Grain cleaning equipment capable of classifying and weighing

Abstract

The present application relates to the technical field of grain processing, in particular to a grain cleaning equipment capable of classifying and weighing grains and sundries, comprising a rack, a fixing frame, a mounting frame and a feeding frame. The present application firstly screens out the fine impurities in the grains through the preliminary screening mechanism in the mounting frame, and continuously overturns the grains in the preliminary screening mechanism. After the grains are overturned for a certain period of time, the grains are sent into the interior of the fixing frame, and fall on the vibrating feeding assembly. The grains are thrown up while being forwarded by the vibrating feeding assembly, forming fluidized bed type conveying. A stable electrostatic field is generated in the interior of the fixing frame by the cleaning mechanism, which can fully separate the hair and dust in the grains in the electrostatic field. Meanwhile, the dust on the vibrating feeding assembly is timely sucked away by the suction mechanism. By adjusting the suction force of the suction assembly, the defective grains with hollows can also be cleaned, thereby effectively improving the quality of the cleaned grains.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grain processing, in particular to a grain cleaning equipment capable of classifying and weighing grains and sundries. BACKGROUND

[0002] Grain refers to the total of various plant seeds in cooking food, which can also be referred to as cereal. Grain crops contain rich nutrients, mainly including protein, vitamins, dietary fiber, fat, starch, etc. In ancient times, the road was called grain, and the residence was called food. Later, it was also commonly known as food grains, beans and potato grains and other raw grains and finished grain products. The grain concept of the Food and Agriculture Organization of the United Nations refers to cereal, including wheat, beans, coarse grains and rice.

[0003] The existing grain is often mixed with a lot of dust and fine sand after harvesting and storage, and people mostly use a screen to screen, and often need different types of screens to screen the grain several times, which not only leads to a large amount of labor, but also has low screening efficiency, and the quality of the cleaned grain is not the same.

[0004] Therefore, we propose a grain and sundry classification and weighing type grain cleaning equipment. SUMMARY

[0005] In view of the shortcomings of the prior art, the present application provides a grain and sundry classification and weighing type grain cleaning equipment for realizing multi-stage automatic cleaning of impurities in grain, improving the cleaning efficiency of impurities in grain and ensuring the quality of cleaned grain.

[0006] To achieve the above purpose, the present application is realized by the following technical scheme: a grain and sundry classification and weighing type grain cleaning equipment, comprising a rack, a fixed frame, a mounting frame and a feeding frame, the two sides of the top of the rack are respectively fixedly provided with a fixed frame and a mounting frame, and the top of the mounting frame is fixedly provided with a feeding frame, the inside of the mounting frame is provided with a primary screening mechanism, the inside of the fixed frame is provided with a cleaning mechanism, one side of the top of the rack is fixedly provided with a discharge pipe, and one end of the discharge pipe is in communication with the inside of the fixed frame, the back of the rack is provided with a suction mechanism, and the inside of the suction mechanism is in communication with the inside of the fixed frame, the inside of the fixed frame is provided with a vibrating feeding assembly, and one side of the vibrating feeding assembly extends to the inside of one side of the discharge pipe;

[0007] The preliminary screening mechanism comprises a screening barrel, the inside of the mounting frame is fixedly provided with the screening barrel, one side of the top of the screening barrel is fixedly provided with a material guide frame, the top of the material guide frame is fixedly connected with the bottom of the feeding frame, the bottom of the material guide frame is in communication with the inside of the screening barrel, the bottom of the screening barrel is fixedly provided with a material falling frame, one side of the screening barrel is also fixedly provided with a material discharging frame, the top of the screening barrel and the bottom of the material guide frame are provided with a feeding through hole and a material discharging screen, respectively, and the bottom of the screening barrel is provided with a material removing screen and a material discharging screen respectively on the top of the material falling frame and the material discharging frame.

[0008] The vibration feeding assembly comprises a connecting frame and a conveying belt, the upper part of the inside of the frame is fixedly provided with the connecting frame, and the inside of the connecting frame is rotatably provided with the conveying belt, the inside of the conveying belt is also provided with a plurality of vibration rollers, one end of the plurality of vibration rollers is connected through a belt drive, the front of the frame is fixedly provided with a vibration motor, and one end of the output shaft of the vibration motor is fixedly connected with one end of one of the vibration rollers.

[0009] The cleaning mechanism comprises a first mounting plate, the middle part of the top of the fixed frame is provided with the first mounting plate through a bolt group, the front and rear sides of the bottom of the first mounting plate are provided with parallel plate capacitors, the middle part of the bottom of the first mounting plate is also movably provided with an adsorption plate, the top of the first mounting plate is provided with a first servo cylinder on both sides, and the driving ends of the two first servo cylinders are respectively fixedly connected with the two sides of the top of the adsorption plate.

[0010] Preferably, one side of the fixed frame is rotatably provided with a sealing baffle, and one side of the sealing baffle is in sliding contact with the surface of the discharging pipe.

[0011] Preferably, the bottom of the inner wall of the feeding frame is slidably provided with a material blocking plate, and the material blocking plate is used to control the communication between the inside of the feeding frame and the mounting frame.

[0012] Preferably, the mesh diameter of the material removing screen is smaller than the mesh diameter of the material discharging screen.

[0013] Preferably, the circumferential surface of the screening barrel is fixedly provided with three arc-shaped frames, the inside of each of the three arc-shaped frames is slidably provided with an arc-shaped baffle, one side of each of the three arc-shaped frames is respectively fixedly connected with one side of the material guide frame, the material falling frame and the material discharging frame, and one side of each of the three arc-shaped baffles respectively extends into the inside of the material guide frame, the material falling frame and the material discharging frame.

[0014] Preferably, the material suction mechanism comprises a second mounting plate and a material suction frame, the top of the fixed frame is provided with the second mounting plate on both sides through a bolt group, the lower part of the second mounting plate is movably provided with the material suction frame, and the opposite side of each of the two material suction frames is provided with a material suction port.

[0015] Preferably, the top of the second mounting plate is fixedly provided with a second servo cylinder, and the driving end of the second servo cylinder is fixedly connected with the top of the material suction frame.

[0016] Preferably, the inside of the screening barrel is rotatably provided with a material turning frame, and the outer circumferential surface of the material turning frame is in sliding contact with the inner surface of the screening barrel.

[0017] Preferably, the inside of the machine frame is provided with a first collecting box, and the inside of the first collecting box is provided with two material collecting cavities.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] 1. The fine impurities in the grain are first screened out through the preliminary screening mechanism in the mounting frame, and the grain is continuously turned in the preliminary screening mechanism. After the grain is turned for a certain period of time, the grain is fed into the inside of the fixed frame, and the grain falls on the vibrating feeding assembly. The vibrating feeding assembly is used to simultaneously throw the grain upward during the process of feeding the grain forward, so that the fluidized bed type conveying is formed. The cleaning mechanism is used to generate a stable electrostatic field in the inside of the fixed frame, so that the hair and dust in the grain can be separated in the electrostatic field. The dust on the vibrating feeding assembly is timely sucked away through the material suction mechanism. The suction force of the material suction assembly can also be adjusted to clean the defective products with hollows in the grain, so that the quality of the cleaned grain is effectively improved.

[0020] 2. The grain is fed into the inside of the screening barrel through the guide frame. Then, the arc-shaped baffle is controlled to block the feeding through hole, and the arc-shaped baffle below the impurity removal screen is opened. The output shaft of the screening motor is used to control the material turning frame to rotate in the inside of the screening barrel, so that the grain is turned. The fine debris and small particle soil in the grain pass through the impurity removal screen and enter the inside of the material falling frame, so that the fine impurities in the grain are preliminarily cleaned. Then, the arc-shaped baffle on one side of the discharge screen is controlled to be opened, so that the grain passes through the discharge screen and enters the inside of the material falling frame. The large volume impurities are blocked by the discharge screen, so that the large volume impurities are further cleaned.

[0021] 3. By creating a uniform electrostatic field between two parallel plate capacitors, the drive end of the first servo cylinder moves the adsorption plate downward, bringing it closer to the grain. Combined with the vibrating feeding assembly, the grain is thrown upward, placing hair and dust particles in the grain within the electrostatic field. These particles are then directly adsorbed onto the adsorption plate, achieving a thorough cleaning of minute impurities and further improving the quality of the grain after cleaning. Additionally, when further cleaning impurities from the grain on the conveyor belt, the drive end of the second servo cylinder moves the suction frame downward, throwing the grain upward through the conveyor belt. The dust pump creates negative pressure at the suction port of the suction frame via the suction frame and suction pipe. During the upward throwing process, fine hair and dust particles are attracted by the suction port, achieving a further thorough cleaning of impurities and improving the cleaning effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a grain cleaning device capable of sorting and weighing grains and miscellaneous items according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the suction mechanism and the fixing frame structure according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the screening barrel and the feeding frame in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the screening bucket and tipping frame structure according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the internal structure of the cleaning mechanism and the fixing frame in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the connecting frame and conveyor belt structure according to an embodiment of the present invention.

[0028] In the diagram, 1. Frame; 2. Fixed frame; 3. Mounting frame; 4. Feeding frame; 5. Discharge pipe; 6. Baffle plate; 11. Screening bucket; 12. Guide frame; 13. Dropping frame; 14. Discharge frame; 15. Arc frame; 16. Arc baffle plate; 17. Tilting frame; 18. Screening motor; 19. First collection box; 110. Discharge port; 21. Connecting frame; 22. Conveyor belt; 23. Vibrating roller; 24. Vibrating motor; 31. First mounting plate; 32. Parallel plate capacitor; 33. Adsorption plate; 34. First servo cylinder; 41. Second mounting plate; 42. Suction frame; 43. Second servo cylinder; 44. Second collection box; 45. Dust pump; 46. Extraction frame; 47. Extraction pipe. Detailed Implementation

[0029] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0030] Embodiment 1

[0031] Please refer to Figures 1 to 6 As shown in the figure, a grain miscellaneous classification and weighing type grain cleaning equipment includes a rack 1, a fixed frame 2, a mounting frame 3 and a feeding frame 4, the fixed frame 2 and the mounting frame 3 are fixedly arranged on both sides of the top of the rack 1, and the feeding frame 4 is fixedly arranged on the top of the mounting frame 3, the inside of the mounting frame 3 is provided with a primary screening mechanism, the inside of the fixed frame 2 is provided with a cleaning mechanism, one side of the top of the rack 1 is fixedly provided with a discharge pipe 5, one end of the discharge pipe 5 is in communication with the inside of the fixed frame 2, a sealing baffle is rotatably arranged on one side of the fixed frame 2, and one side of the sealing baffle is in sliding contact with the surface of the discharge pipe 5, a suction mechanism is arranged on the back of the rack 1, the inside of the suction mechanism is in communication with the inside of the fixed frame 2, a vibrating feeding assembly is arranged in the inside of the fixed frame 2, and one side of the vibrating feeding assembly extends to the inside of one side of the discharge pipe 5.

[0032] It should be noted that when the impurities in the grain are classified and cleaned, the grain mixed with impurities is sent into the inside of the feeding frame 4, the grain enters the inside of the mounting frame 3 through the feeding frame 4, the fine impurities in the grain are first screened out in the inside of the mounting frame 3 by using the primary screening mechanism, the grain is continuously turned over in the inside of the primary screening mechanism, after the grain is turned over for a certain time, the grain is sent into the inside of the fixed frame 2, the grain falls on the vibrating feeding assembly, the grain is thrown up at the same time during the process of being transported forward by using the vibrating feeding assembly, a fluidized bed type conveying is formed, a stable electrostatic field is generated in the inside of the fixed frame 2 by cooperating with the cleaning mechanism, the hair and dust in the grain can be fully separated in the electrostatic field, at the same time, the dust on the vibrating feeding assembly is timely sucked away by using the suction mechanism, the defective products with hollows in the grain can also be cleaned by adjusting the suction force of the suction assembly, so that the quality of the cleaned grain is effectively improved.

[0033] Further, a blocking plate 6 is slidably arranged at the bottom of the inner wall of the feeding frame 4, and the blocking plate 6 is used to control the communication between the feeding frame 4 and the mounting frame 3.

[0034] Further, the primary screening mechanism includes a screening barrel 11, the inside of the mounting frame 3 is fixedly provided with the screening barrel 11, and one side of the top of the screening barrel 11 is fixedly provided with a guide frame 12, the top of the guide frame 12 is fixedly connected with the bottom of the feeding frame 4, and the bottom of the guide frame 12 is in communication with the inside of the screening barrel 11, the bottom of the screening barrel 11 is fixedly provided with a discharging frame 13, and one side of the screening barrel 11 is also fixedly provided with a discharging frame 14, the top of the screening barrel 11 and located at the bottom of the guide frame 12 is provided with a feeding through hole, and the bottom of the screening barrel 11 and located at the top of the discharging frame 13 and the discharging frame 14 is respectively provided with an impurity removal screen and a discharging screen, wherein the screen hole diameter of the impurity removal screen is smaller than that of the discharging screen, the peripheral surface of the screening barrel 11 is fixedly provided with three arc-shaped frames 15, and the inside of the three arc-shaped frames 15 is slidably provided with arc-shaped baffles 16, one side of the three arc-shaped frames 15 is respectively fixedly connected with one side of the guide frame 12, the discharging frame 13 and the discharging frame 14, and one side of the three arc-shaped baffles 16 respectively extends to the inside of the guide frame 12, the discharging frame 13 and the discharging frame 14, wherein the three arc-shaped baffles 16 are slidably driven in the inside of the arc-shaped frame 15 through the electric sliding block, and the three arc-shaped baffles 16 are respectively slid into the inside of the guide frame 12, the discharging frame 13 and the discharging frame 14 to block one side of the feeding through hole, the impurity removal screen and the discharging screen, so that the screening barrel 11 can classify and clean different impurities in the grain.

[0035] Further, the inside of the screening barrel 11 is rotatably provided with a turnover frame 17, and the outer peripheral surface of the turnover frame 17 is in sliding contact with the inner surface of the screening barrel 11, the front surface of the mounting frame 3 is fixedly provided with a screening motor 18, and one end of the output shaft of the screening motor 18 is fixedly connected with one end of the turnover frame 17 through a shaft coupling, the grain is sent into the inside of the screening barrel 11 through the guide frame 12, then the arc-shaped baffle 16 is controlled to block the feeding through hole, the arc-shaped baffle 16 below the impurity removal screen is opened, the output shaft of the screening motor 18 is used to control the turnover frame 17 to rotate in the inside of the screening barrel 11, the grain in the inside of the screening barrel 11 is turned over, the small debris and small particle soil in the grain pass through the impurity removal screen and enter the inside of the discharging frame 13, so that the small impurities in the grain are preliminarily cleaned, then the arc-shaped baffle 16 on one side of the discharging screen is opened, the grain passes through the discharging screen and enters the inside of the discharging frame 14, and the large volume impurities are blocked by the discharging screen, so that the large volume impurities are further cleaned.

[0036] Further, the inside of the rack 1 is provided with a first collection box 19, and the inside of the first collection box 19 is provided with two material collecting cavities, the inside of the material falling frame 13 is communicated with the inside of one of the material collecting cavities, one side of the bottom of the screening barrel 11 is further provided with a discharge port 110, and one side of the discharge port 110 is communicated with the inside of the other material collecting cavity through a discharge pipe, and the discharge pipe is communicated with the inside of the discharge port 110 through a material suction fan. The large volume impurities in the inside of the screening barrel 11 are extracted and sent into the inside of the first collection box 19 through the cooperation of the discharge port 110 and the discharge pipe, and the first collection box 19 is used to classify and collect the fine impurities and the large volume impurities.

[0037] Embodiment 2

[0038] As a further supplement to the scheme in Embodiment 1, the vibrating feeding assembly includes a connecting frame 21 and a conveying belt 22, and the inside of the upper part of the rack 1 is fixedly provided with the connecting frame 21, and the inside of the connecting frame 21 is rotatably provided with the conveying belt 22. The inside of the conveying belt 22 is further provided with a plurality of vibrating rollers 23, and one end of the plurality of vibrating rollers 23 is connected through a belt drive. The front of the rack 1 is fixedly provided with a vibrating motor 24, and one end of the output shaft of the vibrating motor 24 is fixedly connected with one end of one of the vibrating rollers 23. The output shaft of the vibrating motor 24 controls the rotation of the plurality of vibrating rollers 23 in the inside of the conveying belt 22, so that the conveying belt 22 simultaneously throws the grain upward during conveying the grain to one side. The cleaning mechanism and the material suction mechanism can more carefully clean the impurities in the grain.

[0039] The cleaning mechanism includes a first mounting plate 31, and the middle part of the top of the fixed frame 2 is provided with the first mounting plate 31 through a bolt group. The front and rear sides of the bottom of the first mounting plate 31 are both provided with parallel plate capacitors 32. The bottom of the first mounting plate 31 is further movably provided with an adsorption plate 33. The top of the first mounting plate 31 is provided with first servo cylinders 34 on both sides. The driving ends of the two first servo cylinders 34 are respectively fixedly connected with the top of both sides of the adsorption plate 33. A voltage is applied to one end of the two parallel plate capacitors 32 to generate an electrostatic field between the two parallel plate capacitors 32. The principle of forming the electrostatic field is that when the voltage is applied to the parallel plate capacitor, the positive electrode attracts negative charges and the negative electrode attracts positive charges. The charges accumulate between the metal plates, which causes the electric field strength on the metal plate to increase, forming a uniform electrostatic field between the two parallel plate capacitors 32. Then the driving end of the first servo cylinder 34 drives the adsorption plate 33 to move downward, so that the adsorption plate 33 is close to the grain. The vibrating feeding assembly throws the grain upward, so that the hair and dust in the grain are placed in the electrostatic field. After the hair and dust in the grain contact the surface of the adsorption plate 33, they are directly adsorbed on the adsorption plate 33, thereby realizing careful cleaning of the small impurities in the grain and further improving the quality of the grain after cleaning.

[0040] Further, the suction mechanism comprises a second mounting plate 41 and a suction frame 42, the top of the fixed frame 2 is provided with the second mounting plate 41 on both sides through the bolt set, and the lower side of the second mounting plate 41 is movably provided with the suction frame 42, wherein the opposite sides of the two suction frames 42 are provided with suction ports, the top of the second mounting plate 41 is fixedly provided with a second servo cylinder 43, and the driving end of the second servo cylinder 43 is fixedly connected with the top of the suction frame 42, the back of the rack 1 is fixedly provided with a second collection box 44, and the top of the second collection box 44 is provided with a dust suction pump 45, the inlet end of the dust suction pump 45 is provided with a suction frame 46, and the two ends of the suction frame 46 are communicated with the interiors of the two suction frames 42 through suction pipes 47.

[0041] It should be noted that when further cleaning the impurities in the grain on the conveying belt 22, the driving end of the second servo cylinder 43 drives the suction frame 42 to move downward, the grain is thrown upward through the conveying belt 22, the dust suction pump 45 generates negative pressure at the suction port of the suction frame 42 through the suction frame 46 and the suction pipe 47, and the fine hair and dust are sucked into the suction port in the process of throwing upward, so that the impurities in the grain are further cleaned in detail, and the cleaning effect of the impurities in the grain is improved.

[0042] Example 3

[0043] The cleaning method of the grain cleaning equipment capable of classifying and weighing impurities in grain is also disclosed in the embodiment, and specifically comprises the following steps:

[0044] The grain mixed with impurities is sent into the interior of the feeding frame 4, the grain enters the interior of the mounting frame 3 through the feeding frame 4, is sent into the interior of the screening barrel 11 through the guide frame 12, then the arc-shaped baffle 16 controls the feeding through hole to be blocked, the arc-shaped baffle 16 below the impurity removing screen is opened, the output shaft of the screening motor 18 controls the turning of the turning frame 17 in the interior of the screening barrel 11, the grain in the interior of the screening barrel 11 is turned, the fine debris and small particle soil in the grain pass through the impurity removing screen and enter the interior of the discharging frame 13, then the arc-shaped baffle 16 on one side of the discharging screen is opened, and the grain passes through the discharging screen and enters the interior of the discharging frame 14;

[0045] The large-volume impurities in the interior of the screening barrel 11 are extracted through the cooperation of the discharging port 110 and the discharging pipe and then sent into the interior of the first collection box 19, and the first collection box 19 is used for classifying and collecting the fine impurities and the large-volume impurities;

[0046] The grain falls on the conveying belt 22 through the discharge frame 14, and the conveying belt 22 drives the grain to move to one side of the discharge pipe 5, and at the same time, the vibration motor 24 drives the vibration rollers 23 to rotate in the conveying belt 22, so that the conveying belt 22 throws the grain upward while conveying the grain to one side;

[0047] The voltage is applied to one end of the two parallel plate capacitors 32 to generate an electrostatic field between the two parallel plate capacitors 32, and then the driving end of the first servo cylinder 34 drives the adsorption plate 33 to move downward, so that the adsorption plate 33 is close to the grain, and the vibration feeding assembly throws the grain upward, so that the hair and dust in the grain are placed in the electrostatic field, and the hair and dust in the grain are directly adsorbed on the surface of the adsorption plate 33 after contacting the surface of the adsorption plate 33;

[0048] The driving end of the second servo cylinder 43 drives the suction frame 42 to move downward, the conveying belt 22 throws the grain upward, the dust suction pump 45 generates negative pressure at the suction port of the suction frame 42 through the suction frame 46 and the suction pipe 47, and the fine hair and dust are sucked into the suction port during the upward throwing of the grain.

[0049] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0050] It should be noted that in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0051] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A grain cleaning device for sorting and weighing grains and miscellaneous items, comprising a frame (1), a fixed frame (2), a mounting frame (3), and a feeding frame (4), wherein the fixed frame (2) and the mounting frame (3) are respectively fixedly installed on both sides of the top of the frame (1), and the feeding frame (4) is fixedly installed on the top of the mounting frame (3), characterized in that: The inside of the mounting frame (3) is provided with a preliminary screening mechanism, the inside of the fixed frame (2) is provided with a cleaning mechanism, one side of the top of the rack (1) is fixedly provided with a discharge pipe (5), and one end of the discharge pipe (5) is in communication with the inside of the fixed frame (2), the back of the rack (1) is provided with a suction mechanism, and the inside of the suction mechanism is in communication with the inside of the fixed frame (2), the inside of the fixed frame (2) is provided with a vibrating feeding assembly, and one side of the vibrating feeding assembly extends to the inside of one side of the discharge pipe (5); The preliminary screening mechanism comprises a screening barrel (11), the inside of the mounting frame (3) is fixedly provided with the screening barrel (11), one side of the top of the screening barrel (11) is fixedly provided with a guide frame (12), the top of the guide frame (12) is fixedly connected with the bottom of the feeding frame (4), the bottom of the guide frame (12) is in communication with the inside of the screening barrel (11), the bottom of the screening barrel (11) is fixedly provided with a discharging frame (13), and one side of the screening barrel (11) is also fixedly provided with a discharging frame (14), the top of the screening barrel (11) and the bottom of the guide frame (12) are provided with a feeding hole, and the bottom of the screening barrel (11) is provided with a impurity removal screen and a discharging screen at the top of the discharging frame (13) and the discharging frame (14) respectively, the circumferential surface of the screening barrel (11) is fixedly provided with three arc-shaped frames (15), and the inside of the three arc-shaped frames (15) is slidably provided with an arc-shaped baffle (16), one side of the three arc-shaped frames (15) is fixedly connected with one side of the guide frame (12), the discharging frame (13) and the discharging frame (14) respectively, and one side of the three arc-shaped baffles (16) extends to the inside of the guide frame (12), the discharging frame (13) and the discharging frame (14) respectively, the inside of the screening barrel (11) is rotatably provided with a turnover frame (17), and the outer circumferential surface of the turnover frame (17) is in sliding contact with the inner surface of the screening barrel (11), the front of the mounting frame (3) is fixedly provided with a screening motor (18), and one end of the output shaft of the screening motor (18) is fixedly connected with one end of the turnover frame (17) through a shaft coupling; The vibrating feeding assembly comprises a connecting frame (21) and a conveying belt (22), the inside of the top of the rack (1) is fixedly provided with the connecting frame (21), and the inside of the connecting frame (21) is rotatably provided with the conveying belt (22), the inside of the conveying belt (22) is also provided with a plurality of vibrating rollers (23), and one end of the plurality of vibrating rollers (23) is connected through a belt drive, the front of the rack (1) is fixedly provided with a vibrating motor (24), and one end of the output shaft of the vibrating motor (24) is fixedly connected with one end of one of the vibrating rollers (23). The cleaning mechanism comprises a first mounting plate (31), the middle of the top of the fixed frame (2) is provided with the first mounting plate (31) through a bolt group, and the front and rear sides of the bottom of the first mounting plate (31) are provided with parallel plate capacitors (32), and the middle of the bottom of the first mounting plate (31) is movably provided with a suction plate (33), the top of the first mounting plate (31) is provided with a first servo cylinder (34) on both sides, and the driving ends of the two first servo cylinders (34) are fixedly connected with the top of the suction plate (33) on both sides, respectively. The material suction mechanism comprises a second mounting plate (41) and a material suction frame (42), the top of the fixed frame (2) is provided with the second mounting plate (41) on both sides through a bolt group, and the second mounting plate (41) is movably provided with the material suction frame (42) below, and the opposite sides of the two material suction frames (42) are provided with material suction ports, respectively, the top of the second mounting plate (41) is fixedly provided with a second servo cylinder (43), and the driving end of the second servo cylinder (43) is fixedly connected with the top of the material suction frame (42), the back of the rack (1) is fixedly provided with a second collecting box (44), and the top of the second collecting box (44) is provided with a dust suction pump (45), the dust suction pump (45) is provided with a material extraction frame (46) at the inlet end, and the two ends of the material extraction frame (46) are communicated with the interiors of the two material suction frames (42) through material extraction pipes (47).

2. The grain cleaning apparatus according to claim 1, characterized in that: The fixed frame (2) is rotatably provided with a sealed baffle on one side, and the surface of the baffle is in sliding contact with the surface of the discharge pipe (5).

3. The grain cleaning apparatus according to claim 1, wherein: The bottom of the inner wall of the feeding frame (4) is movably provided with a material blocking plate (6), and the material blocking plate (6) is used for controlling the communication between the feeding frame (4) and the mounting frame (3).

4. The grain cleaning apparatus of claim 1, wherein: The diameter of the screen hole of the impurity removal screen is smaller than that of the discharge screen.

5. The grain cleaning apparatus of claim 1, wherein: The inside of the rack (1) is provided with a first collecting box (19), and the inside of the first collecting box (19) is provided with two material collecting cavities, the inside of the material falling frame (13) is communicated with the inside of one of the material collecting cavities, and the bottom of the material screening barrel (11) is further provided with a discharge port (110) on one side, the discharge port (110) is communicated with the inside of the other material collecting cavity through a discharge pipe, and the discharge pipe is communicated with the inside of the discharge port (110) through a material extraction fan.

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