Mussel grading and screening device

Abstract

A mussel grading and screening device, comprising screening cylinders (1). A first U-shaped hopper (2) and a second U-shaped hopper (3) are respectively fixed to two ends of the screening cylinders; the first U-shaped hopper and the second U-shaped hopper are both in communication with the interiors of the screening cylinders; a plurality of first screening holes (4) and second screening holes (5) run through the peripheral side surfaces of the screening cylinders; the diameter of the first screening holes is smaller than the diameter of the second screening holes; a conveying auger (6) is rotatably arranged in the first screening cylinder and the second screening cylinder; and a feeding assembly (7) is fixed to one end of the conveying auger. The conveying auger is provided to convey mussels, and the first screening holes and the second screening holes are used for grading and screening; the conveying auger can also drive loading containers (10) and scooping plates (11) to rotate; and when each scooping plate rotates into a feeding container (13), mixed mussels inside the feeding container are scooped into a loading container, and when the loading container rotate to a position above the first U-shaped hopper, the mussels fall into the first U-shaped hopper along a discharging notch, thereby saving labor.

Description

A mussel grading and screening device Technical Field

[0001] This invention belongs to the field of screening device technology, and in particular relates to a mussel grading and screening device. Background Technology

[0002] Mussels are marine mollusks and a type of bivalve mollusc. Their body structure is basically the same as that of clams, oysters, and mussels. Before being packaged, mussels need to be graded and screened. Mature mussels are selected for further processing, while young mussels are released back into the sea for aquaculture to avoid overfishing that could lead to resource depletion.

[0003] Currently, mixed mussels are usually sorted and graded manually. However, manual sorting is inefficient. Therefore, sorting machines have been developed to replace manual sorting. However, these machines require manual labor to pour the mixed mussels into the machine for sieving, which consumes a lot of manpower. Furthermore, the machine cannot sort the mixed mussels in one go. Therefore, manual labor is required to repeatedly pour the sorted mussels from the discharge end to the feed end and back into the machine, resulting in repetitive and inefficient work.

[0004] To address these issues, we provide a mussel grading and screening device. Summary of the Invention

[0005] The purpose of this invention is to provide a mussel grading and screening device. A conveyor auger transports mixed mussels inside a screening cylinder, where they are graded and screened through a first and second screening hole. Simultaneously, the conveyor auger rotates, causing the connecting frame and the ring to rotate, which in turn rotates the feeding frame and the holding plate. When the holding plate rotates into the feeding frame, it scoops up the mixed mussels from the feeding frame and transfers them into the feeding frame. When the feeding frame rotates above the first U-shaped frame, the mixed mussels in the feeding frame fall into the first U-shaped frame along the discharge chute. A recovery frame connects the second U-shaped frame and the feeding frame, forming a closed loop. This allows the mussels to automatically return to the feeding frame for further screening, solving the problem of existing screening machines requiring manual, repetitive, and inefficient manual labor.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0007] This invention relates to a mussel grading and screening device, comprising a screening cylinder; both ends of the screening cylinder are open; a first U-shaped frame and a second U-shaped frame are respectively fixed at both ends of the screening cylinder; the first U-shaped frame opens upward; the second U-shaped frame opens downward; both the first U-shaped frame and the second U-shaped frame are connected to the interior of the screening cylinder; a plurality of first screening holes and second screening holes are provided through the circumferential side of the screening cylinder; the diameter of the first screening hole is smaller than the diameter of the second screening hole; each first screening hole is close to the first U-shaped frame; each second screening hole is close to the second U-shaped frame; a conveying auger is rotatably arranged between the first screening cylinder and the second screening cylinder; a feeding component is fixed at one end of the conveying auger.

[0008] The present invention is further configured such that: the feeding assembly includes a connecting frame fixedly connected to one end of the conveying auger; a ring is fixed to the side of the connecting frame; a plurality of feeding frames are uniformly fixed to the side of the ring; a material holding plate is fixed to the surface of the feeding frame; and a discharge groove is opened on the surface of the feeding frame.

[0009] The present invention is further configured such that: a feeding frame is provided below the first U-shaped frame; mussels are placed in the feeding frame; and the distance between the surface of the feeding frame and the first U-shaped frame is less than the distance between the holding plate and the first U-shaped plate.

[0010] The present invention is further configured such that: a recycling frame is connected between the second U-shaped frame and the feeding frame; both sides of the recycling frame are open; both sides of the recycling frame are connected to the interior of the second U-shaped frame and the feeding frame respectively; the side of the recycling frame closer to the second U-shaped frame is higher than the side closer to the feeding frame.

[0011] The present invention is further configured such that: two receiving buckets are symmetrically fixed on the circumferential side of the screening cylinder; the inner diameter of the receiving bucket is larger than the outer diameter of the screening cylinder; and the gap between the inner wall of the receiving bucket and the outer circumferential side of the screening cylinder forms a feeding cavity.

[0012] The present invention is further configured such that: the inner wall of one receiving bucket is connected to the inside of the screening cylinder through a first screening hole; the inner wall of the other receiving bucket is connected to the inner wall of the screening cylinder through a second screening hole; two discharge frames are symmetrically fixed through the periphery of the receiving bucket; the opening of the discharge frame is obliquely downward.

[0013] The present invention is further configured such that: a first pulley (18) is fixed at one end of the conveying auger (6); a second pulley (19) is rotatably provided on the side of the second U-shaped frame (3); a belt (20) is provided for transmission between the first pulley (18) and the second pulley (19); and a servo motor (21) is fixed on the side of the second U-shaped frame (3).

[0014] The invention is further configured such that: a sliding plate is slidably disposed through the side of the second U-shaped frame; a push plate and an arc-shaped plate are respectively fixed on the two opposite sides of the sliding plate; a return spring is connected between the arc-shaped plate and the second U-shaped frame; a turntable is fixed on the side of the second pulley; a toggle shaft is fixed on the side of the turntable; a toggle ball is fixed at one end of the toggle shaft; and the peripheral side of the toggle ball is adapted to the peripheral side of the arc-shaped plate.

[0015] The present invention has the following beneficial effects:

[0016] 1. This invention uses a conveying auger to transport mixed mussels inside a screening cylinder. The mussels are then graded and screened through a first and second screening hole. As the conveying auger rotates, it also drives the connecting frame and the ring to rotate, which in turn drives the feeding frame and the holding plate to rotate. When the holding plate rotates into the feeding frame, it scoops up the mixed mussels inside the feeding frame and puts them into the feeding frame. When the feeding frame rotates to the top of the first U-shaped frame, the mixed mussels in the feeding frame fall into the first U-shaped frame along the discharge chute, saving manpower.

[0017] 2. This invention sets up a recycling frame, which connects the second U-shaped frame and the feeding frame to form a closed loop, allowing mussels to automatically return to the feeding frame for further screening. The recycling frame is tilted towards the side closer to the feeding frame, making it easier for the mussels to return to the feeding frame and preventing them from getting stuck in the recycling frame, thus improving screening efficiency.

[0018] 3. This invention uses a first pulley, a second pulley, and a belt to drive a turntable, a turning shaft, and a turning ball to rotate. The turning ball first squeezes the arc-shaped plate, causing it to slide and simultaneously compressing the return spring. At the same time, it drives the sliding plate and the push plate to push inside the recycling frame. After the turning ball disengages from the arc-shaped plate, the return spring pushes the arc-shaped plate, the sliding plate, and the push plate to slide back, thereby enabling the push plate to slide back and forth inside the recycling frame, pushing the mussels towards the recycling frame and accelerating the return of the mussels to the feeding frame. This also further prevents the mussels from accumulating inside the recycling frame, improving the efficiency of grading and screening.

[0019] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 is a schematic diagram of a mussel grading and screening device.

[0022] Figure 2 is a schematic diagram of the structure of Figure 1 from another perspective.

[0023] Figure 3 is an enlarged view of region A in Figure 2 of the present invention.

[0024] Figure 4 is a partial cross-sectional view of Figure 1 of the present invention.

[0025] Figure 5 is an enlarged view of region B in Figure 4 of the present invention.

[0026] Figure 6 is a cross-sectional view of the screening tube of the present invention.

[0027] Figure 7 is a schematic diagram of the feeding assembly of the present invention.

[0028] Figure 8 is a schematic diagram of the receiving bucket of the present invention.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1-Screening cylinder, 2-First U-shaped frame, 3-Second U-shaped frame, 4-First screening hole, 5-Second screening hole, 6-Conveying auger, 7-Feeding assembly, 8-Connecting frame, 9-Ring, 10-Feeding frame, 11-Material holding plate, 12-Discharge chute, 13-Feeding frame, 14-Recycling frame, 15-Receiving bucket, 16-Discharge chamber, 17-Discharge frame, 18-First pulley, 19-Second pulley, 20-Belt, 21-Servo motor, 22-Slide plate, 23-Push plate, 24-Arc plate, 25-Reset spring, 26-Actuating shaft, 27-Actuating ball. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] For a specific embodiment, please refer to Figures 1-8. This invention is a mussel grading and screening device, including a screening cylinder 1; both ends of the screening cylinder 1 are open; a first U-shaped frame 2 and a second U-shaped frame 3 are respectively fixed at both ends of the screening cylinder 1; the first U-shaped frame 2 opens upward; the second U-shaped frame 3 opens downward; both the first U-shaped frame 2 and the second U-shaped frame 3 are connected to the interior of the screening cylinder 1; a plurality of first screening holes 4 and second screening holes 5 are provided through the circumference of the screening cylinder 1; the diameter of the first screening hole 4 is smaller than the diameter of the second screening hole 5; each first screening hole 4 is close to the first U-shaped frame 2; each second screening hole 5 is close to the second U-shaped frame 3; a conveying auger 6 is rotatably arranged between the first screening cylinder 1 and the second screening cylinder 1; a feeding component 7 is fixed at one end of the conveying auger 6.

[0033] The operation process of this embodiment is as follows: First, the mixed mussels are placed directly below the feeding component 7, and the conveying auger 6 is driven to rotate, thereby driving the feeding component 7 to rotate and transport the mixed mussels into the first U-shaped frame 2. The conveying auger 6 transports the mixed mussels in the first U-shaped frame 2 along the screening cylinder 1 to the second U-shaped frame 3. When the mixed mussels pass through the first screening hole 4, some of the smaller mussels fall out of the screening cylinder 1 from the first screening hole 4 and are collected in a container. When the mixed mussels pass through the second screening hole 5, some of the larger mussels fall out of the screening cylinder 1 from the second screening hole 5 and are collected in another container. The mussels that are successfully screened in a single screening are transported to the second U-shaped frame 3 by the conveying auger 6 and fall out of the second U-shaped frame 3 for secondary screening. After multiple screenings, the mixed mussels are finally graded and screened.

[0034] In this example, the conveyor auger 6 is used to transport the mixed mussels inside the screening cylinder 1. The mussels are then graded and screened through the first screening hole 4 and the second screening hole 5. As the conveyor auger 6 rotates, the feeding component 7 automatically feeds the mussels, saving manpower.

[0035] For a specific embodiment 2, please refer to Figures 1-8. Based on the specific embodiment 1, the feeding assembly 7 includes a connecting frame 8 that is fixedly connected to one end of the conveying auger 6; a ring 9 is fixed to the side of the connecting frame 8; a plurality of feeding frames 10 are evenly fixed to the side of the ring 9; a holding plate 11 is fixed to the surface of the feeding frame 10; and a discharge groove 12 is opened on the surface of the feeding frame 10.

[0036] Specifically, a feeding frame 13 is provided below the first U-shaped frame 2; mussels are placed inside the feeding frame 13; the distance between the surface of the feeding frame 13 and the first U-shaped frame 2 is less than the distance between the holding plate 11 and the first U-shaped frame 2.

[0037] Furthermore, a recycling frame 14 is connected between the second U-shaped frame 3 and the feeding frame 13; both sides of the recycling frame 14 are open; both sides of the recycling frame 14 are connected to the interior of the second U-shaped frame 3 and the feeding frame 13 respectively; the side of the recycling frame 14 closer to the second U-shaped frame 3 is higher than the side closer to the feeding frame 13.

[0038] Furthermore, two receiving buckets 15 are symmetrically fixed on the side of the screening cylinder 1; the inner diameter of the receiving bucket 15 is larger than the outer diameter of the screening cylinder 1; the gap between the inner wall of the receiving bucket 15 and the outer side of the screening cylinder 1 forms the feeding chamber 16.

[0039] Furthermore, the inner wall of one receiving hopper 15 is connected to the inside of the screening cylinder 1 through the first screening hole 5; the inner wall of the other receiving hopper 15 is connected to the inner wall of the screening cylinder 1 through the second screening hole 6; two discharge frames 17 are symmetrically fixed through the periphery of the receiving hopper 15; the opening of the discharge frame 17 is set at an angle downward.

[0040] The operation process of this embodiment is as follows: First, the mussels processed in the previous step are placed into the feeding frame 13. Then, the conveying auger 6 is rotated, which drives the connecting frame 8 and the ring 9 to rotate, thereby driving all the feeding frames 10 on the side of the ring 9 to rotate. The feeding frames 10 drive the holding plate 11 to rotate. The distance between the surface of the feeding frame 13 and the first U-shaped frame 2 is less than the distance between the holding plate 11 and the first U-shaped frame 2, so that the holding plate 11 can contact the mixed mussels inside the feeding frame 13. When the holding plate 11 rotates into the feeding frame 13, it picks up the mixed mussels inside the feeding frame 13 and puts them into the feeding frame 10. Then, the feeding frame 10 continues to rotate to the top of the first U-shaped frame 2, and the mixed mussels in the feeding frame 10 fall into the first U-shaped frame 2 along the discharge chute 12.

[0041] Then, the conveyor auger 6 transports the mixed mussels along the screening cylinder 1 to the second U-shaped frame 3. When the mixed mussels pass through the first screening hole 4, some of the smaller mussels fall out of the screening cylinder 1 through the first screening hole 4 and into the corresponding feeding chamber 16. They then fall out along the discharge frame 17 on the receiving bucket 15 and are collected in a container. When the mixed mussels pass through the second screening hole 5, some of the larger mussels fall out of the screening cylinder 1 through the second screening hole 5 and into the corresponding feeding chamber 16. They then fall out along the discharge frame 17 on the receiving bucket 15 and are collected in another container.

[0042] Mussels that have not been screened in a single screening are conveyed by the conveying auger 6 to the second U-shaped frame 3 and fall into the recovery frame 14. The inclined setting of the recovery frame 14 makes it easier for the mussels to fall back into the feeding frame 13. Then, they are transported again by the feeding component 7 to the first U-shaped frame 2 for screening as described above. After multiple rounds of screening, the mussels are graded and screened.

[0043] In this embodiment, by setting up a recycling frame 14, the second U-shaped frame 3 and the feeding frame 13 are connected to form a closed loop, so that the mussels can automatically return to the inside of the feeding frame 13 for further screening. In addition, the recycling frame 14 is tilted towards the side closer to the feeding frame 13, which makes it easier for the mussels to return to the inside of the feeding frame 13, preventing the mussels from getting stuck in the recycling frame 14 and improving the screening efficiency.

[0044] In the third specific embodiment, please refer to Figures 1-8. Based on the first and second specific embodiments, a first pulley 18 is fixed at one end of the conveying auger 6; a second pulley 19 is rotatably arranged on the side of the second U-shaped frame 3; a belt 20 is provided for transmission between the first pulley 18 and the second pulley 19; a servo motor 21 is fixed on the side of the second U-shaped frame 3, and the output end of the servo motor 21 is fixedly connected to the first pulley 18.

[0045] Specifically, a sliding plate 22 is slidably provided through the side of the second U-shaped frame 3; a push plate 23 and an arc plate 24 are respectively fixed on the two opposite sides of the sliding plate 22; a return spring 25 is connected between the arc plate 24 and the second U-shaped frame 3; a turntable is fixed on the side of the second pulley 19; a toggle shaft 26 is fixed on the side of the turntable; a toggle ball 27 is fixed at one end of the toggle shaft 26; the periphery of the toggle ball 27 is adapted to the periphery of the arc plate 24.

[0046] The operation process of this embodiment is as follows: the servo motor 21 drives the first pulley 18 to rotate, which in turn drives the conveyor auger 6 to rotate and transport mussels. The first pulley 18 drives the second pulley 19 to rotate through the transmission action of the belt 20, which in turn drives the turntable to rotate, which in turn drives the actuating shaft 26 and the actuating ball 27 to rotate. When the actuating ball 27 and the arc plate 24 are in contact and then disengaged, the arc plate 24 is first squeezed, causing the arc plate 24 to slide closer to the second U-shaped frame 3 and at the same time compressing the return spring 25. At the same time, the arc plate 24 drives the slide plate 22 and the pusher... The sliding of plate 23 causes the pusher plate 23 to push inside the recycling frame 14. After the ball 27 is disengaged from the arc plate 24, the elastic force of the return spring 25 pushes the arc plate 24 to slide away from the second U-shaped frame 3, thereby causing the slide plate 22 and the pusher plate 23 to slide in opposite directions. This allows the pusher plate 23 to slide back and forth inside the recycling frame 14, pushing the mussels from the second U-shaped frame 3 towards the recycling frame 14, accelerating the return of the mussels to the inside of the feeding frame 13. It also further prevents the mussels from accumulating inside the recycling frame 14, improving the efficiency of grading and screening.

[0047] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, 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.

[0048] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A mussel grading and screening device, comprising a screening cylinder (1); wherein both ends of the screening cylinder (1) are open; characterized in that: The screening cylinder (1) is fixed with a first U-shaped frame (2) and a second U-shaped frame (3) at both ends respectively; the first U-shaped frame (2) opens upward; the second U-shaped frame (3) opens downward; the first U-shaped frame (2) and the second U-shaped frame (3) are both connected to the inside of the screening cylinder (1); The screening cylinder (1) has several first screening holes (4) and second screening holes (5) through its circumferential side; the diameter of the first screening hole (4) is smaller than the diameter of the second screening hole (5); Each of the first screening holes (4) is close to the first U-shaped frame (2); each of the second screening holes (5) is close to the second U-shaped frame (3); A conveying auger (6) is rotatably arranged between the first screening cylinder (1) and the second screening cylinder (1); a feeding component (7) is fixed at one end of the conveying auger (6).

2. The mussel grading and screening device according to claim 1, characterized in that, The feeding assembly (7) includes a connecting frame (8) fixedly connected to one end of the conveying auger (6); a ring (9) is fixed on the side of the connecting frame (8); a plurality of feeding frames (10) are evenly fixed on the side of the ring (9); a material holding plate (11) is fixed on the surface of the feeding frame (10); and a discharge groove (12) is opened on the surface of the feeding frame (10).

3. The mussel grading and screening device according to claim 2, characterized in that, A feeding frame (13) is provided below the first U-shaped frame (2); mussels are placed in the feeding frame (13); the distance between the surface of the feeding frame (13) and the first U-shaped frame (2) is less than the distance between the holding plate (11) and the first U-shaped frame (2).

4. The mussel grading and screening device according to claim 3, characterized in that, A recycling frame (14) is connected between the second U-shaped frame (3) and the feeding frame (13); the recycling frame (14) has openings on both sides; the recycling frame (14) is connected to the interior of the second U-shaped frame (3) and the feeding frame (13) on both sides respectively; the side of the recycling frame (14) closer to the second U-shaped frame (3) is higher than the side closer to the feeding frame (13).

5. The mussel grading and screening device according to claim 4, characterized in that, Two receiving buckets (15) are symmetrically fixed on the periphery of the screening cylinder (1); the inner diameter of the receiving bucket (15) is larger than the outer diameter of the screening cylinder (1); the gap between the inner wall of the receiving bucket (15) and the outer periphery of the screening cylinder (1) forms a feeding chamber (16).

6. The mussel grading and screening device according to claim 5, characterized in that, The inner wall of one receiving bucket (15) is connected to the inside of the screening cylinder (1) through the first screening hole (5); the inner wall of the other receiving bucket (15) is connected to the inner wall of the screening cylinder (1) through the second screening hole (6); two discharge frames (17) are symmetrically fixed through the periphery of the receiving bucket (15); the opening of the discharge frame (17) is set at an angle downward.

7. A mussel grading and screening device according to claim 6, characterized in that, The conveying auger (6) is fixed with a first pulley (18) at one end; a second pulley (19) is rotatably arranged on the side of the second U-shaped frame (3); a belt (20) is provided between the first pulley (18) and the second pulley (19); a servo motor (21) is fixed on the side of the second U-shaped frame (3).

8. A mussel grading and screening device according to claim 6, characterized in that, A sliding plate (22) is slidably disposed on the side of the second U-shaped frame (3); a push plate (23) and an arc plate (24) are fixed on the two opposite sides of the sliding plate (22); a return spring (25) is connected between the arc plate (24) and the second U-shaped frame (3); a turntable is fixed on the side of the second pulley (19); a toggle shaft (26) is fixed on the side of the turntable; a toggle ball (27) is fixed at one end of the toggle shaft (26); the periphery of the toggle ball (27) is adapted to the periphery of the arc plate (24).

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