Screening device for sorghum processing

Abstract

The invention relates to the field of grain screening, in particular to a screening device for sorghum processing. The technical problems that the content of impurities in screened sorghum is high, and the quality is difficult to guarantee are solved. According to the technical scheme, a waste discharging frame is fixedly connected to the right side of the shell, a dust sealing frame is fixedly connected to the interior of the shell and is in an inclined state, the left side and the right side of the top of the dust sealing frame incline towards the middle, a first chassis and a second chassis are fixedly connected to the bottom of the shell, a pouring groove is fixedly connected to the top of the shell, and a first motor is installed on the right side of the shell. Through reciprocating loosening and tightening of the flexible stretching cloth, sorghum and impurities on the flexible stretching cloth can bounce to move upwards, the impurities with light mass can be discharged from the waste discharging frame along with airflow blown out by the air blowing unit, the impurities with heavy mass can be collected through the collecting box and discharged out of the shell, efficient removal of the impurities is achieved, and the practicability is high. And the internal space of the shell is effectively utilized, so that the space utilization is improved.

Description

Technical Field

[0001] The invention relates to the field of grain screening, and in particular to a screening device for sorghum processing. Background Art

[0002] As an important food crop, sorghum has rich nutritional and economic value. It has strong adaptability and stress resistance and is widely planted in various parts of my country. However, after sorghum is harvested, its grains often contain a certain proportion of impurities, including broken straw, soil, stones and insect eggs. The presence of these impurities seriously affects the processing quality and market value of sorghum.

[0003] The existing sorghum processing and screening equipment uses a vibrating screen to remove impurities. This method filters the sorghum through sieves with different apertures, but this method cannot handle stones of the same size as the sorghum, and finer broken straw can pass through the sieve holes of the sieve. At the same time, the sorghum will be attached with clods of soil and dust during transportation, which the vibrating screen cannot handle, making it difficult to guarantee the quality of the sorghum after screening.

[0004] In order to improve the purity and processing efficiency of sorghum, it is urgent to develop an efficient and reliable sorghum processing and screening device. Summary of the invention

[0005] In order to overcome the shortcomings mentioned in the background technology, the purpose of the present invention is to provide a sorghum processing and screening device that can stably and efficiently remove impurities.

[0006] The technical scheme is as follows: A sorghum processing and screening device comprises a shell, a waste discharge frame is fixedly connected to the right side of the shell, a dust sealing frame is fixedly connected inside the shell, the dust sealing frame is in an inclined state, and the left and right sides of the top are inclined toward the middle, a first chassis and a second chassis are fixedly connected to the bottom of the shell, a pouring chute is fixedly connected to the top of the shell, and a first motor is installed on the right side, and also comprises a specific gravity mechanism, the specific gravity mechanism is installed inside the shell, and the bottom of the specific gravity mechanism is connected to a screening mechanism; The specific gravity mechanism includes a first support frame and a blowing unit. The first support frame is fixedly connected to the inside of the shell in a mirror-like distribution. The top of the first support frame is fixed to the dust sealing frame. A first sliding frame is slidably connected to one side of the first support frame. A flexible stretch cloth is commonly connected between the mirror-like first sliding frames by bolts. The top and front end of the flexible stretch cloth are in contact with the dust sealing frame. The bottom of the mirror-like first support frame is commonly slidably connected to the second sliding frame. A first sliding groove is mirror-likely opened on the top of the second sliding frame. A sliding column is slidably connected in the first sliding groove. The sliding column is fixed to the first sliding frame. A rotating rod is rotatably connected to the rear side of the second sliding frame in a mirror-like distribution. The rotating rods in the mirror-like distribution are commonly rotatably connected to a crankshaft. The crankshaft is rotatably connected to the shell, and one end is fixed to the output shaft of the first motor. A blowing unit is linearly installed on the left side of the shell.

[0007] Preferably, the specific gravity mechanism also includes a second support frame, the front end of the second sliding frame is fixedly connected to the second support frame, the second support frame is slidably connected to the dust sealing frame, the top of the second support frame is fixedly connected to the first brush in a mirror distribution, and the top of the inner top of the shell is fixedly connected to the second brush in a mirror distribution.

[0008] Preferably, the specific gravity mechanism also includes a collecting box, and the top of the first support frame with mirror distribution is commonly fixed with the collecting box, the front side of the collecting box is in contact with the flexible stretch cloth and is provided with a collecting groove, the front side of the collecting box is fixed with the dust sealing frame, and the bottom of the collecting box is connected and fixed with a discharge pipe, one end of the discharge pipe passes through the outer shell and is connected with the outside.

[0009] Preferably, the specific gravity mechanism further comprises a rubber strip, and the rubber strip is linearly distributed and fixedly connected to the top end of the shell.

[0010] Preferably, the blower unit includes a ventilation duct, a ventilation duct is linearly distributed and connected and fixedly connected to the outer shell, a ventilation mounting frame is fixedly connected inside the ventilation duct, a second motor is installed on one side of the ventilation mounting frame, the output shaft of the second motor passes through the ventilation mounting frame and is fixedly connected to an impeller, a plurality of support columns are circumferentially distributed and fixedly connected to one side of the ventilation duct, and a protective plate is commonly fixedly connected to the plurality of support columns.

[0011] Preferably, the screening mechanism includes a first shaking frame, and second sliding grooves are provided on the left and right sides of the outer shell. The first shaking frame is slidably connected in the two second sliding grooves. The front end of the first shaking frame is inclined downward and passes through the outer shell. The bottom of the first shaking frame is rotatably connected to the crankshaft, and the first screen is clamped on the first shaking frame.

[0012] Preferably, the screening mechanism also includes a C-type frame, and a plurality of C-type frames are linearly distributed and fixedly connected on the left and right sides of the first shaking frame, and the plurality of C-type frames are commonly fixedly connected to the second shaking frame and the third shaking frame, and the front end of the third shaking frame is inclined downward and passes through the outer shell, and the third shaking frame is located below the second shaking frame, and the second shaking frame is clamped with the second screen, and the rear ends of the second shaking frame and the second screen are inclined downward and in contact with the rear end top of the third shaking frame, and a cleaning mechanism is installed between the two C-type frames in the middle.

[0013] Preferably, the cleaning mechanism includes a supporting beam, a first wedge-shaped block and a second wedge-shaped block. The supporting beam is fixedly connected between two C-shaped frames in the middle. A long brush is slidably connected to the bottom of the supporting beam. A ball-head soft rod is linearly fixedly connected to the long brush, and a round-head column is mirror-distributed and fixedly connected to the long brush. The round-head column is slidably connected to the C-shaped frame. The first wedge-shaped block and the second wedge-shaped block are fixedly connected in the outer shell, and the mirror-distributed round-head columns are respectively in contact with the first wedge-shaped block and the second wedge-shaped block.

[0014] Preferably, a discharging mechanism is also included. The discharging mechanism is installed at the bottom of the shell, and the discharging mechanism includes a screw. The screw is threadedly connected to the rear side of the shell, one end of the screw is fixedly connected to a knob, and the other end is rotatably connected to a rotating frame, one end of the rotating frame is rotatably connected to a spring plate, a spring is connected between the spring plate and the shell, the left and right sides of the spring plate are slidably connected to the shell, and the top of the spring plate is in sliding contact with the shell.

[0015] Preferably, the discharging mechanism further includes a discharging rack, the discharging rack is fixedly connected between the first chassis and the second chassis, a partition plate is fixedly connected linearly to the top of the discharging rack, and the partition plate is fixedly connected to the outer shell.

[0016] The beneficial effects of the present invention are: 1. Through the reciprocating relaxation and tension of the flexible stretch cloth, the sorghum and impurities on the flexible stretch cloth can be bounced and moved upward, and the lighter impurities will be discharged from the waste discharge rack with the air flow blown out by the blowing unit, and the heavier impurities will be collected by the collecting box and discharged from the outer shell, thereby achieving efficient removal of impurities, effectively utilizing the space inside the outer shell, and improving space utilization.

[0017] 2. By utilizing the kinetic energy generated when the sorghum falls, when the sorghum hits the spring plate, the fullness of the sorghum itself changes the flying distance of the sorghum when it is rebounded, thereby effectively distinguishing between full and shriveled sorghum. The simple structure is convenient for later maintenance.

[0018] 3. When different varieties of sorghum need to be screened, the device can be adapted to different varieties of sorghum by replacing the first screen and the second screen, and the rotation of the screw can adjust the angle of the spring plate through the rotating frame and the spring, thereby changing the flight distance of the sorghum when it is rebounded, thereby adjusting the judgment of the fullness of the sorghum and improving the applicability of the device during screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial cutaway schematic diagram of the housing of the present invention; Figure 3 It is a partial cutaway schematic diagram of the dust sealing frame of the present invention; Figure 4 is a schematic structural diagram of a second sliding frame of the present invention; Figure 5 It is a partial exploded view of the specific gravity mechanism of the present invention; Figure 6 is a partial cutaway view of a first sliding frame of the present invention; Figure 7 A half-section schematic diagram of a ventilator of the present invention; Figure 8 It is a structural schematic diagram of the first shaking frame of the present invention; Fig. 9is a schematic structural diagram of a second shaking frame of the present invention; Fig.10 A half-section schematic diagram of a C-shaped frame of the present invention; Fig.11 For the present invention Fig. 9 Enlarged view of point A in the middle.

[0020] Description of the accompanying drawings: 1_housing, 101_waste discharge rack, 102_dust sealing rack, 103_first chassis, 104_second chassis, 2_dumping chute, 3_first motor, 4_specific gravity mechanism, 401_first support frame, 402_first sliding frame, 403_flexible stretch cloth, 404_second sliding frame, 4041_second support frame, 4042_first brush, 4043_second brush, 405_sliding column, 406_rotating rod, 407_crankshaft, 408_collection box, 409_rubber strip, 410_blowing unit, 4101_ventilation cylinder, 4102_ventilation mounting frame, 410 3_second motor, 4104_impeller, 4105_support column, 4106_protection plate, 5_screening mechanism, 501_first shaking frame, 502_first screen, 503_C-type frame, 504_second shaking frame, 505_second screen, 506_third shaking frame, 6_cleaning mechanism, 601_support beam, 602_long brush, 6021_ball head soft rod, 603_round head column, 604_first wedge block, 605_second wedge block, 7_discharging mechanism, 701_screw, 702_knob, 703_rotating frame, 704_spring plate, 705_discharging frame, 706_partition plate. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings. Example 1

[0022] A screening device for sorghum processing, such as Figure 1-Figure 7 As shown, it includes a shell 1, a waste discharge frame 101 is fixedly connected to the right side of the shell 1, a dust sealing frame 102 is fixedly connected inside the shell 1, the dust sealing frame 102 is in an inclined state, and the left and right sides of the top are inclined toward the middle, a first chassis 103 and a second chassis 104 are fixedly connected to the bottom of the shell 1, a pouring chute 2 is fixedly connected to the top of the shell 1, and a first motor 3 is installed on the right side, and also includes a specific gravity mechanism 4, the specific gravity mechanism 4 is installed inside the shell 1, and a screening mechanism 5 is connected to the bottom of the specific gravity mechanism 4; The specific gravity mechanism 4 includes a first support frame 401 and a blast unit 410. The first support frame 401 is fixedly connected to the housing 1 in a mirror-image distribution. The top of the first support frame 401 is fixedly connected to the dust-sealing frame 102. A first sliding frame 402 is slidably connected to one side of the first support frame 401. The first sliding frames 402 in the mirror-image distribution are connected together with a flexible stretch cloth 403 by bolts. The top and front end of the flexible stretch cloth 403 are in contact with the dust-sealing frame 102. The bottom of the first support frame 401 in the mirror-image distribution is slidably connected to the second sliding frame 403. 4. A first sliding groove is provided on the top of the second sliding frame 404 in a mirror-image distribution. The first sliding groove is provided along an inclined direction. A sliding column 405 is slidably connected in the first sliding groove. The sliding column 405 is fixedly connected to the first sliding frame 402. A rotating rod 406 is rotatably connected to the rear side of the second sliding frame 404 in a mirror-image distribution. The rotating rods 406 in a mirror-image distribution are rotatably connected to a crankshaft 407. The crankshaft 407 is rotatably connected to the housing 1, and one end is fixedly connected to the output shaft of the first motor 3. A blower unit 410 is linearly installed on the left side of the housing 1.

[0023] The specific gravity mechanism 4 also includes a second support frame 4041, the front end of the second sliding frame 404 is fixedly connected to the second support frame 4041, the second support frame 4041 is slidably connected to the dust sealing frame 102, the top of the second support frame 4041 is fixedly connected to the first brush 4042 in a mirror-image distribution, the top of the inner top of the shell 1 is fixedly connected to the second brush 4043 in a mirror-image distribution, and the bottom of the first brush 4042 is in contact with the bottom of the second brush 4043.

[0024] The specific gravity mechanism 4 also includes a collecting box 408, and the collecting box 408 is fixedly connected to the top of the mirror-distributed first support frame 401. The front side of the collecting box 408 is in contact with the flexible stretch cloth 403 and is provided with a collecting groove. The front side of the collecting box 408 is fixedly connected to the dust sealing frame 102, and the bottom of the collecting groove is higher than the first support frame 401. The bottom of the collecting box 408 is connected and fixedly connected with a discharge pipe, and one end of the discharge pipe passes through the outer shell 1 and is connected to the outside.

[0025] The specific gravity mechanism 4 further includes a rubber strip 409 . The rubber strip 409 is linearly distributed and fixedly connected to the top of the housing 1 . The bottom surface of the rubber strip 409 is arc-shaped and has a rough surface.

[0026] The blower unit 410 includes a ventilation duct 4101, which is linearly distributed and connected to the outer shell 1, a ventilation mounting frame 4102 is fixed inside the ventilation duct 4101, a second motor 4103 is installed on one side of the ventilation mounting frame 4102, the output shaft of the second motor 4103 passes through the ventilation mounting frame 4102 and is fixed to an impeller 4104, a plurality of support columns 4105 are circumferentially distributed and fixed to one side of the ventilation duct 4101, and a protective plate 4106 is commonly fixed to the plurality of support columns 4105, and the support columns 4105 can enable airflow to circulate in the outer shell 1.

[0027] Before screening sorghum, the staff first starts the first motor 3 and the second motor 4103. The output shaft of the second motor 4103 rotates counterclockwise, driving the impeller 4104 to rotate synchronously. The impeller 4104 pushes the air around it to the right, and the airflow passes over the flexible stretch cloth 403 and is discharged to the outside through the waste discharge rack 101. At the same time, the rotation of the impeller 4104 puts its left side in a low-pressure state. The ventilation duct 4101 inhales air from the outside through the gap between adjacent support columns 4105. After the air enters the ventilation duct 4101, it passes through the ventilation mounting rack 4102 to reach the impeller 4104, so that there is a continuous rightward airflow above the flexible stretch cloth 403. At the same time, the output shaft of the first motor 3 rotates counterclockwise, driving the crankshaft 407 to rotate synchronously. The rotation of the crankshaft 407 drives the second sliding rack 404 to move back and forth along the first support rack 401 through the rotating rod 406. Repeated sliding, if the second sliding frame 404 slides forward, the first sliding slot of the second sliding frame 404 will move forward, so that the mirror-distributed sliding posts 405 are close to each other under the limit of the first sliding slot of the second sliding frame 404, and the sliding posts 405 move through the first sliding slot to drive the mirror-distributed first sliding frames 402 to approach each other, so that the flexible stretch fabric 403 is relaxed, and the center of the flexible stretch fabric 403 moves downward; if the second sliding frame 404 slides backward, the first sliding slot of the second sliding frame 404 will move backward, so that the mirror-distributed sliding posts 405 are separated from each other under the limit of the first sliding slot of the second sliding frame 404, and the sliding posts 405 move to drive the mirror-distributed first sliding frames 402 to separate from each other, so that the flexible stretch fabric 403 is tightened, and the center of the flexible stretch fabric 403 moves upward, thereby realizing the reciprocating relaxation and tightening of the flexible stretch fabric 403;The staff begins to screen the sorghum and pours the sorghum containing impurities into the pouring trough 2. The sorghum and impurities fall on the first brush 4042 and the second brush 4043. At this time, the second sliding frame 404 slides back and forth, and drives the first brush 4042 to reciprocate through the second support frame 4041, so that the sorghum and impurities slide down along the gap between the first brush 4042 and the second brush 4043. In the process of the sorghum sliding down, the dust attached to the surface of the sorghum is swept by the first brush 4042 and the second brush 4043, thereby separating from the sorghum. The sorghum enters the shell 1 through the gap between the first brush 4042 and the second brush 4043, and falls on the flexible stretch cloth 403. Since the dust mixed in the sorghum is of small mass, the dust will be blown to the right by the impeller 4104, and finally blown to the waste discharge rack 101 and discharged to the outside. At the same time, the impurities in the sorghum contain straw fragments. Since the density of the crushed straw is one fifth of that of sorghum and the crushed straw is relatively flat, the crushed straw has a large wind receiving area and is easily blown by the rightward airflow. The crushed straw and dust are synchronously blown by the airflow to the waste discharge rack 101 and discharged to the outside. The dust and the crushed straw will gradually fall in the process of moving to the right. A small amount of dust and the crushed straw may fall on the dust sealing rack 102. Since the crushed straw and dust are light in weight, the crushed straw and dust move along the dust sealing rack 102 to the waste discharge rack 101 under the action of the airflow and are discharged to the outside, thereby avoiding the problem that the dust directly falls on the second sliding rack 404 and hinders the sliding of the first sliding rack 402. The sorghum and other heavier impurities (such as large stones) are less affected by the airflow due to their own mass, so they will not be blown to the waste discharge rack 101 by the airflow, thereby achieving the cleaning of the crushed straw and dust mixed in the sorghum. ;

[0028] When sorghum falls on the flexible stretch cloth 403, when the flexible stretch cloth 403 is relaxed, the sorghum, dust and impurities will slide down along the surface of the flexible stretch cloth 403 and gather in the middle. When the flexible stretch cloth 403 is gradually tightened, the center of the flexible stretch cloth 403 moves upward faster and faster, thereby driving the sorghum, dust and impurities on the flexible stretch cloth 403 to move upward. When the flexible stretch cloth 403 is completely tightened, the flexible stretch cloth 403 is affected by its own elasticity, and the speed of its center moving upward will become smaller and smaller. The sorghum, dust and impurities will move upward under the action of inertia. The sorghum is blown up by the friction with the air during the upward bouncing, and is blown by the rightward airflow, and finally discharged to the outside through the waste discharge rack 101, so as to achieve the preliminary cleaning of the dust attached to the surface of the sorghum. If the sorghum and impurities fall on the dust sealing rack 102, due to the large mass of the sorghum and impurities, the inclined surface of the dust sealing rack 102 will guide the sorghum and impurities to fall back to the upper surface of the flexible stretch cloth 403 by gravity, so as to prevent the waste of sorghum and the accumulation of impurities in the outer shell 1 and cause malfunctions.

[0029] In the process of sorghum and impurities being bounced up by the flexible stretch cloth 403, since the flexible stretch cloth 403 is tilted backward, the sorghum and impurities will also move backward in the process of being bounced up. Therefore, the sorghum and impurities will gradually approach the collection box 408 in the process of being bounced up by the flexible stretch cloth 403. It is worth noting that since the large stones in the impurities are heavier than the sorghum, according to the law of conservation of energy, under the premise of no external interference, the sum of the kinetic energy and the potential energy of the object is a certain value. Therefore, the distance that the large stone bounces up is much smaller than the sorghum, which makes the large stone move backward in the process of bouncing up and falling. The sorghum will always first come into contact with the flexible stretch cloth 403, and then gradually settle under the sorghum, so that the large stones will not affect the movement of the sorghum during the movement. Finally, the sorghum and impurities are moved to the collecting box 408 due to the influence of the flexible stretch cloth 403 tilting backward, and affected by the movement of the flexible stretch cloth 403, the large stones in the impurities will enter the collecting box 408 through the collecting groove of the collecting box 408, and be transported to the outside through the discharge pipe, so as to clean the large stones in the impurities, while the lighter sorghum will pass over the collecting box 408 and fall from the back of the collecting box 408 for further impurity removal.

[0030] When the sorghum is bounced up by the flexible stretch cloth 403, the sorghum will touch the rubber strip 409 due to the upward bouncing movement. Since the bottom of the rubber strip 409 is in an arc shape, when the sorghum touches the rubber strip 409, it will roll due to the elasticity and friction on the surface of the rubber strip 409, so that the soil blocks adhered to the surface of the sorghum will contact and rub against the rubber strip 409. The rubber strip 409 is squeezed and deformed by the sorghum to increase the contact area with the soil blocks. After being rubbed, the soil blocks will fall off the sorghum, thereby achieving the peeling of the soil blocks adhered to the surface of the sorghum. At the same time, the collision between the sorghums and the collision between the sorghums and the impurities can also cause the soil blocks adhered to the surface of the sorghum to fall off. Through the above actions, most of the broken straw, most of the dust, and all the large stones in the sorghum are removed, and the remaining impurities will pass over the collecting box 408 and fall from the back of the collecting box 408 as the sorghum bounces up. Example 2

[0031] On the basis of Example 1, Figure 2 and Figure 8-Figure 10 As shown, the screening mechanism 5 includes a first shaking frame 501, and second sliding grooves are provided on both sides of the outer shell 1. The first shaking frame 501 is slidably connected in the two second sliding grooves. The front end of the first shaking frame 501 is tilted downward and passes through the outer shell 1. The bottom of the first shaking frame 501 is rotatably connected to the crankshaft 407. When the crankshaft 407 moves, it can control the vibration of the first shaking frame 501. The first shaking frame 501 is clamped with a first screen 502. The screen aperture of the first screen 502 is larger than that of sorghum, and the first screen 502 is always located in the outer shell 1.

[0032] The screening mechanism 5 also includes a C-type frame 503, and a plurality of C-type frames 503 are linearly distributed and fixedly connected on the left and right sides of the first shaking frame 501. The plurality of C-type frames 503 are commonly fixedly connected to a second shaking frame 504 and a third shaking frame 506. The front end of the third shaking frame 506 is tilted downward and passes through the outer shell 1, and the third shaking frame 506 is located below the second shaking frame 504. A second screen 505 is clamped on the second shaking frame 504, and the screen aperture of the second screen 505 is smaller than that of sorghum. The rear ends of the second shaking frame 504 and the second screen 505 are tilted downward and in contact with the rear end top of the third shaking frame 506. A cleaning mechanism 6 is installed between the two C-type frames 503 in the middle, and the cleaning mechanism 6 is used to clean the surface of the sorghum.

[0033] The cleaning mechanism 6 includes a supporting beam 601, a first wedge block 604 and a second wedge block 605. The supporting beam 601 is fixedly connected between the two C-shaped frames 503 in the middle. A long brush 602 is slidably connected to the bottom of the supporting beam 601. A ball-head soft rod 6021 is linearly distributed and fixedly connected to the long brush 602, and a round-head column 603 is mirror-distributed and fixedly connected. The round-head column 603 is slidably connected to the C-shaped frame 503. The first wedge block 604 and the second wedge block 605 are fixedly connected in the outer shell 1. The first wedge block 604 and the second wedge block 605 have the same morphological characteristics and are in opposite directions. The mirror-distributed round-head columns 603 are in contact with the first wedge block 604 and the second wedge block 605 respectively.

[0034] The sorghum and the remaining impurities falling from the rear of the collecting box 408 will fall onto the first shaking frame 501. When the crankshaft 407 drives the flexible stretch cloth 403 to relax and tighten reciprocatingly, the rotation of the crankshaft 407 will drive the first shaking frame 501 to vibrate up and down, so that the sorghum and the remaining impurities move downward along the first shaking frame 501 through vibration. Among them, the sorghum and the impurities smaller than the sorghum will contact the first screen 502 during the downward movement, and fall onto the second screen 505 along the sieve holes of the first screen 502, while the impurities larger than the sorghum will continue to slide forward along the first shaking frame 501 and the first screen 502, thereby sliding out of the outer shell 1 and falling from the front end of the first shaking frame 501, thereby further cleaning the remaining large-sized impurities.

[0035] After the sorghum and the remaining small-sized impurities fall on the second sieve 505, the vibration of the first shaking frame 501 drives the second shaking frame 504 and the third shaking frame 506 to vibrate synchronously through the C-shaped frame 503, and the sorghum and the remaining small-sized impurities move downward along the second shaking frame 504 through the vibration. Among them, impurities such as stones and insect eggs that are smaller than the sorghum will fall on the third shaking frame 506 along the sieve holes of the second sieve 505 during the downward movement, and slide forward with the vibration of the third shaking frame 506, and the stones and Impurities such as insect eggs will slide out of the shell 1 and fall from the front end of the third shaking frame 506, thereby cleaning up small-sized impurities, and the sorghum will continue to slide backward along the second screen 505 and fall from the rear end of the second screen 505. If the staff needs to screen different varieties of sorghum, they only need to push the first screen 502 and the second screen 505 upwards, and the first screen 502 and the second screen 505 will respectively detach from the first shaking frame 501 and the second shaking frame 504, thereby improving the applicability and ease of use of the device.

[0036] As the sorghum continues to slide backward along the second screen 505, the C-shaped frame 503 drives the long brush 602 to vibrate up and down through the supporting beam 601, and the long brush 602 vibrates up and down to drive the round head column 603 to move synchronously. The round head column 603 is guided by the inclined surfaces of the first wedge block 604 and the second wedge block 605 during the movement, so that the round head column 603 drives the long brush 602 to slide back and forth along the supporting beam 601, and drives the ball head soft rod 6021 to move synchronously. The sorghum surface is knocked during the process to break the soil remaining on the sorghum surface into dust. The long brush 602 reciprocates to clean the sorghum surface, thereby removing the dust adhering to the sorghum surface, and further cleaning the dust adhering to the sorghum surface. The dust will fall along the sieve holes of the second sieve 505 onto the third shaking frame 506, and slide downward with the vibration of the third shaking frame 506, thereby sliding out of the outer shell 1. At this time, all impurities in the sorghum are removed, and the sorghum will fall from the rear end of the second sieve 505 and be further screened. Example 3

[0037] On the basis of Example 2, Figure 1 , Fig. 9 and Fig.11 As shown, it also includes a discharging mechanism 7, which is installed at the bottom of the shell 1. The discharging mechanism 7 includes a screw 701, and the screw 701 is threadedly connected to the rear side of the shell 1. One end of the screw 701 is fixedly connected to a knob 702, and the other end is rotatably connected to a rotating frame 703. One end of the rotating frame 703 is rotatably connected to a spring plate 704. A spring is connected between the spring plate 704 and the shell 1, and the spring is always in a stretched state. The left and right sides of the spring plate 704 are slidably connected to the shell 1, and the top of the spring plate 704 is in sliding contact with the shell 1.

[0038] The discharging mechanism 7 also includes a discharging rack 705, which is fixedly connected between the first chassis 103 and the second chassis 104. A partition plate 706 is fixedly connected to the top of the discharging rack 705 in a linear distribution. The partition plate 706 is fixedly connected to the outer shell 1, and the partition plate 706 is used to separate the shriveled sorghum from the full sorghum.

[0039] When the sorghum falls from the rear end of the second screen 505, it collides with the spring plate 704. Due to the law of energy conservation, the potential energy of the sorghum does not change significantly at the moment of collision with the spring plate 704. Therefore, the sorghum rebounds on the upper surface of the spring plate 704, thereby making a parabolic motion forward. It is worth noting that a certain amount of energy will be lost in the process of the sorghum rebounding to convert the speed direction. Since the full sorghum has a higher water content, the full sorghum has better elasticity, so that the full sorghum can fly farther when it rebounds. The shriveled sorghum has a significantly lower water content than the full sorghum, which makes the surface of the shriveled sorghum brittle and hard, so that the shriveled sorghum loses more energy in the process of flying, and the shriveled sorghum cannot fly farther. In addition, the full sorghum has a round surface and better wind resistance, while the shriveled sorghum has an uneven surface and worse wind resistance than the full sorghum. As a result, when the full sorghum falls on the discharge rack 705, its position is further forward than the shriveled sorghum, and the partition plate 706 separates the shriveled sorghum from the full sorghum to prevent The full and shriveled sorghums screened out are mixed to achieve the full and shriveled screening of the sorghums. If it is necessary to screen the fullness and shriveling of different varieties of sorghums, or to adjust the fullness and shriveling judgment standard of the same variety of sorghums, the staff can adjust the position of the screw rod 701 by turning the knob 702. The screw rod 701 moves through the rotating frame 703 to drive the spring plate 704 to move synchronously. Since the spring is always in a contracted state, the contracted spring makes the top of the spring plate 704 always fit with the shell 1. Therefore, when the screw rod 701 moves, the spring plate 704 will be adjusted. The rotation angle of 704 is used to control the flight direction of the sorghum when it rebounds. If the screw rod 701 moves forward, the screw rod 701 will push the spring plate 704 to rotate clockwise, and the top of the spring plate 704 slides downward along the shell 1, and the spring is stretched. If the screw rod 701 moves backward, the screw rod 701 will pull the spring plate 704 to rotate counterclockwise, and the top of the spring plate 704 slides upward along the shell 1, and the spring is shortened. The staff can collect the screened sorghum by placing a collection bag on the left side of the discharging rack 705. At this time, the device completes the whole process of sorghum screening.

[0040] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A sorghum processing and screening device, comprising a housing (1), a waste material discharge frame (101) being fixedly connected to the right side of the housing (1), a dust sealing frame (102) being fixedly connected inside the housing (1), the dust sealing frame (102) being in an inclined state, and the left and right sides of the top being inclined toward the middle, a first chassis (103) and a second chassis (104) being fixedly connected to the bottom of the housing (1), a material pouring chute (2) being fixedly connected to the top of the housing (1), and a first motor (3) being installed on the right side, characterized in that: It also includes a specific gravity mechanism (4), the specific gravity mechanism (4) is installed inside the housing (1), and the bottom of the specific gravity mechanism (4) is connected to a screening mechanism (5); The specific gravity mechanism (4) comprises a first support frame (401) and a blast unit (410); the first support frame (401) is fixedly connected to the interior of the housing (1) in a mirror-image arrangement; the top of the first support frame (401) is fixedly connected to the dust-sealing frame (102); one side of the first support frame (401) is slidably connected to the first sliding frame (402); the first sliding frames (402) in the mirror-image arrangement are connected together with a flexible stretch cloth (403) via bolts; the top and front end of the flexible stretch cloth (403) are in contact with the dust-sealing frame (102); the bottom of the first support frames (401) in the mirror-image arrangement are slidably connected together with A second sliding frame (404), the second sliding frame (404) is provided with a first sliding groove in a mirror-image distribution on the top, a sliding column (405) is slidably connected in the first sliding groove, the sliding column (405) is fixedly connected to the first sliding frame (402), a rotating rod (406) is rotatably connected to the rear side of the second sliding frame (404) in a mirror-image distribution, the mirror-image distribution rotating rods (406) are rotatably connected to a crankshaft (407), the crankshaft (407) is rotatably connected to the housing (1), and one end is fixedly connected to the output shaft of the first motor (3), and a blower unit (410) is linearly installed on the left side of the housing (1).

2. The sorghum processing and screening device according to claim 1, characterized in that: The specific gravity mechanism (4) further comprises a second support frame (4041), the front end of the second sliding frame (404) is fixedly connected to the second support frame (4041), the second support frame (4041) is slidably connected to the dust sealing frame (102), the top of the second support frame (4041) is fixedly connected to the first brush (4042) in a mirror-image distribution, and the top of the interior of the housing (1) is fixedly connected to the second brush (4043) in a mirror-image distribution.

3. The sorghum processing and screening device according to claim 2, characterized in that: The specific gravity mechanism (4) further comprises a collecting box (408), the top of the mirror-distributed first support frame (401) is fixedly connected with the collecting box (408), the front side of the collecting box (408) is in contact with the flexible stretch cloth (403) and is provided with a collecting groove, the front side of the collecting box (408) is fixedly connected with the dust sealing frame (102), and the bottom of the collecting box (408) is connected with a discharge pipe, one end of which passes through the outer shell (1) and is connected with the outside.

4. The sorghum processing and screening device according to claim 3, characterized in that: The specific gravity mechanism (4) further comprises a rubber strip (409), and the rubber strip (409) is linearly distributed and fixedly connected to the top end of the inner portion of the outer shell (1).

5. The sorghum processing and screening device according to claim 4, characterized in that: The blower unit (410) comprises a ventilation duct (4101), the housing (1) is linearly distributed and connected with the ventilation duct (4101), a ventilation mounting frame (4102) is fixedly connected inside the ventilation duct (4101), a second motor (4103) is mounted on one side of the ventilation mounting frame (4102), an output shaft of the second motor (4103) passes through the ventilation mounting frame (4102) and is fixedly connected to an impeller (4104), a plurality of support columns (4105) are circumferentially distributed and fixedly connected to one side of the ventilation duct (4101), and a protective plate (4106) is fixedly connected to the plurality of support columns (4105) in common.

6. The sorghum processing and screening device according to claim 1, characterized in that: The screening mechanism (5) comprises a first shaking frame (501), second sliding grooves are provided on both left and right sides of the housing (1), the first shaking frame (501) is slidably connected in the two second sliding grooves, the front end of the first shaking frame (501) is tilted downward and passes through the housing (1), the bottom of the first shaking frame (501) is rotatably connected to the crankshaft (407), and the first screen (502) is clamped on the first shaking frame (501).

7. The sorghum processing and screening device according to claim 6, characterized in that: The screening mechanism (5) further comprises a C-shaped frame (503), a plurality of C-shaped frames (503) are linearly distributed and fixedly connected to the left and right sides of the first shaking frame (501), a second shaking frame (504) and a third shaking frame (506) are fixedly connected to the plurality of C-shaped frames (503), a front end of the third shaking frame (506) is tilted downward and passes through the housing (1), and the third shaking frame (506) is located below the second shaking frame (504), a second screen (505) is clamped on the second shaking frame (504), the rear ends of the second shaking frame (504) and the second screen (505) are tilted downward and contact the top of the rear end of the third shaking frame (506), and a cleaning mechanism (6) is installed between the two C-shaped frames (503) located in the middle.

8. The sorghum processing and screening device according to claim 7, characterized in that: The cleaning mechanism (6) comprises a supporting crossbeam (601), a first wedge-shaped block (604) and a second wedge-shaped block (605); the supporting crossbeam (601) is fixedly connected between two C-shaped frames (503) in the middle; a long brush (602) is slidably connected to the bottom of the supporting crossbeam (601); a ball-headed soft rod (6021) is linearly fixedly connected to the long brush (602) and a round-headed column (603) is mirror-distributed and fixedly connected; the round-headed column (603) is slidably connected to the C-shaped frame (503); the first wedge-shaped block (604) and the second wedge-shaped block (605) are fixedly connected to the inner part of the housing (1); the mirror-distributed round-headed columns (603) are in contact with the first wedge-shaped block (604) and the second wedge-shaped block (605), respectively.

9. The sorghum processing and screening device according to claim 1, characterized in that: The invention also comprises a discharging mechanism (7), wherein the discharging mechanism (7) is installed at the bottom of the housing (1), and the discharging mechanism (7) comprises a screw rod (701), the screw rod (701) is threadedly connected to the rear side of the housing (1), one end of the screw rod (701) is fixedly connected to a knob (702), and the other end is rotatably connected to a rotating frame (703), one end of the rotating frame (703) is rotatably connected to a spring plate (704), a spring is connected between the spring plate (704) and the housing (1), the left and right sides of the spring plate (704) are slidably connected to the housing (1), and the top of the spring plate (704) is in slidable contact with the housing (1).

10. The sorghum processing and screening device according to claim 9, characterized in that: The discharging mechanism (7) further comprises a discharging frame (705), the discharging frame (705) being fixedly connected between the first chassis (103) and the second chassis (104), a partition plate (706) being fixedly connected linearly to the top of the discharging frame (705), and the partition plate (706) being fixedly connected to the outer shell (1).

Images