under the action of gravity.

[0050] When the material falls on the front end of the baffle plate 3, it will slide down along the third baffle plate 3. When the material slides to the bottom end of the third baffle plate 3, the material will pass through the movable plate 4 on its moving path. The gravity of the material itself will push the rotating plate 51 to rotate downward, and the first connecting rod 52 will move downward synchronously with the rotating plate 51. In the process of downward rotation, the first connecting rod 52 will apply a downward thrust to the front end of the first rotating rod 53, thereby pushing the front end of the first rotating rod 53 to rotate downward, so that the first rotating rod 53 rotates around the connection between it and the first mounting seat 54, thereby 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 apply an upward thrust to the movable plate 4, so that the movable plate 4 overcomes the elastic force of the first elastic member 55 and moves upward. The movable plate 4 moves upward until it stops at the fourth baffle plate 7, thereby closing the gap between the fourth baffle plate 7 and the third baffle plate 3, preventing the material falling on the rear end of the third baffle plate 3 from entering the V-shaped opening 31 from this area. The material at the front end of the plate 3 is concentrated in the middle area of ​​the third baffle 3, so the movable plate 4 located in the middle area of ​​the V-shaped opening 31 moves upward, and the material falling on the rear end of the third baffle 3 moves obliquely downward along the third baffle 3. The movable plate 4 in the middle area of ​​the third baffle 3 prevents the material from entering the V-shaped opening 31 from the middle area of ​​the third baffle 3. The material can only slide along the movable plate 4 to the two sides of the third baffle 3 and enter the V-shaped opening 31 from the two sides of the third baffle 3. If there is more material at the rear end of the third baffle 3, so that the thickness of the material at the rear end of the third baffle 3 is greater than the gap between the fourth baffle 7 and the third baffle 3, the material will continue to move along the fourth baffle 7 to the two sides of the third baffle 3, ensuring that the thickness of the material entering the V-shaped opening 31 at the same time is within a certain range. After entering the V-shaped opening 31, the material falls downward under the action of gravity and falls on both sides of the screen. The material falling downward from the front end of the third baffle 3 falls in the middle area of ​​the screen, thereby achieving uniform distribution of the material on the screen.

[0051] Some materials need to be screened multiple times. When the materials are initially screened, it is only necessary to ensure the screening speed of the materials, and there is no need to finely screen the materials. Therefore, excessive materials are often input into the feed port. When the amount of materials entering the feed port is too much, 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, and the second connecting rod 62 will rotate downward synchronously with the rotating block 61. During the rotation process, the second connecting rod 62 applies a downward thrust to the rear end of the second rotating rod 63, thereby pushing the second rotating rod The rear end of 63 rotates downward, causing the second rotating rod 63 to rotate around the connection between it and the second mounting seat 64, thereby causing the front end of the second rotating rod 63 to rotate upward, and the second rotating rod 63 applies an upward thrust to the fixed shaft 65, so that the fixed shaft 65 overcomes the elastic force of the second elastic member 66 and moves upward, and the extension plate 21 and the second baffle 2 move synchronously with the fixed shaft 65, so that the second baffle 2 can move upward at an angle and away from the first baffle 1, and the distance between the second baffle 2 and the first baffle 1 is increased, which facilitates the passage of materials through the first channel and prevents material blockage.

[0052] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A banana vibrating screen, comprising: Screen boxes, vibrators and conditioning components; The vibrator is installed on the screen box, and the screen box is provided with a feed port; The feature of the present invention is that the adjustment component 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 tilted 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, and a second channel is formed above the second baffle, the third baffle is tilted at the feed inlet, and the tilt direction is 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, the middle area of ​​the third baffle is provided with a V-shaped opening, a plurality of movable plates are continuously distributed at the V-shaped opening, each movable plate corresponds to a first control mechanism, and the first control mechanism can move the corresponding movable plate and cover the V-shaped opening; 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 engaged with the bottom end of the third baffle. The first connecting rod is provided 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 rotatably engaged with the first connecting rod and the movable plate respectively. One end of the first elastic member is connected to the movable plate, and the other end thereof is connected to the third baffle. The first rotating rod is provided with a first matching groove and a second matching groove at both ends respectively, the first connecting rod is provided with a first matching shaft, and the movable plate is provided with a second matching shaft, the first matching shaft is slidably fitted in the first matching groove, and the second matching shaft is slidably fitted in the second matching groove; 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 stop against the rotating plate, and the limiting groove is used to limit the rotation range of the rotating plate.

2. The banana vibrating screen according to claim 1, characterized in that: 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 a gap is provided between the fourth baffle and the third baffle.

3. The banana vibrating screen according to claim 2, characterized in that: 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.

4. The banana vibrating screen according to claim 1, characterized in that: 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.

5. The banana vibrating screen according to claim 4, characterized in that: The second rotating rod is provided with a third matching groove, and the second connecting rod is provided with a third matching shaft. The third matching shaft is slidably fitted in the third matching groove.

6. The banana vibrating screen according to claim 2, characterized in that: A fourth matching groove is provided on the fourth baffle, and a slider is provided at the bottom end of the second baffle. The slider is slidably fitted in the fourth matching groove.

7. The banana vibrating screen according to claim 6, characterized in that: A guide groove is provided on the side wall of the screen box, and the fourth baffle is slidably fitted in the guide groove.

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