Multi-section type banana vibrating screen and screening method
Through the material distribution and feeding components of the multi-stage banana vibrating screen, the problem of uneven material distribution in traditional screening equipment is solved, uniform material placement and equal thickness screening are achieved, and screening efficiency and quality are improved.
Patent Information
- Application Number
- CN202510889657.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-30
- Publication Date
- 2025-08-26
AI Technical Summary
A large amount of materials in traditional screening equipment is used to cause uneven distribution of the screen surface and local material accumulation, which affects the screening efficiency and accuracy, and cannot fully utilize the screen area.
The multi-stage banana vibrating screen design is adopted, combining the material separation assembly and the feeding assembly, the material is placed in batches through the material separation assembly, and the material is evenly distributed on the screen through the feeding assembly, and the multi-angle inclination design of the screen is used to achieve equal-thick screening.
The uniform distribution of materials on the screen is achieved, local accumulation is avoided, screening efficiency and accuracy are improved, screening area is fully utilized, and screening quality is improved.
Smart Images
Figure CN120532733A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of vibrating screens, and in particular relates to a multi-stage banana vibrating screen and a screening method. Background Art
[0002] The multi-segment banana vibrating screen is a mechanical equipment used for material screening operations. It combines the multi-segment screening principle with the banana-shaped screen surface design concept, and has efficient and accurate screening capabilities.
[0003] The screen surface of the multi-section banana vibrating screen adopts a multi-angle inclination design, and the screen surface inclination decreases from the feed section to the discharge end. The overall shape is similar to a banana, hence the name "banana vibrating screen". This special design allows the material to obtain different throwing intensities and movement speeds (decreasing in sequence) on each section of the screen surface under the same vibration intensity, thereby making the thickness of the material layer on the screen surface remain unchanged or decrease from the feed end to the discharge end, achieving equal thickness screening.
[0004] In traditional screening equipment, a large amount of material is put in at one time, resulting in uneven distribution of material on the screen surface, excessive accumulation of local material, and inability of some material to fully contact the screen, which affects the screening effect and reduces the screening efficiency and accuracy. In addition, the flow and dispersion of material on the screen are not smooth, and the screening area of the screen cannot be fully utilized, resulting in low screening efficiency and poor screening quality.
[0005] To this end, the present invention provides a multi-stage banana vibrating screen and a screening method. Summary of the Invention
[0006] In order to make up for the deficiencies of the prior art: solve at least one technical problem raised in the background technology.
[0007] The technical solution adopted by the present invention to solve its technical problems is: a multi-section banana vibrating screen described in the present invention includes a support column, two main frame plates are arranged above the support column, the sides of the main frame plates are fixedly connected with shock-absorbing mechanisms, the shock-absorbing mechanisms are fixedly connected to the top of the support column, screen one and screen two are fixedly connected between the two main frame plates, screen one is located above screen two and the screen surface adopts a multi-angle inclination design, the sieve hole diameter on the surface of screen one is larger than the sieve hole diameter on the surface of screen two, an exciter is fixedly installed between the two main frame plates, a material dividing assembly for continuously discharging materials in batches is arranged above the top of the main frame plate, and a feeding assembly for feeding materials from different positions above screen one is arranged below the material dividing assembly.
[0008] Preferably, the material distribution component includes a processing box, which is fixedly installed above the main frame plate. A lower material bin is fixedly connected to the top of the processing box. The inner wall of the processing box is rotatably connected to a drive shaft. The outer wall of the drive shaft is evenly and fixedly connected to four material distribution bins. The side of the processing box is fixedly connected to a motor. The output shaft of the motor is fixedly connected to one end of the drive shaft. A material distribution component for delivering materials into each material distribution bin is provided below the lower material bin.
[0009] Preferably, the unloading component includes an articulated seat 2, the inner wall of which is hinged with an opening and closing plate, the surface of the opening and closing plate is adapted to the bottom opening of the unloading bin, one side of the opening and closing plate is fixedly connected to a torsion spring, one end of the torsion spring away from the closing plate is fixedly connected to one side of the articulated seat 2, the outer wall of the shaft of the articulated seat 2 is fixedly connected to gear 2, and one side of the distribution bin is provided with a transmission component for driving gear 2 to rotate.
[0010] Preferably, the transmission assembly includes a circular groove guide rail, the outer wall of the circular groove guide rail is fixedly mounted on the inner wall of the processing box, and each material distribution bin is fixedly connected to an arc-shaped slider on one side, and the arc-shaped sliders are rotatably connected to the inner wall of the circular groove guide rail, and one end of the arc-shaped slider is fixedly connected to a bent arc-shaped rod, and one end of the bent arc-shaped rod is fixedly connected to a rack group three, and the teeth of the rack group three can engage with the teeth of gear two.
[0011] Preferably, the delivery assembly includes two hinged platforms, the inner walls of the two hinged platforms are hinged with guide plates, the two guide plates are in a parallel state, and the outer wall of the drive shaft is provided with a linkage assembly that drives the shaft rod of the hinged platform to rotate repeatedly.
[0012] Preferably, a protective plate is symmetrically fixedly connected to the upper surface of one of the material guide plates, a gathering plate is symmetrically fixedly connected to the inner wall of the processing box, an arc-shaped baffle is fixedly connected to one side of one of the gathering plates, and the outer side of the arc-shaped baffle is in contact with the outer side of one of the material distribution bins.
[0013] Preferably, the linkage assembly includes gear 1, which is fixedly connected to one end of the shaft of one of the articulated platforms, the outer wall of the drive shaft is fixedly connected to an inner ring rod, the outer side of the inner ring rod is fixedly connected to two sets of rack groups 1, the two sets of rack groups 1 form a 90-degree angle between them, and the number of teeth of rack group 1 is one-sixth of the number of teeth of gear 1, and one end of the shaft of the two articulated platforms is fixedly connected to a transmission mechanism.
[0014] Preferably, the linkage assembly also includes an outer ring rod, which is symmetrical to the inner ring rod. Two sets of rack groups 2 are fixedly connected to the inner side of the outer ring rod. The two sets of rack groups 2 form a 90-degree angle between them, and the number of teeth in rack group 2 is one-sixth of the number of teeth in gear 1.
[0015] A screening method of a multi-stage banana vibrating screen: S1. Material delivery preparation: Pour all materials into the lower hopper, and seal the bottom of the hopper with an opening and closing plate; S2. Material receiving in the sub-bin: The motor drives the drive shaft to rotate the sub-bin. When a sub-bin rotates to the top, the transmission assembly drives the opening and closing plate to rotate, and the material falls into the sub-bin; S3. The sub-bin completes receiving the materials and rotates: When the sub-bin rotates to the left, the opening and closing plate returns to its original position under the action of the torsion spring, sealing the bottom of the sub-bin. S4. Material is fed into the feeding assembly: the drive shaft rotates again, the opening of the distribution bin faces downward, and the material falls onto the feed plate; S5. Feeding assembly feeds materials evenly: every time the driving shaft rotates 90 degrees, a feeding bin filled with materials turns to open downwards, and the linkage assembly drives the guide plate to rotate, so that the materials are sequentially fed into the middle, left, middle and upper right part of the screen to achieve even feeding; S6. Material screening: The material flows along the screen one under the action of the vibrator, and the material passing through the screen one falls to the screen two to continue flowing and screening. The shock-absorbing mechanism ensures the stability of the screen body, and the screen surface has a continuous multi-angle design to achieve equal thickness screening, thereby improving screening efficiency and quality.
[0016] A screening method for a multi-stage banana vibrating screen, wherein the feeding assembly comprises the following steps: X1. In the initial state, the two guide plates are tilted to form a 30-degree angle with the bottom of the processing box, and the discharge port is aligned with the upper right side of the screen; X2. Every time the drive shaft rotates 90 degrees, a sub-bin filled with materials will turn to open downwards. During this process, the linkage assembly drives the feed plate to rotate 60 degrees. After the first rotation, the discharge port is aligned with the upper middle part of the screen to feed the material. X3, the driving shaft rotates again, the guide plate rotates another 60 degrees, and the discharge port is aligned with the upper left side of the screen to feed the material; X4. The driving shaft rotates 90 degrees for the third time, the feed plate rotates 60 degrees in the opposite direction, and the discharge port is aligned with the upper middle part of the screen to feed the material; X5. The driving shaft finally rotates 90 degrees, and the linkage assembly causes the feed plate to rotate 60 degrees in the opposite direction again. The discharge port returns to the upper right side of the screen to feed the material, completing a complete cycle. The two feed plates return to their initial positions. In this cycle, the driving shaft rotates one circle, and each sub-bin completes a feeding, and the feeding position is different each time.
[0017] The beneficial effects of the present invention are as follows: 1. The multi-stage banana vibrating screen and screening method described in the present invention accurately divides a large amount of material into several batches, realizes batch distribution of the material, avoids material accumulation, and allows the material to flow and disperse more smoothly in the subsequent screening process. Local accumulation will not cause some material to be unable to fully contact the screen, thereby ensuring the screening effect and improving the accuracy and reliability of the screening.
[0018] 2. The multi-stage banana vibrating screen and screening method described in the present invention, the feeding component is responsible for receiving the material processed by the dividing component, and continuously feeding each batch of material to different positions above the top of the screen. By feeding the material to different positions of the screen, the material can be more evenly distributed on the surface of the screen; the evenly distributed material can make full use of the screening area of the screen, avoid the concentration of material in a certain area, and improve the use efficiency of the screen. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The present invention will be further described below with reference to the accompanying drawings.
[0020] Figure 1 It is an overall stereogram of the present invention; Figure 2 This is a schematic diagram of the external structure of the processing box in the present invention; Figure 3 It is a structural diagram of the motor in the present invention; Figure 4 This is a schematic diagram of the internal structure of the processing box in the present invention; Figure 5 This is a structural diagram of the feed plate in the present invention; Figure 6 It is a structural diagram of the opening and closing plate in the present invention; Figure 7 This is a structural diagram of the material distribution silo in the present invention; Figure 8 This is a structural diagram of the lower silo in the present invention; Figure 9 This is a schematic diagram of the structure of the drive shaft in the present invention; Figure 10 It is a structural schematic diagram of the inner ring rod in the present invention.
[0021] In the figure: 1. Support column; 2. Shock absorption mechanism; 3. Main frame plate; 4. Screen 1; 5. Screen 2; 6. Vibrator; 7. Processing box; 8. Unloading bin; 9. Feeding plate; 10. Articulated table; 11. Protective plate; 12. Drive shaft; 13. Distribution bin; 14. Motor; 15. Arc baffle; 16. Inner ring rod; 17. Rack group 1; 18. Outer ring rod; 19. Rack group 2; 20. Transmission mechanism; 21. Gear 1; 22. Articulated seat 2; 23. Opening and closing plate; 24. Gear 2; 25. Arc slider; 26. Bending arc rod; 27. Rack group 3; 28. Circular groove guide rail; 29. Torsion spring; 30. Gathering plate. DETAILED DESCRIPTION
[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.
[0023] like Figures 1 to 10 As shown, the present invention provides a technical solution: a multi-section banana vibrating screen, comprising a support column 1, two main frame plates 3 are arranged above the support column 1, the sides of the main frame plates 3 are fixedly connected with shock absorbing mechanisms 2, the shock absorbing mechanisms 2 are fixedly connected to the top of the support column 1, and a screen 1 4 and a screen 2 5 are fixedly connected between the two main frame plates 3, the screen 1 4 is located above the screen 2 5 and the screen surface adopts a multi-angle inclination design, the sieve hole diameter on the surface of the screen 1 4 is larger than the sieve hole diameter on the surface of the screen 2 5, an exciter 6 is fixedly installed between the two main frame plates 3, a material dividing assembly for continuously discharging materials in batches is provided above the top of the main frame plate 3, and a feeding assembly for feeding materials from different positions above the screen 1 4 is provided below the material dividing assembly.
[0024] During operation: the material is dropped from the top of the screen 4. When it is dropped onto the surface of the screen 4, the material flows along the surface of the screen 4 under the action of the vibrator 6. The vibrator 6 makes the entire screen surface have a large exciting force, a high throwing acceleration, and a smoother material flow. When the material flows on the surface of the screen 4, the material that can pass through the sieve holes of the screen 4 will pass through the sieve holes of the screen 4 and fall onto the upper surface of the screen 2 5, and continue to flow on the upper surface of the screen 2 5. The material that can pass through the sieve holes of the screen 2 5 will fall out through the sieve holes of the screen 2 5, thereby achieving the material Screening is performed in multiple stages. During the entire screening process, the shock absorbing mechanism 2 provides buffering protection for the vibration screening of the exciter 6. In addition, since the screen surface inclination angles of screen 1 4 and screen 2 5 are designed with continuous multi-angle design, and the inclination angles of the two screen surfaces decrease from the feed end to the discharge end, the material can obtain different throwing intensities and movement speeds on each screen surface at the same vibration intensity. This design allows the thickness of the material layer on the screen surface to remain unchanged or decrease from the feed end to the discharge end, thereby achieving uniform thickness screening and greatly improving screening efficiency and screening quality. When the device is feeding materials, the materials first enter the dividing component, which discharges the overall materials continuously and in batches through precise control, so that the overall materials are divided into several batches, and the volume of the materials in each batch is similar; thereby avoiding the problem of excessive accumulation of local materials on the screen surface caused by a large amount of materials being fed at one time, thereby affecting the screening effect; the materials processed by the dividing component are then conveyed to the feeding component; the feeding component will continuously feed each batch of materials to the left, middle or right side above the top of the screen 4, ensuring that the materials are more evenly distributed on the surface of the screen 4, further improving the screening efficiency and quality; Through the above embodiments, the material dividing component accurately divides a large amount of material into several batches, realizes batch distribution of the material, avoids material accumulation, and the material can flow and disperse more smoothly in the subsequent screening process, and will not cause some materials to be unable to fully contact the screen due to local accumulation, thereby ensuring the screening effect and improving the accuracy and reliability of screening; the feeding component is responsible for receiving the material processed by the material dividing component, and continuously delivering each batch of material to different positions above the top of the screen 4. By delivering the material to different positions of the screen 4, the material can be more evenly distributed on the surface of the screen; the evenly distributed material can make full use of the screening area of the screen, avoid the concentration of material in a certain area, and improve the use efficiency of the screen.
[0025] like Figures 4 to 7 As shown, the material distribution component includes a processing box 7, which is fixedly installed above the main frame plate 3, and a lower material bin 8 is fixedly connected to the upper part of the processing box 7. The inner wall of the processing box 7 is rotatably connected to the drive shaft 12, and the outer wall of the drive shaft 12 is evenly fixedly connected to four sub-material bins 13. The side of the processing box 7 is fixedly connected to a motor 14, and the output shaft of the motor 14 is fixedly connected to one end of the drive shaft 12. A material distribution component for delivering materials to the inside of each sub-material bin 13 is provided below the lower material bin 8.
[0026] During operation: first, all the materials are poured into the lower bin 8 for storage at one time. At this time, the bottom of the lower bin 8 is blocked by the discharge assembly; driven by the motor 14, the drive shaft 12 drives multiple sub-bins 13 to rotate in the same direction; when a sub-bin 13 rotates from the opening toward the right to the top, the discharge assembly at the bottom of the lower bin 8 will gradually release the blockage of the bottom of the lower bin 8, and the opening at the bottom of the lower bin 8 will gradually open, and the material will fall through the bottom of the lower bin 8 into the inner part of the sub-bin 13 with the opening facing upwards; the drive shaft 12 continues to rotate, and the next sub-bin 13 will repeat the above-mentioned discharge operation, and the sub-bin 13 that has received the material will rotate to the left. During this process, the material will not be put into the feeding assembly; when The driving shaft 12 continues to rotate once more, and the opening of the distribution bin 13 faces directly downward. Under the action of gravity, the material falls from the distribution bin 13 into the feeding assembly for further processing. In order to ensure the bearing range of the distribution bin 13 for receiving materials, it is necessary to accurately control the time for the distribution bin 13 to stay at the bottom of the discharge bin 8 each time through the motor 14. After the distribution bin 13 is rotated, the bottom of the discharge bin 8 is automatically blocked by the discharge assembly, thereby realizing the continuous and batch discharge of the overall material, so that the overall material is divided into several batches, and the volume of the material in each batch is similar, avoiding the problem of excessive accumulation of local material on the screen surface due to a large amount of material input at one time, which affects the screening effect, and provides a guarantee for the uniform screening of subsequent materials.
[0027] like Figure 6 and Figure 8 As shown, the unloading assembly includes an articulated seat 22, the inner wall of the articulated seat 22 is hinged with an opening and closing plate 23, the surface of the opening and closing plate 23 is adapted to the bottom opening of the unloading bin 8, and one side of the opening and closing plate 23 is fixedly connected with a torsion spring 29, and one end of the torsion spring 29 away from the closing plate 23 is fixedly connected to one side of the articulated seat 22, and the outer wall of the shaft of the articulated seat 22 is fixedly connected with a gear 24, and one side of the distribution bin 13 is provided with a transmission assembly for driving the gear 24 to rotate.
[0028] During operation: in the initial state, the surface of the opening and closing plate 23 fits with the bottom of the lower material bin 8, which has a blocking effect on the bottom of the lower material bin 8, preventing the material from accidentally leaking out, and ensuring that the material is stably stored in the lower material bin 8; when each sub-bin 13 rotates from the opening toward the right side to the top, it will drive the gear 24 to rotate through the transmission component, and the gear 24 will drive the opening and closing plate 23 to rotate through the shaft of the hinge seat 22; when the opening and closing plate 23 rotates, the gap between it and the bottom opening of the lower material bin 8 will gradually increase, and the bottom of the lower material bin 8 originally blocked by the opening and closing plate 23 will be opened. The opening is then gradually opened, and the material can smoothly fall through the gradually expanding opening into the interior of the distribution bin 13, the opening of which is now facing upwards; as the distribution bin 13 continues to rotate, when the distribution bin 13 completes receiving the material and rotates to the left side, the opening and closing plate 23 will gradually rotate in the opposite direction under the elastic restoring force of the torsion spring 29 and re-fit with the bottom opening of the lower bin 8, thereby sealing the bottom of the lower bin 8 again to prevent the material from continuing to fall; this cycle is repeated, thereby realizing the control of material discharge in batches and in an orderly manner, ensuring that the amount of material entering the distribution bin 13 in each batch is relatively stable and uniform.
[0029] like Figures 6 and 7 As shown, the transmission assembly includes a circular groove guide rail 28, the outer wall of the circular groove guide rail 28 is fixedly mounted on the inner wall of the processing box 7, and each material distribution bin 13 is fixedly connected to one side with an arc-shaped slider 25, and the arc-shaped sliders 25 are rotatably connected to the inner wall of the circular groove guide rail 28, and one end of the arc-shaped slider 25 is fixedly connected to a bent arc-shaped rod 26, and one end of the bent arc-shaped rod 26 is fixedly connected to a rack group three 27, and the teeth of the rack group three 27 can engage with the teeth of the gear two 24.
[0030] During operation: when the motor 14 drives the driving shaft 12 to rotate, thereby driving multiple material distribution bins 13 to rotate in the same direction, the arc-shaped slider 25 fixed on one side of each material distribution bin 13 rotates along the inner wall of the circular groove guide rail 28. As the material distribution bin 13 rotates, when a certain material distribution bin 13 rotates from the opening toward the right side to directly above, the arc-shaped slider 25 corresponding to the material distribution bin 13 also moves to the corresponding position, so that the rack group three 27 on the bent arc-shaped rod 26 fixed at one end of the arc-shaped slider 25 begins to contact and gradually engage with the teeth of gear two 24. Since the rack group three 27 is engaged with gear two 24, driven by the continued rotation of the material distribution bin 13, the rack group three 27 will push gear two 24 to rotate; gear two 24 is fixed to the outer wall of the shaft rod of the hinged seat two 22, so the rotation of gear two 24 will drive the shaft rod of the hinged seat two 22 to rotate, thereby driving the opening and closing plate 23 hinged to the shaft rod to rotate.
[0031] like Figure 5 and Figure 9 As shown, the delivery assembly includes two hinged platforms 10, the inner walls of the two hinged platforms 10 are hinged with guide plates 9, the two guide plates 9 are in a parallel state, and the outer wall of the driving shaft 12 is provided with a linkage assembly that drives the shaft rod of the hinged platform 10 to rotate repeatedly.
[0032] During operation: In the initial state, the two guide plates 9 are tilted and form an angle of 30 degrees with the bottom of the processing box 7, and the discharge port is aligned with the upper right side of the screen 4; every time the drive shaft 12 rotates 90 degrees, a sub-bin 13 filled with materials will turn to open downwards; during this process, the linkage assembly drives the guide plate 9 to rotate 60 degrees: after the first rotation, the discharge port is aligned with the upper middle part of the screen 4 for feeding; the drive shaft 12 rotates another 90 degrees, the guide plate 9 continues to rotate 60 degrees, and the discharge port is aligned with the right side of the screen 4 Feed from above; the driving shaft 12 turns 90 degrees for the third time, the guide plate 9 turns 60 degrees again, and the discharge port is aligned with the upper left side of the screen 4 for feeding; the driving shaft 12 turns 90 degrees for the last time, and the linkage assembly makes the guide plate 9 turn 60 degrees in the opposite direction, and the discharge port returns to the upper right side of the screen 4 for feeding; this cycle continues, the driving shaft 12 rotates one circle, and each sub-bin 13 completes one feeding, and the feeding positions are different, so that the material is evenly fed at different positions of the screen 4, which is beneficial to improving the subsequent screening efficiency and quality.
[0033] like Figures 4 and 5 As shown, a protective plate 11 is symmetrically fixedly connected to the upper surface of one of the guide plates 9, and a gathering plate 30 is symmetrically fixedly connected to the inner wall of the processing box 7. An arc-shaped baffle 15 is fixedly connected to one side of one of the gathering plates 30, and the outer side of the arc-shaped baffle 15 is in contact with the outer side of one of the distribution bins 13.
[0034] During operation: During operation, the protective plate 11 plays a key role. It can effectively prevent the material from leaking from both sides when falling along the surface of the guide plate 9; and the design of the gathering plate 30 ensures that the material falling from the inside of the distribution bin 13 can accurately enter the discharge port formed by the two guide plates 9; in addition, the existence of the arc baffle 15 is also crucial. It can prevent the distribution bin 13 from releasing materials in advance, thereby ensuring the smoothness and efficiency of the entire material handling process.
[0035] like Figures 9 and 10 As shown, the linkage assembly includes a gear 21, which is fixedly connected to one end of the shaft of one of the articulated platforms 10. The outer wall of the drive shaft 12 is fixedly connected to the inner ring rod 16, and the outer side of the inner ring rod 16 is fixedly connected to two sets of rack groups 17. The two sets of rack groups 17 form a 90-degree angle, and the number of teeth of the rack group 17 is one-sixth of the number of teeth of the gear 21. One end of the shaft of the two articulated platforms 10 is fixedly connected to the transmission mechanism 20.
[0036] During operation: when the driving shaft 12 rotates half a circle first, it will drive the rack group 17 on the outside of the inner ring rod 16 to perform periodic motion; in this process, the two groups of rack groups 17 will respectively engage with the gear 21 twice continuously. Since the number of teeth of the rack group 17 is one-sixth of the number of teeth of the gear 21, the gear 21 will be rotated 60 degrees twice in the same direction, thereby driving one of the feed guide plates 9 to rotate 60 degrees twice. The feed guide plate 9 uses the transmission mechanism 20 to make the other 9 rotate synchronously with it; in this way, the discharge ports of the two feed guide plates 9 first feed the material toward the upper middle part of the main frame plate 3, and then feed the material toward the upper left side of the main frame plate 3.
[0037] like Figures 9 and 10 As shown, the linkage assembly also includes an outer ring rod 18, which is symmetrical to the inner ring rod 16. Two sets of rack groups 19 are fixedly connected to the inner side of the outer ring rod 18. The two sets of rack groups 19 form a 90-degree angle, and the number of teeth in the rack group 19 is one-sixth of the number of teeth in the gear 1 21.
[0038] During operation: when the drive shaft 12 continues to rotate, it will drive the rack group 2 19 on the inner side of the outer ring rod 18 to perform periodic motion; in this process, the two groups of rack groups 2 19 will respectively engage with the gear 1 21 twice continuously, so that the gear 1 21 continues to rotate in the opposite direction by 60 degrees twice, which is opposite to the rotation direction of the first half circle, to achieve a complete cycle action, and then drive the two feed guide plates 9 to rotate in the opposite direction by 60 degrees twice; in this way, the discharge ports of the two feed guide plates 9 first rotate from the previous upper left position toward the main frame plate 3, and then rotate to the upper middle part of the main frame plate 3 to feed, and then rotate to the initial position to feed, completing a complete feeding position cycle change process.
[0039] A screening method of a multi-stage banana vibrating screen: S1. Material delivery preparation: Pour all materials into the lower hopper 8, and the bottom of the lower hopper 8 is blocked by the opening and closing plate 23; S2. Material receiving in the sub-bin: The motor 14 drives the drive shaft 12 to rotate the sub-bin 13. When a sub-bin 13 rotates to the top, the transmission assembly drives the opening and closing plate 23 to rotate, and the material falls into the sub-bin 13; S3, the sub-bin completes receiving the material and rotates: when the sub-bin 13 rotates to the left, the opening and closing plate 23 is reset under the action of the torsion spring 29, blocking the bottom of the lower bin 8; S4. Material is fed into the feeding assembly: the drive shaft 12 rotates once more, the opening of the sub-bin 13 faces downward, and the material falls onto the guide plate 9; S5. Feeding assembly feeds materials evenly: every time the driving shaft 12 rotates 90 degrees, a sub-bin 13 filled with materials turns to open downward, and the linkage assembly drives the guide plate 9 to rotate, so that the materials are sequentially fed into the middle, left, middle and upper right side of the screen 4 to achieve uniform feeding; S6. Material screening: The material flows along the screen 1 4 under the action of the vibrator 6. The material passing through the screen 1 4 falls onto the screen 2 5 and continues to flow and screen. The shock-absorbing mechanism 2 ensures the stability of the screen body. The screen surface has a continuous multi-angle design to achieve equal thickness screening, thereby improving screening efficiency and quality.
[0040] A screening method for a multi-stage banana vibrating screen, wherein the feeding assembly comprises the following steps: X1. In the initial state, the two guide plates 9 are tilted to form a 30-degree angle with the bottom of the processing box 7, and the discharge port is aligned with the upper right side of the screen 4; X2. Every time the drive shaft 12 rotates 90 degrees, a sub-bin 13 filled with materials will turn to open downwards; during this process, the linkage assembly drives the guide plate 9 to rotate 60 degrees. After the first rotation, the discharge port is aligned with the upper middle part of the screen 4 for feeding; X3, the driving shaft 12 rotates another 90 degrees, the guide plate 9 continues to rotate 60 degrees, and the discharge port is aligned with the upper left side of the screen 4 to feed the material; X4, the driving shaft 12 rotates 90 degrees for the third time, the guide plate 9 rotates 60 degrees in the opposite direction, and the discharge port is aligned with the upper middle part of the screen 4 for feeding; X5. The driving shaft 12 finally rotates 90 degrees, and the linkage assembly causes the feed plate 9 to rotate 60 degrees in the opposite direction again. The discharge port returns to the upper right side of the screen 4 to feed the material, completing a complete cycle. The two feed plates 9 return to their initial positions. In this cycle, the driving shaft 12 rotates one circle, and each sub-bin 13 completes one feeding, and the feeding position is different each time.
[0041] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. A multi-stage banana vibrating screen, comprising support columns, characterized in that: Two main frame plates are arranged above the support column, and the sides of the main frame plates are fixedly connected with shock-absorbing mechanisms, and the shock-absorbing mechanisms are fixedly connected to the top of the support column. Screen 1 and Screen 2 are fixedly connected between the two main frame plates. Screen 1 is located above Screen 2 and the screen surface adopts a multi-angle inclination design. The sieve hole diameter on the surface of Screen 1 is larger than the sieve hole diameter on the surface of Screen 2. An exciter is fixedly installed between the two main frame plates, and a dividing assembly for continuously discharging materials in batches is arranged above the top of the main frame plate, and a feeding assembly for feeding materials from different positions above Screen 1 is arranged below the dividing assembly.
2. The multi-stage banana vibrating screen according to claim 1, characterized in that: The material distribution component includes a processing box, which is fixedly installed above the main frame plate. A lower material bin is fixedly connected to the top of the processing box. The inner wall of the processing box is rotatably connected to a drive shaft. The outer wall of the drive shaft is evenly and fixedly connected to four material distribution bins. A motor is fixedly connected to the side of the processing box. The output shaft of the motor is fixedly connected to one end of the drive shaft. A material distribution component for delivering materials into each material distribution bin is provided below the lower material bin.
3. The multi-stage banana vibrating screen according to claim 2, characterized in that: The unloading component includes an articulated seat 2, the inner wall of which is hinged with an opening and closing plate, the surface of the opening and closing plate is adapted to the bottom opening of the unloading bin, one side of the opening and closing plate is fixedly connected to a torsion spring, one end of the torsion spring away from the closing plate is fixedly connected to one side of the articulated seat 2, the outer wall of the shaft of the articulated seat 2 is fixedly connected to gear 2, and one side of the distribution bin is provided with a transmission component for driving gear 2 to rotate.
4. The multi-stage banana vibrating screen according to claim 3, characterized in that: The transmission assembly includes a circular groove guide rail, the outer wall of the circular groove guide rail is fixedly installed on the inner wall of the processing box, and each material distribution bin is fixedly connected to an arc-shaped slider on one side, and the arc-shaped sliders are rotatably connected to the inner wall of the circular groove guide rail. One end of the arc-shaped slider is fixedly connected to a bent arc rod, and one end of the bent arc rod is fixedly connected to a rack group three, and the teeth of the rack group three can engage with the teeth of gear two.
5. The multi-stage banana vibrating screen according to claim 4, characterized in that: The delivery component includes two hinged platforms, the inner walls of the two hinged platforms are hinged with guide plates, the two guide plates are in a parallel state, and the outer wall of the driving shaft is provided with a linkage component that drives the shaft rod of the hinged platform to rotate repeatedly.
6. The multi-stage banana vibrating screen according to claim 5, characterized in that: A protective plate is symmetrically fixedly connected to the upper surface of one of the material guide plates, and a gathering plate is symmetrically fixedly connected to the inner wall of the processing box. An arc-shaped baffle is fixedly connected to one side of one of the gathering plates, and the outer side of the arc-shaped baffle is in contact with the outer side of one of the material distribution bins.
7. The multi-stage banana vibrating screen according to claim 6, characterized in that: The linkage assembly includes gear 1, which is fixedly connected to one end of the shaft of one of the articulated platforms. The outer wall of the drive shaft is fixedly connected to an inner ring rod, and the outer side of the inner ring rod is fixedly connected to two sets of rack groups 1. The two sets of rack groups 1 form a 90-degree angle, and the number of teeth of rack group 1 is one-sixth of the number of teeth of gear 1. One end of the shaft of the two articulated platforms is fixedly connected to a transmission mechanism.
8. The multi-stage banana vibrating screen according to claim 7, characterized in that: The linkage assembly also includes an outer ring rod, which is symmetrical to the inner ring rod. Two sets of rack groups 2 are fixedly connected to the inner side of the outer ring rod. There is a 90-degree angle between the two sets of rack groups 2, and the number of teeth in rack group 2 is one-sixth of the number of teeth in gear 1.
9. A method for screening bananas using a multi-segment vibrating screen, the method using a multi-segment vibrating screen as claimed in claims 1 to 8, characterized in that: S1. Material delivery preparation: Pour all materials into the lower hopper, and seal the bottom of the hopper with an opening and closing plate; S2. Material receiving in the sub-bin: The motor drives the drive shaft to rotate the sub-bin. When a sub-bin rotates to the top, the transmission assembly drives the opening and closing plate to rotate, and the material falls into the sub-bin; S3. The sub-bin completes receiving the materials and rotates: When the sub-bin rotates to the left, the opening and closing plate returns to its original position under the action of the torsion spring, sealing the bottom of the sub-bin. S4. Material is fed into the feeding assembly: the drive shaft rotates again, the opening of the distribution bin faces downward, and the material falls onto the feed plate; S5. Feeding assembly feeds materials evenly: every time the driving shaft rotates 90 degrees, a feeding bin filled with materials turns to open downwards, and the linkage assembly drives the guide plate to rotate, so that the materials are sequentially fed into the middle, left, middle and upper right part of the screen to achieve even feeding; S6. Material screening: The material flows along the screen one under the action of the vibrator, and the material passing through the screen one falls to the screen two to continue flowing and screening. The shock-absorbing mechanism ensures the stability of the screen body, and the screen surface has a continuous multi-angle design to achieve equal thickness screening, thereby improving screening efficiency and quality.
10. The screening method of a multi-stage banana vibrating screen according to claim 9, wherein the feeding component comprises the following steps: X1. In the initial state, the two guide plates are tilted to form a 30-degree angle with the bottom of the processing box, and the discharge port is aligned with the upper right side of the screen; X2. Every time the drive shaft rotates 90 degrees, a sub-bin filled with materials will turn to open downwards. During this process, the linkage assembly drives the feed plate to rotate 60 degrees. After the first rotation, the discharge port is aligned with the upper middle part of the screen to feed the material. X3. The drive shaft rotates another 90 degrees, the guide plate rotates another 60 degrees, and the discharge port is aligned with the upper left side of the screen to feed the material; X4. The driving shaft rotates 90 degrees for the third time, the feed plate rotates 60 degrees in the opposite direction, and the discharge port is aligned with the upper middle part of the screen to feed the material; X5. The driving shaft finally rotates 90 degrees, and the linkage assembly causes the feed plate to rotate 60 degrees in the opposite direction again. The discharge port returns to the upper right side of the screen to feed the material, completing a complete cycle. The two feed plates return to their initial positions. In this cycle, the driving shaft rotates one circle, and each sub-bin completes a feeding, and the feeding position is different each time.