A self-evaluation classified cubilose acceptance and impurity removing device

Abstract

The present application relates to the technical field of bird's nest impurity removal, and particularly relates to a self-evaluation and classification bird's nest acceptance and impurity removal device, which comprises a conveying assembly, an evaluation assembly and a stacking assembly arranged in a shell. The conveying assembly realizes bird's nest size classification by using guide rails with gradually increasing spacing, and integrates a near-infrared probe to perform a preliminary evaluation of nutritional components. The stacking assembly receives the classified bird's nest and realizes the sequential export of individual bird's nests by a sorting mechanism. The evaluation assembly cooperates with a vibration table and a fan to quantitatively remove impurities on the surface of the bird's nest, separates the impurities according to the difference in suspension velocity by air separation, and weighs the impurities. The device calculates the hair content and the capacity impurity index based on the precise weighing data, and automatically generates an objective cleanliness grade. The present application realizes the integrated operation of conveying, size classification, quality preliminary evaluation, dry impurity removal and quantitative grading, effectively solves the problems of strong subjectivity of manual evaluation, high cost and single function of existing equipment, and significantly improves the bird's nest acceptance efficiency and the standardization level.

Description

Technical Field

[0001] This invention relates to the field of bird's nest impurity removal technology, and in particular to a bird's nest acceptance and impurity removal device with self-grading and classification. Background Technology

[0002] In the field of bird's nest processing technology, raw material inspection is the primary step in ensuring product quality and safety. In existing inspection processes, the grading and classification stages rely heavily on manual labor, which is prone to subjective errors and fails to effectively improve inspection efficiency. While machine inspection is costly, it is also difficult to quantify and grade bird's nests based on their feather content.

[0003] Chinese patent CN118719603A includes a processing box with a controller, a conveyor belt, a mounting frame, and a robotic arm. A visual recognition camera is mounted on the mounting frame, and an electric bird's nest cleaning brush is mounted on the robotic arm. An impurity box is installed on the side of the processing box, and a through-slot is provided at the bottom. A water spray pipe with multiple nozzles is installed inside the through-slot, and a water tank with a water pump is placed below the through-slot. The output of the water pump is connected to the water spray pipe via a connecting pipe. This design facilitates the washing away of impurities from the conveyor belt, ensuring the cleanliness of the conveyor belt surface and preventing impurities from adhering to the cleaned bird's nests. It facilitates comprehensive impurity removal from the bird's nests, preventing impurities from settling on the cleaned bird's nests and causing contamination. This ensures the cleanliness of the cleaned bird's nests, guarantees the effectiveness of the impurity removal process, and improves its practicality.

[0004] However, the above-mentioned cleaning method of washing the conveyor belt can easily cause water droplets to adhere to the surface of the conveyor belt. This can lead to the problem of bird's nests absorbing water droplets during transportation, increasing the burden on the subsequent grading and classification process. Furthermore, the above-mentioned method lacks the function of grading and classifying bird's nests and can only rely on manual operation, which has limited work efficiency and is prone to subjective errors. On the other hand, the above-mentioned method uses a robotic arm to control an electric feather-picking brush to achieve the effect of removing impurities. However, the robotic arm relies on manual control, and the feather-picking process requires image recognition processing, which also has recognition errors. In addition, the high cost of the equipment makes the solution less practical. Summary of the Invention

[0005] To alleviate the above-mentioned technical problems, the technical solution provided by the present invention is as follows:

[0006] This invention provides a self-grading and classification bird's nest inspection and impurity removal device, including a conveying component, a grading component, and a stacking component disposed within a housing; The conveying assembly includes two symmetrically arranged guide rails, the surfaces of which form a conveying surface for conveying bird's nests, and the distance between the two guide rails gradually increases along the conveying direction. The conveying surface is provided with a detection unit for preliminary grading of bird's nests. The stacking assembly is located below the conveying assembly and includes a temporary storage box for receiving bird's nests that have been sorted by the conveying assembly; The rating components include a filtration box and a sieving box, which are used to receive individual bird's nests exported from the stacking components and to perform filtration and cleanliness rating on them.

[0007] Furthermore, The conveying assembly also includes a fixed base, which has an annular groove and a slide rail; A connecting rod is rotatably connected to the fixed base, and a rectangular motion unit is hinged to the end of the connecting rod through a locating pin; The rectangular motion unit slides in conjunction with the slide rail, driving the horizontal plate to reciprocate. The bottom of the horizontal plate has multiple equally spaced straight plates, and the adjacent straight plates form a partition groove to accommodate a single bird's nest.

[0008] Furthermore, The detection unit is a near-infrared probe set on a straight or horizontal plate. The near-infrared probe is used to scan the nutritional components of individual bird's nests during the transportation process and generate a preliminary rating based on the proportion of impurity characteristic signals.

[0009] Furthermore, The stacked components are equipped with a sorting mechanism; The sorting mechanism includes a reciprocating screw rotatably disposed within the housing, a threaded ring threadedly connected to the reciprocating screw, the threaded ring being fixed to the cross frame, and the cross frame being connected to the slide frame; The sliding frame is hollow inside, with a locking pin 1 fixed to the lower left side and a locking pin 2 fixed to the upper right side. A positioning block is provided between the first and second locking pins to cooperate with the first and second locking pins to achieve the single export of bird's nest.

[0010] Furthermore, The bottom of the temporary storage box has a through groove, and the sliding frame is located directly below the through groove; In its initial state, the bird's nest is supported by the second locking pin; When the reciprocating screw drives the slide frame to move to the right, the bird's nest is transferred from pin two to pin one under the action of gravity; When the reciprocating screw drives the slide frame to move to the left, the bird's nest disengages from the locking pin and falls into the grading component.

[0011] Furthermore, The cleaning box is equipped with a vibration table; A weighing tray is placed on the vibration table; The screening box is equipped with a blower and a blower, and the screening box is connected to the impurity removal box through a ventilation opening.

[0012] Furthermore, The screening box is equipped with a baffle plate and a guide plate, and the bottom of the screening box is equipped with multiple sorting slots; Guide plate two is respectively set on the top of the partition between adjacent sorting slots; Fan 2 generates a transverse laminar flow, which is used to separate impurities based on their suspension velocity difference and allow them to fall into the corresponding sorting tank.

[0013] Furthermore, Both the sorting slots and the bottom of the trays are equipped with precision electronic balances; Precision electronic balances are used to weigh bird's nests before impurity removal, after impurity removal, and after the separation of impurities.

[0014] Furthermore, The rating component calculates the gross content and tolerance index based on weighing data.

[0015] Furthermore, The side wall of the housing is provided with a feed inlet, and a conveyor belt is provided below the feed inlet. The conveyor belt transports the raw materials to the surface of the guide rail. A waste bin is located at the bottom of the housing to collect impurities that fall from the gaps in the guide rails.

[0016] The beneficial effects of the self-grading and classification bird's nest inspection and impurity removal device in this invention are analyzed as follows: This invention utilizes a conveying component that allows bird's nests to fall naturally into collection channels of corresponding sizes based on their individual dimensions during transport. Automatic classification is achieved without the need for active identification or grasping. Furthermore, the near-infrared sensor integrated into the conveying component simultaneously performs rapid scanning and preliminary grading of nutritional components as the bird's nests pass through, providing a reference benchmark for subsequent detailed grading. This achieves a triple function of conveying, size grading, and initial quality assessment within a single process. The grading component, based on the combined action of vibration and suction, quantitatively removes loose feathers and impurities from the surface of the bird's nests using dry impurity removal. The collected impurities are then air-sorted, weighed, and used in formulas for feather content and impurity tolerance to automatically generate an objective cleanliness grade for each bird's nest, fundamentally eliminating the subjectivity and inconsistency of manual grading. After automatic classification by the conveying component, bird's nests of the same size category are temporarily stored and then sequentially exported from their stacks via a sorting mechanism. This matches the processes of the conveying and grading components, effectively avoiding congestion or idle runs and significantly improving the stability and rhythm coordination of the entire production line. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A cross-sectional schematic diagram of a self-grading and classification bird's nest inspection and impurity removal device provided for an embodiment of the present invention; Figure 2 This is a schematic diagram of the guide rail distribution; Figure 3 This is a schematic diagram showing the connection between the rectangular motion unit and the horizontal plate; Figure 4 This is a schematic diagram of the rectangular motion unit. Figure 5 This is a schematic diagram of the stacked components. Figure 6 This is a schematic diagram of the sliding frame structure; Figure 7 This is a schematic diagram showing the connection between the sliding frame and the crossbar; Figure 8 This is a cross-sectional view of the rating component.

[0019] icon: 100-Conveying assembly; 110-Guide rail; 120-Fixed seat; 130-Annular groove; 140-Slide rail; 150-Connecting rod; 151-Leaning groove; 160-Positioning pin; 161-Rectangular motion unit; 1611-Horizontal bar one; 16111-Horizontal groove; 1612-Horizontal bar two; 1613-Straight bar; 170-Horizontal plate; 171-Straight plate; 180-Partition groove; 190-Conveyor belt; 200 - Rating Components; 210 - Impurity Removal Box; 211 - Vibration Table; 212 - Tray; 220 - Sieving Box; 221 - Fan 1; 222 - Fan 2; 223 - Baffle Plate; 224 - Guide Plate 2; 230 - Ventilation Opening; 240 - Sorting Slot; 300-Stacking assembly; 310-Temporary storage box; 311-Through slot; 312-Guide plate one; 320-Reciprocating screw; 321-Threaded ring; 330-Horizontal frame; 340-Slide frame; 341-Clamping pin one; 342-Clamping pin two; 343-Positioning block; 400-Bird's Nest; 500 - Shell; 510 - Feed inlet; 520 - Miscellaneous material bin. Detailed Implementation

[0020] like Figures 1 to 8As shown, the present invention provides a self-grading and classification bird's nest 400 acceptance and impurity removal device, including a conveying component 100, a grading component 200 and a stacking component 300 disposed in a housing 500; The conveying assembly 100 includes two symmetrically arranged guide rails 110. The surface of the guide rails 110 forms a conveying surface for conveying bird's nest 400, and the distance between the two guide rails 110 gradually increases along the conveying direction. The conveying surface is provided with a detection unit for preliminary rating of bird's nest 400. The stacking assembly 300 is disposed below the conveying assembly 100 and includes a temporary storage box 310 for receiving the bird's nest 400 after being sorted by the conveying assembly 100; The rating component 200 includes a removal box 210 and a sieving box 220 for receiving individual bird's nests 400 exported from the stacking component 300 and performing removal and cleanliness rating on them.

[0021] The conveying component 100 is used for preliminary screening, size classification, and initial quality assessment of the bird's nests 400. For example... Figure 1 and Figure 2 As shown, a feed inlet 510 is provided on the side wall of the shell 500, and a conveyor belt 190 is provided below it. The operator feeds the bird's nest 400 raw material to be inspected into the feed inlet 510. The bird's nest 400 falls onto the conveyor belt 190 and is conveyed to the starting end of two symmetrically arranged guide rails 110. The surfaces of these two guide rails 110 together form the conveying surface for transporting the bird's nest 400, and the distance between the two guide rails 110 gradually increases along the conveying direction. Some small bird's nest corners, broken pieces, and other impurities will fall through the gaps in the guide rails 110 at the starting end and be collected by the waste bin 520 below.

[0022] like Figure 3 and Figure 4As shown, in order to achieve controlled conveying of bird's nest 400 on guide rail 110, conveying assembly 100 also includes a stepping conveying mechanism. This mechanism includes a fixed base 120, on which an annular groove 130 and a slide rail 140 are provided. A motor is installed inside the fixed base 120, with the motor's output end located at the center of the fixed base 120 and capable of driving a connecting rod 150 to rotate. A clearance groove 151 is provided at the end of the connecting rod 150, and a positioning pin 160 is installed within the clearance groove 151. When the motor operates, the positioning pin 160 can move along the annular groove 130, and a rectangular motion unit 161 is provided at the end of the positioning pin 160 away from the annular groove 130. The rectangular motion unit 161 includes a first horizontal bar 1611, a second horizontal bar 1612, and a straight bar 1613. The first horizontal bar 1611 and the second horizontal bar 1612 are arranged parallel to each other. Slider blocks are provided at both ends of the first horizontal bar 1611, and the sliders are slidably connected to the second horizontal bar 1612. A set of straight bars 1613 are vertically arranged at both ends of the second horizontal bar 1612. The lower end of the straight bars 1613 is fixedly connected to the horizontal plate 170. A horizontal groove 16111 is provided inside the first horizontal bar 1611, and a positioning pin 160 is engaged with the groove 16111. The sliding connection is used, with both ends of the crossbar 1611 slidably connected to the slide rail 140. The fixed base 120 has identical rectangular motion units 161 at both ends. After the motor starts, the two sets of rectangular motion units 161 synchronously perform reciprocating rectangular trajectory movements, causing the cross plate 170 connected to the rectangular motion units 161 to synchronously perform rectangular movements. The bottom of the cross plate 170 has multiple equidistantly distributed straight plates 171, with partition grooves 180 formed between adjacent straight plates 171 to accommodate individual bird's nests 400. When the cross plate 170 moves, the bird's nests 400 within these partition grooves 180 are carried along the guide rail 110 in a step-by-step conveying manner.

[0023] During the step-by-step conveying process, the bird's nest 400 undergoes two grading stages. First, a near-infrared probe, serving as a detection unit, is preferably installed in each partition groove 180. When the bird's nest 400 is conveyed within the partition groove 180, the near-infrared probe rapidly scans its nutritional components and impurity characteristics. Based on the proportion of impurity characteristic signals in the scan results, a preliminary grading of the feather content of the bird's nest 400 is made. Second, as the bird's nest 400 is continuously conveyed to the right, the spacing between the guide rails 110 continuously increases. When this spacing exceeds the current size of the bird's nest 400, the bird's nest 400 will fall between the guide rails 110. In this way, larger bird's nests 400 travel further on the conveying path than smaller bird's nests 400, thus achieving passive and automated classification based on the individual size of the bird's nest 400.

[0024] The stacking assembly 300 is located below the conveyor assembly 100 and is used for buffering and connecting processes. For example... Figure 5As shown, multiple temporary storage boxes 310 are arranged below the conveying assembly 100 along the conveying direction, each temporary storage box 310 corresponding to a size range of bird's nests 400. When bird's nests 400 fall from the guide rail 110, they enter the temporary storage box 310 corresponding to their size range. A guide plate 312 is used to assist in guiding bird's nests 400 at the classification boundary to fall accurately into the box. The bird's nests 400 are temporarily stacked in the through slots 311 of the temporary storage box 310, waiting to be exported individually.

[0025] To sequentially export the stacked bird's nests 400 individually to the grading component 200, the stacking component 300 also includes a sorting mechanism. For example... Figure 5 , Figure 6 and Figure 7 As shown, the sorting mechanism includes a linear drive component driven by a motor, which in this embodiment is a reciprocating lead screw 320. A threaded ring 321 is threadedly connected to the reciprocating lead screw 320, and the threaded ring 321 is fixed to the cross frame 330, which is connected to the slide frame 340. The sliding frame 340 is hollow inside, with a locking pin 341 fixed to the lower left side and a locking pin 342 fixed to the upper right side. A positioning block 343 is provided between the first locking pin 341 and the second locking pin 342 to cooperate with the first locking pin 341 and the second locking pin 342 to achieve the single export of the bird's nest 400.

[0026] The bottom of the temporary storage box 310 has a through groove 311, and the sliding frame 340 is located directly below the through groove 311. In the initial state, the bottommost bird's nest 400 is supported by the second locking pin 342. When the sliding frame 340 moves to the right, the bird's nest 400, being confined within the through groove 311, cannot move with it and thus slides off the second locking pin 342, where it is supported by the first locking pin 341 below. Subsequently, when the sliding frame 340 moves to the left, the bird's nest 400, blocked by the positioning block 343 fixed inside the housing 500, cannot move to the left with the first locking pin 341 and eventually detaches from the first locking pin 341, falling into the grading component 200 below. Through one reciprocating motion of the sliding frame 340, one bird's nest 400 is exported, realizing the transformation from a stacked state to a single export, ensuring the rhythm matching of subsequent grading processes.

[0027] The grading component 200 is used to perform precise impurity removal and quantitative cleanliness rating on individual bird's nests 400. For example... Figure 1 and Figure 8 As shown, the rating component 200 includes a cleaning box 210 and a sieving box 220. The cleaning box 210 is equipped with a vibrating table 211; a weighing tray 212 is placed on the vibrating table 211; the sieving box 220 is equipped with a first fan 221 and a second fan 222, and the sieving box 220 is connected to the cleaning box 210 through a ventilation port 230.

[0028] The bird's nest 400 falling from the sorting mechanism enters the impurity removal box 210 and lands on the tray 212 equipped with a precision electronic balance. At this time, the precision electronic balance records the initial weight of the bird's nest 400. Subsequently, the vibration table 211 is activated, causing the tray 212 and the bird's nest 400 to vibrate at high frequency, shaking off heavier impurities such as sand and eggshell fragments trapped in the gaps of the bird's nest strands.

[0029] The screening box 220 is equipped with a baffle 223 and a guide plate 224. The bottom of the screening box 220 is equipped with multiple sorting slots 240. The guide plate 224 is correspondingly set on the top of the partition between adjacent sorting slots 240. The fan 222 generates a transverse laminar flow air, which is used to separate impurities based on the difference in the suspension velocity of impurities and let them fall into the corresponding sorting slots 240.

[0030] Simultaneously with vibration, fan 221 inside the sieving box 220 starts, generating a suction airflow through the vent 230 on the impurity removal box 210. This airflow draws light and heavy component impurities (such as bird feathers, grass clippings, and sand particles) that have detached from the bird's nest 400 into the impurity bin of the sieving box 220. Inside the impurity bin, the impurities first collide with the baffle 223 to slow down and disperse. At this time, fan 222 starts, generating a gentle laminar flow that separates the falling impurities. Based on the differences in suspension velocity (i.e., differences in weight and density) of different impurities, the impurities are blown to different distances: Ultralight component impurities (such as swallow feathers) are blown into the furthest sorting trough 240; Medium-heavy component impurities (such as grass clippings and fine sand) fall into the sorting trough 240 in the middle position; Heavy component impurities (such as eggshells and coarse sand) are almost unaffected by wind and fall vertically into the nearest sorting trough 240.

[0031] Each sorting compartment 240 is also equipped with a precision electronic balance at its bottom for weighing the three components of impurities separately. Simultaneously, the tray 212 in the impurity removal box 210 weighs the pre-cleaned bird's nest 400 again to obtain the weight after impurity removal. The processor within the device performs data verification to check whether the weight reduction of the bird's nest 400 matches the total weight of the three impurities, ensuring data reliability.

[0032] After the data is confirmed to be correct, the processor automatically calculates two core cleanliness indicators: hair content and impurity index, among which: Feather content = (weight of ultralight component impurities / initial weight of bird's nest) × 100%. This indicator directly reflects the content of fine feathers in bird's nest 400 and can be automatically graded according to a preset threshold. This result is also compared and verified with the preliminary rating result of the near-infrared probe during transportation, achieving double confirmation.

[0033] The impurity index is calculated as follows: 1 × weight of ultralight component impurities + 5 × weight of medium and heavy component impurities + 10 × weight of heavy component impurities. This formula quantifies the severity of impurities by assigning higher weights to medium and heavy component impurities. An abnormally high impurity index may indicate that Bird's Nest 400 contains large foreign objects, which can lead to a downgrade or classification as a substandard product.

[0034] The working process of this device is as follows: Step S1: Feeding and Coarse Screening. Workers feed the bird's nest raw materials into the feed inlet 510. The bird's nests fall onto the conveyor belt 190 and are conveyed to the surface of the guide rail 110. During the conveying process, impurities such as small bird's nest corners and broken pieces fall directly from the gaps in the guide rails and are collected by the waste bin 520 at the bottom.

[0035] Step S2: Stepping Conveying and Preliminary Evaluation. The conveying assembly 100 is started, and the rectangular motion unit 161 drives the horizontal plate 170 and the vertical plate 171 to perform a stepping motion along a rectangular trajectory, pushing the material to the right. During this process, the detection unit scans the bird's nest in the partition groove 180 to generate preliminary rating data.

[0036] Step S3: Size Classification and Temporary Storage. As the spacing between the guide rails 110 gradually increases, bird's nests of different sizes fall sequentially at their corresponding positions. Larger bird's nests are transported over a longer distance, while smaller bird's nests are transported over a shorter distance. After falling, the bird's nests are guided by guide plate 312 into their corresponding temporary storage boxes 310 for stacking and temporary storage.

[0037] Step S4: Single sorting and export. The stacking component 300 is activated, and the reciprocating screw 320 drives the sliding frame 340 to move back and forth. Through the coordinated action of the locking pin 1 341 and the locking pin 2 342, and with the positioning block 343 limiting the movement, the bird's nests stacked in the temporary storage box 310 are peeled off and exported one by one, ensuring that only one bird's nest falls into the grading component 200 at a time, thus achieving process cycle matching.

[0038] Step S5: Vibration Removal and Air Separation. After the bird's nest falls onto the tray 212 of the removal box 210 for weighing, the vibration table 211 is activated to shake off heavy impurities. Simultaneously, the blower 221 draws in light and heavy impurities and sends them together into the sieving box 220. The blower 222 generates a transverse laminar flow, which, in conjunction with the baffle 223 and the guide plate 224, separates the impurities into ultra-light component impurities, medium-heavy component impurities, and heavy component impurities based on the difference in suspension velocity. These components fall into different sorting troughs 240 at the bottom.

[0039] Step S6: Data Verification and Grading. A precision electronic balance is used to weigh the impurities in each sorting compartment and the bird's nest after impurity removal. The feather content and impurity tolerance index are calculated using the formulas, and the preliminary rating from Step S2 is used for double verification to ultimately generate the objective cleanliness grade of the bird's nest.

[0040] In summary, this invention seamlessly integrates mechanized size classification, buffer sorting, dry impurity removal, air separation and weighing, and data-driven rating into one system, achieving automation, standardization, and objectivity in the acceptance of bird's nest raw materials. This greatly improves acceptance efficiency and rating accuracy, and solves the pain points of existing technologies, such as the strong subjectivity and low efficiency of manual rating, as well as the high cost and limited functionality of existing equipment.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A self-grading and classification device for inspecting and removing impurities from bird's nests, characterized in that: Includes a conveying assembly (100), a rating assembly (200), and a stacking assembly (300) disposed within a housing (500); The conveying assembly (100) includes two symmetrically arranged guide rails (110), the surface of which forms a conveying surface for conveying bird's nest (400), and the distance between the two guide rails (110) gradually increases along the conveying direction. The conveying surface is provided with a detection unit for preliminary rating of bird's nest (400). The stacking assembly (300) is disposed below the conveying assembly (100) and includes a temporary storage box (310) for receiving bird's nests (400) sorted by the conveying assembly (100). The rating component (200) includes a removal box (210) and a sieving box (220) for receiving individual bird's nests (400) exported from the stacking component (300) and removing impurities and rating their cleanliness.

2. The bird's nest inspection and impurity removal device for self-grading and classification according to claim 1, characterized in that: The conveying assembly (100) also includes a fixed base (120), which is provided with an annular groove (130) and a slide rail (140). A connecting rod (150) is rotatably connected to the fixed base (120), and a rectangular motion unit (161) is hinged to the end of the connecting rod (150) through a positioning pin (160). The rectangular motion unit (161) slides in conjunction with the slide rail (140) to drive the horizontal plate (170) to reciprocate. The bottom of the horizontal plate (170) is provided with a plurality of equally spaced straight plates (171), and a partition groove (180) is formed between adjacent straight plates (171) to accommodate a single bird's nest (400).

3. The bird's nest inspection and impurity removal device for self-grading and classification according to claim 2, characterized in that: The detection unit is a near-infrared probe set on a straight plate (171) or a horizontal plate (170). The near-infrared probe is used to scan the nutritional components of individual bird's nests (400) during the transportation of bird's nests (400) and generate a preliminary rating based on the proportion of impurity characteristic signals.

4. The bird's nest inspection and impurity removal device for self-grading and classification according to claim 3, characterized in that: The stacking assembly (300) is provided with a sorting mechanism; The sorting mechanism includes a reciprocating screw (320) rotatably disposed in a housing (500), a threaded ring (321) threadedly connected to the reciprocating screw (320), the threaded ring (321) being fixed on a cross frame (330), and the cross frame (330) being connected to a sliding frame (340). The sliding frame (340) is hollow inside, with a locking pin 1 (341) fixed on the lower left side and a locking pin 2 (342) fixed on the upper right side. A positioning block (343) is provided between the first locking pin (341) and the second locking pin (342) to cooperate with the first locking pin (341) and the second locking pin (342) to achieve the single export of the bird's nest (400).

5. The bird's nest inspection and impurity removal device for self-grading and classification according to claim 4, characterized in that: The temporary storage box (310) has a through groove (311) at the bottom, and the sliding frame (340) is located directly below the through groove (311); In its initial state, the bird's nest (400) is supported by the second locking pin (342); When the reciprocating screw (320) drives the slide frame (340) to move to the right, the bird's nest (400) is transferred from the second locking pin (342) to the first locking pin (341) under the action of gravity; When the reciprocating screw (320) drives the slide (340) to move to the left, the bird's nest (400) disengages from the locking pin (341) and falls into the grading component (200).

6. The bird's nest inspection and impurity removal device for self-grading and classification according to claim 5, characterized in that: The cleaning box (210) is equipped with a vibration table (211). A weighing tray (212) is placed on the vibration table (211). The sieving box (220) is equipped with a first fan (221) and a second fan (222). The sieving box (220) is connected to the impurity removal box (210) through a ventilation port (230).

7. The bird's nest inspection and impurity removal device for self-grading and classification according to claim 6, characterized in that: The sieve box (220) is equipped with a baffle plate (223) and a guide plate (224), and the bottom of the sieve box (220) is equipped with multiple sorting slots (240). The second guide plate (224) is correspondingly disposed on the top of the partition between adjacent sorting slots (240); The second fan (222) generates a transverse laminar flow airflow, which is used to separate impurities based on the difference in suspension velocity of the impurities and let them fall into the corresponding sorting trough (240).

8. The bird's nest inspection and impurity removal device for self-grading and classification according to claim 7, characterized in that: Both the bottom of the sorting slot (240) and the tray (212) are equipped with precision electronic balances; The precision electronic balance is used to weigh the bird's nest (400) before impurity removal, the bird's nest (400) after impurity removal, and the separated impurities.

9. A self-grading and classification bird's nest inspection and impurity removal device according to claim 8, characterized in that: The rating component (200) calculates the gross content and bulkiness index based on the weighing data.

10. A self-grading and classification bird's nest inspection and impurity removal device according to claim 9, characterized in that: The housing (500) has a feed inlet (510) on its side wall, and a conveyor belt (190) is provided below the feed inlet (510). The conveyor belt (190) transports the raw material to the surface of the guide rail (110). The bottom of the housing (500) is provided with a waste bin (520) for collecting impurities that fall from the gap of the guide rail (110).

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