Impurity removal system and peeling machine

Abstract

The present application relates to the technical field of agricultural equipment, and more particularly to a foreign matter removing system and a peeling machine. The foreign matter removing system comprises a shredding roller rotatably installed in a machine frame body and located below a peeling assembly. A plurality of rubbing columns are arranged on the sidewall of the shredding roller to fix the peeling residues on the shredding roller. A concave sieve plate is arranged on the machine frame body and coaxially sleeved to the bottom of the shredding roller. When the shredding roller rotates, the concave sieve plate provides friction to the peeling residues fixed on the shredding roller. When the peeling residues are fixed on the shredding roller and rotate with the shredding roller, the friction between the concave sieve plate and the peeling residues generates a reverse resistance to the peeling residues, which promotes the peeling residues to be torn on the surface of the shredding roller. The corn kernels mixed in the peeling residues are separated from the peeling residues due to their own gravity and the centrifugal force generated by the rotation of the shredding roller.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural equipment, and in particular to a foreign matter discharging system and a husking machine. BACKGROUND

[0002] When the husking machine is working, the husking roller is used to separate the bracts, the corn silk and the corn, and the bracts, the corn silk and the fallen corn kernels are mixed together and enter the foreign matter discharging system for separation; the utility model patent with the authorization publication number CN210519471U discloses a corn harvester kernel recovery device, which comprises a shell, the upper end of the shell is provided with a feeding port, the inside of the shell is provided with a husking machine, the feeding port corresponds to the position of the husking machine, the inside of the shell and the lower part corresponding to the husking machine are provided with a belt type foreign matter discharging device, the belt type foreign matter discharging device, the outside of the rotating shaft is provided with a track, the upper surface of the track is provided with a support, the support is provided with a transverse small track, the lower part of the belt type foreign matter discharging device is provided with a screen, the lower part of the screen is provided with a recovery box, the lower part of the recovery box is provided with a discharge port, by adopting the belt type foreign matter discharging device, the state of the large internal wind force is changed, the gap between the screen and the recovery box and the height of the screen are reduced, unnecessary loss is reduced, the falling amount is reduced, and the kernel recovery rate is improved.

[0003] However, the current foreign matter discharging system of the husking machine mainly has a chain rake structure, and when the chain rake structure is running at a high speed, the bracts, the corn silk and the fallen corn kernels are easy to roll into a ball, so that a large number of corn kernels are wrapped by the bracts and discharged and cannot enter the kernel recovery box through the screen bottom in time, thereby causing a large waste. SUMMARY

[0004] The present application aims at least to solve one of the problems in the prior art or related art.

[0005] To this end, the present application provides a foreign matter discharging system, which can effectively solve the problem that the husking residues form a ball on the foreign matter discharging assembly, so that the corn kernels can be separated from the husking residues in time, and the waste phenomenon caused by the fact that a large number of corn kernels are wrapped by the bracts and discharged is avoided.

[0006] The present application also provides a husking machine.

[0007] According to the foreign matter discharging system of the first aspect of the present application, the husking machine comprises a machine frame body and a husking assembly arranged on the machine frame body, the husking assembly is used for husking the corn with bracts, so that the corn with bracts is separated into a corn cob and husking residues, the husking residues comprise bracts, corn silk and corn kernels, and the foreign matter discharging system comprises:

[0008] The shredding roller is rotatably installed in the machine frame body and located below the husking assembly;

[0009] A plurality of kneading columns are arranged on the side wall of the shredding roller, and are used to fix the peeling residues on the shredding roller;

[0010] A concave screen is arranged on the main body of the frame and coaxially covers the bottom of the shredding roller. When the shredding roller rotates, the concave screen is used to provide friction to the peeling residues fixed on the shredding roller;

[0011] A chain harrow assembly is arranged below the peeling assembly and on one side of the shredding roller. The shredding roller and the chain harrow assembly rotate in the same direction. When the shredding roller rotates, the flexible flippers on the chain harrow assembly move the peeling residues fixed on the shredding roller close to the chain harrow assembly.

[0012] Optionally, the plurality of kneading columns are arranged in the first direction and the second direction on the development surface of the shredding roller. The first direction is parallel to the axis of the shredding roller. The second direction forms an acute angle or an obtuse angle with the first direction.

[0013] Optionally, the projections of the two kneading columns adjacent in the second direction in the first direction are closely adjacent.

[0014] Optionally, the chain harrow assembly comprises:

[0015] Two first rotating shafts are parallel to the main body of the frame.

[0016] A chain harrow assembly is sleeved on the two first rotating shafts. The flexible flippers are arranged on the chain harrow assembly. The chain harrow assembly circularly moves with the rotation of the first rotating shaft.

[0017] The impurity removal system further comprises:

[0018] A second rotating shaft is rotatably arranged on the main body of the frame and on one side of the chain harrow assembly. The second rotating shaft is parallel to the first rotating shaft. The shredding roller is coaxially fixed on the second rotating shaft.

[0019] A chain is sleeved on the second rotating shaft and one of the two first rotating shafts. The second rotating shaft rotates with the first rotating shaft.

[0020] Optionally, the main body of the frame is provided with an impurity removal outlet on the side of the chain harrow assembly away from the shredding roller, and further comprises:

[0021] A movable guide is arranged on the main body of the frame. Part of the movable guide extends out of the impurity removal outlet, and the inclined direction of the movable guide is towards the bottom of the main body of the frame.

[0022] A screening assembly is arranged on the main body of the frame and below the chain harrow assembly. Part of the movable guide is located in the projection of the screening assembly towards the bottom of the main body of the frame.

[0023] Optionally, the movable guide comprises:

[0024] A first support rod is rotatably installed on the rack body, and the first support rod is arranged in parallel with the impurity outlet;

[0025] A plurality of first guide bars are equidistantly arranged on the first support rod, and a first falling gap for filtering corn kernels in the peeling residue is formed between adjacent first guide bars.

[0026] Optionally, the screening assembly comprises:

[0027] A conveying sieve plate is arranged on the rack body and below the chain harrow assembly;

[0028] A plurality of conveying guide bars are arranged on the conveying sieve plate and in parallel with the impurity outlet.

[0029] Optionally, the screening assembly comprises:

[0030] A plurality of conveying guide bars are arranged on the rack body and below the chain harrow assembly, and the plurality of conveying guide bars are arranged in a direction inclined toward the impurity outlet;

[0031] The distance between the bottom of the adjacent conveying guide bars and the connection point of the rack body is a falling opening, and the falling opening is in the projection of the adjacent conveying guide bars toward the bottom of the rack body.

[0032] Optionally, the conveying guide bar comprises:

[0033] A second support rod is arranged on the rack body, and adjacent second support rods are arranged in parallel, and the distance between adjacent second support rods is a falling opening;

[0034] A plurality of second guide bars are equidistantly arranged on the second support rod, and a second falling gap for filtering corn kernels in the peeling residue is formed between adjacent second guide bars.

[0035] Optionally, it further comprises:

[0036] An impurity fan is arranged on the rack body and away from one side of the impurity outlet, and is used to blow air in the direction of the impurity outlet to form a first air flow, the first air flow is below the concave sieve plate and the screening assembly, and is close to one side of the concave sieve plate and the screening assembly.

[0037] Optionally, it further comprises:

[0038] A kernel recovery box is arranged on the rack body and below the concave sieve plate, the screening assembly and the movable guide bar, and is used to carry and collect the corn kernels falling from the concave sieve plate, the screening assembly and the movable guide bar.

[0039] A conveying auger is rotatably installed in the kernel recovery box and is used to convey the corn kernels in the kernel recovery box.

[0040] Optionally, further comprising:

[0041] The bending piece is arranged at one end of the concave sieve plate close to the chain harrow assembly, and the sieve assembly adjacent to the bending piece is located in the projection of the bending piece towards the bottom of the rack main body.

[0042] Optionally, further comprising:

[0043] The extended straight sieve plate is arranged at one side of the concave sieve plate away from the chain harrow assembly, one end of the extended straight sieve plate is connected with the concave sieve plate, and the other end of the extended straight sieve plate is higher than the shredding cylinder along the height direction of the rack main body.

[0044] The first sieve hole is arranged on the extended straight sieve plate and the concave sieve plate, and the first sieve hole is used for sieving the corn kernels separated from the peeling residue.

[0045] According to the second aspect of the embodiment of the present application, a peeling machine comprises:

[0046] The rack main body;

[0047] The peeling assembly is arranged on the rack main body and used for peeling the target corn to obtain the corn cob and the peeling residue.

[0048] The impurity removal system of the first aspect or each embodiment is arranged on the rack main body and located below the peeling assembly, and is used for sieving the peeling residue.

[0049] One of the above technical solutions has at least the following advantages or beneficial effects:

[0050] When the peeling residue is fixed on the shredding cylinder and rotates with the shredding cylinder, the friction force between the concave sieve plate and the peeling residue generates a reverse resistance, which promotes the peeling residue to tear on the surface of the shredding cylinder, and the corn kernels mixed in the peeling residue are separated from the peeling residue due to their own gravity and the centrifugal force generated by the rotation of the shredding cylinder, and fall to the kernel recovery area through the first sieve hole of the concave sieve plate; at the same time, the flexible paddle on the chain harrow assembly continues to provide resistance to the peeling residue on the side close to the chain harrow assembly during the same direction rotation of the chain harrow assembly, and the flexible paddle stirs the peeling residue to avoid the peeling residue from being excessively wound on the rubbing column to form a lump structure, so that the shredding cylinder can continuously and efficiently separate and process the peeling residue, and effectively reduce the waste caused by the wrapped corn kernels.

[0051] The peeling machine provided by the embodiment of the present application is provided with the above impurity removal system, and the peeling machine provided with the impurity removal system should also have the corresponding technical effects due to the technical effects of the impurity removal system. BRIEF DESCRIPTION OF DRAWINGS

[0052] Figure 1A front view structural schematic diagram of a foreign matter removing system according to an embodiment of the present application is shown;

[0053] Figure 2 A perspective structural schematic diagram of a chain harrow assembly according to an embodiment of the present application is shown;

[0054] Figure 3 A top view structural schematic diagram of a conveying guide according to an embodiment of the present application is shown;

[0055] Figure 4 A structural schematic diagram of a shredding cylinder according to an embodiment of the present application is shown;

[0056] Figure 5 An expanded structural schematic diagram of a shredding cylinder according to an embodiment of the present application is shown;

[0057] Figure 6 A front view structural schematic diagram of a conveying sieve plate according to an embodiment of the present application is shown;

[0058] Figure 7 A top view structural schematic diagram of a conveying sieve plate according to an embodiment of the present application is shown.

[0059] BRIEF DESCRIPTION OF DRAWINGS

[0060] 100 - rack body, 200 - peeling assembly, 300 - shredding cylinder, 400 - kneading column, 500 - concave sieve plate, 600 - chain harrow assembly, 700 - second rotating shaft, 800 - chain, 900 - movable guide, 1000 - sieving assembly, 1100 - foreign matter removing fan, 1200 - grain recovery box, 1300 - conveying auger, 1400 - extended straight sieve plate, 1500 - bent piece, 1600 - flexible tab;

[0061] 610 - first rotating shaft, 620 - chain harrow assembly;

[0062] 910 - first support rod, 920 - first guide bar;

[0063] 1010 - conveying sieve plate, 1020 - conveying stop bar, 1030 - conveying guide;

[0064] 1031 - second support rod, 1032 - second guide bar;

[0065] 101 - foreign matter removing outlet, 501 - first sieve hole, 901 - first drop gap, 1001 - drop opening, 1002 - second drop gap, 1003 - second sieve hole, 1101 - first air flow. DETAILED DESCRIPTION

[0066] For better explaining the present application, in order to facilitate understanding, the following specific embodiments are described in detail with reference to the accompanying drawings.

[0067] The current impurity removal system of the peeling machine is not good at dealing with the mixed impurities of bracts, corn silk and fallen corn kernels. When the chain rake structure is running at high speed, the bracts, corn silk and fallen corn kernels in the chain rake structure are easy to roll into a ball, resulting in a large number of corn kernels being wrapped by bracts and being discharged without timely passing through the sieve bottom into the kernel recovery box, causing a large amount of waste.

[0068] In order to at least solve one of the technical problems existing in the prior art or related art, the present application provides an impurity removal system. When the peeling residue is fixed on the shredding cylinder and rotates with it, the friction between the concave sieve plate and the peeling residue will generate a reverse resistance, which will cause the peeling residue to tear on the surface of the shredding cylinder, and the corn kernels mixed therein will be separated from the peeling residue due to their own gravity and the centrifugal force generated by the rotation of the shredding cylinder, and will fall through the first sieve hole of the concave sieve plate to the kernel recovery area. At the same time, the flexible paddle on the chain rake assembly will continue to provide resistance to the peeling residue on the side of the shredding cylinder close to the chain rake assembly during the same direction rotation of the chain rake assembly, and will move the peeling residue, avoiding its excessive winding on the kneading column to form a ball structure, ensuring that the shredding cylinder can continuously and efficiently separate and process the peeling residue, and effectively reducing the waste caused by the discharge of the corn kernels wrapped by the bracts.

[0069] An impurity removal system and a peeling machine according to some embodiments provided by the present application are described below with reference to the accompanying drawings.

[0070] Referring to Figures 1 to 7 The present application provides an impurity removal system applied to a peeling machine. The peeling machine includes a machine body 100 and a peeling assembly 200 arranged on the machine body 100. The peeling assembly 200 is used for peeling the bract corn to separate the bract corn into corn cobs and peeling residues. The peeling residues include bracts, corn silk and corn kernels. The impurity removal system includes a shredding cylinder 300 rotatably installed in the machine body 100 and located below the peeling assembly 200; a plurality of kneading columns 400 arranged on the side wall of the shredding cylinder 300 and used for fixing the peeling residues on the shredding cylinder 300; a concave sieve plate 500 arranged on the machine body 100 and coaxially sleeved on the bottom of the shredding cylinder 300. When the shredding cylinder 300 rotates, the concave sieve plate 500 is used for providing friction to the peeling residues fixed on the shredding cylinder 300; a chain rake assembly 600 arranged below the peeling assembly 200 and located on one side of the shredding cylinder 300. The rotation directions of the shredding cylinder 300 and the chain rake assembly 600 are the same. When the shredding cylinder 300 rotates, the flexible paddle 1600 on the chain rake assembly 600 moves the peeling residues fixed on the side of the shredding cylinder 300 close to the chain rake assembly 600.

[0071] The impurity removal system provided by the embodiment is applied to a husking machine, and the husking machine comprises a rack main body 100 and a husking assembly 200. The husking assembly 200 is responsible for husking the corn with bracts and separating the corn with bracts into a corn cob and husking residues including bracts, corn silk and corn kernels. In the technical scheme, the impurity removal system comprises a shredding roller 300, a rubbing column 400, a concave sieve plate 500 and a chain harrow assembly 600. The shredding roller 300 and the chain harrow assembly 600 are both mounted on the rack main body 100 and are both located below the husking assembly 200. The location enables the shredding roller 300 and the chain harrow assembly 600 to receive the husking residues falling from the husking assembly 200 and perform corresponding operations. The rubbing column 400 is arranged on the sidewall of the shredding roller 300. When the husking residues fall onto the shredding roller 300, the rubbing column 400 can fix the husking residues on the shredding roller 300. The concave sieve plate 500 is arranged on the rack main body 100 and coaxially sleeved at the bottom of the shredding roller 300. For example, the axis of the concave sieve plate 500 coincides with the axis of the shredding roller 300, and the concave sieve plate 500 is spaced apart from the shredding roller 300, so that the rubbing column 400 rotates with the shredding roller 300 relative to the concave sieve plate 500. The chain harrow assembly 600 is arranged below the husking assembly 200 and located at one side of the shredding roller 300. When the husking residues fall onto the chain harrow assembly 600, the husking residues falling above the chain harrow assembly 600 move together with the rotation of the chain harrow assembly 600. For example, the chain harrow assembly 600 is used to deliver the husking residues on the chain harrow assembly 600 to the direction of the shredding roller 300, so that the husking residues are fixed on the shredding roller 300 by the rubbing column 400.

[0072] From the above, first, the peeling residue falling from the peeling assembly 200, a part will fall on the shredding cylinder 300, another part falls on the chain harrow assembly 600, the peeling residue falling on the shredding cylinder 300 will be fixed on the shredding cylinder 300 under the action of the rubbing column 400, so as to rotate with the shredding cylinder 300, the peeling residue falling above the chain harrow assembly 600 moves with the rotation of the chain harrow assembly 600, the chain harrow assembly 600 transports the peeling residue falling on it to the direction of the shredding cylinder 300, so as to fix the peeling residue on the shredding cylinder 300; when the shredding cylinder 300 rotates, the rubbing column 400 arranged on the shredding cylinder 300 and the peeling residue fixed on the shredding cylinder 300 rotate with the shredding cylinder 300, because the peeling residue is fixed on the outer wall of the shredding cylinder 300, when rotating to the side close to the concave sieve plate 500, the peeling residue fixed on the shredding cylinder 300 will contact the concave sieve plate 500, at this time the concave sieve plate 500 provides friction to the peeling residue fixed on the shredding cylinder 300, this friction will cause the peeling residue to move relatively on the shredding cylinder 300, rub and separate, so that the corn kernels are separated from the peeling residue, at the same time, the concave sieve plate 500 also plays a screening role, smaller corn kernels can fall through the first sieve hole 501 and enter the next link.

[0073] Further, while the shredding cylinder 300 and the chain harrow assembly 600 also move together, the shredding cylinder 300 and the chain harrow assembly 600 rotate in the same direction, at this time, the flexible paddle 1600 moving to the side close to the shredding cylinder 300 and the rubbing column 400 moving to the side close to the chain harrow assembly 600 will realize cross motion and / or collision contact, the rubbing column 400 at this position and the peeling residue move upward, the flexible paddle 1600 moves downward, in the process of cross motion and / or collision contact of the flexible paddle 1600 and the rubbing column 400, the peeling residue contacts the flexible paddle 1600 and the rubbing column 400, the flexible paddle 1600 and the rubbing column 400 exert opposite forces on the peeling residue, so that the peeling residue is subjected to a tearing force, thereby achieving the effect of unfolding, which can comb and open the peeling residue originally entangled and in a group, so as to separate the corn kernels originally attached in the peeling residue; through this structure, the problem of the peeling assembly 200 being in a group can be effectively solved, so that the corn kernels can be separated from the peeling residue in time, avoiding the waste phenomenon caused by a large number of corn kernels being wrapped and discharged by the husk.

[0074] Exemplarily, the peeling residue fixed on the shredding roller 300 rotates with the shredding roller 300 until the peeling residue is completely dropped from the shredding roller 300 due to the resistance applied by the concave sieve plate 500 and the chain harrow assembly 600, so it can be known that the number of rotations of the peeling residue fixed on the shredding roller 300 with the shredding roller 300 includes but is not limited to one rotation.

[0075] Exemplarily, the intersecting movement of the kneading column 400 and the flexible tab 1600 not only tears and spreads the peeling residue, but also contacts each other during the movement. When the flexible tab 1600 and the kneading column 400 contact each other, the flexible tab 1600 and the kneading column 400 that contact each other will exert a force on the other. Through the generated force, a cleaning effect can be generated on the flexible tab 1600 and the kneading column 400, so as to avoid that the peeling residue or the sticky substance generated by the peeling residue is wound on the flexible tab 1600 and the kneading column 400, so that the flexible tab 1600 and the kneading column 400 can always be kept in a relatively clean state, so as to make the whole impurity removal process smooth and efficient, and reduce the risk of blockage.

[0076] Exemplarily, the kneading column 400 can be made of a flexible material, and the flexible tab 1600 can be made of a rubber material, so that the flexible tab 1600 and the kneading column 400 have a certain elastic deformation capacity. When the flexible tab 1600 contacts the corn kernels separated from the peeling residue, the flexible tab 1600 will not cause damage to the corn kernels, thereby ensuring the integrity of the corn kernels.

[0077] In summary, the impurity removal system can effectively solve the problem that the bracts, hairs and corn kernels are easily rolled into a ball in the existing impurity removal system, disperse, knead and separate the peeling residue, improve the recovery rate of the corn kernels, reduce waste, and improve the working efficiency and economic benefit of the peeling machine.

[0078] Referring to Figure 4 and Figure 5 In some examples, a plurality of kneading columns 400 are arranged in the first direction and the second direction on the development surface of the shredding roller 300, respectively. The first direction is parallel to the axis of the shredding roller 300, and the included angle between the second direction and the first direction is an acute angle or an obtuse angle.

[0079] Exemplarily, the kneading columns 400 arranged circumferentially along the shredding roller 300 are rows, and the kneading columns 400 arranged circumferentially along the shredding roller 300 are columns.

[0080] In the technical solution, on the development surface of the shredding roller 300, the first direction is parallel to the axis of the shredding roller 300, and the second direction forms an included angle with the first direction, and the included angle ranges from 0° to 90° or from 90° to 180°. Therefore, the included angle between the first direction and the second direction cannot be a straight angle or a right angle. When the included angle between the first direction and the second direction is 180° or 0°, a straight angle is formed between the first direction and the second direction. In this state, the rubbing columns 400 in the first direction and the rubbing columns 400 in the second direction are in a coincident state, that is, parallel to the axis of the shredding roller 300. There is only one row of rubbing columns 400 arranged along the circumferential direction of the shredding roller 300.

[0081] When the angle between the second direction and the first direction is an acute angle or an obtuse angle, the rubbing columns 400 in adjacent rows can be staggered in the axial direction of the shredding roller 300. Therefore, the rubbing columns 400 can be uniformly distributed on the outer wall of the shredding roller 300, and the problem of missing teeth can be avoided when the shredding roller 300 rotates along its own axis.

[0082] Referring to Figure 4 and Figure 5 In some examples, projections of two rubbing columns 400 adjacent in the second direction in the first direction are closely adjacent.

[0083] In the technical solution, when the projections of two rubbing columns 400 adjacent in the second direction in the first direction are closely adjacent, it means that during the rotation of the shredding roller 300, if a concave sieve plate 500 is arranged close to the surface of the shredding roller 300, and a straight line is arranged in the axial direction of the shredding roller 300, the points passed by the rubbing columns 400 on the outer wall of the shredding roller 300 do not coincide, and the points are in close contact. Therefore, when the shredding roller 300 rotates along its own axis, the problem of missing teeth can be avoided, and the coverage of the rubbing columns 400 in the axial direction on the peeling residue is more comprehensive. When the residue falls on the roller, more rubbing columns 400 can timely fix it, avoiding the peeling residue from easily sliding on the surface of the roller, and ensuring that the peeling residue can be effectively fixed on the roller for subsequent processing.

[0084] For example, the center distance of the adjacent rubbing columns 400 in the same row / the diameter of the rubbing column 400 is equal to the number of rows arranged along the circumferential direction of the shredding roller 300. For example, the center distance of the adjacent rubbing columns 400 in the same row is 100, the diameter of the rubbing column 400 is 16, and the number of rows arranged along the circumferential direction of the shredding roller 300 is 6.

[0085] Referring to Figures 1 to 7 In some examples, the chain and rake assembly 600 comprises two first rotating shafts 610, which are parallel rotatingly mounted on the rack body 100; a chain and rake sleeve 620, which is sleeved on the two first rotating shafts 610, and the flexible flippers 1600 are arranged on the chain and rake sleeve 620, and the chain and rake sleeve 620 performs a circular motion with the rotation of the first rotating shaft 610.

[0086] The impurity removal system further comprises a second rotating shaft 700, which is rotatingly mounted on the rack body 100 and located at one side of the chain and rake assembly 600, and the second rotating shaft 700 is parallel to the first rotating shaft 610, and the shredding drum 300 is coaxially fixedly mounted on the second rotating shaft 700; a chain 800, which is sleeved on the second rotating shaft 700 and one of the two first rotating shafts 610, and the second rotating shaft 700 rotates with the first rotating shaft 610.

[0087] In the technical scheme, the two first rotating shafts 610 are parallel rotatingly mounted on the rack body 100, the chain and rake sleeve 620 is sleeved on the two first rotating shafts 610, so that the chain and rake sleeve 620 can move with the rotation of the first rotating shaft 610, and the flexible flippers 1600 are arranged on the chain and rake sleeve 620, and when the chain and rake sleeve 620 performs a circular motion with the rotation of the first rotating shaft 610, the flexible flippers 1600 also move circularly, and the flexible characteristic of the flexible flippers 1600 enables them to move the residues when they are in contact with the residues, and the residues are combed and separated, and the corn kernels are not damaged, thereby ensuring the integrity of the corn kernels.

[0088] As can be seen from the above, the parallel installation of the two first rotating shafts 610 provides a basis for the stable operation of the chain and rake sleeve 620, and ensures the structural stability and motion consistency of the chain and rake assembly 600 as a whole, and the first rotating shaft 610 drives the chain and rake sleeve 620 to move through rotation, which is the power source for the chain and rake assembly 600 to realize the function.

[0089] When the chain and rake assembly 600 is working, the first rotating shaft 610 rotates to drive the chain and rake sleeve 620 to perform a circular motion, so that the flexible flippers 1600 continuously move the residues on the shredding drum 300 close to the side of the chain and rake assembly 600, and exert a force in the opposite direction on the residues, so that the residues on the shredding drum 300 are torn and / or separated from the shredding drum 300.

[0090] In the technical scheme, the second rotating shaft 700 is rotatably installed on the rack main body 100 and is located at one side of the chain and rake assembly 600 and parallel to the first rotating shaft 610, and the shredding roller 300 is coaxially fixedly installed on the second rotating shaft 700, and rotation of the second rotating shaft 700 directly drives the shredding roller 300 to rotate synchronously, thereby providing power for the shredding roller 300 to process the peeling residue; the chain 800 is sleeved on the second rotating shaft 700 and one of the two first rotating shafts 610, thereby achieving power transmission between the first rotating shaft 610 and the second rotating shaft 700, and when the first rotating shaft 610 rotates, the second rotating shaft 700 is driven to rotate through the chain 800, and the coaxially fixed shredding roller 300 is further driven to rotate; the chain and rake assembly 600 and the shredding roller 300 can be linked and rotate in the same direction through the chain 800, thereby jointly completing the processing work of the peeling residue.

[0091] During the working process, the first rotating shaft 610 and the second rotating shaft 700 are connected through the chain 800, so that the entire impurity removal system can be driven by one power source to move multiple components, for example, a driving motor is connected with one of the two first rotating shafts 610 or the driving motor is connected with the second rotating shaft 700, thereby simplifying the power system, reducing the equipment cost and maintenance difficulty, and improving the reliability and stability of the equipment.

[0092] Referring to Figures 1 to 7 In some examples, the rack main body 100 is provided with an impurity removal outlet 101 and is located at a side of the chain and rake assembly 600 away from the shredding roller 300, and further comprises: a movable guide 900 arranged on the rack main body 100, and part of the movable guide 900 extends out of the impurity removal outlet 101, and the inclined direction of the movable guide 900 is towards the bottom of the rack main body 100; and a screening assembly 1000 arranged on the rack main body 100 and located below the chain and rake assembly 600, and part of the movable guide 900 is located in the projection of the screening assembly 1000 towards the bottom of the rack main body 100.

[0093] In the technical scheme, the rack main body 100 is provided with a foreign matter outlet 101 located on the side of the chain and rake assembly 600 away from the shredding roller 300. When the chain and rake assembly 600 and the shredding roller 300 work, the flexible paddle 1600 and the rubbing column 400 drive the peeling residue to be processed. In this process, the peeling residue above the chain and rake assembly 600 is moved to the direction close to the shredding roller by the chain and rake assembly 600, that is, to the direction away from the foreign matter outlet 101. The peeling residue processed by the shredding roller 300 and the chain and rake assembly 600 falls on the screening assembly 1000, which is located below the chain and rake assembly 600. At this time, the peeling residue on the screening assembly 1000 is moved to the direction away from the shredding roller 300 by the chain and rake assembly 600, and finally discharged from the rack main body 100 through the foreign matter outlet 101. The foreign matter outlet 101 provides a channel for the bracts and the hairs in the peeling residue to be discharged, and ensures the normal operation of the foreign matter discharging system.

[0094] The movable guide 900 is arranged on the rack main body 100 and partially extends out of the foreign matter outlet 101. The inclined direction of the movable guide 900 is towards the bottom of the rack main body 100, that is, below the rack main body 100. The inclined arrangement of the movable guide 900 can guide the peeling residue discharged from the foreign matter outlet 101 to move to the outside and below the rack main body 100, so that the bracts and the hairs in the peeling residue can be smoothly discharged from the rack main body 100.

[0095] The peeling residue processed by the shredding roller 300 and the chain and rake assembly 600 may still have some corn kernels mixed with the bracts, the hairs and other impurities. The screening assembly 1000 can perform secondary screening on these residues. Through the screening effect of the screen, the corn kernels and other impurities are further separated. The corn kernels fall through the screen to the kernel recovery area below, and the bracts, the hairs and other larger impurities remain on the screen to continue to be discharged. Since part of the movable guide 900 is located in the projection of the screening assembly 1000, the peeling residue falling from the screening assembly 1000 can accurately fall on the movable guide 900, so that the peeling residue after screening can be smoothly discharged from the rack main body 100 through the movable guide 900.

[0096] When the foreign matter discharging system works, the peeling residue is first processed by the shredding roller 300 and the chain and rake assembly 600, and then moved to the foreign matter outlet 101 by the chain and rake assembly 600. The residue discharged from the foreign matter outlet 101 is guided by the movable guide 900 to move outside the rack main body 100. In the process of moving of the peeling residue to the foreign matter outlet 101 by the chain and rake assembly 600, the peeling residue moves on the screening assembly 1000. The screening assembly 1000 performs secondary screening on the residue, separates the corn kernels for recovery, and discharges the impurities.

[0097] Exemplarily, the impurity discharging outlet 101 is a plane.

[0098] Referring to Figures 1 to 7 In some examples, the movable guide 900 comprises a first support rod 910 rotatably mounted on the rack body 100, and the first support rod 910 is arranged in parallel with the impurity discharging outlet 101; a plurality of first guide bars 920 are equidistantly arranged on the first support rod 910, and a first falling gap 901 for filtering corn kernels in the peeling residue is formed between adjacent first guide bars 920.

[0099] In the technical scheme, the movable guide 900 comprises the first support rod 910 and the first guide bars 920, wherein the first support rod 910 is rotatably mounted on the rack body 100, and this rotatable mounting mode enables the first support rod 910 and the first guide bars 920 thereon to be adjusted in angle according to actual working conditions, so as to better adapt to different impurity discharging requirements and residue flow states; the plurality of first guide bars 920 are equidistantly arranged on the first support rod 910, and the first falling gap 901 for filtering corn kernels in the peeling residue is formed between adjacent first guide bars 920, and the size of the first falling gap 901 is just enough for the corn kernels to pass through, while larger impurities such as husks and corn silks cannot pass through; when the peeling residue processed by the screening assembly 1000 is discharged from the impurity discharging outlet 101, the corn kernels will fall from the first falling gap 901 under the action of gravity, thereby continuing to realize the preliminary separation of the corn kernels from other impurities.

[0100] Referring to Figures 1 to 7 In some examples, the screening assembly 1000 comprises a conveying sieve plate 1010 arranged on the rack body 100 and located below the chain harrow assembly 600; and a plurality of conveying blocking bars 1020 arranged on the conveying sieve plate 1010 and parallel to the impurity discharging outlet 101.

[0101] In the technical scheme, the screening assembly 1000 comprises the conveying sieve plate 1010 and the conveying blocking bars 1020, wherein the conveying sieve plate 1010 is arranged on the rack body 100 and located below the chain harrow assembly 600, the peeling residue processed by the chain harrow assembly 600 and the shredding roller 300 directly falls on the conveying sieve plate 1010, the conveying sieve plate 1010 has a sieve structure, and a second sieve hole 1003 is formed on the conveying sieve plate 1010, the second sieve hole 1003 can allow the corn kernels to pass through, while larger impurities such as husks and corn silks cannot pass through; when the peeling residue falls on the conveying sieve plate 1010, the corn kernels will fall through the second sieve hole 1003 to the kernel recovery area below under the action of gravity and the conveying process, thereby realizing the separation of the corn kernels from the impurities; and the conveying sieve plate 1010 also plays a role of loading and conveying the residue, and the impurities that do not pass through the second sieve hole 1003 are conveyed to the direction of the impurity discharging outlet 101.

[0102] The second screen hole 1003 on the conveying screen plate 1010 has a size of 20-30 mm.

[0103] A plurality of conveying bars 1020 are arranged on the conveying screen plate 1010, and the conveying bars 1020 are parallel to the impurity discharge outlet 101. When the peeling residue moves on the conveying screen plate 1010 to the impurity discharge outlet 101, the conveying bars 1020 will generate a certain hindering effect on the peeling residue, so that the chain harrow assembly 600 exerts a force on the peeling residue to move. Under the action of the conveying bars 1020, a jolting effect is generated, and thus the corn kernels in the peeling residue are better exposed, and the screening effect is further enhanced.

[0104] Referring to Figure 1 In some examples, the impurity discharging system further comprises an impurity discharging fan 1100 arranged on the rack body 100 and away from one side of the impurity discharge outlet 101, for blowing air to the direction of the impurity discharge outlet 101 to form a first air flow 1101. The first air flow 1101 is located below the concave screen plate 500 and the screening assembly 1000, and close to one side of the concave screen plate 500 and the screening assembly 1000.

[0105] In this technical solution, the impurity discharging system further comprises the impurity discharging fan 1100 arranged on the rack body 100 and away from one side of the impurity discharge outlet 101. In the working of the impurity discharging system, the impurity discharging fan 1100 is connected to the power supply to work, blows air to the direction of the impurity discharge outlet 101 to form the first air flow 1101, and the air flow is located below the concave screen plate 500 and the screening assembly 1000, and close to one side of the concave screen plate 500 and the screening assembly 1000. The first air flow 1101 has a certain speed and intensity, and can generate a certain suction force on the peeling residue on the concave screen plate 500 and the screening assembly 1000. It is the Bernoulli principle: in the flow of fluid (including gas and liquid), the place with high flow rate has low pressure, and the place with low flow rate has high pressure. Exemplarily, when a gas flows at high speed, it will drive the surrounding air to flow together, causing the air flow rate in this area to increase. According to the Bernoulli principle, the pressure in this high-speed air flow area will be lower than the pressure in the surrounding environment. Therefore, the static air with higher pressure in the surrounding environment will be “attracted” to this low-pressure area to fill the gap, thus macroscopically showing a “suction force” pointing to the high-speed air flow.

[0106] From the above content, it can be known that when the impurity discharging fan 1100 works, the first air flow 1101 can generate a certain suction force on the peeling residue on the concave screen plate 500, and thus assist to increase the resistance of the concave screen plate 500 to the peeling residue on the shredding cylinder 300, so as to improve the shredding effect of the shredding cylinder 300 on the peeling residue fixed on the shredding cylinder 300 when the shredding cylinder 300 and the concave screen plate 500 work cooperatively, and promote the separation of the corn kernels from the peeling residue;

[0107] At the same time, the first air flow 1101 generates a certain suction force on the screening assembly 1000, thereby assisting the corn kernels to quickly pass through the falling from the screening assembly 1000, and generating a certain suction force on the shelling residues on the screening assembly 1000, so that when the chain harrow assembly 600 stirs the shelling residues on the screening assembly 1000, the stirring effect of the shelling residues is improved, and the corn kernels in the shelling residues are further separated from the shelling residues.

[0108] After the concave sieve plate 500 and the screening assembly 1000 preliminarily screen the materials, some lighter impurities (such as fine corn silk and broken bracts) may still be mixed with the corn kernels, and the first air flow 1101 will have an upward lifting and blowing effect on these falling materials. Due to the light weight of the impurities, they will be more easily blown and moved along with the air flow to the impurity discharge outlet 101 under the action of the air flow. The corn kernels are relatively heavy, and the air flow has less effect on them. The corn kernels will continue to fall to the kernel recovery area under the action of gravity, thereby achieving further separation of the corn kernels and the impurities.

[0109] Referring to Figure 1 In some examples, further comprising: a kernel recovery box 1200 arranged on the rack body 100 and located below the concave sieve plate 500, the screening assembly 1000 and the movable guide 900, for carrying and collecting the corn kernels falling from the concave sieve plate 500, the screening assembly 1000 and the movable guide 900; and a conveying auger 1300 rotatably installed in the kernel recovery box 1200, for conveying the corn kernels in the kernel recovery box 1200.

[0110] In this technical solution, the impurity discharge system further comprises the kernel recovery box 1200 arranged on the rack body 100 and located below the concave sieve plate 500, the screening assembly 1000 and the movable guide 900. The core function of the kernel recovery box 1200 is to carry and collect the corn kernels falling from the concave sieve plate 500, the screening assembly 1000 and the movable guide 900. In the entire impurity discharge system, the concave sieve plate 500, the screening assembly 1000 and the movable guide 900 perform a screening operation on the shelling residues, so that the corn kernels separated from the shelling residues fall into the kernel recovery box 1200 through the concave sieve plate 500, the screening assembly 1000 and the movable guide 900. The kernel recovery box 1200 receives these falling corn kernels, provides a place for the corn kernels to be collected and stored, avoids the corn kernels from being scattered, and achieves effective recovery of the corn kernels.

[0111] The kernel recovery box 1200 is arranged on the rack main body 100, which ensures stable installation and position fixation of the kernel recovery box 1200 in the impurity removal system. In addition, the device is located below the concave sieve plate 500, the screening assembly 1000 and the movable guide 900. After the screening assembly 1000 completes the screening of the corn kernels, the corn kernels naturally fall under the action of gravity and directly fall into the kernel recovery box 1200 located directly below. For example, the conveying auger 1300 is rotatably arranged in the kernel recovery box 1200. The corn kernels in the kernel recovery box 1200 are conveyed and collected by the conveying auger 1300.

[0112] The kernel recovery box 1200 and the conveying auger 1300 cooperate to complete the collection and conveying of the corn kernels. The kernel recovery box 1200 collects the separated corn kernels from the concave sieve plate 500, the screening assembly 1000 and the movable guide 900 and provides the conveying auger 1300 with the material to be conveyed. The conveying auger 1300 conveys the collected corn kernels in the kernel recovery box 1200, ensures that the corn kernels are timely and orderly transferred, prevents the corn kernels from piling up in the kernel recovery box 1200 and ensures continuous and efficient operation of the entire impurity removal system.

[0113] Referring to Figure 1 and Figure 6 In some examples, the impurity removal system further comprises a bending piece 1500 arranged at one end of the concave sieve plate 500 close to the chain harrow assembly 600. The screening assembly 1000 adjacent to the bending piece 1500 is located within the projection of the bending piece 1500 toward the bottom of the rack main body 100.

[0114] In the technical scheme, the bending piece 1500 is arranged at one end of the concave sieve plate 500 close to the chain harrow assembly 600. The screening assembly 1000 adjacent to the bending piece 1500 is located within the projection of the bending piece 1500 toward the bottom of the rack main body 100. The skinning residue on the concave sieve plate 500 is moved toward the screening assembly 1000 by the poking of the shredding cylinder 300. The skinning residue is transitioned by the bending piece 1500 during the movement from the concave sieve plate 500 to the screening assembly 1000. When the skinning residue passes through the bending piece 1500, the skinning residue accurately falls on the screening assembly 1000 due to the guiding effect of the bending piece 1500 and the fact that the screening assembly 1000 is located within the projection range of the bending piece 1500, thereby avoiding the skinning residue from scattering to other areas.

[0115] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 6In some examples, the impurity removal system further comprises: an extended straight sieve plate 1400 arranged on the side of the concave sieve plate 500 away from the chain harrow assembly 600, one end of the extended straight sieve plate 1400 being connected to the concave sieve plate 500, and the other end of the extended straight sieve plate 1400 being higher than the shredding roller 300 along the height direction of the rack body 100; wherein the first sieve hole 501 is arranged on the extended straight sieve plate 1400 and the concave sieve plate 500, and the first sieve hole 501 is used for screening the corn kernels separated from the peeling residue.

[0116] In the technical scheme, the impurity removal system further comprises an extended straight sieve plate 1400, wherein the extended straight sieve plate 1400 is arranged on the side of the concave sieve plate 500 away from the chain harrow assembly 600, and the other end of the extended straight sieve plate 1400 is higher than the shredding roller 300 along the height direction of the rack body 100.

[0117] For example, the extended straight sieve plate 1400 is in the shape of a straight plate, and as known from the above, the end of the extended straight sieve plate 1400 away from the chain harrow assembly 600 is higher than the shredding roller 300. When the shredding roller 300 rotates, the shredding roller 300 rotates counterclockwise, and the peeling residue on the side of the shredding roller 300 is subjected to centrifugal force exerted by the shredding roller 300, and part of the peeling residue is thrown away. The extended straight sieve plate 1400 blocks the peeling residue, and the arrangement of the extended straight sieve plate 1400 further expands the screening area and path of the concave sieve plate 500, prevents the material from flying away from the concave sieve plate 500 and the extended straight sieve plate 1400 during screening, and ensures that the peeling residue can be effectively screened by the concave sieve plate 500 and the extended straight sieve plate 1400.

[0118] For example, the size of the first sieve hole 501 is 20-30 mm.

[0119] Embodiment 2

[0120] For example, Figures 1 to 3 The difference between the technical features of embodiment 1 is that in some examples, the screening assembly 1000 comprises: a plurality of conveying guides 1030 arranged on the rack body 100 in sequence and inclined downward, and located below the chain harrow assembly 600, and the inclination directions of the plurality of conveying guides 1030 are all toward the impurity removal outlet 101; wherein the distance between the connection points of the bottoms of adjacent conveying guides 1030 and the rack body 100 is a falling opening 1001, and the falling opening 1001 is located in the projection of the adjacent conveying guides 1030 toward the bottom of the rack body 100.

[0121] In the technical solution, the screening assembly 1000 includes a plurality of conveying guides 1030, which are sequentially and obliquely arranged on the rack body 100 and located below the chain harrow assembly 600. The distance between the bottom of adjacent conveying guides 1030 and the connection point of the rack body 100 is the drop opening 1001, and the drop opening 1001 is located in the projection of the adjacent conveying guides 1030 towards the bottom of the rack body 100. Therefore, it can be known that a certain distance is formed between adjacent conveying guides 1030, and they are not arranged closely together. Moreover, the drop opening 1001 is located in the projection of the adjacent conveying guides 1030 towards the top of the rack body 100, so it can be concluded that the oblique direction of the plurality of conveying guides 1030 is not only towards the direction of the impurity discharge outlet 101, but also towards the top of the rack body 100.

[0122] As can be known from the above, when the chain harrow assembly 600 drives the flexible flippers 1600 to rotate in a ring shape, the flexible flippers 1600 will move the peeling residue on the conveying guides 1030 in the direction of the impurity discharge outlet 101. In the process of moving the peeling residue to the impurity discharge outlet 101, the contact and stirring of the peeling residue and the flexible flippers 1600 causes the corn kernels in the peeling residue to separate from the peeling residue. When moving from the previous conveying guide 1030 to the next conveying guide 1030, the corn kernels separated from the peeling residue fall from the space between the adjacent conveying guides 1030 based on gravity, and finally fall out of the drop opening 1001 and enter the next link. At the same time, when moving from the previous conveying guide 1030 to the next conveying guide 1030, the peeling residue will fall from the previous conveying guide 1030 to the next conveying guide 1030 based on gravity. In the whole moving process, the peeling residue moves in a jumping state, so that the corn kernels in the peeling residue are further separated.

[0123] For example, the conveying direction of the plurality of conveying guides 1030 is towards the direction of the impurity discharge outlet 101. The uniform direction ensures that the movement of the peeling residue on the conveying guides 1030 has a clear direction, so that it can move to the impurity discharge outlet 101 in an orderly manner.

[0124] Referring to Figures 1 to 3 In some examples, the conveying guide 1030 includes a second support rod 1031 arranged on the rack body 100 and arranged parallel to the impurity discharge outlet 101. Adjacent second support rods 1031 are arranged in parallel, and the distance between adjacent second support rods 1031 is the drop opening 1001. A plurality of second guide strips 1032 are arranged equidistantly on the second support rod 1031, and a second drop gap 1002 for filtering corn kernels in the peeling residue is formed between adjacent second guide strips 1032.

[0125] In the technical solution, the conveying guide 1030 comprises a second support rod 1031 and a plurality of second guide bars 1032, the second support rod 1031 is arranged on the rack main body 100, and adjacent second support rods 1031 are arranged in parallel, the drop opening 1001 is located between adjacent second support rods 1031, and the plurality of second guide bars 1032 are arranged equidistantly on the second support rod 1031, a second drop gap 1002 is formed between adjacent second guide bars 1032 for filtering the corn kernels separated from the peeling residue, the corn kernels separated from the peeling residue can drop downward through the second drop gap 1002 based on gravity, and the larger peeling residue is blocked above the second guide bars 1032, and under the action of the flexible push piece 1600, the peeling residue continues to move to the impurity discharge outlet 101 along the conveying guide 1030 and is discharged, by arranging the second drop gap 1002, the screening precision of the conveying guide 1030 on the corn kernels and the residue is further improved, it is ensured that only the corn kernels meeting the size requirement can pass through, and thus the purity of the collected corn kernels is improved.

[0126] For example, the second support rod 1031 can be fixedly or rotatably mounted on the rack main body 100, when the second support rod 1031 is rotatably mounted on the rack main body 100, the inclination angle of the plurality of second guide bars 1032 connected thereto in the rack main body 100 can be adjusted, and fine adjustment can be made according to actual conditions to improve the screening effect of the conveying guide 1030, when the second support rod 1031 is fixedly mounted on the rack main body 100, the second support rod 1031 and the second guide bars 1032 are angularly fixed with the rack main body 100, and when the conveying guide 1030 is screening, the second support rod 1031 and the second guide bars 1032 can stably screen, compared with the mounting mode that the second support rod 1031 is rotatably mounted on the rack main body 100, the failure rate of the conveying guide 1030 can be reduced, and the use cost and the production cost can be reduced.

[0127] According to the embodiment of the second aspect of the present application, a peeling machine comprises: a rack main body 100; a peeling assembly 200 arranged on the rack main body 100 and used for peeling target corn to obtain corn cobs and peeling residue; and the impurity removal system in any of the above embodiments arranged on the rack main body 100 and located below the peeling assembly 200 and used for screening the peeling residue.

[0128] Since the peeling machine of the embodiment comprises the impurity removal system in any of the above first aspects, the peeling machine has the beneficial effects of any of the above embodiments, which will not be described herein.

[0129] In the description of the application, it is necessary to understand that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0130] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0131] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature, which can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "under" and "under" the second feature, which can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.

[0132] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "embodiment", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0133] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can modify, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A waste removal system applied to a hulling machine, the hulling machine comprising a frame body and a hulling assembly disposed on the frame body, the hulling assembly being used to hull corn in husks to separate the corn in husks into corn cobs and hulling residue, the hulling residue comprising husks, corn silks, and corn kernels, characterized in that, The waste removal system includes: The shredding roller is rotatably mounted inside the frame body and located below the peeling assembly; Multiple kneading columns are disposed on the side wall of the shredding drum to fix the peeling residue on the shredding drum; A concave screen plate is disposed on the main frame and coaxially sleeved on the bottom of the shredding drum; when the shredding drum rotates, the concave screen plate is used to provide friction to the peeling residue fixed on the shredding drum; A chain rake assembly is disposed below the peeling assembly and located on one side of the shredding drum. The shredding drum and the chain rake assembly rotate in the same direction. When the shredding drum rotates, the flexible paddles on the chain rake assembly agitate the peeling residue fixed on the shredding drum near the side of the chain rake assembly. Multiple kneading columns are arranged along a first direction and a second direction on the unfolded surface of the shredding drum, the first direction being parallel to the axis of the shredding drum, and the angle between the second direction and the first direction being an acute angle or an obtuse angle.

2. The impurity removal system according to claim 1, characterized in that, The projections of two adjacent kneading columns along the second direction are closely adjacent in the first direction.

3. The impurity removal system according to claim 1, characterized in that, The chain rake assembly includes: Two first rotating shafts are mounted on the frame body in parallel rotation. A chain rake assembly is mounted on two of the first rotating shafts, and a flexible paddle is disposed on the chain rake assembly. The chain rake assembly moves in a circular cycle as the first rotating shafts rotate. The waste removal system also includes: The second rotating shaft is rotatably mounted on the main frame and located on the side close to the chain rake assembly. The second rotating shaft is parallel to the first rotating shaft, and the shredding drum is coaxially and fixedly mounted on the second rotating shaft. A chain is fitted onto the second rotating shaft and one of the two first rotating shafts, the second rotating shaft rotating with the first rotating shaft.

4. The impurity removal system according to claim 1, characterized in that, The frame body is provided with a waste discharge outlet, which is located on the side of the chain rake assembly away from the shredding drum, and also includes: A movable guide is provided on the main body of the frame, and a portion of the movable guide extends out of the waste discharge outlet, with its inclined direction facing the bottom of the main body of the frame; The screening component is disposed on the main frame and located below the chain rake component, with the movable guide section located within the projection of the screening component toward the bottom of the main frame.

5. The impurity removal system according to claim 4, characterized in that, The activity guide includes: The first support rod is rotatably mounted on the main frame body, and the first support rod is arranged parallel to the waste discharge outlet; Multiple first guide strips are equidistantly arranged on the first support rod, and a first gap is formed between adjacent first guide strips for filtering the corn kernels falling into the peeling residue.

6. The impurity removal system according to claim 4, characterized in that, The screening component includes: A conveying screen plate is mounted on the main frame and located below the chain rake assembly; Multiple conveying baffles are disposed on the conveying screen plate, and the conveying baffles are parallel to the discharge outlet.

7. The impurity removal system according to claim 4, characterized in that, The screening component includes: Multiple conveyor guides are sequentially and inclinedly arranged on the main frame body and located below the chain rake assembly. The inclination direction of the multiple conveyor guides is towards the discharge outlet. The distance between the connection point between the bottom of the adjacent conveyor guide and the main body of the frame is the drop opening, and the drop opening is located within the projection of the adjacent conveyor guide toward the bottom of the main body of the frame.

8. The impurity removal system according to claim 7, characterized in that, The conveyor belt includes: The second support rod is disposed on the main body of the frame and is arranged parallel to adjacent second support rods, and the distance between adjacent second support rods is the drop opening; Multiple second guide strips are equidistantly arranged on the second support rod, and a second drop gap is formed between adjacent second guide strips for filtering the corn kernels falling into the peeling residue.

9. The impurity removal system according to any one of claims 4 to 8, characterized in that, Also includes: A waste removal fan is mounted on the main body of the frame and on the side away from the waste removal outlet. It is used to blow air towards the waste removal outlet to form a first airflow. The first airflow is located below the concave screen plate and the screening assembly and on the side close to the concave screen plate and the screening assembly.

10. The impurity removal system according to any one of claims 4 to 8, characterized in that, Also includes: A kernel collection box is disposed on the main body of the frame and located below the concave screen plate, the screening component and the movable guide, for collecting corn kernels that fall from the concave screen plate, the screening component and the movable guide; A conveying auger is rotatably installed inside the grain collection box to convey corn kernels within the box.

11. The impurity removal system according to any one of claims 4 to 8, characterized in that, Also includes: A bending component is disposed at one end of the concave screen plate near the chain rake assembly, and the screening assembly adjacent to the bending component is located within the projection of the bending component toward the bottom of the frame body.

12. The impurity removal system according to claim 1, characterized in that, Also includes: An extended straight screen plate is disposed on the side of the concave screen plate away from the chain rake assembly. One end of the extended straight screen plate is connected to the concave screen plate, and the other end of the extended straight screen plate is higher than the shredding drum along the height direction of the main frame body. Both the extended straight screen plate and the concave screen plate are provided with a first screen hole, which is used to screen the corn kernels separated from the peeling residue.

13. A peeling machine, characterized in that, include: The main body of the frame; The peeling assembly is placed on the main frame and is used to peel the target corn to obtain corn cobs and peeling residue. The impurity removal system according to any one of claims 1 to 12 is disposed on the main frame and located below the peeling assembly, for screening peeling residue.

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