A device for screening fresh insects and insect sand
Patent Information
- Application Number
- CN202522182236.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-15
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-10-15
AI Technical Summary
传统的操作方式是人工筛分或者人工利用简易工具进行筛分，人员劳动强度高，筛分效率低且筛分质量差
[0014]与现有技术相比本实用新型具有的有益效果有：1、利用本申请的装置，可以有效提高虫沙和鲜虫的分离效果和分离效果，也利于降低人员的劳动强度；2、排杂机构在采用抛送的方式将混合料抛送给筛分机构，抛送过程中，第一风机上吹并起到上扬混合料的效果，利于第二风机将混合料中轻质量的杂质吸走，实现除杂，而且抛送筛板上设置抛送罩，不仅利于提高第二风机的吸风效果，还能避免混合料过度上扬而落到机体上，造成堆积；3、筛分机构通过出料筛板对混合料进行筛分，出料板在出料筛板下方接料并将料导出，出料板和出料筛板都被驱动振动，不仅能实现对混合料的筛分，还能有效避免因鲜虫、虫沙水分大而粘附，而且出料导槽内配置输送件进行出料，避免设备内堵塞；4、排杂通道的排杂端设置连接管，连接管横置或者向下倾斜设置，也能够避免因料含水量大而堵塞。
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Figure CN224807838U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to fresh insect processing equipment, specifically to a device for sieving fresh insects and insect sand. Background Technology
[0002] In the process of fresh insect farming, the mixture of fresh insects and insect excrement needs to be sieved to separate the fresh insects. Traditionally, this is done manually or with simple tools, resulting in high labor intensity, low efficiency, and poor quality. Currently, some manufacturers in the industry use specialized sieve equipment to separate fresh insects and insect excrement, significantly improving efficiency compared to manual methods. The main component of this specialized equipment is a vibrating screen, which uses the size difference between the fresh insects and insect excrement to separate them. However, in actual use, due to the high moisture content of the mixture, the insects and excrement easily adhere to the vibrating screen and other components, affecting multiple operations such as sieve selection and discharge. This necessitates frequent machine shutdowns for cleaning, severely impacting work efficiency. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a device for screening fresh insects and insect sand, so as to avoid the insects and insect sand adhering to the equipment during the separation process, thereby affecting the separation and discharge steps.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a device for screening fresh insects and insect sand, including a feeding mechanism, a waste removal mechanism, and a screening mechanism. The waste removal mechanism includes a throwing screen plate, a throwing drive assembly, a first fan, a second fan, and a waste removal channel. The throwing screen plate is located at the discharge end of the feeding mechanism, and the feeding mechanism feeds the material onto the throwing screen plate. The throwing screen plate is driven by the throwing drive assembly to vibrate cyclically and throw the material towards the screening mechanism. A throwing hood is provided above the throwing screen plate. The first fan is located below the throwing screen plate and blows the material from the throwing screen plate upwards. The waste removal channel... The inlet end is located between the throwing screen plate and the throwing hood. The second fan is connected to the discharge channel and extracts the light impurities above the throwing screen plate through the discharge channel. The screening mechanism includes a discharge screen plate, a first vibration drive, a discharge plate, and a second vibration drive. The discharge screen plate is driven to vibrate by the first vibration drive and screens the material thrown by the discharge mechanism. A discharge plate and a discharge guide chute are provided below the discharge screen plate. The discharge plate is inclined towards the discharge guide chute. The discharge plate is driven to vibrate by the second vibration drive and transfers the material screened by the discharge screen plate to the discharge guide chute. A conveying component is provided in the discharge guide chute. Using the device of this application to screen fresh insects and insect sand can not only improve screening efficiency but also effectively prevent the adhesion of the mixed material to the equipment due to high moisture content.
[0005] As an optional technical solution, a horizontal separator is also included, with the discharge end of the discharge channel connected to the horizontal separator.
[0006] As an optional technical solution, the discharge end of the discharge channel is provided with a connecting pipe, which is connected to both the discharge channel and the horizontal separator. The connecting pipe is placed horizontally, or the end of the connecting pipe that connects to the discharge channel is higher than the other end.
[0007] As an optional technical solution, it also includes a frame, on which a first swing arm and a second swing arm are provided. Each swing arm is connected to the frame and swings back and forth relative to the frame. The first swing arm and the second swing arm are connected to the throwing screen plate and rotate relative to the throwing screen plate. The throwing drive assembly includes a throwing drive component, a transmission wheel and a drive arm. The transmission wheel is mounted on the frame and driven to rotate by the throwing drive component. A connecting part is provided on the transmission wheel at an off-center position. The drive arm is rotatably connected to the connecting part. A connecting arm is rotatably connected to the drive arm. The connecting arm is rotatably connected to the first swing arm and the second swing arm.
[0008] As an optional technical solution, the first fan is mounted on the frame and driven by the throwing drive component. The air outlet of the first fan is equipped with a flexible air guide tube, which is connected to the throwing screen plate and the screen holes of the throwing screen plate are connected to the flexible air guide tube.
[0009] As an optional technical solution, a third swing arm is provided on the frame. The third swing arm is connected to the frame and swings back and forth relative to the frame. The screening mechanism also includes a screening frame, which is rotatably connected to each of the third swing arms. The discharge screen plate and the discharge plate are set on the screening frame.
[0010] As an optional technical solution, the first vibration drive and the throwing drive are the same, and the second swing arm is rotatably connected to the screening frame and the connecting arm. The throwing drive assembly drives the screening frame to vibrate through the second swing arm.
[0011] As an optional technical solution, the screening frame is equipped with two discharge screen plates, namely an upper screen plate and a lower screen plate. The discharge plate and discharge guide chute are located below the lower screen plate. The screening frame is also equipped with a lower discharge chute. The lower screen plate is inclined to the lower discharge chute and transfers the material screened on the plate surface to the lower discharge chute. The upper screen plate is located above the lower screen plate. The screening frame is also equipped with an upper discharge chute. The upper screen plate is inclined to the upper discharge chute and rotates the material screened on the plate surface to the upper discharge chute.
[0012] As an optional technical solution, the impurity removal mechanism is set between the screening mechanism and the feeding mechanism, and each discharge screen plate and discharge plate is inclined to the side away from the feeding mechanism.
[0013] As an optional technical solution, the impurity inlet of the impurity discharge channel is located between the discharge end of the feeding mechanism and the throwing screen plate, and the throwing cover is an expanding mask that expands towards the screening mechanism.
[0014] Compared with the prior art, the advantages of this utility model are as follows: 1. The device of this application can effectively improve the separation effect of insect sand and fresh insects, and also help reduce the labor intensity of personnel; 2. The impurity removal mechanism throws the mixture to the screening mechanism by throwing. During the throwing process, the first fan blows upward and lifts the mixture, which helps the second fan to suck away the light impurities in the mixture, thus achieving impurity removal. Moreover, the throwing screen plate is equipped with a throwing cover, which not only improves the suction effect of the second fan, but also avoids 3. The mixture rises excessively and falls onto the machine body, causing accumulation; 4. The screening mechanism screens the mixture through the discharge screen plate. The discharge plate receives the material below the discharge screen plate and discharges it. Both the discharge plate and the discharge screen plate are driven to vibrate, which not only achieves screening of the mixture, but also effectively prevents the adhesion of fresh insects and insect sand due to high moisture content. In addition, the discharge guide chute is equipped with a conveyor for discharge to avoid blockage in the equipment; 5. The discharge end of the waste discharge channel is equipped with a connecting pipe. The connecting pipe is horizontal or inclined downwards, which can also prevent blockage due to high moisture content of the material. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 A schematic diagram of the impurity removal mechanism and the screening mechanism; Figure 2 This is a cross-sectional schematic diagram of the screening mechanism; Figure 3 A schematic diagram of the device for sieving fresh insects and insect excrement; In the diagram: 1. Feeding mechanism; 2. Impurity removal mechanism; 21. Throwing screen plate; 22. First fan; 23. Second fan; 24. Impurity removal channel; 25. Throwing hood; 26. Connecting pipe; 27. Throwing drive component; 28. Transmission wheel; 29. Drive arm; 210. Connecting arm; 3. Screening mechanism; 31. Upper screen plate; 32. Lower screen plate; 33. Discharge plate; 34. Screening frame; 35. Conveying component; 36. Second vibration drive component; 4. Frame; 41. First swing arm; 42. Second swing arm; 43. Third swing arm; 5. Horizontal separator. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example
[0018] like Figures 1-3 As shown, an apparatus for screening fresh insects and insect excrement includes a feeding mechanism 1, a waste removal mechanism 2, and a screening mechanism 3. The feeding mechanism 1 feeds the mixture containing insect excrement and fresh insects to the waste removal mechanism 2. The waste removal mechanism 2 pre-treats the mixture and separates out lighter impurities such as insect excrement. Then, the waste removal mechanism 2 sends the mixture after waste removal to the screening mechanism 3 for further processing. The screening mechanism 3 separates the fresh insects from the insect excrement based on their size difference and outputs the separated fresh insects and insect excrement separately.
[0019] The impurity removal mechanism 2 includes a throwing screen plate 21, a throwing drive assembly, a first fan 22, a second fan 23, and an impurity removal channel 24. The throwing screen plate 21 is located at the discharge end of the feeding mechanism 1. The feeding mechanism 1 feeds the mixture containing insect sand and fresh insects onto the throwing screen plate 21. The actuating part of the throwing drive assembly is connected to the throwing screen plate 21. Under the drive of the throwing drive assembly, the throwing screen plate 21 vibrates cyclically and throws the mixture on its surface toward the discharge screen plate of the screening mechanism 3. The first fan 22 is located below the throwing screen plate 21. The first fan 22 blows air upward through the screen holes of the throwing screen plate 21. During the process of the throwing screen plate 21 vibrating cyclically and throwing the material toward the screening mechanism 3, the first fan 22 helps to lift the mixture upward, which not only facilitates the delivery of the mixture to the screening mechanism 3, but also facilitates the second fan 23 to suck away the light impurities in the mixture.
[0020] A throwing hood 25 is provided above the throwing screen plate 21. The throwing hood 25 is positioned so as not to affect the feeding mechanism 1 feeding material onto the throwing screen plate 21. The impurity inlet of the impurity discharge channel 24 is located between the throwing screen plate 21 and the throwing hood 25. The second blower 23 is connected to the impurity discharge channel 24. When the second blower 23 is working, it uses the impurity discharge channel 24 to generate suction between the throwing screen plate 21 and the throwing hood 25. During the process of the throwing screen plate 21 cyclically vibrating and throwing the mixture onto the screening mechanism 3, the light impurities in the mixture are sucked into the impurity discharge channel 24 and discharged from the impurity discharge end of the impurity discharge channel 24 under the action of the second blower 23.
[0021] A throwing hood 25 is installed above the throwing screen plate 21. This not only helps to concentrate the suction force of the second blower 23 and improve the attraction of light impurities, but also prevents the mixture from being thrown onto the machine body outside the effective range of the second blower 23, thereby preventing the mixture from accumulating on the machine body. Preferably, please refer to [the following text is missing]. Figure 1 The throwing cover 25 is a wide-mouthed mask that expands towards the side where the screening mechanism 3 is located. It not only helps to attract light impurities, but also avoids affecting the throwing screen plate 21 to throw the mixed material.
[0022] A connecting pipe 26 is provided at the discharge end of the discharge channel 24. The end of the connecting pipe 26 is connected to a horizontal separator 5. The horizontal separator 5 is used to separate the light impurities sucked from the mixture, separating out the fresh insects contained therein. The connecting pipe 26 is placed horizontally or inclined so that the end of the connecting pipe 26 that connects to the discharge channel 24 is higher than the end that connects to the horizontal separator 5, to avoid clogging of the connecting pipe 26 due to excessive moisture in the light impurities.
[0023] The device in this embodiment also includes a frame 4, and the impurity removal mechanism 2 and the screening mechanism 3 are both mounted on the frame 4. The frame 4 is provided with a first swing arm 41 and a second swing arm 42. The first swing arm 41 and the second swing arm 42 are both connected to the frame 4 and can swing back and forth relative to the frame 4. The first swing arm 41 and the second swing arm 42 are both connected to the throwing screen plate 21 and can both rotate relative to the throwing screen plate 21. The throwing screen plate 21 is mounted on the frame 4 through the first swing arm 41 and the second swing arm 42. In the front-rear direction of the frame 4, the distance between the first swing arm 41 and the screening mechanism 3 is greater than the distance between the second swing arm 42 and the screening mechanism 3 relative to the second swing arm 42. The distance between the connection point of the first swing arm 41 and the throwing screen plate 21 and the connection point of the first swing arm 41 and the frame 4 is called L1, and the distance between the connection point of the second swing arm 42 and the throwing screen plate 21 and the connection point of the second swing arm 42 and the frame 4 is called L2. L1>L2, which makes the movement amplitude of the end of the throwing screen plate 21 away from the impurity removal mechanism 2 greater than that of the end close to the impurity removal mechanism 2, so that the throwing screen plate 21 can throw the mixture to the screening mechanism 3.
[0024] In a preferred embodiment, to improve structural stability, a first swing arm 41 and a second swing arm 42 are provided on opposite sides of the throwing screen plate 21 on the frame 4.
[0025] As an optional embodiment, rack 4 is also equipped with wheels to facilitate equipment repositioning and relocation.
[0026] The throwing drive assembly includes a throwing drive component 27, a transmission wheel 28, and a drive arm 29. The throwing drive component 27 is a drive component in the form of a motor or the like. The throwing drive component 27 is mounted on the frame 4. The transmission wheel 28 is rotatably mounted on the frame 4 through a bearing structure. The transmission wheel 28 and the power output part of the throwing drive component 27 are connected by belt drive or other existing common transmission methods. The throwing drive component 27 can drive the transmission wheel 28 to rotate. The transmission wheel 28 is provided with a connecting part, which is located off-center from the center of the transmission wheel 28. One end of the drive arm 29 is rotatably connected to the connecting part through a bearing structure. The other end of the drive arm 29 is connected to a connecting arm 210. The connecting arm 210 can rotate relative to the drive arm 29, and the connecting arm 210 is rotatably connected to the first swing arm 41 and the second swing arm 42.
[0027] During the rotation of the transmission wheel 28 driven by the throwing drive 27, the drive arm 29 is driven by the transmission wheel 28 to rotate around the axis of the transmission wheel 28. Through the connecting arm 210, the first swing arm 41 and the second swing arm 42 swing back and forth, thereby driving the throwing screen plate 21 to vibrate cyclically and throwing the mixture to the screening mechanism 3.
[0028] The first fan 22 is mounted on the frame 4. The power receiving part of the first fan 22 is connected to the moving part of the throwing drive 27 via a transmission method such as belt drive. The first fan 22 is driven by the throwing drive 27. The air outlet of the first fan 22 is provided with a flexible air guide tube. The flexible air guide tube is a cylindrical structure made of rubber or flexible plastic and has deformable characteristics. One end of the flexible air guide tube is connected to the air outlet of the first fan 22, and the other end is connected to the throwing screen plate 21 and communicates with each screen hole of the throwing screen plate 21. The flexible air guide tube adapts to the movement of the throwing screen plate 21. The first fan 22 blows air towards the throwing screen plate 21 through the flexible air guide tube, so that air can be blown above the surface of the throwing screen plate 21 through the screen holes.
[0029] The screening mechanism 3 includes a discharge screen plate, a first vibration drive, a discharge plate 33, and a second vibration drive 36. The discharge screen plate is driven to vibrate by the first vibration drive. A discharge plate 33 and a discharge guide chute are located below the discharge screen plate. The discharge plate 33 is inclined towards the discharge guide chute and is driven to vibrate by the second vibration drive 36. The impurity removal mechanism 2 throws the impurity-removed mixture onto the discharge screen plate, which vibrates and screens the mixture. Fresh insects or insect sand from the screen holes of the large and small discharge screens fall onto the discharge plate 33. The material falling onto the discharge plate 33 is conveyed along the slope into the discharge guide chute. The continuous vibration of the discharge plate 33 prevents material from sticking to it. A conveyor 35 is installed inside the discharge guide chute. The conveyor 35 is preferably an auger conveyor, which transports the material falling into the discharge guide chute to a designated external location. Other types of existing conveyors can also be selected as needed.
[0030] Specifically, the frame 4 is also provided with a third swing arm 43. Similar to the first swing arm 41 and the second swing arm 42, the third swing arm 43 is also connected to the frame 4 and can swing back and forth relative to the frame 4. The screening mechanism 3 also includes a screening frame 34. The screening frame 34 and the third swing arm 43 are connected through a bearing structure. The discharge screen plate and the discharge plate 33 are set on the screening frame 34. The first vibration drive unit drives the discharge screen plate to vibrate by driving the screening frame 34.
[0031] In a further embodiment, the first vibration drive and the throwing drive 27 are the same, that is, the screening frame 34 is driven to vibrate by the throwing drive 27. Specifically, one end of the second swing arm 42 is rotatably connected to the connecting arm 210, and the other end of the second swing arm 42 is rotatably connected to the screening frame 34. Of course, considering the distance, the second swing arm 42 can also be rotatably connected to the screening frame 34 through an intermediate part, with one end of the intermediate part rotatably connected to the second swing arm 42 and the other end rotatably connected to the screening frame 34. While the throwing drive 27 drives the throwing screen plate 21 to vibrate cyclically, the second swing arm 42 also rotates reciprocally relative to the frame 4, thereby driving the screening frame 34 to move back and forth reciprocally, so that the discharge screen plate vibrates and moves reciprocally to achieve screening. The second vibration drive 36 is a vibration motor, which is directly connected to the discharge plate 33 and directly drives the discharge plate 33 to vibrate.
[0032] To improve the installation stability of the screening frame 34, both sides of the screening frame 34 are connected to the frame 4 through at least two third swing arms 43.
[0033] Please see Figure 2In a preferred embodiment, the screening frame 34 is provided with two discharge screen plates, which are referred to as the upper screen plate 31 and the lower screen plate 32 for ease of description. The discharge plate 33 and the discharge guide chute are located below the lower screen plate 32. The screening frame 34 is also provided with a lower discharge chute. The lower screen plate 32 is inclined to the lower discharge chute and its plate surface is in contact with the lower discharge chute. The material screened on the lower screen plate 32 can be transferred to the lower discharge chute along the inclined surface. The upper screen plate 31 is located above the lower screen plate 32. The screening frame 34 is also provided with an upper discharge chute. The upper screen plate 31 is inclined to the upper discharge chute and its plate surface is in contact with the upper discharge chute. The material screened on the upper screen plate 31 is transferred to the upper discharge chute along the inclined surface.
[0034] The mixture is screened twice by the upper screen plate 31 and the lower screen plate 32, improving the screening effect. The impurity removal mechanism 2 throws the impurity-removed mixture onto the upper screen plate 31. After the mixture is vibrated and screened, the material larger than the screen holes is screened out and collected along the slope of the upper screen plate 31 and discharged into the upper discharge chute. The material smaller than the screen holes falls into the lower screen plate 32 or the lower discharge chute. The lower screen plate 32 vibrates and screens out the material larger than the screen holes. The material screened out on the lower screen plate 32 finally falls into the lower discharge chute and is discharged. The material falling from the lower screen plate 32 falls into the discharge plate 33 or the discharge guide chute. The discharge plate 33 vibrates and sends the material on the plate surface into the discharge guide chute. The conveying component 35 in the discharge guide chute sends out the material collected in the chute.
[0035] The feeding mechanism 1 can be a belt conveyor with a material plate on its surface, or it can be a hoist or other similar device. Figure 3 The feeding mechanism 1 is an example of a belt conveyor.
[0036] After the mixture containing fresh insects and insect sand is loaded onto the feeding mechanism 1 manually or using a feeding device, the feeding mechanism 1 feeds the mixture onto the throwing screen plate 21. The throwing screen plate 21 vibrates cyclically, throwing the material on the plate surface toward the impurity removal mechanism 2. With the cooperation of the first fan 22, the mixture is lifted up. The suction force generated by the second fan 23 above the throwing screen plate 21 sucks away the light impurities in the mixture and sends them to the horizontal separator 5 for processing. The throwing cover 25 can prevent the mixture from being thrown onto the machine body and causing accumulation. The mixture is then sent to the screening machine. After falling onto the upper screen plate 31, the mixture is vibrated and screened. Larger fresh insects or insect sand are finally transported to the upper discharge chute for collection. Smaller fresh insects or insect sand fall onto the lower screen plate 32 for further screening. Fresh insects or insect sand screened out by the lower screen plate 32 are transported to the lower discharge chute for collection. Even smaller fresh insects or insect sand fall onto the discharge plate 33. The discharge plate 33 guides these materials into the discharge guide chute, where they are conveyed and discharged by the conveyor 35. The discharge plate 33 is driven by the second vibration drive 36, which can effectively prevent the material from adhering to the discharge plate 33.
[0037] In this specification, the terms "an embodiment," "example," "specific example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A device for sieving fresh insects and insect excrement, characterized in that: The system includes a feeding mechanism (1), a waste removal mechanism (2), and a screening mechanism (3). The waste removal mechanism (2) includes a throwing screen plate (21), a throwing drive assembly, a first blower (22), a second blower (23), and a waste removal channel (24). The throwing screen plate (21) is located at the discharge end of the feeding mechanism (1), and the feeding mechanism (1) feeds the material onto the throwing screen plate (21). The throwing screen plate (21) is driven by the throwing drive assembly to vibrate cyclically and throw the material onto the screening mechanism (3). A throwing hood (25) is provided above the throwing screen plate (21). The first blower (22) is located below the throwing screen plate (21) and blows the material onto the throwing screen plate (21). The waste removal channel (24) has its waste inlet located at the discharge end of the throwing screen plate (21). 21) Between the throwing hood (25) and the second blower (23) is connected to the waste discharge channel (24) and the waste discharge channel (24) extracts the light waste above the throwing screen plate (21). The screening mechanism (3) includes a discharge screen plate, a first vibration drive, a discharge plate (33) and a second vibration drive (36). The discharge screen plate is driven to vibrate by the first vibration drive and screens the material thrown by the waste discharge mechanism (2). The discharge plate (33) and the discharge guide chute are provided below the discharge screen plate. The discharge plate (33) is inclined towards the discharge guide chute. The discharge plate (33) is driven to vibrate by the second vibration drive (36) and transfers the material screened by the discharge screen plate to the discharge guide chute. The discharge guide chute is provided with a conveyor (35).
2. The device for sieving fresh insects and insect excrement according to claim 1, characterized in that: It also includes a horizontal separator (5), and the discharge end of the discharge channel (24) is connected to the horizontal separator (5).
3. The device for sieving fresh insects and insect excrement according to claim 2, characterized in that: The discharge end of the discharge channel (24) is provided with a connecting pipe (26). The connecting pipe (26) is connected to the discharge channel (24) and the horizontal separator (5). The connecting pipe (26) is horizontal, or the end of the connecting pipe (26) that connects to the discharge channel (24) is higher than the other end.
4. The device for sieving fresh insects and insect excrement according to claim 2, characterized in that: It also includes a frame (4), on which a first swing arm (41) and a second swing arm (42) are provided. Each swing arm is connected to the frame (4) and swings back and forth relative to the frame (4). The first swing arm (41) and the second swing arm (42) are connected to the throwing screen plate (21) and rotate relative to the throwing screen plate (21). The throwing drive assembly includes a throwing drive component (27), a transmission wheel (28) and a drive arm (29). The transmission wheel (28) is provided on the frame (4) and driven to rotate by the throwing drive component (27). A connecting part is provided on the transmission wheel (28) at a position off-center. The drive arm (29) is rotatably connected to the connecting part. A connecting arm (210) is rotatably connected to the drive arm (29). The connecting arm (210) is rotatably connected to the first swing arm (41) and the second swing arm (42).
5. The device for sieving fresh insects and insect excrement according to claim 4, characterized in that: The first fan (22) is mounted on the frame (4) and driven by the throwing drive (27). The air outlet of the first fan (22) is provided with a flexible air guide tube. The flexible air guide tube is connected to the throwing screen plate (21) and each screen hole of the throwing screen plate (21) is connected to the flexible air guide tube.
6. The device for sieving fresh insects and insect excrement according to claim 4, characterized in that: A third swing arm (43) is provided on the frame (4). The third swing arm (43) is connected to the frame (4) and swings back and forth relative to the frame (4). The screening mechanism (3) also includes a screening frame (34). The screening frame (34) is rotatably connected to each of the third swing arms (43). The discharge screen plate and the discharge plate (33) are set on the screening frame (34).
7. The apparatus for sieving fresh insects and insect excrement according to claim 6, characterized in that: The first vibration drive and the throwing drive (27) are the same. The second swing arm (42) is rotatably connected to the screening frame (34) and the connecting arm (210). The throwing drive assembly drives the screening frame (34) to vibrate through the second swing arm (42).
8. The apparatus for sieving fresh insects and insect excrement according to claim 6, characterized in that: The screening frame (34) is provided with two discharge screen plates, namely the upper screen plate (31) and the lower screen plate (32). The discharge plate (33) and the discharge guide chute are located below the lower screen plate (32). The screening frame (34) is also provided with a lower discharge chute. The lower screen plate (32) is inclined to the lower discharge chute and transfers the material screened on the plate surface to the lower discharge chute. The upper screen plate (31) is located above the lower screen plate (32). The screening frame (34) is also provided with an upper discharge chute. The upper screen plate (31) is inclined to the upper discharge chute and rotates the material screened on the plate surface to the upper discharge chute.
9. The apparatus for sieving fresh insects and insect excrement according to claim 8, characterized in that: The waste removal mechanism (2) is located between the screening mechanism (3) and the feeding mechanism (1), and each discharge screen plate and discharge plate (33) is inclined to the side away from the feeding mechanism (1).
10. The apparatus for sieving fresh insects and insect excrement according to claim 9, characterized in that: The inlet end of the discharge channel (24) is located between the outlet end of the feeding mechanism (1) and the throwing screen plate (21), and the throwing cover (25) is a flared cover that expands towards the screening mechanism (3).