An impurity removal machine for shelled cereal grains and its usage method

Abstract

The present invention is applicable to the field of screening technology, and provides an impurity removal machine for dehulled cereal grains and a using method. The impurity removal machine for dehulled cereal grains includes a machine case, and a feed inlet and a discharge outlet are respectively arranged on the machine case; a cleaning mechanism for filtering impurities adhered to the surface of cereal grains, the cleaning mechanism includes a diversion block, a shunt block, a separation component and an adsorption component; and a screening component for performing secondary treatment on the cereal grains processed by the cleaning mechanism, the screening component is arranged in the machine case, and the screening component is located below the cleaning mechanism. Through the combined setting of the cleaning mechanism and the screening component, the present invention avoids the problem that in the existing impurity removal machine during use, it is difficult to effectively remove impurities such as broken shells wrapped on cereal grains, resulting in poor screening effect and seriously affecting the production quality of cereal grains.

Description

Technical Field

[0001] The present invention relates to the technical field of screening, and specifically to an impurity removal machine for shelled cereal grains and a using method thereof. Background Art

[0002] During the cereal processing, shelled cereal grains (such as rice, wheat, corn, etc.) usually mix with various impurities, including broken shells, dust, sand, straws, and metal fragments. These impurities not only affect the appearance and quality of the cereals, but also may cause abrasion to subsequent processing equipment and even endanger the health of consumers. Therefore, before the cereals enter packaging or further processing, it is necessary to effectively remove the impurities.

[0003] When the existing impurity removal machines are in use, it is difficult to effectively remove impurities such as broken shells wrapped on the cereal grains, resulting in poor screening effect and seriously affecting the production quality of the cereal grains. Therefore, in view of the above current situation, there is an urgent need to provide an impurity removal machine for shelled cereal grains and a using method thereof to overcome the deficiencies in current practical applications. Summary of the Invention

[0004] The purpose of the present invention is to provide an impurity removal machine for shelled cereal grains and a using method thereof, aiming to solve the problems in the above background art.

[0005] The present invention is realized as follows. An impurity removal machine for shelled cereal grains includes:

[0006] A machine case, on which a feed inlet and a discharge outlet are respectively arranged;

[0007] A cleaning mechanism for filtering impurities adhered to the surface of the cereal grains. The cleaning mechanism includes a drainage block, a diversion block, a separation component, and an adsorption component. Two drainage blocks are symmetrically arranged in the machine case, and an arc-shaped cavity is formed between the two drainage blocks. The separation component is arranged in the arc-shaped cavity between the two drainage blocks, and the top and bottom of the two drainage blocks are both inclined structures. One set of adsorption components is arranged at the bottom of each of the two drainage blocks. The diversion block is fixedly installed in the machine case, and air injection holes for blowing air towards the adsorption component side are formed on the diversion block. Wherein a cavity communicating with the air injection holes is provided in the diversion block, and a second conduit communicating with the cavity in the diversion block is arranged on the machine case. During use, the second conduit is connected to an external blower;

[0008] And a screening component for secondary treatment of the cereal grains processed by the cleaning mechanism. The screening component is arranged in the machine case and is located below the cleaning mechanism.

[0009] As a further solution of the present invention: the shunt block is of a triangular structure, and there is a gap for cereal grains to pass through between the shunt block and the diversion block.

[0010] As a further solution of the present invention: the separation assembly includes:

[0011] A first support shaft rotatably installed in the chassis, and a first motor for driving the first support shaft to rotate is arranged in the side wall of the chassis;

[0012] A baffle plate, two baffle plates are symmetrically arranged on the first support shaft, and the baffle plate is rotatably matched with the diversion block;

[0013] And elastic sheets, multiple groups of elastic sheets are fixedly installed on the first support shaft.

[0014] As a further solution of the present invention: the separation assembly further includes a stop bar for deforming the elastic sheet, the stop bar is fixedly installed on the diversion block, and there are two stop bars, one stop bar is fixed on one side of one diversion block close to the feed port, and the other stop bar is fixed on one side of the other diversion block close to the shunt block.

[0015] As a further solution of the present invention: the adsorption assembly includes:

[0016] Support rollers, the support rollers are rotatably installed in the diversion block, and multiple groups of support rollers are symmetrically arranged in the diversion block, and a second motor for driving one group of support rollers to rotate is arranged in the side wall of the diversion block;

[0017] An adsorption belt arranged on the support rollers, the adsorption belt has an air guide cavity, and multiple support air bags are arranged in the air guide cavity for support;

[0018] Adsorption holes opened on the outer surface of the adsorption belt, and the adsorption holes are communicated with the air guide cavity in the adsorption belt;

[0019] And a first conduit arranged on the chassis, and two telescopic tubes communicated with the air guide cavity in the adsorption belt are arranged on the first conduit.

[0020] As a further solution of the present invention: a cleaning assembly for treating impurities adsorbed on the adsorption belt is further arranged in the diversion block.

[0021] As a further solution of the present invention: the cleaning assembly includes:

[0022] A pressing plate, and a second telescopic member for driving the pressing plate to move is arranged in the diversion block;

[0023] Elastic telescopic rods, multiple groups of elastic telescopic rods are fixedly installed on the diversion block, and a pressing frame is arranged on the telescopic end of the elastic telescopic rod;

[0024] and a first inclined surface formed on the pressing frame. A driving rod is fixedly installed on the pressing plate, and the end of the driving rod has a second inclined surface for cooperating with the first inclined surface.

[0025] As a further solution of the present invention: The cleaning assembly further includes:

[0026] A first telescopic member fixedly installed in the drainage block, and a lifting plate is fixedly installed on the telescopic end of the first telescopic member;

[0027] Support rods, two groups of support rods are symmetrically arranged on the lifting plate, and the interior of the support rods is a hollow structure;

[0028] A cleaning roller for cleaning the surface of the adsorption belt, the cleaning roller is rotatably installed between the two groups of support rods, and bristles are arranged on the surface of the cleaning roller;

[0029] A gear, the gear is connected to the support rod through a rotating shaft, and the rotating shaft is connected to the cleaning roller through a linkage member;

[0030] And a rack meshing with the gear, the rack is fixedly installed in the drainage block.

[0031] As a further solution of the present invention: The screening assembly includes:

[0032] A filter plate, the filter plate is rotatably connected to the machine case through a second support shaft, and a motor three for driving the second support shaft to rotate is arranged in the side wall of the machine case;

[0033] A surrounding plate fixedly installed in the machine case, one group of surrounding plates is arranged on each side of the filter plate, and the filter plate is in sliding contact with the surrounding plate;

[0034] At least one set of tooth-shaped scrapers, the tooth-shaped scrapers are located above the filter plate, and elastic pressing strips for elastically pressing the filter plate are arranged on the surrounding plate.

[0035] A method for using an impurity removing machine for shelled grain particles, which is applied to the above-mentioned impurity removing machine for shelled grain particles. The method includes the following steps:

[0036] Step 1: Add the shelled grain particles to the machine case in batches through the feed port. The drainage block can guide the grain particles into the working area of the separation component, and the separation component can disperse the grain particles and the impurities adsorbed on the grain particles;

[0037] Step 2: The grain particles processed by the separation component fall above the diversion block under the action of gravity. The diversion block can disperse the grain particles to both sides. When the grain particles flow above the diversion block, the air holes can make the air flow towards the adsorption component side;

[0038] Step 3: The adsorption component can suck out the impurities mixed in the cereal grains, and the remaining cereal grains will fall into the working area of the screening component under the action of their own gravity;

[0039] Step 4: Start the screening component. The screening component can perform secondary filtration on the cereal grains. The filtered cereal grains and the remaining impurities are discharged in batches through the discharge port, completing the impurity removal work.

[0040] Compared with the prior art, the beneficial effects of the present invention are as follows: The shelled cereal grains are added to the machine case in batches through the feed port. The diversion block can guide the cereal grains into the working area of the separation component, and the separation component can disperse the cereal grains and the impurities adsorbed on the cereal grains; After being processed by the separation component, the cereal grains fall above the diversion block under the action of gravity. The diversion block can disperse the cereal grains to both sides. When the cereal grains flow above the diversion block, the air holes can make the air flow towards the adsorption component side; The adsorption component can suck out the impurities mixed in the cereal grains, and the remaining cereal grains will fall into the working area of the screening component under the action of their own gravity; Start the screening component. The screening component can perform secondary filtration on the cereal grains. The filtered cereal grains and the remaining impurities are discharged in batches through the discharge port, completing the impurity removal work;

[0041] Through the cooperative setting of the cleaning mechanism and the screening component, the present invention avoids the problem that in the prior art, when using an impurity removal machine, it is difficult to effectively remove impurities such as broken shells wrapped on the cereal grains, resulting in poor screening effect and seriously affecting the production quality of the cereal grains. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0043] Figure 1 It is a schematic structural diagram of the present invention.

[0044] Figure 2 is Figure 1 the rear view structural diagram of

[0045] Figure 3 is Figure 1 the internal structural diagram of

[0046] Figure 4 It is a schematic structural diagram of the screening component in the present invention.

[0047] Figure 5 This is a schematic structural diagram of the cleaning mechanism in the present invention.

[0048] Figure 6 This is a schematic structural diagram of the cleaning component in the present invention.

[0049] Figure 7 This is a partial schematic structural diagram of the truncating component in the present invention.

[0050] Figure 8 is Figure 7 an enlarged schematic structural diagram of part A in

[0051] Figure 9 This is a schematic structural diagram of the adsorption component in the present invention.

[0052] Figure 10 is Figure 9 a sectional schematic structural diagram of part B in

[0053] In the drawings: 1 - chassis, 2 - feed inlet, 3 - discharge outlet, 4 - conduit one, 5 - conduit two, 6 - drainage block, 7 - baffle, 8 - support shaft one, 9 - shunt block, 10 - air injection hole, 11 - elastic pressing strip, 12 - toothed scraping plate, 13 - enclosing plate, 14 - filter plate, 15 - support shaft two, 16 - chip discharge port, 17 - elastic sheet, 18 - stop bar, 19 - telescopic member one, 20 - lifting plate, 21 - rack, 22 - pressing frame, 23 - support roller, 24 - adsorption belt, 25 - telescopic tube, 26 - telescopic member two, 27 - pressing plate, 28 - driving rod, 29 - gear, 30 - support rod, 31 - cleaning roller, 32 - first inclined surface, 33 - elastic telescopic rod, 34 - support airbag, 35 - adsorption hole. Detailed implementation manners

[0054] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0055] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0056] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] The following further explains and illustrates the present invention in combination with specific embodiments.

[0058] Please refer to Figures 1 - 10 , an impurity removing machine for shelled cereal grains provided by an embodiment of the present invention, includes:

[0059] A chassis 1, on which a feed inlet 2 and a discharge outlet 3 are respectively arranged;

[0060] A cleaning mechanism for filtering impurities adhered to the surface of cereal grains, the cleaning mechanism includes a diversion block 6, a shunt block 9, a separation component, and an adsorption component. Two diversion blocks 6 are symmetrically arranged in the chassis 1, and an arc-shaped cavity is formed between the two diversion blocks 6. The separation component is arranged in the arc-shaped cavity between the two diversion blocks 6, and the top and bottom of the two diversion blocks 6 are both inclined structures. A set of adsorption components is arranged at the bottom of each of the two diversion blocks 6. The shunt block 9 is fixedly installed in the chassis 1, and an air injection hole 10 for blowing air to the adsorption component side is opened on the shunt block 9; wherein a cavity communicating with the air injection hole 10 is provided in the shunt block 9, and a second conduit 5 communicating with the cavity in the shunt block 9 is arranged on the chassis 1. During use, the second conduit 5 is communicated with an external fan;

[0061] And a screening component for secondary treatment of the cereal grains processed by the cleaning mechanism, the screening component is arranged in the chassis 1 and is located below the cleaning mechanism.

[0062] In an embodiment of the present invention, the impurity removal machine for dehulled cereal grains is preferably applicable to the processing of rice, wheat, etc.; the dehulled cereal grains are added batch by batch into the machine case 1 through the feed inlet 2, and the drainage block 6 can guide the cereal grains into the working area of the separation component, and the separation component is used to disperse the cereal grains and the impurities adsorbed on the cereal grains; after being processed by the separation component, the cereal grains fall above the diversion block 9 under the action of gravity, and the diversion block 9 can disperse the cereal grains to both sides. When the cereal grains flow above the diversion block 9, the air jet holes 10 can make the air flow towards the adsorption component side; the adsorption component can suck out the impurities mixed in the cereal grains, and the remaining cereal grains will fall into the working area of the screening component under the action of their own gravity; start the screening component, and the screening component can perform secondary filtration on the cereal grains, and the filtered cereal grains and the remaining impurities are discharged batch by batch through the discharge port 3 to complete the impurity removal work; compared with the prior art, through the cooperative setting of the cleaning mechanism and the screening component, the present invention avoids the problem that in the existing impurity removal machine, it is difficult to effectively remove impurities such as broken husks wrapped on the cereal grains during use, resulting in poor screening effect and seriously affecting the production quality of the cereal grains.

[0063] In an embodiment of the present invention, please refer to Figures 1 - 10 , the diversion block 9 is of a triangular structure, and there is a gap for the cereal grains to pass through between the diversion block 9 and the drainage block 6;

[0064] The separation component includes:

[0065] The support shaft one 8 rotatably installed in the machine case 1, and a motor one for driving the support shaft one 8 to rotate is arranged in the side wall of the machine case 1;

[0066] The baffle 7, two baffles 7 are symmetrically arranged on the support shaft one 8, and the baffle 7 is rotationally matched with the drainage block 6;

[0067] And the elastic sheet 17, multiple groups of elastic sheets 17 are fixedly installed on the support shaft one 8;

[0068] The separation component further includes a stop bar 18 for deforming the elastic sheet 17, the stop bar 18 is fixedly installed on the drainage block 6, and two stop bars 18 are provided, one stop bar 18 is fixed on one side of one drainage block 6 close to the feed inlet 2, and the other stop bar 18 is fixed on one side of the other drainage block 6 close to the diversion block 9;

[0069] The adsorption component includes:

[0070] Support roller 23, the support roller 23 is rotatably installed in the drainage block 6, and multiple groups of support rollers 23 are symmetrically arranged in the drainage block 6. A second motor for driving one group of support rollers 23 to rotate is arranged in the side wall of the drainage block 6;

[0071] An adsorption belt 24 arranged on the support roller 23, the adsorption belt 24 has an air guide cavity inside, and multiple support air bags 34 are arranged in the air guide cavity for support;

[0072] Adsorption holes 35 opened on the outer surface of the adsorption belt 24, the adsorption holes 35 are communicated with the air guide cavity inside the adsorption belt 24;

[0073] And a first conduit 4 arranged on the chassis 1, two telescopic tubes 25 communicated with the air guide cavity inside the adsorption belt 24 are arranged on the first conduit 4; wherein circular holes for rotatably connecting with the first conduit 4 are opened on both the drainage block 6 and the chassis 1;

[0074] A cleaning assembly for treating impurities adsorbed on the adsorption belt 24 is further arranged in the drainage block 6;

[0075] The cleaning assembly includes:

[0076] A pressing plate 27, a second telescopic member 26 for driving the pressing plate 27 to move is arranged in the drainage block 6;

[0077] Elastic telescopic rods 33, multiple groups of elastic telescopic rods 33 are fixedly installed on the drainage block 6, and a pressing frame 22 is arranged on the telescopic end of the elastic telescopic rod 33; wherein the elastic telescopic rod 33 is composed of two slidably connected rods, and a spring for pulling the rod of the telescopic end to move away from the support roller 23 is arranged in the rod fixed on the drainage block 6;

[0078] And a first inclined surface 32 opened on the pressing frame 22, a driving rod 28 is further fixedly installed on the pressing plate 27, and a second inclined surface for cooperating with the first inclined surface 32 is arranged at the end of the driving rod 28;

[0079] The cleaning assembly further includes:

[0080] A first telescopic member 19 fixedly installed in the drainage block 6, a lifting plate 20 is fixedly installed on the telescopic end of the first telescopic member 19; wherein both the lifting plate 20 and the above-mentioned second telescopic member 26 can adopt electric telescopic rods;

[0081] Support rods 30, two groups of support rods 30 are symmetrically arranged on the lifting plate 20, and the inside of the support rods 30 is a hollow structure;

[0082] A cleaning roller 31 for cleaning the surface of the adsorption belt 24. The cleaning roller 31 is rotatably installed between two groups of support rods 30, and bristles are provided on the surface of the cleaning roller 31.

[0083] A gear 29, which is connected to the support rod 30 through a rotating shaft, and the rotating shaft is connected to the cleaning roller 31 through a linkage. Among them, the linkage can adopt a combined structure of a pulley and a transmission belt.

[0084] And a rack 21 meshing with the gear 29, and the rack 21 is fixedly installed in the drainage block 6.

[0085] In this embodiment, the support rollers 23 are arranged in a right triangle structure in the drainage block 6, and there is a gap between each group of support rollers 23, facilitating the telescopic tube 25 to move along with the adsorption belt 24. By using the first motor, the support shaft one 8 can be driven to rotate. The support shaft one 8 can drive the elastic piece 17 to rotate clockwise (the clockwise direction refers to the appendix Figure 5 ), enabling the elastic piece 17 to impact the cereal grains. Due to the blocking effect of the stop bar 18, the elastic piece 17 can deform when rotating to the top and bottom, further improving the impact effect and enabling the impurities to be fully separated from the cereal grains. When in use, the first conduit 4 is connected to an external suction pump, generating negative pressure inside the adsorption belt 24, facilitating the adsorption of small-volume impurities such as broken husks in the cereal grains to the outer surface of the adsorption belt 24. Among them, the support rollers 23 rotate regularly, facilitating the movement of the segment of the adsorption belt 24 adsorbed with impurities into the drainage block 6. During cleaning, the second telescopic member 26 drives the pressing plate 27 to move upward, causing the pressing plate 27 to press on the lower support roller 23. At the same time, when the driving rod 28 moves along with the pressing plate 27, the driving rod 28 can be used to push the pressing frame 22 to translate, causing the pressing frame 22 to press on the upper support roller 23. By squeezing the adsorption belt 24 with the pressing plate 27 and the pressing frame 22, the segment of the adsorption belt 24 adsorbed with impurities is separated from other segments. At this time, there will be no suction force in this segment, and the impurities will fall under the action of gravity and be discharged through the chip removal port 16. There is an opening on the side wall of the chassis 1 connected to the chip removal port 16. The first telescopic member 19 drives the lifting plate 20 and the support rod 30 to move downward, and in cooperation with the meshing of the rack 21 and the gear 29, the cleaning roller 31 can be rotated, facilitating the removal of impurities on the surface of the adsorption belt 24 and improving the cleaning effect. By driving the movement of the adsorption belt 24, the support rollers 23 can effectively remove the impurities adsorbed on the adsorption belt 24 without stopping the machine, thereby improving the production efficiency.

[0086] In an embodiment of the present invention, please refer to Figures 1 - 10 , the screening assembly includes:

[0087] A filter plate 14, the filter plate 14 is rotatably connected to the chassis 1 through a second support shaft 15, and a third motor for driving the second support shaft 15 to rotate is arranged inside the side wall of the chassis 1;

[0088] A surrounding plate 13 fixedly installed inside the chassis 1, one set of the surrounding plates 13 is arranged on each side of the filter plate 14, and the filter plate 14 is in sliding contact with the surrounding plate 13; wherein the width of the surrounding plate 13 on the side close to the discharge port 3 is smaller than the width of the other set of surrounding plates 13;

[0089] At least one set of toothed scrapers 12, the toothed scrapers 12 are located above the filter plate 14, and elastic pressing strips 11 for elastically pressing the filter plate 14 are arranged on the surrounding plate 13.

[0090] In this embodiment, the third motor can drive the filter plate 14 to rotate reciprocally at a small angle around the second support shaft 15 (the filter plate 14 does not separate from the inner wall of the surrounding plate 13 during the rotation process), and during the rotation process, both sides of the filter plate 14 are closely attached to the inner wall of the surrounding plate 13. The reciprocating filter plate 14 enables the grain particles to quickly pass through the filter holes on the filter plate 14. The filtered grain particles will be discharged from the discharge port 3. After the filtering is completed, the third motor drives the filter plate 14 to rotate through the second support shaft 15, so that the filter plate 14 is separated from the bottom of the surrounding plate 13 on the side close to the discharge port 3, facilitating the discharge of the impurities on the filter plate 14 through the discharge port 3; and during the reciprocating movement of the filter plate 14, under the pressing action of the elastic pressing strip 11, the toothed scraper 12 will reciprocally move along the surface of the filter plate 14, facilitating the acceleration of the filtering speed.

[0091] Please refer to Figures 1 - 10 , a method for using an impurity removal machine for shelled grain particles provided by an embodiment of the present invention, which is applied to the impurity removal machine for shelled grain particles as described above. The method includes the following steps:

[0092] Step 1: Add the shelled grain particles into the chassis 1 in batches through the feed port 2. The diversion block 6 can guide the grain particles into the working area of the separation component, and the separation component is used to disperse the grain particles and the impurities adsorbed on the grain particles;

[0093] Step 2: After being processed by the separation component, the grain particles fall above the diversion block 9 under the action of gravity. The diversion block 9 can disperse the grain particles to both sides. When the grain particles flow above the diversion block 9, the air holes 10 can make the air flow towards the adsorption component side;

[0094] Step 3: The adsorption component is used to suck out the impurities mixed in the grain particles, and the remaining grain particles will fall into the working area of the screening component under the action of their own gravity;

[0095] Step 4: Start the screening component. The screening component can be used to perform secondary filtration on the cereal grains. The filtered cereal grains and the remaining impurities are discharged in batches through the discharge port 3, completing the impurity removal work.

[0096] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An impurity removal machine for dehulled cereal grains, comprising a chassis, wherein a feed inlet and a discharge outlet are respectively arranged on the chassis, and it is characterized in that, It also includes: A cleaning mechanism for filtering impurities adhering to the surface of cereal grains. The cleaning mechanism includes a drainage block, a diversion block, a separation component, and an adsorption component. There are two drainage blocks symmetrically arranged in the chassis, and an arc-shaped cavity is formed between the two drainage blocks. The separation component is arranged in the arc-shaped cavity between the two drainage blocks, and the top and bottom of the two drainage blocks are both inclined structures. One set of adsorption components is arranged at the bottom of each of the two drainage blocks. The diversion block is fixedly installed in the chassis, and air spraying holes for blowing air towards the adsorption component side are formed on the diversion block. Wherein, a cavity communicating with the air spraying holes is provided in the diversion block, and a second conduit communicating with the cavity in the diversion block is arranged on the chassis. During use, the second conduit is connected to an external fan. And a screening component for secondary treatment of the cereal grains processed by the cleaning mechanism. The screening component is arranged in the chassis and is located below the cleaning mechanism. The adsorption component includes: Support rollers, which are rotatably installed in the drainage block, and multiple groups of support rollers are symmetrically arranged in the drainage block. A second motor for driving one group of support rollers to rotate is arranged in the side wall of the drainage block. An adsorption belt arranged on the support rollers. The adsorption belt has an air guiding cavity inside, and multiple support air bags are arranged in the air guiding cavity for support. Adsorption holes opened on the outer surface of the adsorption belt, and the adsorption holes communicate with the air guiding cavity inside the adsorption belt. And a first conduit arranged on the chassis. Two telescopic tubes communicating with the air guiding cavity inside the adsorption belt are arranged on the first conduit. A cleaning component for treating the impurities adsorbed on the adsorption belt is also arranged in the drainage block. The cleaning component includes: A pressing plate, and a second telescopic member for driving the pressing plate to move is arranged in the drainage block. Elastic telescopic rods, multiple groups of elastic telescopic rods are fixedly installed on the drainage block, and a pressing frame is arranged at the telescopic end of the elastic telescopic rods. And a first inclined surface opened on the pressing frame. A driving rod is also fixedly installed on the pressing plate, and a second inclined surface for cooperating with the first inclined surface is arranged at the end of the driving rod. By squeezing the adsorption belt with the pressing plate and the pressing frame, the segment of the adsorption belt adsorbed with impurities is separated from other segments. At this time, there will be no suction force in this segment, and the impurities will fall under the action of gravity.

2. The impurity removing machine for shelled cereal grains according to claim 1, characterized in that, The diversion block is of a triangular structure, and there is a gap for cereal grains to pass through between the diversion block and the drainage block.

3. The impurity removal machine for dehulled cereal grains according to claim 1, characterized in that, The separation component includes: A first support shaft rotatably installed in the chassis, and a first motor for driving the first support shaft to rotate is arranged in the side wall of the chassis. Baffles, two baffles are symmetrically arranged on the first support shaft, and the baffles are rotatably matched with the drainage block. And elastic sheets, multiple groups of elastic sheets are fixedly installed on the first support shaft.

4. The impurity removing machine for hulled cereal grains according to claim 3, characterized in that, The separation component further includes a stop bar for deforming the elastic sheet. The stop bar is fixedly installed on the drainage block, and there are two stop bars. One stop bar is fixed on one side of one drainage block close to the feed inlet, and the other stop bar is fixed on one side of the other drainage block close to the diversion block.

5. The impurity removing machine for shelled cereal grains according to claim 1, wherein, The cleaning component further includes: A first telescopic member fixedly installed in the drainage block, and a lifting plate is fixedly installed on the telescopic end of the first telescopic member; Support rods, two groups of support rods are symmetrically arranged on the lifting plate, and the interior of the support rods is a hollow structure; A cleaning roller for cleaning the surface of the adsorption belt, the cleaning roller is rotatably installed between the two groups of support rods, and bristles are arranged on the surface of the cleaning roller; A gear, the gear is connected to the support rod through a rotating shaft, and the rotating shaft is connected to the cleaning roller through a linkage member; And a rack meshing with the gear, the rack is fixedly installed in the drainage block.

6. The impurity removing machine for shelled cereal grains according to claim 1, characterized in that, The screening assembly includes: A filter plate, the filter plate is rotatably connected to the machine box through a second support shaft, and a motor three for driving the second support shaft to rotate is arranged in the side wall of the machine box; A surrounding plate fixedly installed in the machine box, one group of surrounding plates is arranged on each side of the filter plate, and the filter plate is in sliding contact with the surrounding plate; At least one toothed scraper, the toothed scraper is located above the filter plate, and an elastic pressing strip for elastically pressing the filter plate is arranged on the surrounding plate.

7. A method for using an impurity removal machine for dehulled cereal grains, characterized in that, Applied to the impurity removal machine for the grain particles after shelling as described in any one of claims 1 to 6, the method includes the following steps: Step 1: Add the shelled grain particles into the machine box in batches through the feed port. The drainage block can guide the grain particles into the working area of the separation component, and the separation component can disperse the grain particles and the impurities adsorbed on the grain particles; Step 2: After being processed by the separation component, the grain particles fall above the diversion block under the action of gravity. The diversion block can disperse the grain particles to both sides. When the grain particles flow above the diversion block, the air holes can make the air flow towards the adsorption component side; Step 3: The adsorption component can suck out the impurities mixed in the grain particles, and the remaining grain particles will fall into the working area of the screening component under the action of their own gravity; Step 4: Start the screening component. The screening component can perform secondary filtration on the grain particles. The filtered grain particles and the remaining impurities are discharged in batches through the discharge port to complete the impurity removal work.

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