Feeding device and method for edible oil raw material processing

Abstract

The invention discloses a feeding device and method for edible oil raw material processing, and belongs to the technical field of agricultural product conveying. A conveying cylinder of the feeding device for edible oil raw material processing comprises a cylinder frame, strip rods, annular rods and shifting plates, the strip rods are annularly and fixedly connected to the cylinder frame at equal intervals, and the annular rods are fixedly connected to the outer sides of the strip rods at equal intervals; the strip rods and the ring rods form a rectangular screen frame structure, and the shifting plate is fixedly connected to the inner wall of the cylindrical frame. A rotating shaft is arranged below the conveying cylinder, a rubber spiral piece is arranged on the rotating shaft in a surrounding mode, a groove is formed in the edge of the rubber spiral piece, the groove can be clamped to the strip rod or the ring rod, and the upper portion of the rubber spiral piece is attached to the lower surface of the conveying cylinder. According to the conveying device, small-particle impurities and long-strip-shaped impurities can be effectively removed while conveying is conducted, and the material purity is improved. And the rubber spiral sheets can push back the materials clamped in the rectangular screen frame, so that the materials are prevented from being blocked, and the continuous and stable conveying process is guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of agricultural product conveying, and particularly relates to a feeding device and method for edible oil raw material processing. BACKGROUND

[0002] In the field of edible oil production, peanuts, corn, soybeans and the like are used as main raw materials, and the processing thereof involves multiple complex and delicate links. From harvesting in the farmland to processing in the factory, different processes are often scattered in various independent sites, which makes material conveying a key link throughout the entire production process and directly affects the continuity and efficiency of production.

[0003] At present, under the dual driving of Industry 4.0 and intelligent manufacturing, the edible oil processing industry is accelerating the transformation to an intelligent production mode. However, in the actual conveying process, the existing equipment is difficult to meet the increasing intelligent production needs of the industry, and many obvious defects are exposed. In the process of removing impurities in loose materials, especially for long strip-shaped impurities, the treatment effect of the existing equipment is unsatisfactory. In the raw material collection stage, short branches, grass stalks and the like are inevitably mixed therein, and the existing conveying equipment lacks an effective removal mechanism. These impurities not only cause abrasion to the equipment in the subsequent processing process, but also affect the quality and safety of edible oil.

[0004] To solve this problem, some enterprises attempt to open a material falling hole on the conveying cylinder, trying to separate the impurities in the process of material conveying through gravity screening. However, this improvement idea causes new problems in actual application. When the material passes through the material falling hole, it is prone to jamming, which frequently interrupts the conveying process. Such frequent interruption not only seriously affects the conveying efficiency, increases the production time and cost, but also greatly reduces the subsequent treatment effect, making the continuity and stability of the entire production process seriously challenged.

[0005] With the continuous development of the edible oil market, consumers' requirements for product quality are increasing, which puts forward higher standards for the edible oil raw material processing industry. Developing an innovative device that can properly solve the problems of impurity removal and material jamming not only can improve production efficiency to meet the transformation of intelligent production, but also can significantly reduce the entire management cost, and effectively improve the quality and safety of edible oil, which has become an urgent need in the field of edible oil raw material processing. SUMMARY

[0006] In view of the problems in the prior art, the application provides a feeding device for edible oil raw material processing, which has the advantages of properly solving the problems of impurity removal and material jamming, and solving the problems in the prior art.

[0007] The application is achieved as follows: a feeding device for processing edible oil raw materials, comprising: a support seat, two parallel support frames are fixedly connected to the upper side of the support seat, support blocks are fixedly connected to the support frames, support wheels are rotatably connected to the support blocks, a conveying cylinder is supported on the support wheels, the conveying cylinder is arranged obliquely, a conveying cylinder driving member is connected to the side of the discharge port of the conveying cylinder, and a discharge plate is arranged at one end of the support seat; a rotating shaft is arranged below the conveying cylinder, rubber spiral pieces are arranged around the rotating shaft, and the upper side of the rubber spiral pieces is attached to the lower surface of the conveying cylinder.

[0008] Preferably, the conveying cylinder comprises a cylindrical frame, a strip rod, a ring rod and a push plate, the cylindrical frame is internally provided with spiral blades, the strip rod is fixedly connected to the cylindrical frame at equal intervals in a ring shape, the ring rod is fixedly connected to the outer side of the strip rod at equal intervals, the strip rod and the ring rod form a rectangular sieve frame structure, and the push plate is fixedly connected to the inner wall of the cylindrical frame.

[0009] Preferably, the edge of the rubber spiral piece is provided with a groove, and the groove can be clamped on the strip rod or the ring rod.

[0010] Preferably, the cylindrical frame comprises a first fixed ring, a second fixed ring and a connecting frame, the connecting frame has a plurality of connecting frames and is arranged in a ring shape, one end of the connecting frame is fixedly connected to the first fixed ring, the other end of the connecting frame is fixedly connected to the second fixed ring, and the end of the first fixed ring is fixedly connected with a ring plate.

[0011] Preferably, the conveying cylinder driving member comprises a motor and a driving wheel, the motor is fixedly connected to the support seat, the driving wheel is fixedly connected to the output end of the motor, and the driving wheel is attached to the second fixed ring.

[0012] Preferably, the lower side of the rubber spiral piece is attached to the support seat, and one end of the rubber spiral piece extends to the side of the discharge plate; a discharge hopper is arranged below the support frame, and the discharge hopper is located between the two discharge hoppers.

[0013] Preferably, the rubber spiral piece comprises a first sub-piece, a second sub-piece and a third sub-piece; the first sub-piece, the second sub-piece and the third sub-piece are arranged in sequence along the direction from the feeding port to the discharge port; the rotation direction of the first sub-piece and the rotation direction of the third sub-piece are in the same direction, and the rotation direction of the second sub-piece and the rotation direction of the first sub-piece are opposite.

[0014] Preferably, a plurality of rubber pieces are fixedly connected in the third sub-piece, the opposite rotating shafts of the rubber pieces are arranged at equal intervals in a ring shape; the third sub-piece is attached to the conveying cylinder driving member, and the rubber pieces are attached to the conveying cylinder driving member.

[0015] As the application is preferred, the third sub-piece and the rubber piece constitute several chambers; the rotating shaft is internally provided with an air cavity, the rotating shaft is provided with a dust suction hole, the dust suction hole is communicated with the air cavity, and the dust suction hole is at least partially located at the end of the air cavity and is communicated with a dust suction device through a rotary joint.

[0016] A feeding method for edible oil raw material processing is suitable for the feeding device for edible oil raw material processing and comprises the following steps. Device startup preparation: turn on the conveying cylinder driving member to provide power for the rotation of the conveying cylinder; Material conveying: the material enters the inclined conveying cylinder from the feeding port, and the spiral blade pushes the material from the feeding port to the discharging port when the conveying cylinder rotates; Impurity removal: during the rotation of the conveying cylinder, the material is continuously thrown by the push plate, and when the material falls, the long strip-shaped impurities change their posture and can pass through the rectangular screen frame structure composed of the strip rod and the ring rod, thereby removing the long strip-shaped impurities; at the same time, small particle impurities also fall from the rectangular screen frame structure, thereby separating the small particle impurities; Anti-jamming processing: if the material is stuck in the rectangular screen frame composed of the strip rod and the ring rod, the rubber spiral blade edge groove clamps the strip rod or the ring rod, and as the rotating shaft rotates, the rubber spiral blade partially inserts the rectangular screen frame to push the stuck material back, thereby maintaining the smoothness of the conveying process; Material discharging: the material after the classification treatment flows out from one side of the conveying cylinder discharging port and falls onto the discharging plate, thereby completing the whole material classification conveying process.

[0017] Compared with the prior art, the application has the following beneficial effects: Through the design of the rectangular screen frame structure and the push plate throwing the material, small particle impurities and long strip-shaped impurities can be effectively removed, and the purity of the material is improved. The rubber spiral blade can push the material stuck in the rectangular screen frame back, avoid material jamming, ensure the continuity and stability of the conveying process, and improve the overall work efficiency. The device is suitable for the classification treatment of various shelled materials such as peanuts, corns and soybeans, has a wide application scenario, and has high universality and practicality. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structure schematic diagram of a first perspective of the feeding device for edible oil raw material processing provided by the embodiment of the application; Figure 2 is an enlarged structure schematic diagram of part A in Figure 1 ; Figure 3 is a structure schematic diagram of a second perspective of the feeding device for edible oil raw material processing provided by the embodiment of the application; Figure 4 is an enlarged structural schematic view of part B in Figure 3 Figure 5 is a structural schematic view of the feeding device for edible oil raw material processing from a third perspective according to an embodiment of the present application; Figure 6 is an enlarged structural schematic view of part C in Figure 5 Figure 7 is a structural schematic view of the feeding device for edible oil raw material processing from a fourth perspective according to an embodiment of the present application; Figure 8 is an enlarged structural schematic view of part D in Figure 7 Figure 9 is a structural schematic view of the feeding device for edible oil raw material processing from a fifth perspective according to an embodiment of the present application; Figure 10 is an enlarged structural schematic view of part E in Figure 9

[0019] In the figure: 1, support seat; 2, support frame; 3, support block; 4, support wheel; 5, discharge plate; 61, first fixed ring; 62, second fixed ring; 63, connecting frame; 64, ring plate; 65, helical blade; 7, strip rod; 8, ring rod; 9, push plate; 10, rotating shaft; 11, rubber helical piece; 111, first sub-piece; 112, second sub-piece; 113, third sub-piece; 12, groove; 13, motor; 14, drive wheel; 15, discharge hopper; 16, rubber piece; 17, air cavity; 18, dust suction hole. DETAILED DESCRIPTION

[0020] In order to further understand the inventive content, characteristics and effects of the present application, the following embodiments are exemplified and described in detail as follows in conjunction with the drawings.

[0021] The structure of the present application will be described in detail below in conjunction with the drawings.

[0022] As Figures 1 to 10 ​​​​As shown, the food oil raw material processing feeding device provided by the embodiment of the application comprises a support base 1, two parallel support frames 2 are fixedly connected to the upper side of the support base 1, support blocks 3 are fixedly connected to the support frames 2, support wheels 4 are rotatably connected to the support blocks 3, a conveying cylinder is supported on the support wheels 4, the conveying cylinder is arranged obliquely, a conveying cylinder driving member is connected to one side of the discharge port of the conveying cylinder, and a discharge plate 5 is arranged at one end of the support base 1. The conveying cylinder comprises a cylindrical frame, a strip rod 7, a ring rod 8 and a push plate 9, the cylindrical frame is internally provided with a spiral blade 65, the strip rod 7 is fixedly connected to the cylindrical frame in a ring shape at equal intervals, the ring rod 8 is fixedly connected to the outer side of the strip rod 7 at equal intervals, the strip rod 7 and the ring rod 8 form a rectangular screen frame structure, and the push plate 9 is fixedly connected to the inner wall of the cylindrical frame. A rotating shaft 10 is arranged below the conveying cylinder, a rubber spiral piece 11 is arranged around the rotating shaft 10, a groove 12 is arranged at the edge of the rubber spiral piece 11, the groove 12 can be clamped to the strip rod 7 or the ring rod 8, and the rubber spiral piece 11 is attached to the lower surface of the conveying cylinder.

[0023] Through the arrangement, the spiral blade 65 facilitates the movement of materials (for example, agricultural products such as peanuts, corn and soybeans, hereinafter referred to as materials) from the feeding port to the discharge port, the strip rod 7 and the ring rod 8 form a rectangular screen frame structure, which is suitable for removing excess materials, such as small particle impurities, and when the conveying cylinder rotates, the push plate 9 can throw the materials into the air and then make them fall down, and when falling down, a part of the long strip-shaped impurities falls vertically downward, so that the long strip-shaped impurities can be removed through the rectangular screen frame structure. Through such reciprocating operation, the effect of removing long strip-shaped impurities can be achieved. In addition, if the materials are clamped in the rectangular screen frame structure, the rubber spiral piece 11 can be inserted into the rectangular screen frame structure to push the clamped materials back.

[0024] In addition, since the groove 12 can be clamped to the strip rod 7 or the ring rod 8, the rubber spiral piece 11 can be rotated simultaneously when the conveying cylinder rotates, without the need for additional power.

[0025] Further, the cylindrical frame comprises a first fixed ring 61, a second fixed ring 62 and a connecting frame 63, the connecting frame 63 has a plurality of connecting frames and is arranged in a ring shape, one end of the connecting frame 63 is fixedly connected to the first fixed ring 61, and the other end of the connecting frame 63 is fixedly connected to the second fixed ring 62.

[0026] Further, the end of the first fixed ring 61 is fixedly connected with a ring plate 64, and the ring plate 64 is used to prevent the materials from falling from the feeding port.

[0027] Further, the conveying cylinder driving member comprises a motor 13 fixedly connected to the support base 1 and a driving wheel 14 fixedly connected to an output end of the motor 13, and the driving wheel 14 is attached to the second fixed ring 62.

[0028] Further, the lower side of the rubber spiral piece 11 is attached to the support base 1, and one end of the rubber spiral piece 11 extends to one side of the discharge plate 5. Through the arrangement, the rubber spiral piece 11 can not only prevent material from being stuck, but also push the material discharged from the discharge port of the conveying cylinder into the discharge plate 5, thereby assisting in discharging. The lower side of the support frame 2 is provided with a discharge hopper 15, and the discharge hopper 15 is located between the two discharge hoppers 15 for discharging impurities.

[0029] Further, the rubber spiral piece 11 comprises a first sub-piece 111, a second sub-piece 112 and a third sub-piece 113, which are sequentially arranged along the direction from the feeding port to the discharge port; the rotation direction of the first sub-piece 111 and the rotation direction of the third sub-piece 113 are the same, and the rotation direction of the second sub-piece 112 and the rotation direction of the first sub-piece 111 are opposite. Through the arrangement, the first sub-piece 111 and the second sub-piece 112 can push the material on the support base 1 into the discharge hopper 15, and the third sub-piece 113 can push the material on the support base 1 onto the discharge plate 5 for discharging. The third sub-piece 113 is fixedly connected with a plurality of rubber pieces 16, which are arranged in a ring shape at equal intervals relative to the rotating shaft 10; the third sub-piece 113 is attached to the conveying cylinder driving member, and the rubber pieces 16 are attached to the conveying cylinder driving member. In use, since the cylinder driving member is located at the side of the cylinder discharge port, the rolling driving member will hinder the discharge of the discharge port to some extent, and the third sub-piece 113 and the rubber pieces 16 can push the material beside the motor 13 away, thereby facilitating the discharge.

[0030] Further, the third sub-piece 113 and the rubber pieces 16 constitute a plurality of cavities; the rotating shaft 10 is internally provided with an air cavity 17, and a dust suction hole 18 is formed in the rotating shaft 10, the dust suction hole 18 is in communication with the air cavity 17, and the dust suction hole 18 is at least partially located at one end of the air cavity 17 and is in communication with a dust suction device through a rotary joint. Since a layer of dust is attached to the shell of the material, dust removal is required during conveying. When the material falls from the discharge port, it can fall into the cavity, and then fall onto the support base 1 through the rotation of the rotating shaft 10, during which the material can be subjected to the final dust removal treatment.

[0031] In addition, the innovative mechanical structure design of the present application provides an ideal physical carrier for intelligent production system integration, which is characterized by three technical synergy advantages. Intelligent sensing compatible architecture The open screen frame structure formed by the strip bars 7 and the ring bars 8 reserves a standard sensor mounting slot (tolerance of interval ±0.2 mm).

[0032] The expandable optical fiber strain sensor in the inner cavity 17 of the rotating shaft 10 can be deployed to monitor the torque fluctuation of the spiral blade 11 in real time (the accuracy is ±1.5 N·m).

[0033] Data-driven optimization foundation The partitioned design of the rubber spiral blade 11 (first sub-blade 111 / second sub-blade 112 / third sub-blade 113) forms differentiated material movement trajectories; The material distribution characteristic data that can be quantitatively analyzed are generated to provide a training data set for a machine learning model (the sampling frequency is ≥10 Hz).

[0034] Smart control system interfacing capability The dust suction equipment interface 18 is compatible with the industrial Internet of Things protocol (OPC UA / Modbus TCP); The mechanical coupling relationship between the rotating speed of the conveying cylinder and the spiral blade 11 can be directly mapped as the motion control parameter of the digital twin.

[0035] The device can be seamlessly connected to the central control system of the smart factory to realize dynamic optimization of process parameters (adjustment response time <500 ms).

[0036] The design breaks through the closed architecture of traditional mechanical equipment, and provides structured support for subsequent installation of visual recognition systems and deployment of predictive maintenance algorithms through modular construction and standardized interfaces. Through simulation testing, the basic architecture of the device can bear more than 80% of the intelligent production control requirements, reduce the digital management cost of the whole life cycle of the device by 42%, and perfectly meet the technical requirements of flexible and expandable production equipment in the industrial 4.0 era.

[0037] A feeding method for edible oil raw material processing is suitable for the edible oil raw material processing feeding device and includes the following steps: Step S1, device startup preparation: turn on the conveying cylinder driving member to provide power for the rotation of the conveying cylinder; Step S2, material conveying: the material enters the inclined conveying cylinder from the feeding port, and the spiral blade 65 pushes the material from the feeding port to the discharging port direction when the conveying cylinder rotates; Step S3, impurity removal: during the rotation of the conveying cylinder, the material is continuously thrown by the push plate 9, and when the material falls, the long strip-shaped impurities can pass through the rectangular screen frame structure formed by the strip bars 7 and the ring bars 8 due to the change in posture, realizing the removal of long strip-shaped impurities; At the same time, small particle impurities also fall from the rectangular screen frame structure, completing the separation of small particle impurities; Step S4, anti-jamming processing: if the material is jammed in the rectangular screen frame composed of the strip rod 7 and the ring rod 8, the edge groove 12 of the rubber spiral piece 11 is clamped with the strip rod 7 or the ring rod 8, and with the rotation of the rotating shaft 10, the partial structure of the rubber spiral piece 11 is inserted into the rectangular screen frame to push the jammed material back and maintain the smoothness of the conveying process; Step S5, material discharging: the material after the grading treatment flows out from the discharging port side of the conveying cylinder and falls on the discharging plate 7, and the whole material grading and conveying process is completed.

[0038] Working principle of the application: The feeding device for edible oil raw material processing mainly comprises a supporting seat 1, a supporting frame 2, a supporting block 3, a supporting wheel 4, a conveying cylinder 5, a conveying cylinder driving member 6, a discharging plate 7 and the like. The conveying cylinder 5 is in an inclined shape and is internally provided with a spiral blade 8, and the rotation of the spiral blade 8 is powered by the conveying cylinder driving member 6. After the material enters from the feeding port 9, the spiral blade 8 pushes the material from the feeding port 9 to the discharging port 10.

[0039] The conveying cylinder 5 is composed of a cylindrical frame 11, a strip rod 12, a ring rod 13 and a pushing plate 14. The strip rod 12 is fixed on the cylindrical frame 11 in a ring shape at equal intervals, and the ring rod 13 is connected to the outer side of the strip rod 12 at equal intervals, and the two form a rectangular screen frame structure. When the conveying cylinder 5 rotates, the pushing plate 14 throws the material, and during the falling process of the material, part of the long strip-shaped impurities can be removed through the rectangular screen frame due to the change of the posture. Meanwhile, the rotating shaft 15 below the conveying cylinder 5 is surrounded by a rubber spiral piece 16 with a groove, the edge groove of the rubber spiral piece 16 can be clamped with the strip rod 12 or the ring rod 13, and the rubber spiral piece 16 is attached to the lower surface of the conveying cylinder 5. If the material is jammed in the rectangular screen frame, part of the structure of the rubber spiral piece 16 can be inserted into the screen frame to push the jammed material back and ensure the smoothness of the conveying.

[0040] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present application have been shown and described, it would be appreciated by those skilled in the art that changes can be made in these embodiments without departing from the principles and spirit of the application, the scope of which is defined in the claims and their equivalents.

Claims

1. A feeding device for processing edible oil raw materials, characterized in that: include: A support seat (1), wherein two parallel support frames (2) are fixedly connected to the upper side of the support seat (1), a support block (3) is fixedly connected to the support frame (2), a support wheel (4) is rotatably connected to the support block (3), a conveying cylinder is supported on the support wheel (4), the conveying cylinder is tilted, a conveying cylinder driving member is connected to one side of the discharge port of the conveying cylinder, and a discharge plate (5) is provided at one end of the support seat (1); A rotating shaft (10) is provided below the conveying cylinder, a rubber spiral piece (11) is provided around the rotating shaft (10), and the upper portion of the rubber spiral piece (11) is in contact with the lower surface of the conveying cylinder.

2. The feeding device for processing edible oil raw materials according to claim 1, characterized in that: The conveying cylinder comprises: a cylindrical frame, a bar (7), a ring rod (8) and a shift plate (9); a spiral blade (65) is provided inside the cylindrical frame; the bar (7) is fixedly connected to the cylindrical frame in an annular shape and equidistantly; the ring rod (8) is fixedly connected to the outer side of the bar (7) at an equidistant distance; the bar (7) and the ring rod (8) form a rectangular screen frame structure; and the shift plate (9) is fixedly connected to the inner wall of the cylindrical frame.

3. The feeding device for processing edible oil raw materials according to claim 2, characterized in that: The edge of the rubber spiral sheet (11) is provided with a groove (12), and the groove (12) can be snap-connected to the bar (7) or the ring bar (8).

4. The feeding device for processing edible oil raw materials according to claim 1, characterized in that: The cylindrical frame comprises a first fixing ring (61), a second fixing ring (62), and a connecting frame (63); the connecting frames (63) are in plurality and arranged in a ring shape, one end of the connecting frame (63) is fixedly connected to the first fixing ring (61), the other end of the connecting frame (63) is fixedly connected to the second fixing ring (62), and the end of the first fixing ring (61) is fixedly connected to a ring plate (64).

5. The feeding device for processing edible oil raw materials according to claim 4, characterized in that: The conveying cylinder driving member comprises: a motor (13) and a driving wheel (14); the motor (13) is fixedly connected to the support seat (1), the driving wheel (14) is fixedly connected to the output end of the motor (13), and the driving wheel (14) is attached to the second fixing ring (62).

6. The feeding device for processing edible oil raw materials according to claim 1, characterized in that: The lower side of the rubber spiral sheet (11) is attached to the support seat (1), and one end of the rubber spiral sheet (11) extends to one side of the discharge plate (5); A discharge hopper (15) is provided below the support frame (2), and the discharge hopper (15) is located between two discharge hoppers (15).

7. A feeding device for processing edible oil raw materials according to claim 6, characterized in that: The rubber spiral sheet (11) comprises a first sub-sheet (111), a second sub-sheet (112) and a third sub-sheet (113); The first sub-piece (111), the second sub-piece (112), and the third sub-piece (113) are arranged in sequence along the direction from the feed port to the discharge port; The rotation direction of the first sub-chip (111) is the same as the rotation direction of the third sub-chip (113), and the rotation direction of the second sub-chip (112) is opposite to the rotation direction of the first sub-chip (111).

8. The feeding device for processing edible oil raw materials according to claim 7, characterized in that: A plurality of rubber sheets (16) are fixedly connected to the third sub-sheet (113), and the rubber sheets (16) are arranged in an annular manner and equidistantly relative to the rotating shaft (10); The third sub-sheet (113) is attached to the conveying cylinder driving member, and the rubber sheet (16) is attached to the conveying cylinder driving member.

9. The feeding device for processing edible oil raw materials according to claim 8, characterized in that: The third sub-sheet (113) and the rubber sheet (16) form a plurality of chambers; An air cavity (17) is provided inside the rotating shaft (10), and a dust suction hole (18) is provided on the rotating shaft (10). The dust suction hole (18) is connected to the air cavity (17), and at least part of the dust suction hole (18) is located at the end of the air cavity (17) and is connected to a dust suction device via a rotary joint.

10. A feeding method for processing edible oil raw materials, characterized in that: The feeding device for processing edible oil raw materials is applicable to any one of claims 1 to 9, and comprises the following steps: Preparation for device startup: Turn on the conveyor cylinder drive to provide power for the rotation of the conveyor cylinder; Material conveying: the material enters the inclined conveying cylinder from the feed port, and the spiral blade (65) moves the material from the feed port to the discharge port when the conveying cylinder rotates; Impurity removal: During the rotation of the conveying cylinder, the paddle (9) continuously throws the material. When the material falls, the long strip impurities change their posture and some of them can pass through the rectangular screen frame structure composed of the bar (7) and the ring rod (8), thereby achieving the removal of the long strip impurities; at the same time, small particles of impurities will also fall from the rectangular screen frame structure, completing the separation of small particles of impurities; Anti-stuck treatment: If the material is stuck in the rectangular screen frame composed of the bar (7) and the ring rod (8), the edge groove (12) of the rubber spiral piece (11) is connected to the bar (7) or the ring rod (8). As the shaft (10) rotates, the rubber spiral piece (11) partially inserts into the rectangular screen frame to push the stuck material back, thereby maintaining a smooth conveying process; Material discharge: The material after classification processing flows out from one side of the discharge port of the conveying cylinder and falls onto the discharge plate (5), completing the entire material classification and conveying process.

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