An automatic screening device for insect breeding, and an insect breeding system

Abstract

The application discloses an automatic screening device for insect breeding, which comprises a rack, a turnover mechanism, a conveying belt mechanism and an open-top receiving hopper, the turnover mechanism is arranged at the opening of the receiving hopper, the conveying belt mechanism comprises a conveying drive assembly and two annular conveying belts which are arranged in parallel on the two sides of the turnover mechanism, the two annular conveying belts are used for jointly bearing and driving the breeding tray to move, so that the breeding tray is transmitted to the turnover mechanism to be overturned and unloaded in the forward transmission, and then the breeding tray is transmitted reversely to be taken out, and more than one screening mechanism is arranged at the bottom discharge port of the receiving hopper, so as to screen and collect the dropped insect bodies, insect skins and insect excrement respectively. The application further discloses an insect breeding system. The application has the advantages of convenient and fast operation, high intelligent degree, high screening efficiency, great reduction of labor intensity, no damage to insects and good adaptability to automatic breeding.

Description

Technical Field

[0001] This invention mainly relates to the field of insect breeding equipment, specifically to an automatic screening device for insect breeding, and also to an insect breeding system. Background Technology

[0002] In today's society, insect farming has certain industrial and economic value. For example, mealworms are the most ideal feed insects for artificial breeding. They are highly nutritious and can be used directly as live animal protein feed for frogs, turtles, scorpions, centipedes, ants, high-quality fish, ornamental birds, medicinal animals, valuable fur-bearing animals, and rare livestock and poultry. Moreover, after processing, they can be used in the food, health product, and cosmetic industries. Because their protein content ranks first among various live animal protein feeds, they are known as a "treasure trove of protein feed."

[0003] Taking the mealworm as an example, its life cycle consists of four parts: egg, larva, pupa, and adult. Its breeding begins with the eggs. Once mature, the larvae can be used for commercial purposes such as pet breeding. Pupae and adults are used for breeding stock for the next batch. During the larval growth process, the larvae gradually increase in size, so the breeding area needs to be continuously increased to ensure that the stocking density remains within a certain range; otherwise, they will crowd each other, severely affecting their growth. Simultaneously, during growth, they produce frass and molt multiple times, which also needs to be separated promptly. This is because, firstly, the separated frass and molt can be used for other commercial production, such as frass being made into fertilizer and molt molt into medicine, generating immediate commercial value; secondly, if not separated, it will negatively impact the breeding environment, occupy breeding space, and thus adversely affect its growth. In existing technologies, multi-level breeding racks are used, with multiple breeding trays placed on each rack from top to bottom. Some racks hold a dozen or even dozens of breeding trays for artificial breeding, and the insects, excrement, and exoskeletons are manually removed from the trays using sieves. This presents the following technical problems:

[0004] First, because of the large number of animals being raised, this method of manually pouring feed into each breeding tray and then manually sorting and removing the feed results in a high level of manual labor intensity. The sorting and removal process is very arduous, and it cannot quickly separate and package the insects, insect excrement, and insect skin in one go.

[0005] Second, during the removal process, the insects, insect droppings, and insect skins mixed together need to be screened separately. However, the existing method results in incomplete and unclean screening, often with insect droppings, insect skins, and insects mixed together, which seriously affects the growth of mealworms.

[0006] Third, manual screening and removal is a rough process that can damage the mealworms being screened, and may even result in the death of the mealworms, which seriously affects subsequent commercial use.

[0007] Fourth, manual screening and removal methods have a low level of automation and cannot be adapted to automated aquaculture equipment. If an automated aquaculture system is to be designed to improve the efficiency of existing aquaculture methods, then the existing manual screening method, which is an indispensable part of aquaculture operations, will inevitably be unable to meet the requirements of automated aquaculture operations. Summary of the Invention

[0008] The technical problem solved by this invention is to provide an automatic screening device for insect farming that is convenient and quick to operate, highly intelligent, efficient in screening, can greatly reduce the intensity of manual labor, will not damage insects, and can be well adapted to automated farming, in order to address the problems existing in the prior art. In addition, an insect farming system is also provided.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0010] An automatic screening device for insect farming includes a frame, on which a tilting mechanism, a conveyor belt mechanism, and a receiving hopper with an open top are provided. The tilting mechanism is located at the opening of the receiving hopper. The conveyor belt mechanism includes a conveying drive assembly and two annular conveyor belts arranged parallel to each other on both sides of the tilting mechanism. The two annular conveyor belts are used to jointly carry and drive the breeding trays to move, so that during forward transmission, the breeding trays are transferred to the tilting mechanism for tilting and unloading, and then the trays are transferred in the reverse direction to exit. At the bottom discharge port of the receiving hopper, there is one or more screening mechanisms for screening and collecting the fallen insect bodies, insect skins, and insect excrement.

[0011] As a further improvement of the present invention, the flipping mechanism includes two symmetrically arranged flipping plates. The middle part of each flipping plate is rotatably mounted on the frame through a rotating shaft. An annular conveyor belt is installed on each flipping plate. Two or more first limiting rods are fixed between the two flipping plates above the annular conveyor belt to form a limiting space for placing the breeding tray between the first limiting rods and the annular conveyor belt. Second limiting rods are also connected to the ends of the two flipping plates to abut against the ends of the conveyed breeding trays to limit the breeding trays within the limiting space.

[0012] As a further improvement of the present invention, the flipping mechanism includes a first forward and reverse drive motor fixed on the frame. A first gear assembly is provided on the shaft end of any of the rotating shafts extending out of the frame and the drive end of the first forward and reverse drive motors, which is used to drive the rotating shafts to rotate the two flipping plates synchronously in the forward and reverse directions through the forward and reverse drive of the first forward and reverse drive motors to achieve flipping.

[0013] As a further improvement of the present invention, each of the flip plates is equipped with a plurality of first synchronous pulleys at the mounting position of the annular conveyor belt, and the annular conveyor belt is wound around the plurality of first synchronous pulleys to limit and support the annular conveyor belt.

[0014] As a further improvement of the present invention, the conveying drive assembly includes a mounting plate, a second forward and reverse drive motor, and a drive shaft. The drive shaft is rotatably and laterally mounted between two tilting plates. A second transmission wheel is mounted on each end of the drive shaft so that the two annular conveyor belts on both sides are pressed onto the second transmission wheel. The mounting plate is close to the drive shaft and laterally mounted between the two tilting plates. The second forward and reverse drive motor is mounted on the mounting plate. A second gear assembly is provided on the drive shaft and the drive end of the second forward and reverse drive motor, which meshes with the second gear assembly for driving the two annular conveyor belts synchronously forward and reverse through the forward and reverse drive of the second forward and reverse drive motor.

[0015] As a further improvement of the present invention, the screening mechanism includes a fan assembly, an insect body collection chamber, an insect skin transfer chamber, an insect excrement collection chamber, and a vertically arranged main channel. The top opening of the main channel is used to communicate with the bottom discharge port of the receiving hopper, and the bottom opening of the main channel is used to communicate with the insect body collection chamber so that the insects fall directly into the insect body collection chamber. The vertical side wall of the main channel is also provided with a first screening port and a second screening port arranged vertically. The upper first screening port is used to communicate with the insect skin transfer chamber, and the lower second screening port is used to communicate with the insect excrement collection chamber. The fan assembly is arranged corresponding to the first screening port and the second screening port and is used to blow or draw air towards the first screening port and the second screening port so that insect skins and insect excrement of different qualities enter the insect skin transfer chamber and the insect excrement collection chamber respectively under the action of the wind.

[0016] As a further improvement of the present invention, there are two screening mechanisms. A guide baffle is provided in the middle of the discharge port at the bottom of the receiving hopper to divide the discharge port into two outlets on an even basis. Each outlet is connected to a screening mechanism.

[0017] As a further improvement of the present invention, the frame is further provided with a transmission platform mechanism for docking with the outside at the front end of the flipping mechanism. The transmission platform mechanism is provided with a translational transmission component for transporting the breeding tray toward the conveyor belt mechanism.

[0018] As a further improvement of the present invention, a matching hopper cover is provided on the frame above the receiving hopper to form a closed cavity for tipping and unloading. An opening is provided between the hopper cover and the receiving hopper at the transmission path of the breeding tray to allow the breeding tray to enter and exit.

[0019] An insect breeding system includes a breeding rack with two or more breeding trays, and an automatic screening device for insect breeding as described in any of the above-mentioned embodiments. These features result in a system that requires little floor space, is easy and quick to operate, and boasts a high degree of automation and efficiency.

[0020] Compared with the prior art, the advantages of the present invention are as follows:

[0021] Firstly, the automatic screening device for insect farming of this invention features a rotating mechanism and a conveyor belt mechanism at the opening of the receiving hopper. The conveyor belt mechanism transports the breeding trays and automatically returns them to their original positions after unloading. The rotating mechanism flips the breeding trays transported by the conveyor belt mechanism to unload the feed. This allows the device to interface seamlessly with external equipment, completely eliminating the tedious manual unloading of breeding trays one by one in existing technologies. This significantly reduces labor intensity, saves labor costs, and greatly increases work efficiency.

[0022] Secondly, the automatic screening device for insect farming of the present invention, in addition to the aforementioned automatic feeding and automatic flipping, also includes a corresponding automatic screening mechanism. One set of equipment can quickly and efficiently separate and package insect bodies, insect excrement, and insect skins in one go, completely eliminating a series of technical problems caused by the manual screening and removal methods in existing technologies. It effectively achieves automated screening operations, not only reducing labor intensity but also achieving extremely high screening efficiency. Furthermore, it avoids damage to the insects being screened due to manual screening, preventing the occurrence of dead insects and ensuring excellent subsequent commercial use.

[0023] Thirdly, the automatic screening device for insect farming of the present invention has a rotating mechanism, a conveyor belt mechanism, and an automatic screening mechanism that work together and support each other to form an excellent integrated operation of automated tray feeding, unloading, and screening. It has a high degree of intelligence and strong adaptability, which makes the device well adaptable to the operation requirements of automated farming equipment.

[0024] Fourthly, the automatic screening device for insect farming of the present invention includes an automatic screening device for insect farming. This makes the system small in footprint, convenient and quick to operate, and highly automated and efficient. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural schematic diagram of the automatic screening device for insect breeding according to the present invention.

[0026] Figure 2 This is a three-dimensional structural principle diagram of the automatic screening device for insect breeding of the present invention when it is flipped.

[0027] Figure 3This is a three-dimensional structural principle diagram of the conveyor belt mechanism of the present invention.

[0028] Figure 4 This is a top view schematic diagram of the automatic screening device for insect breeding according to the present invention.

[0029] Figure 5 This is a side view schematic diagram of the screening mechanism of the present invention.

[0030] Figure 6 This is a schematic diagram of the three-dimensional structure of the screening mechanism of the present invention.

[0031] Figure 7 This is a schematic diagram of the structural principle of the automatic screening device for insect breeding of the present invention when used in conjunction with an external lifting device.

[0032] Legend:

[0033] 1. Frame; 11. Receiving hopper; 13. Guide partition; 5. Tilting mechanism; 51. Tilting plate; 52. Rotating shaft; 53. First limiting rod; 54. Second limiting rod; 55. First forward and reverse drive motor; 56. First gear assembly; 57. First synchronous pulley; 6. Conveyor belt mechanism; 61. Conveyor drive assembly; 611. Mounting plate; 612. Second forward and reverse drive motor; 613. Drive shaft; 614. Second gear assembly; 62. Circular conveyor belt; 7. Screening mechanism; 71. Fan assembly; 72. Insect body collection chamber; 73. Insect skin transfer chamber; 74. Insect excrement collection chamber; 75. Main channel. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0035] like Figures 1 to 7 As shown, the present invention provides an automatic screening device for insect breeding, including a frame 1. A walking mechanism is provided at the bottom of the frame 1. In this embodiment, the walking mechanism includes multiple roller assemblies. The frame 1 is provided with a flipping mechanism 5, a conveyor belt mechanism 6, and a receiving hopper 11 with an upper opening. The flipping mechanism 5 is located at the opening of the receiving hopper 11. The conveyor belt mechanism 6 includes a conveying drive assembly 61 and two annular conveyor belts 62 arranged parallel to both sides of the flipping mechanism 5. The two annular conveyor belts 62 are used to jointly carry and drive the breeding trays to move, so that the breeding trays are transferred to the flipping mechanism 5 for flipping and unloading during forward transmission, and then transferred in the reverse direction to remove the breeding trays. At the bottom discharge port of the receiving hopper 11, there is one or more screening mechanisms 7 for screening and collecting the fallen insect bodies, insect skins, and insect excrement.

[0036] The rack 1 of this invention can automatically interface with an external platform or an external conveying device. For example... Figure 7As shown, an external lifting device (attached) is provided on the left side of frame 1. Figure 7 In this diagram, G represents an external lifting device. This external lifting device G can lift and lower the breeding trays on the breeding rack and transport them to the vicinity of the feeding hopper 11. Alternatively, in other embodiments, a horizontal conveyor belt can be used to horizontally transport the breeding trays to the vicinity of the feeding hopper 11. The following description uses the external lifting device G as an example, based on the accompanying drawings. The specific structure of the external lifting device is irrelevant to this invention and will not be described in detail here. The specific implementation principle is as follows:

[0037] When the external lifting device G transports the breeding tray (B in the attached diagram represents the breeding tray) to the vicinity of the receiving hopper 11, the conveyor belt mechanism 6 above the opening of the receiving hopper 11 starts to operate. Once the breeding tray contacts the forward-moving annular conveyor belt 62 (regarding contact, the breeding tray can be manually brought into contact with the annular conveyor belt 62, or contact can be formed through external equipment; for example, in this embodiment, the external lifting device G is also equipped with a transmission device that can transport the breeding tray above the receiving hopper 11 to contact the annular conveyor belt 62), the operating annular conveyor belt 62 will drive and carry the breeding tray on the annular conveyor belt 62. Finally, the two annular conveyor belts 62 together carry and drive the breeding tray forward to the flipping mechanism 5. After the conveying stops, the flipping mechanism 5 flips the breeding tray to unload it (e.g., Figure 2 (As shown in the diagram), at this point, all the insect bodies, insect skins, and insect excrement on the breeding tray fall into the receiving hopper 11 below. After the breeding tray is turned to a horizontal position, the circular conveyor belt 62 reverses its direction to remove the breeding tray and push it back onto the external lifting device G. Simultaneously, the insect bodies, insect skins, and insect excrement that have fallen into the receiving hopper 11 will enter the screening mechanism 7 through the bottom discharge port. The screening mechanism 7 has a sorting function (specifically implemented below), capable of sorting and collecting the fallen insect bodies, insect skins, and insect excrement separately. Through the above special scientific design, the following technical advantages are achieved:

[0038] Firstly, the automatic screening device for insect farming of the present invention has a rotating mechanism 5 and a conveyor belt mechanism 6 that cooperate with each other at the opening of the receiving hopper 11. The conveyor belt mechanism 6 can transport the breeding trays and automatically return the unloaded breeding trays to their original positions, while the rotating mechanism 5 can rotate and unload the breeding trays transported by the conveyor belt mechanism 6. This allows the device to interface well with external equipment, completely avoiding the tedious manual operation of unloading breeding trays one by one in the prior art. This not only greatly reduces the intensity of manual labor and saves labor costs, but also has extremely high work efficiency.

[0039] Secondly, the automatic screening device for insect farming of the present invention, in addition to the aforementioned automatic feeding and automatic flipping, also includes a corresponding automatic screening mechanism 7. One set of equipment can quickly and efficiently separate and package insect bodies, insect excrement, and insect skins in one go, completely eliminating a series of technical problems caused by the manual screening and removal methods in existing technologies. It effectively achieves automated screening operations, not only reducing labor intensity but also achieving extremely high screening efficiency. Furthermore, it avoids damage to the insects being screened due to manual screening, preventing the occurrence of dead insects and ensuring excellent subsequent commercial use.

[0040] Thirdly, the automatic screening device for insect breeding of the present invention, in which the flipping mechanism 5, the conveyor belt mechanism 6, and the automatic screening mechanism 7 cooperate and support each other, constitutes an excellent integrated operation of automated tray feeding, unloading, and screening. It has a high degree of intelligence and strong adaptability, which enables the device to adapt well to the operation requirements of automated breeding equipment.

[0041] like Figures 1 to 4 As shown, in a preferred embodiment, the flipping mechanism 5 includes two symmetrically arranged flipping plates 51. Each flipping plate 51 is rotatably mounted on the frame 1 via a rotating shaft 52 at its center. An annular conveyor belt 62 is mounted on each flipping plate 51. Two or more first limiting rods 53 are fixed above the annular conveyor belt 62 between the two flipping plates 51 to form a limiting space for placing the breeding tray between the first limiting rods 53 and the annular conveyor belt 62. A second limiting rod 54 is also connected to the tail end of each flipping plate 51 to abut against the end of the transmitted breeding tray, thus confining the breeding tray within the limiting space. When the transmitted breeding tray contacts the second limiting rod 54 at the tail end, the breeding tray is precisely positioned within the limiting space formed between the first limiting rod 53 and the annular conveyor belt 62. This ensures that when flipping towards the tail end, the annular conveyor belt 62, the first limiting rod 53, and the second limiting rod 54 cooperate to abut against the breeding tray, preventing it from falling off during the flipping process. This structural design not only makes flipping safe and stable, but also makes the structure very simple, easy to manufacture and maintain.

[0042] like Figures 1 to 4As shown, further, in a preferred embodiment, the flipping mechanism 5 includes a first forward and reverse drive motor 55 fixed to the frame 1. A first gear assembly 56 is provided on the shaft end of any rotating shaft 52 extending outside the frame 1 and on the drive end of the first forward and reverse drive motor 55, engaging with each other. This first gear assembly 56 is used to drive the rotating shaft 52 to rotate the two flipping plates 51 synchronously in both directions via the forward and reverse drive of the first forward and reverse drive motor 55, thereby achieving flipping. In this embodiment, the first forward and reverse drive motor 55 is laterally fixed to the crossbar of the frame 1. The first gear assembly 56 includes a transmission gear on the shaft end of the rotating shaft 52 and a threaded screw on the drive shaft end of the first forward and reverse drive motor 55, the threaded screw meshing with the transmission gear.

[0043] like Figures 1 to 4 As shown, further, in a preferred embodiment, each flipping plate 51 is equipped with multiple first synchronous pulleys 57 at the mounting point of the annular conveyor belt 62. The annular conveyor belt 62 is wound around the multiple first synchronous pulleys 57 to limit and support the annular conveyor belt 62. This allows the annular conveyor belt 62 to form excellent surface-to-surface contact with the breeding tray, ensuring the speed of transmission; at the same time, the breeding tray will not crush the annular conveyor belt 62, ensuring the accuracy requirements of transmission docking; and this driving method is simpler, lighter, and easier to control than other driving methods such as pushing and pulling with push-pull plates. Each annular conveyor belt 62 can be driven by a separate driving component, or it can be driven by a shared driving component as described below.

[0044] like Figures 1 to 4As shown, in a preferred embodiment, the conveying drive assembly 61 includes a mounting plate 611, a second forward and reverse drive motor 612, and a drive shaft 613. The drive shaft 613 is rotatably and laterally mounted between two tilting plates 51. A second transmission wheel is mounted on each end of the drive shaft 613 so that the annular conveyor belts 62 on both sides are correspondingly pressed onto the second transmission wheels. This structure is simple and low-cost, and it ensures synchronous operation on both sides through a single drive shaft 613, thereby guaranteeing the stability and accuracy of the transfer of the breeding tray. Simultaneously, the mounting plate 611 is close to the drive shaft 613 and laterally mounted between the two tilting plates 51. The second forward and reverse drive motor 612 is mounted on the mounting plate 611. A second gear assembly 614 meshes with the drive end of the drive shaft 613 and the second forward and reverse drive motor 612, used to drive the second transmission wheels on the drive shaft 613 to synchronously transmit the two annular conveyor belts 62 in both forward and reverse directions via the forward and reverse drive of the second forward and reverse drive motor 612. When the second forward and reverse drive motor 612 drives the drive shaft 613 to rotate, the second transmission wheels at both ends are pressed tightly onto the annular conveyor belt 62, enabling the annular conveyor belt 62 to rotate. This structure not only avoids occupying storage space for the breeding trays but also ensures stable driving of the first drive shaft 236, thereby effectively guaranteeing the stability and accuracy of the breeding tray transfer.

[0045] like Figure 1 , Figure 5 , Figure 6 , Figure 7 As shown, further, in a preferred embodiment, the screening mechanism 7 includes a fan assembly 71, an insect body collection chamber 72, an insect skin transfer chamber 73, an insect excrement collection chamber 74, and a vertically arranged main channel 75. The top opening of the main channel 75 is used to communicate with the bottom discharge port of the receiving hopper 11, and the bottom opening of the main channel 75 is used to communicate with the insect body collection chamber 72 so that the insects fall directly into the insect body collection chamber 72. The vertical sidewall of the main channel 75 is also provided with a first screening port arranged vertically (e.g., Figure 5 X shown) and the second filter port (as shown) Figure 5 As shown in the diagram (Y), the upper first screening port is used to communicate with the insect skin transmission chamber 73, and the lower second screening port is used to communicate with the insect excrement collection chamber 74. The fan assembly 71 is set corresponding to the first and second screening ports and is used to blow or draw air towards the first and second screening ports so that insect skins and insect excrement of different qualities enter the insect skin transmission chamber 73 and the insect excrement collection chamber 74 respectively under the action of the wind.

[0046] In this embodiment, the blower assembly 71 is a blower, which is positioned directly opposite the first and second screening ports to blow air towards them. Because the insect body, exoskeleton, and excrement have varying weights, the insect body is the heaviest, followed by the excrement, and then the exoskeleton. When the insect body, exoskeleton, and excrement fall downwards through the main channel 75, the heaviest insect body is unaffected by the airflow and falls directly into the insect body collection chamber 72 below for collection (e.g., ...). Figure 5 (As indicated by the middle arrow M). The lightest insect skin, upon entering the main channel 75, is immediately blown into the topmost first screening port before it can fall downwards, and then enters the insect skin transfer chamber 73 for collection (as shown by the middle arrow M). Figure 5 (As indicated by the middle arrow N). The insect excrement, possessing a certain mass, falls and is influenced by the wind, eventually being blown into the second screening port located below the first screening port, and then into the insect excrement collection chamber 74 for collection (as shown by the arrow N). Figure 5 (As indicated by the middle arrow P). Of course, in other embodiments, the fan assembly 71 can also be configured as an exhaust fan, positioned behind the first and second screening ports, to create a negative pressure for suction, drawing the insect skins and excrement into the first and second screening ports respectively. Such simple modifications should fall within the scope of this invention. Through the above-mentioned special scientific design, the following technical advantages are achieved:

[0047] Firstly, the automatic screening device for insect farming of the present invention has a special structure that can quickly separate and package the insect body, insect excrement, and insect skin in one go, thus achieving automated screening operations. This not only greatly reduces the intensity of manual labor and saves labor costs, but also has extremely high screening efficiency.

[0048] Secondly, the automatic screening device for insect breeding of the present invention uses wind separation to achieve screening and separation, completely eliminating the existing manual screening and removal methods, without harming the delicate insect body, and without the phenomenon of dead insects, thus ensuring subsequent commercial use.

[0049] like Figure 1 , Figure 4As shown, in a preferred embodiment, there are two screening mechanisms 7. A guide partition 13 is provided in the middle of the discharge port at the bottom of the receiving hopper 11 to divide the discharge port into two equal outlets, each of which is connected to a screening mechanism 7. Since the insects are larger than when they were screened each time, they need more space to grow in the next stage. Therefore, after each screening, all the insects need to be divided into two breeding trays for further cultivation. To this end, this device provides a guide partition 13 in the middle of the discharge port at the bottom of the receiving hopper 11, which can directly divide the insects, insect excrement, and insect skin to be screened into two equal parts. Then, the two independent screening mechanisms 7 below directly screen out two independent portions of insects (relatively equal). The insect collection chamber 72 can be connected to an empty breeding tray, and can be directly divided into two breeding trays for the next stage of cultivation without the need for subsequent manual separation and manual removal of insects. This greatly reduces the intensity of manual labor, saves labor costs, and has extremely high work efficiency.

[0050] Furthermore, in a preferred embodiment, the frame 1 is further provided with a transfer platform mechanism (not shown in the figure) at the front end of the flipping mechanism 5 for docking with external equipment. The transfer platform mechanism is provided with a translational transfer component for transferring the breeding tray towards the conveyor belt mechanism 6. This allows the device to directly dock with external automated equipment. When the translational transfer component on the transfer platform mechanism acquires the breeding tray from the external equipment, it can directly transfer the breeding tray to the conveyor belt mechanism 6, and then the tray is transferred to the receiving hopper 11 via the conveyor belt mechanism 6 to complete the flipping unloading and screening.

[0051] Furthermore, in a preferred embodiment, a matching hopper cover (not shown in the figure) is provided on the frame 1 above the receiving hopper 11 to enclose and form a closed cavity for tipping and unloading. An opening is provided between the hopper cover and the receiving hopper 11 at the transmission path of the breeding tray for the breeding tray to enter and exit. By providing the hopper cover, dust generated during tipping and unloading will not be dispersed, making it more environmentally friendly. At the same time, the hopper cover can also protect the receiving hopper 11 below and the connected screening mechanism 7, preventing foreign objects from falling in and effectively ensuring the subsequent breeding effect.

[0052] This invention also provides an insect breeding system, which includes a breeding rack with two or more breeding trays, and an automatic screening device for insect breeding as described above. Through these features, the system occupies a small area, is easy and quick to operate, and has a high degree of automation and efficiency.

[0053] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should be considered within the scope of protection of the present invention.

Claims

1. An automatic screening device for insect farming, characterized in that, The device includes a frame (1), on which a flipping mechanism (5), a conveyor belt mechanism (6), and a receiving hopper (11) with an upper opening are provided. The flipping mechanism (5) is located at the opening of the receiving hopper (11). The conveyor belt mechanism (6) includes a conveyor drive assembly (61) and two annular conveyor belts (62) arranged parallel to each other on both sides of the flipping mechanism (5). The two annular conveyor belts (62) are used to jointly carry and drive the breeding tray to move, so that the breeding tray is transferred to the flipping mechanism (5) for flipping and unloading during forward transmission, and then transferred in the reverse direction to remove the breeding tray. The bottom discharge port of the receiving hopper (11) is provided with one or more screening mechanisms (7) for sorting the fallen insect bodies, insect skins, and insect excrement. The screening and collection process is as follows: The flipping mechanism (5) includes two symmetrically arranged flipping plates (51). The middle part of each flipping plate (51) is rotatably mounted on the frame (1) through a rotating shaft (52). A ring conveyor belt (62) is installed on each flipping plate (51). Two or more first limiting rods (53) are fixed between the two flipping plates (51) above the ring conveyor belt (62) to form a limiting space for placing the breeding tray between the first limiting rods (53) and the ring conveyor belt (62). The flipping mechanism (5) includes a first forward and reverse drive motor (55) fixed on the frame (1). The shaft end of any of the rotating shafts (52) extending out of the frame (1) and the first forward and reverse drive motor are connected to the first forward and reverse drive motor. The drive end of the motor (55) is provided with a meshing first gear assembly (56) for driving the rotating shaft (52) to rotate the two flipping plates (51) synchronously in the forward and reverse directions through the forward and reverse drive motor (55) to achieve flipping; each flipping plate (51) is equipped with multiple first synchronous pulleys (57) at the mounting position of the annular conveyor belt (62), and the annular conveyor belt (62) is wound around the multiple first synchronous pulleys (57) to limit and support the annular conveyor belt (62); the conveyor drive assembly (61) includes a mounting plate (611), a second forward and reverse drive motor (612) and a drive shaft (613), and the drive shaft (613) is rotatably and laterally mounted on the two... Between the two flip plates (51), a second transmission wheel is installed on both ends of the drive shaft (613) so that the two annular conveyor belts (62) are pressed onto the second transmission wheel. The mounting plate (611) is close to the drive shaft (613) and is installed laterally between the two flip plates (51). The second forward and reverse drive motor (612) is installed on the mounting plate (611). The drive shaft (613) and the drive end of the second forward and reverse drive motor (612) are provided with a meshing second gear assembly (614) for driving the two annular conveyor belts (62) synchronously forward and reverse through the forward and reverse drive of the second forward and reverse drive motor (612).The screening mechanism (7) includes a fan assembly (71), an insect body collection chamber (72), an insect skin transfer chamber (73), an insect excrement collection chamber (74), and a vertically arranged main channel (75). The top opening of the main channel (75) is used to communicate with the bottom discharge port of the receiving hopper (11), and the bottom opening of the main channel (75) is used to communicate with the insect body collection chamber (72) so that the insects fall directly into the insect body collection chamber (72). The vertical side wall of the main channel (75) is also provided with a first screening port and a second screening port arranged vertically. The first screening port at the top is used to communicate with the insect skin transfer chamber (73), and the second screening port at the bottom is used to communicate with the insect excrement collection chamber (74).

2. The automatic screening device for insect farming according to claim 1, characterized in that, The ends of the two flip plates (51) are also connected to a second limiting rod (54) to abut the end of the transmitted breeding tray to limit the breeding tray within the limiting space.

3. The automatic screening device for insect farming according to claim 1, characterized in that, The fan assembly (71) is set with respect to the first screening port and the second screening port, and is used to blow or draw air towards the first screening port and the second screening port so that insect skins and insect excrement of different qualities enter the insect skin transmission chamber (73) and the insect excrement collection chamber (74) respectively under the action of wind.

4. The automatic screening device for insect farming according to claim 1, characterized in that, There are two screening mechanisms (7). A guide partition (13) is provided in the middle of the discharge port at the bottom of the receiving hopper (11) to divide the discharge port into two outlets on an even basis. Each outlet is connected to a screening mechanism (7).

5. The automatic screening device for insect farming according to claim 1, characterized in that, The frame (1) is also provided with a transmission platform mechanism for docking with the outside at the front end of the flipping mechanism (5). The transmission platform mechanism is provided with a translational transmission component for transmitting the breeding tray toward the conveyor belt mechanism (6).

6. The automatic screening device for insect farming according to claim 1, characterized in that, The frame (1) is provided with a matching hopper cover (14) above the receiving hopper (11) to form a closed cavity for overturning and unloading. An opening (15) is provided between the hopper cover (14) and the receiving hopper (11) at the transmission path of the breeding tray for the breeding tray to enter and exit.

7. The automatic screening device for insect farming according to claim 1, characterized in that, The frame (1) is provided with a walking mechanism at the bottom, which includes multiple roller assemblies.

8. An insect breeding system, characterized in that, The device is equipped with a breeding rack, on which two or more breeding trays are provided, and also with an automatic screening device for insect breeding as described in any one of claims 1 to 7.

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