Bean vibration screening device capable of automatically adjusting meshes

Abstract

The utility model belongs to the technical field of screening machines, and particularly relates to a bean automatic adjusting mesh vibration screening device which comprises a machine frame, and the machine frame is provided with a mesh vibration screening device body used for sorting beans, a bean split charging groove structure used for containing beans with different particle sizes and a discharging guide groove used for guiding and discharging the beans. According to the soybean screening device, intermittent speed-regulating rotation is integrally carried out among the arranged outer filter cartridge, the inner filter cartridge and the outer cylinder, under the action of centrifugal force of rotation, soybeans are subjected to outward throwing-out acting force, the screening effect is achieved, the soybeans roll in the outer filter cartridge, rapid screening of the soybeans is facilitated, and the screening efficiency is improved. The technical problems proposed in the technical background are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of screening machines, in particular to a bean automatic adjustment mesh oscillation screener. Background Art

[0002] It is often used in the classification of bean products. After the bean products grow and mature, they need to be recovered and then screened to classify the size of the beans.

[0003] Most of the bean screening machines on the market now use a vibrating machine to vibrate the screen and then screen the beans.

[0004] Although this method is fast, the screening effect is very poor due to the light weight of bean products. In addition, if you want to screen out beans of different sizes, you need to replace the sieves with different mesh sizes, and perform reciprocating screening to screen out beans of different sizes. This screening method requires a lot of manual operations, consumes more labor time, and the screening effect is not very good. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a bean automatic adjustment mesh oscillation screener, which has the effect of screening beans through centrifugal force, and the size of the screening mesh is adjustable.

[0006] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: a bean automatic adjustment mesh oscillating screener, comprising a frame, the frame being provided with a mesh oscillating screener for sorting beans, a bean packing trough structure for holding beans of different sizes, and a discharge guide trough for guiding the beans for discharge; the mesh oscillating screener comprising an outer cylindrical barrel connected to the frame by a limited rotation drive; an outer filter barrel and an inner filter barrel being provided in the outer cylindrical barrel; the outer cylindrical barrel, the outer filter barrel and the inner filter barrel being rotated as a whole to generate centrifugal force, thereby facilitating the beans to be screened out;

[0007] The top of the inner filter drum is provided with a feeding pipe, which extends out of the outer cylindrical drum, and when feeding, the material is injected into the outer cylindrical drum, the outer filter drum and the inner filter drum through the feeding pipe, and the inner filter drum is fixedly connected to the inner filter drum and the outer cylindrical drum. A plurality of evenly distributed filter through holes 2 are penetrated on the side wall of the inner filter drum, and the outer filter drum is limited and rotated by the driving sleeve of the outer filter drum, and the outer filter drum and the inner filter drum are fitted with each other. The outer filter drum is penetrated by a plurality of evenly distributed filter through holes 1, and the filter through holes 1 and the filter through holes 2 are arranged to correspond to and overlap with each other. Through the rotation driving device between the outer filter drum and the inner filter drum, the outer filter drum is rotated relative to the inner filter drum, so that the filter through holes 1 and the filter through holes 2 rotate and stagger, so as to change the size of the through holes overlapping with each other between the filter through holes 1 and the filter through holes 2, so as to facilitate the screening of beans of different sizes;

[0008] A gap is provided between the outer filter cylinder and the outer cylindrical cylinder, and a discharge port is provided at the bottom end of the outer cylindrical cylinder. The discharge port is communicated with the outer filter cylinder and the gap between the outer cylindrical cylinder, so that the beans screened out are thrown into the gap between the outer filter cylinder and the outer cylindrical cylinder under the action of centrifugal force and finally fall through the discharge port.

[0009] Optionally, the bean packing bin structure includes a bean packing bin linearly driven and arranged between the frame, and a plurality of bean bins arranged at equal intervals are provided in the bean packing bin, which can move relative to the discharge guide groove. When the mesh oscillating screen for bean sorting screens out beans of different sizes, beans of different sizes fall into different bean bins through the discharge guide groove, thereby realizing the sorting of beans according to size in different bean bins.

[0010] Optionally, the discharge guide trough includes a feed trough located at the bottom end of the discharge port, and limit plates are fixed on both sides of the feed trough. The bottom end of the feed trough extends to the upper end of the bean packaging bin, and the screened beans fall on the feed trough and fall into different bean bins along the inclination direction of the feed trough.

[0011] Optionally, the discharge guide trough also includes a pressure sensor located below the discharge trough for sensing the pressure on the discharge trough. The side position of the frame is fixedly provided with the rotation drive device of the outer cylindrical barrel, the rotation drive device between the outer filter barrel and the inner filter barrel, the pressure sensor and the linear movement drive device between the bean packaging barrel and the relative frame are all electrically connected. The outer cylindrical barrel, the outer filter barrel and the inner filter barrel will stop rotating after rotating for a period of time, and the screened beans will fall on the discharge trough. The discharge trough is subjected to pressure, causing the pressure sensor to bear a greater pressure. When the beans of this size are screened and fall into the bean packaging barrel, After the beans are put up, the discharge chute is no longer subjected to the impact force of the falling beans, and the pressure felt by the pressure sensor is reduced. The pressure sensor transmits the pressure reduction signal to start the transmission drive device between the outer filter cylinder and the inner filter cylinder, thereby driving the outer filter cylinder to rotate relative to the inner filter cylinder, making the aperture difference between the filter hole 1 and the filter hole 2 larger, and at the same time starting the linear movement drive device of the bean packaging drum to move the bean packaging drum on the frame, thereby changing the drums of different beans to the position at the bottom of the discharge guide chute. When screening larger beans next time, the beans with larger diameters can be sorted into another frame.

[0012] Optionally, a threaded cover is provided on the discharge port. After the bean sorting operation is completed, the threaded cover can be loosened and removed to allow the largest beans remaining in the inner filter cartridge to fall out.

[0013] Optionally, the filter through hole 1 and the filter through hole 2 are both set as square through holes, and one of the diagonal directions of the filter through hole 1 and the filter through hole 2 is arranged in the same direction as the axial direction of the inner filter cylinder. During the rotation of the outer filter cylinder relative to the inner filter cylinder, the aperture of the filter through hole 1 and the filter through hole 2 that overlap with each other will change, but the aperture between the filter through hole 1 and the filter through hole 2 is always square, ensuring that the minimum diameter of the through hole that overlaps with each other between the filter through hole 1 and the filter through hole 2 changes, thereby achieving the effect of screening out beans of different sizes.

[0014] In summary, compared with the prior art, the beneficial effects of this solution are:

[0015] 1. The outer filter cylinder, the inner filter cylinder and the outer cylindrical cylinder are intermittently rotated as a whole. Under the action of the centrifugal force of the rotation, the beans are thrown outward, thereby achieving a screening effect and causing the beans to roll in the outer filter cylinder, which is conducive to rapid screening of the beans and solves the technical problems raised in the technical background.

[0016] 2. The output shaft of the worm motor rotates to drive the worm to rotate, and the worm and the meshing teeth engage with each other. The rotation of the worm drives the outer filter cartridge and the inner filter cartridge to rotate relative to each other, thereby adjusting and changing the size of the overlapping through-holes between the first filter hole and the second filter hole, thereby adjusting and screening out beans of different sizes, and achieving the effect of screening out beans of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 This is a structural diagram of the mesh oscillation screener of the present utility model.

[0019] Figure 3 This is an exploded view of the mesh oscillation screener of the utility model.

[0020] Figure 4 This is a schematic structural diagram of the outer cylindrical tube of the utility model.

[0021] Figure 5 For this utility model Figure 4 A magnified view of the structure at point A.

[0022] Figure 6 This is a schematic structural diagram of the outer filter cartridge of the present utility model.

[0023] Figure 7 This is a structural diagram of the inner filter cartridge in the utility model.

[0024] Figure 8 This is a diagram of the discharge guide trough of the present utility model.

[0025] 10. Frame; 12. Screw; 13. Screw connection; 14. Bean packaging box; 15. Bean box; 20. Outer cylindrical barrel; 21. Gear; 22. Feed pipe through hole; 23. Transmission pinion; 24. Transmission gear motor; 25. Discharge port; 26. Limiting ring; 27. Connecting rod; 28. Thrust bearing; 30. Outer filter cartridge; 31. Filter through hole 1; 32. Meshing teeth; 33. Worm; 34. Worm motor; 40. Inner filter cartridge; 41. Feed pipe; 42. Block; 43. Filter through hole 2; 44. Upper limit plate; 45. Lower limit plate; 46. Worm limit block; 48. Threaded cover; 50. Discharge guide groove; 51. Fixing plate; 52. Guide groove; 53. Rotating shaft; 54. Guide rod; 55. Discharge chute; 56. Limiting plate; 57. Pressure sensor. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] refer to Figure 1-7 , a bean automatic adjustment mesh oscillation screener includes a frame 10, the frame 10 is provided with a mesh oscillation screen for sorting beans, a bean packaging Cao structure for holding beans of different sizes, and a discharge guide chute 50 for guiding the beans to be discharged. The mesh oscillation screener includes an outer cylindrical barrel 20 that is limited and rotatably connected to the frame 10, a gear 21 is fixed on the top of the outer cylindrical barrel 20, and a transmission pinion 23 that is meshed with each other is provided on one side of the gear 21. The upper end of the transmission pinion 23 is driven and installed with a transmission gear motor 24, which is driven by the output shaft of the transmission gear motor 24 to intermittently rotate and drive the transmission pinion 23 to rotate. The transmission pinion 23 and the gear 21 are meshed with each other, thereby driving the outer cylindrical barrel 20 to rotate as a whole, and the rotation speed is intermittently changed, so that the beans are screened out by centrifugal force. During the speed change process, the beans are rolled in the inner filter barrel 40, which is conducive to the rapid screening of the beans;

[0028] The outer cylindrical barrel 20 is provided with an outer filter barrel 30 and an inner filter barrel 40. A feed pipe 41 is provided at the top of the inner filter barrel 40. The feed pipe 41 extends out of the outer cylindrical barrel 20. When feeding, the material is injected into the outer cylindrical barrel 20, the outer filter barrel 30 and the inner filter barrel 40 through the feed pipe 41.

[0029] A feed pipe through-hole 22 is formed through the top of the outer cylindrical barrel 20, and the feed pipe 41 extends out of the feed pipe through-hole 22. A plurality of slots 29 are formed on the edge of the feed pipe through-hole 22, and a plurality of clamping blocks 42 are fixedly provided on the edge of the feed pipe 41. The clamping blocks 42 extend out of the slots 29 and engage with the slots 29 to facilitate the fixed connection between the inner filter barrel 40 and the outer cylindrical barrel 20.

[0030] The outer filter cartridge 30 is limited and rotated to drive the sleeve on the outside of the inner filter cartridge 40. The outer filter cartridge 30 and the inner filter cartridge 40 fit together. A number of filter through-holes 2 43 are evenly distributed and are penetrated on the side wall of the inner filter cartridge 40. A number of filter through-holes 1 31 are evenly distributed and are penetrated on the outer filter cartridge 30. The filter through-holes 1 31 and the filter through-holes 2 43 are arranged in a one-to-one correspondence and overlap with each other. The rotation driving device between the outer filter cartridge 30 and the inner filter cartridge 40 realizes the rotation of the outer filter cartridge 30 relative to the inner filter cartridge 40, so that the filter through-holes 1 31 and the filter through-holes 2 43 rotate and interlace, realizing the change of the filter through-holes 1 31 and the filter through-holes 2 43. 3, which overlap with each other, is convenient for screening out beans of different sizes. Specifically, the outer side of the bottom end of the outer filter cartridge 30 is fixed with evenly distributed meshing teeth 32, and one side of the meshing teeth 32 is meshed with a worm 33. The worm 33 is connected to the inner filter cartridge 40 for limited rotation. One end of the worm 33 is driven by a worm motor 34. The output shaft of the worm motor 34 rotates to drive the worm 33 to rotate. The worm 33 and the meshing teeth 32 are meshed with each other. The rotation of the worm 33 drives the outer filter cartridge 30 and the inner filter cartridge 40 to rotate relative to each other, thereby adjusting and changing the size of the overlapping through-holes between the filter through-hole 1 31 and the filter through-hole 2 43;

[0031] A gap is provided between the outer filter drum 30 and the outer cylindrical drum 20, and a discharge port 25 is provided at the bottom end of the outer cylindrical drum 20. The discharge port 25 is communicated with the gap between the outer filter drum 30 and the outer cylindrical drum 20. The outer cylindrical drum 20, the outer filter drum 30 and the inner filter drum 40 are rotated intermittently by synchronous speed regulation, so that the beans in the outer cylindrical drum 20, the outer filter drum 30 and the inner filter drum 40 rotate. Under the action of centrifugal force, the beans adhere to the side walls of the outer filter drum 30 and the inner filter drum 40. Beans with a diameter smaller than the size of the through hole overlapped between the first filter through hole 31 and the second filter through hole 43 will pass through the through hole overlapped between the first filter through hole 31 and the second filter through hole 43 and fall into the gap between the outer filter drum 30 and the outer cylindrical drum 20.

[0032] Initially, the filter through hole 1 31 and the filter through hole 2 43 are offset from each other, so that the overlapping size between the filter through hole 1 31 and the filter through hole 2 43 is smaller, so that beans of smaller size can pass through the overlapping holes between the filter through hole 1 31 and the filter through hole 2 43. It is worth noting that when the outer filter cylinder 30, the inner filter cylinder 40 and the outer cylindrical cylinder 20 rotate, the beans adhere to the side walls of the outer filter cylinder 30 and the inner filter cylinder 40 under the action of centrifugal force, and the beans with a diameter smaller than the overlapping hole size between the filter through hole 1 31 and the filter through hole 2 43 will pass through the overlapping holes between the filter through hole 1 31 and the filter through hole 2 43. When the rotation speed of the outer filter cartridge 30, the inner filter cartridge 40 and the outer cylindrical cartridge 20 changes, the beans inside the inner filter cartridge 40 rolls and changes disorderly relative to the inner filter cartridge 40, so that more beans with a diameter smaller than the overlapped through-hole size between the first filter through-hole 31 and the second filter through-hole 43 will pass through the overlapped through-holes between the first filter through-hole 31 and the second filter through-hole 43. After being screened for a period of time under the action of centrifugal force, when the rotation of the outer filter cartridge 30, the inner filter cartridge 40 and the outer cylindrical cartridge 20 stops, the beans in the outer cylindrical cartridge 20 move downward under the action of gravity and fall through the discharge port 25, achieving one-time discharge;

[0033] Furthermore, the worm 33 is rotated by rotating the output shaft of the worm motor 34, and the worm 33 is engaged with the meshing teeth 32, thereby driving the outer filter cartridge 30 to rotate relative to the inner filter cartridge 40, so that the aperture difference between the filter through hole 1 31 and the filter through hole 2 43 is larger, and the above operation is repeated to make the size of the filtered beans larger, thereby filtering out beans of different sizes.

[0034] like Figure 1 As shown: In this embodiment, the bean packing drum structure includes a bean packing drum 14 that is linearly driven and arranged between the frame 10, and a number of bean drums 15 arranged at equal intervals are provided in the bean packing drum 14. The frame 10 is provided with a screw rod 12 for upper limit rotation connection, and a screw rod connection 13 is installed at one end of the screw rod 12 for driving. The screw rod 12 is threadedly connected to the bean packing drum 14, and the output shaft of the screw rod connection 13 drives the screw rod 12 to rotate. The screw rod 12 is threadedly connected to the bean packing drum 14, thereby driving the bean packing drum 14 to move on the frame 10. When the mesh oscillating screen for bean sorting screens out beans of different sizes, beans of different sizes fall into different bean drums 15 through the discharge guide groove 50, thereby realizing the sorting of beans according to size in different bean drums 15.

[0035] like Figure 8As shown, in this embodiment, the discharge guide trough 50 includes a discharge trough 55 located at the bottom end of the discharge port 25, and limit plates 56 are fixed on both sides of the discharge trough 55. The bottom end of the discharge trough 55 extends to the upper end of the bean packaging trough 14. The screened beans fall on the discharge trough 55 and fall into different bean troughs 15 along the inclined direction of the discharge trough 55.

[0036] The discharging guide trough 50 further comprises a guide rod 54 fixed to the bottom of the feeding chute 55, a fixing plate 51 is provided below the feeding chute 55, the fixing plate 51 is fixedly connected to the frame 10, a guide groove 52 is fixedly provided above the fixing plate 51, the guide rod 54 is located in the guide groove 52 and is adaptively slidably connected to the guide groove 52, the discharging guide trough 50 further comprises a pressure sensor 57 located below the feeding chute 55 for sensing the pressure on the feeding chute 55, a side position of the frame 10 is fixed with 60, the 60 is electrically connected to the rotation drive device of the outer cylindrical drum 20, the rotation drive device between the outer filter drum 30 and the inner filter drum 40, the pressure sensor 57 and the linear movement drive device between the bean packaging Cao 14 and the frame 10; the outer cylindrical drum 20, the outer filter drum 30 and the inner filter drum 40 stop rotating after a period of time, and the screened beans fall on the feeding chute 55, and the feeding chute 5 5 is subjected to pressure, causing the pressure sensor 57 to withstand greater pressure. When the beans of this size have been screened and fallen onto the bean sorting chute 14, the discharge chute 55 is no longer subjected to the impact force of the falling beans, and the pressure felt by the pressure sensor 57 decreases. The pressure sensor 57 transmits the pressure reduction signal to 60, which starts the worm motor 34. The output shaft of the worm motor 34 rotates to drive the worm 33 to rotate. The worm 33 engages with the meshing teeth 32, thereby driving the outer filter cartridge 30 to rotate relative to the inner filter cartridge 40, so that the aperture difference between the first filter hole 31 and the second filter hole 43 is larger. At the same time, 60 starts the screw connection 13, and the output shaft of the screw connection 13 rotates to drive the screw 12 to rotate, so that the bean sorting chute 14 moves on the frame 10, thereby changing the bean chute 15 of different sizes to the position at the bottom end of the discharge guide chute 50. When screening beans of larger sizes next time, the beans with larger diameters can be sorted into another frame.

[0037] It is worth noting that a rotating shaft 53 is provided in the guide groove 52 between the positions on both sides of the guide rod 54 and the rotating shaft 53 for limited rotation, which reduces the friction force on the guide rod 54 and helps the pressure on the discharge chute 55 to be more easily received by the pressure sensor 57.

[0038] In this embodiment, a threaded cover 48 is provided at the bottom end of the discharge port 25 . After the bean sorting operation is completed, the threaded cover 48 can be loosened and removed to allow the largest beans remaining in the inner filter cartridge 40 to fall out.

[0039] In this embodiment, the filter through hole 1 31 and the filter through hole 2 43 are both configured as square through holes, and one of the diagonal directions of the filter through hole 1 31 and the filter through hole 2 43 is arranged in the same direction as the axial direction of the inner filter cartridge 40. During the rotation of the outer filter cartridge 30 relative to the inner filter cartridge 40, the aperture of the filter through hole 1 31 and the filter through hole 2 43 that overlap with each other will change, but the aperture between the filter through hole 1 31 and the filter through hole 2 43 is always square, ensuring that the minimum diameter of the overlapping through hole between the filter through hole 1 31 and the filter through hole 2 43 changes, thereby achieving the effect of screening out beans of different sizes.

[0040] The specific method of the utility model is as follows: During the use of the bean automatic adjustment mesh oscillation screener of the utility model, the beans are first poured into the inner side of the inner filter cylinder 40 through the feed pipe 41. In the initial state, the threaded cover 48 is threadedly connected to the discharge port 25 to block the bottom end of the inner filter cylinder 40. The filter through hole 1 31 and the filter through hole 2 43 are staggered for a certain position, so that the size of the overlap between the filter through hole 1 31 and the filter through hole 2 43 is smaller, so that beans of smaller size can pass through the overlap between the filter through hole 1 31 and the filter through hole 2 43, and then the beans are filtered out by the transmission gear motor 24. The output shaft rotates to drive the transmission pinion 23, which meshes with the gear 21, thereby driving the outer filter drum 30, the inner filter drum 40, and the outer cylindrical drum 20 to rotate as a whole. After screening for a period of time under the action of centrifugal force, when the outer filter drum 30, the inner filter drum 40, and the outer cylindrical drum 20 stop rotating, the beans in the outer cylindrical drum 20 and the outer filter drum 30 move downward under the action of gravity and fall through the discharge port 25, realizing one-time discharge. The smaller beans fall on the discharge chute 55 and fall into one of the bean bags 15 along the inclined direction of the discharge chute 55.

[0041] When the beans of smaller size fall completely into the bean trough 15, the feed chute 55 is no longer subjected to the impact force of the falling beans, and the pressure sensed by the pressure sensor 57 decreases. The pressure sensor 57 transmits the pressure reduction signal to the 60, which starts the worm motor 34. The output shaft of the worm motor 34 rotates to drive the worm 33 to rotate. The worm 33 and the meshing teeth 32 engage with each other, thereby driving the outer filter cartridge 30 to rotate relative to the inner filter cartridge 40, so that the aperture difference between the filter through hole 1 31 and the filter through hole 2 43 is larger, which facilitates the passage of larger beans through the filter through hole 1 31 and the filter through hole 2. 43, and at the same time 60 starts the screw connection 13, so that the output shaft of the screw connection 13 rotates and drives the screw 12 to rotate, so that the bean sorting box 14 moves on the frame 10, thereby changing the different bean boxes 15 to the position at the bottom end of the discharge guide groove 50. When screening larger beans next time, the beans with larger diameters can be sorted into another box, and then the transmission gear motor 24 is started again to drive the outer filter cylinder 30, the inner filter cylinder 40 and the outer cylindrical cylinder 20 to rotate as a whole, thereby achieving the second screening. The larger beans screened out in the second screening eventually fall into another bean box 15;

[0042] Similarly, beans of different sizes are screened out, and finally, the threaded cover 48 is loosened and removed, so that the beans with the largest particles remaining in the inner filter cartridge 40 fall down and eventually fall into the corresponding frame.

[0043] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0044] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0045] The above description shows and describes several preferred embodiments of the present application. However, as previously mentioned, it should be understood that the present application is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present application can be used in various other combinations, modifications, and environments and can be modified within the scope of the application concept described herein through the above teachings or technology or knowledge in the relevant field. Modifications and changes made by those skilled in the art that do not depart from the spirit and scope of the present application should be protected by the claims appended hereto.

Claims

1. A beans automatic adjustment mesh oscillation screener, characterized in that: The invention comprises a frame (10), wherein the frame (10) is provided with a mesh oscillating screen for sorting beans, a bean packing structure for holding beans of different sizes, and a discharge guide trough (50) for guiding the beans to be discharged, wherein the mesh oscillating screen comprises an outer cylindrical barrel (20) connected to the frame (10) by a limited rotation drive arrangement, wherein an outer filter barrel (30) and an inner filter barrel (40) are arranged inside the outer cylindrical barrel (20), a feed pipe (41) is provided at the top end of the inner filter barrel (40), and the feed pipe (41) extends out of the outer cylindrical barrel (20), the inner filter barrel (40) is fixedly connected to the outer cylindrical barrel (20), and a side wall of the inner filter barrel (40) is penetrated A plurality of evenly distributed filter through holes (43) are provided, the outer filter cylinder (30) is limited and rotated and driven to be sleeved on the outside of the inner filter cylinder (40), the outer filter cylinder (30) and the inner filter cylinder (40) are fitted with each other, a plurality of evenly distributed filter through holes (31) are passed through the outer filter cylinder (30), the filter through holes (31) and the filter through holes (43) are arranged to correspond to each other and overlap, a gap is provided between the outer filter cylinder (30) and the outer cylindrical cylinder (20), a discharge port (25) is provided at the bottom end of the outer cylindrical cylinder (20), and the discharge port (25) and the gap between the outer filter cylinder (30) and the outer cylindrical cylinder (20) are communicated with each other.

2. The beans automatic adjustment mesh oscillation screener according to claim 1, characterized in that: The bean packaging trough structure comprises a bean packaging trough (14) linearly movable and driven between the frame (10), and a plurality of bean troughs (15) arranged at equal intervals are provided in the bean packaging trough (14).

3. The beans automatic adjustment mesh oscillation screener according to claim 1, characterized in that: The discharge guide trough (50) includes a lower trough (55) located at the bottom end of the discharge port (25), and limit plates (56) are fixedly provided on both sides of the lower trough (55). The bottom end of the lower trough (55) extends to the upper end of the bean packaging trough (14).

4. The beans automatic adjustment mesh oscillation screener according to claim 3, characterized in that: The discharge guide trough (50) further includes a pressure sensor (57) located below the discharge trough (55) for sensing the pressure applied to the discharge trough (55). A device (60) is fixedly provided on the side of the frame (10). The device (60) is electrically connected to the rotation drive device of the outer cylindrical barrel (20), the rotation drive device between the outer filter barrel (30) and the inner filter barrel (40), the pressure sensor (57), and the linear movement drive device between the bean packaging barrel (14) and the frame (10).

5. The beans automatic adjustment mesh oscillation screener according to claim 1, characterized in that: The discharge port (25) is threadedly connected with a threaded cover (48).

6. The beans automatic adjustment mesh oscillation screener according to claim 1, characterized in that: The first filter through hole (31) and the second filter through hole (43) are both configured as square through holes, and one of the diagonal directions of the first filter through hole (31) and the second filter through hole (43) is arranged in the same direction as the axial direction of the inner filter cylinder (40).

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