Fish and shrimp weighing mechanism

Abstract

The utility model discloses a fish and shrimp weighing mechanism, including stand, weighing assembly, collection bucket, and the stand top is connected with the feeding hopper and has the discharge bin at the bottom, and the weighing assembly is located one side of stand, and the weighing assembly includes the chassis, and the conveying frame is equipped with the chassis top and is connected with a plurality of sensor support between the conveying frame and the chassis, and the collection bucket is equipped with the discharge bin bottom, through "conveying - weighing integration " design, and the conveying frame is as the core carrier of fish and shrimp conveying, and its bottom is directly connected with the weighing sensor through the sensor support, and the overall weight of conveying frame is evenly transferred to the weighing sensor, and when fish and shrimp move on the conveying belt, the weighing sensor can capture the total weight change of conveying frame, conveying belt and fish and shrimp, and fish and shrimp do not need to be transferred to the independent weighing platform, and at the same time, after the independent weighing platform is omitted, the overall layout of equipment is more compact, and the equipment placement plan in the workshop is greatly simplified, and the indirect cost of site occupation is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of fish and shrimp weighing technology, specifically relating to a fish and shrimp weighing mechanism. Background Technology

[0002] In the aquaculture, fishing and processing industry, the weighing of fish and shrimp products is a core link that runs through the purchase and pricing, grading and sorting, processing and packaging and market circulation. Its weighing efficiency and accuracy directly affect the economic benefits and operational efficiency of each link in the industrial chain. As the aquaculture industry develops towards large-scale and intensive production, the traditional manual weighing mode can no longer meet the needs of large-scale and continuous production. Manual weighing not only requires frequent handling of fish and shrimp, which is labor-intensive and inefficient, but also the struggle and water loss of fish and shrimp during the handling process can easily lead to measurement errors. At the same time, human contact may also increase the damage rate of fish and shrimp, affecting product quality.

[0003] To address the pain points of manual weighing, mechanically assisted weighing equipment has gradually emerged in the industry. However, most of these equipment adopt a "conveying-weighing separation" design logic: fish and shrimp are transferred to an independent weighing platform (such as an electronic platform scale or weighbridge) via a conveyor belt. After weighing, they are transferred to the next process via another conveying mechanism. Although this type of equipment reduces some manual labor, it has certain drawbacks. The conveying path needs to be switched multiple times during the transfer process, which prolongs the overall processing cycle and makes it difficult to adapt to high-speed processing production lines. Furthermore, the installation of an independent weighing platform requires additional space, the overall layout of the equipment is complex, and the height difference and connection gap between the weighing platform and the conveyor belt can easily cause fish and shrimp to spill, increasing material loss. Utility Model Content

[0004] The purpose of this invention is to provide a fish and shrimp weighing mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fish and shrimp weighing mechanism, comprising:

[0006] A vertical frame, the top of which is connected to a feeding hopper and the bottom of which is connected to a discharging bin;

[0007] A weighing assembly is provided on one side of the upright frame and is used to transport and weigh the fish and shrimp falling out of the feeding bin. The weighing assembly includes a base frame and a conveyor frame. The conveyor frame is located on the top of the base frame and several sensor brackets are connected between the conveyor frame and the base frame. The fish and shrimp are transported through the conveyor frame, and the weighing function is achieved by means of the weighing sensors installed on the sensor brackets.

[0008] The collection bucket, located at the bottom of the feeding hopper, is used to collect the water that drains out during the process of fish and shrimp being fed onto the conveyor frame.

[0009] Preferably, the conveyor frame has a drive roller and a driven roller rotatably connected at both ends by bearings. A conveyor belt is wound around the drive roller and the driven roller. The conveyor frame is equipped with a servo motor, and the output shaft of the servo motor is connected to a first drive component, which provides a power support structure for the operation of the conveyor belt, so that the conveyor belt can rotate stably and cyclically, thereby realizing the smooth transport of fish and shrimp on the conveyor frame.

[0010] Preferably, one end of the drive roller is connected to a second drive component, and the first drive component and the second drive component are connected by a transmission component to form a power transmission path, so as to stably transmit the power of the servo motor to the drive roller and ensure that the drive roller can drive the conveyor belt to run at a uniform speed.

[0011] Preferably, the conveyor frame is equipped with several photoelectric sensors mounted on a bracket to monitor the distribution, stacking height, and material shortage of fish and shrimp on the conveyor belt in real time, providing data reference for subsequent adjustments to the feeding amount and conveying speed.

[0012] Preferably, the feeding bin is connected to a feeding hopper, and the top of the feeding hopper is connected to the feeding hopper. The bottom sides of the feeding hopper are hinged with opening and closing plates through hinge seats to guide the fish and shrimp in the feeding hopper to enter the feeding stage. The size of the feeding hopper outlet is adjusted by the opening and closing state of the opening and closing plates to control the falling of the fish and shrimp.

[0013] Preferably, electric cylinders are installed at both ends of the bottom of the hopper, and the push rods of the electric cylinders are connected to moving blocks. The two ends of the moving blocks are hinged to pull rods through hinge seats, and the other end of the pull rods is hinged to one end of the bottom of the opening and closing plate through the hinge seats. Using the electric cylinders as a power source, the opening and closing plate is driven to rotate around the hinge seats through the linkage of the moving blocks and the pull rods, so as to accurately adjust the feeding gap and control the falling speed of fish and shrimp.

[0014] Preferably, the bottom of the feeding hopper is connected to a guide hopper and one end of the guide hopper extends to the conveyor belt. The bottom of the guide hopper is provided with a draining mesh plate. The guide hopper can accurately guide the fish and shrimp falling from the feeding hopper to the conveyor belt, and at the same time, the draining mesh plate separates the water on the surface of the fish and shrimp to avoid the water affecting the weighing accuracy.

[0015] Preferably, a control box is installed on the upright frame, which serves as the control core of the mechanism, enabling functions such as regulating the operating status of each component, processing and displaying weighing data, and storing operating parameters.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] (1) By adopting the “integrated conveying and weighing” design, the conveyor frame is the core carrier for conveying fish and shrimp. Its bottom is directly connected to the weighing sensor through the sensor bracket, ensuring that the overall weight of the conveyor frame is evenly transferred to the weighing sensor. When the fish and shrimp move on the conveyor belt, the weighing sensor can capture the changes in the total weight of the conveyor frame, the conveyor belt and the fish and shrimp in real time. There is no need to transfer the fish and shrimp to an independent weighing platform, which fundamentally eliminates the time loss and spillage risk in the transfer process. At the same time, after eliminating the independent weighing platform, the overall layout of the equipment is more compact. There is no need to reserve space for the transfer path, which greatly simplifies the equipment placement planning in the workshop and reduces the indirect cost of site occupation.

[0018] (2) The electric cylinder is the power source. The extension and retraction of its push rod directly drives the moving block to move up and down along a fixed trajectory. The two ends of the moving block are connected to the pull rod by a hinge. The other end of the pull rod is connected to the opening and closing plate. When the moving block moves, the pull rod will generate a pulling force or a pushing force, which will drive the opening and closing plate to rotate around the hinge seat, thereby adjusting the gap between the opening and closing plate and the outlet of the hopper. The change in gap directly controls the falling speed of the fish and shrimp.

[0019] (3) A draining mesh is installed at the bottom of the guide bucket to ensure that the free water on the surface of the fish and shrimp can be naturally separated along the gap of the mesh during the sliding process. The collection bucket is located below the guide bucket to collect the water separated by the draining mesh, so that the water separation can be completed before the fish and shrimp enter the weighing process, and the weight collected by the weighing sensor can completely correspond to the fish and shrimp themselves. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a first-view structural schematic diagram of the conveyor frame of this utility model;

[0022] Figure 3 This is a structural schematic diagram of the conveyor frame of this utility model from a second perspective;

[0023] Figure 4 This is a schematic diagram of the structure of the feeding hopper of this utility model;

[0024] Figure 5 This is a bottom view of the guide bucket of this utility model.

[0025] In the diagram: 1. Frame; 2. Feeding hopper; 3. Discharging bin; 4. Base frame; 5. Conveyor frame; 6. Sensor bracket; 7. Weighing sensor; 8. Collection bucket; 9. Conveyor belt; 10. Servo motor; 11. First drive component; 12. Second drive component; 13. Transmission component; 14. Photoelectric sensor; 15. Discharging hopper; 16. Opening and closing plate; 17. Electric cylinder; 18. Moving block; 19. Tie rod; 20. Guide hopper; 21. Drainage mesh plate; 22. Control box. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved with", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0028] This utility model provides, for example Figure 1-5 The fish and shrimp weighing mechanism shown includes:

[0029] The upright frame 1 serves as the supporting framework for the overall structure. Its core function is to provide a stable installation and bearing foundation for the feeding hopper 2 and the unloading bin 3, ensuring the structural stability of the feeding and unloading processes. The feeding hopper 2, connected to the top of the upright frame 1, has an open-type temporary storage function, enabling the batch pouring of fish and shrimp to meet the material storage needs in large-scale weighing scenarios. The bottom of the feeding hopper 2 is connected to the unloading bin 3, allowing the fish and shrimp to flow naturally into the unloading bin 3 by gravity, completing the transition from feeding to unloading. The unloading bin 3 serves as a transfer and guiding function for the fish and shrimp, preventing them from scattering or accumulating during the transportation process, thus ensuring accurate unloading to the weighing components.

[0030] The weighing assembly, located on one side of the upright frame 1, has the core function of simultaneously conveying and weighing fish and shrimp to meet the needs of continuous and large-scale fish and shrimp weighing. The weighing assembly includes a base frame 4 and a conveyor frame 5. The base frame 4 provides bottom support for the weighing assembly, ensuring the stability of the overall structure during weighing and preventing vibration from affecting weighing accuracy. The conveyor frame 5, located on top of the base frame 4, serves a dual function as both a fish and shrimp conveyor and a weighing carrier. On one hand, it can carry fish and shrimp and achieve stable conveying; on the other hand, as the core component for weight transfer, it... The weight of itself and the fish and shrimp it carries is evenly transferred to the weighing sensors 7 installed on the sensor brackets 6 through several sensor brackets 6 connected to the base frame 4. With the help of the weighing sensors 7 to collect weight data in real time, the weight can be measured simultaneously as the fish and shrimp move with the conveyor frame 5, without having to transfer the fish and shrimp to an independent weighing platform. This fundamentally eliminates the time loss and material spillage risk in the transfer process, while simplifying the overall layout of the equipment and reducing site occupation costs. The weighing sensors 7 are selected from the Mettler Toledo SLF6 series, such as the SLF630x.

[0031] The collection bucket 8 is located at the bottom of the feeding bin 3. Its core function is to collect the water that is drained from the fish and shrimp during the process of falling from the feeding bin 3 to the conveyor frame 5, so as to avoid water from falling on the equipment or the ground and causing environmental pollution. At the same time, it prevents water from mixing into the weighing process and causing the weighing data to deviate, ensuring that the weight data collected by the weighing sensor 7 corresponds only to the fish and shrimp themselves, thus improving the weighing accuracy.

[0032] The conveyor frame 5 has a drive roller and a driven roller rotatably connected at both ends via bearings. The core function of the drive roller and the driven roller is to work together to support the conveyor belt 9 and drive its cyclic operation. The bearing connection design can reduce the frictional resistance when the roller rotates, ensuring smooth operation and reducing mechanical wear of the equipment. The conveyor belt 9, which is wound around the drive roller and the driven roller, has the function of stably carrying fish and shrimp. Its surface can be designed with an anti-slip structure according to requirements to prevent the fish and shrimp from sliding and deviating due to vibration and tilting during the conveying process, ensuring that the fish and shrimp move stably with the conveyor belt 9. The servo motor 10 provided on the conveyor frame 5 serves as the power source for the operation of the conveyor belt 9. It has the function of precise and controllable speed. The output speed can be adjusted according to the weighing requirements, thereby controlling the conveying speed of the conveyor belt 9. The first drive component 11 connected to the output shaft of the servo motor 10 has the core function of transmitting the power of the servo motor 10 to the subsequent transmission components, providing power support for the rotation of the drive roller, and ensuring the stability and efficiency of power transmission. Protective covers can be set on the servo motor 10, the first drive component 11, and the second drive component 12 as needed to prevent impurities and moisture from affecting the operation.

[0033] One end of the drive roller is connected to a second drive component 12. The core function of the second drive component 12 is to directly link with the drive roller, converting the externally transmitted power into the rotational power of the drive roller, thereby achieving synchronous operation of the drive roller and the conveyor belt 9. The first drive component 11 and the second drive component 12 are connected by a transmission component 13. The transmission component 13 has the function of stable power transmission, which can ensure that the power output by the first drive component 11 is efficiently and losslessly transmitted to the second drive component 12, avoiding slippage and disengagement during power transmission. This ensures that the speed of the drive roller is consistent with the output speed of the servo motor 10, so that the conveyor belt 9 maintains a stable and uniform conveying state, providing stable conveying conditions for accurate weighing. The first drive component 11 and the second drive component 12 can be selected as synchronous pulleys or sprockets. Correspondingly, the transmission component 13 is adapted to be a synchronous belt or a chain. When a synchronous pulley and a synchronous belt are combined, non-slip transmission is achieved through tooth meshing. When a sprocket and a chain are combined, rigid transmission is achieved through chain link and wheel tooth meshing. The appropriate combination can be selected according to actual needs.

[0034] Several photoelectric sensors 14 are mounted on the conveyor frame 5 via brackets. The core function of the photoelectric sensors 14 is to monitor the distribution of fish and shrimp on the conveyor belt 9 in real time, including the accumulation height of fish and shrimp, whether there is a shortage of material or local congestion, etc. By emitting and receiving light signals, when the accumulation height of fish and shrimp exceeds the preset threshold or a blank area appears in the conveyor, the photoelectric sensors 14 can immediately feed back the detection signal to the control unit, providing data support for subsequent adjustment of the feeding amount and conveying speed, avoiding weighing data deviation or material spillage due to fish and shrimp accumulation, and also preventing the conveyor belt 9 from running idle, thus wasting energy and improving the intelligence and stability of equipment operation.

[0035] The feeding bin 3 is connected to a feeding hopper 15, which has the function of concentrating and guiding fish and shrimp. Its top is connected to the feeding hopper 2, which can receive the fish and shrimp conveyed by the feeding hopper 2. Through the conical structure design that is wider at the top and narrower at the bottom, the fish and shrimp are guided to concentrate at the opening of the hopper, avoiding the accumulation and blockage of fish and shrimp at the corners of the hopper wall, and ensuring that the feeding channel is unobstructed. The bottom sides of the feeding hopper 15 are hinged to the opening and closing plates 16 through hinge seats. The opening and closing plates 16 have the function of adjusting the gap of the feeding port. By rotating around the hinge seat, the gap between the opening and the outlet of the feeding hopper 15 can be changed.

[0036] Electric cylinders 17 are installed at both ends of the bottom of the hopper 15. The electric cylinders 17 serve as the power source for adjusting the opening and closing plate 16. They can realize the extension and retraction of the push rod according to the control command, providing a stable driving force for the rotation of the opening and closing plate 16. The push rod of the electric cylinder 17 is connected to a moving block 18. The moving block 18 has the function of power transmission and conversion, which can convert the linear motion of the push rod of the electric cylinder 17 into the power to drive the pull rod 19. The two ends of the moving block 18 are hinged to the pull rod 19 through the hinge seat. The core function of the pull rod 19 is to connect the moving block 18 and the opening and closing plate 16, transmit the linear motion of the moving block 18 to the opening and closing plate 16, and convert it into the rotation of the opening and closing plate 16 around the hinge seat. The other end of the pull rod 19 is hinged to one end of the bottom of the opening and closing plate 16 through the hinge seat. This hinge structure can ensure that the pull rod 19 drives the opening and closing plate 16 to rotate flexibly without jamming, while avoiding hard contact that could damage fish and shrimp.

[0037] The bottom of the feeding hopper 3 is connected to a guide hopper 20, which has the function of precisely guiding and conveying fish and shrimp. One end of the guide hopper extends to the conveyor belt 9, guiding the fish and shrimp falling from the opening plate 16 to slide along the inclined trajectory of the inner wall of the guide hopper 20, and finally accurately landing in the middle area of ​​the conveyor belt 9, avoiding the fish and shrimp from deviating from the edge of the conveyor belt 9 and spilling, while ensuring that the fish and shrimp are evenly distributed on the conveyor belt 9. The inner wall of the guide hopper 20 can be designed with a smooth surface to reduce the frictional resistance between the fish and shrimp and the hopper wall, prevent the fish and shrimp from being damaged by friction, and ensure smooth conveying. The bottom of the guide hopper 20 is provided with a draining mesh plate 21, which has the function of separating water and material. During the process of the fish and shrimp sliding along the guide hopper 20, the free water on the surface of the fish and shrimp is separated through the gaps of the draining mesh plate 21, preventing water from entering the weighing process with the fish and shrimp and affecting the weighing accuracy. The separated water can flow into the collection bucket 8 along the inclined surface of the bottom of the guide hopper 20 to achieve centralized water recovery and further improve the accuracy of the weighing data.

[0038] The support frame 1 is equipped with a control box 22, which serves as the control core of the overall mechanism. The control box 22 has multi-module integrated control functions, integrating a control unit, a data processing unit, a display unit, and a storage unit. The control unit receives detection signals from the photoelectric sensor 14 and the weighing sensor 7, and sends control commands to the servo motor 10 and the electric cylinder 17 according to a preset program, enabling coordinated operation of all components. The data processing unit receives the total weight data collected by the weighing sensor 7 in real time, automatically subtracts the empty weight of the conveyor frame 5 and the conveyor belt 9, and calculates the actual weight of the fish and shrimp. The display unit displays the actual weight of the fish and shrimp, the equipment operating status, and other information in real time for easy viewing by operators. The storage unit automatically stores the weighing data for subsequent data retrieval, statistics, and traceability, achieving intelligent and automated control of fish and shrimp weighing, significantly improving weighing efficiency and accuracy.

[0039] The fish and shrimp weighing mechanism has a collection bucket 8 positioned directly below the feeding bin 3. The operator starts the equipment via the control box 22. The fish and shrimp to be weighed (fresh or in preliminary processing) are poured into the feeding hopper 2 at the top of the support frame 1. The feeding hopper 2 has an open design for easy batch loading. The bottom of the feeding hopper 2 is connected to the feeding bin 3, allowing the fish and shrimp to flow naturally into the feeding hopper 15 within the feeding bin 3 under gravity. The feeding hopper 15 is designed with a tapered structure, wider at the top and narrower at the bottom. This structure guides the fish and shrimp towards the opening, preventing accumulation and blockage at the corners and ensuring unobstructed feeding. The control box 22 activates the electric cylinder 17 according to a preset operating mode (e.g., continuous or batch feeding). When an increase in feeding volume is needed, the electric cylinder 17 extends its push rod, pushing the moving block 18 upwards. The moving block 18, via the pull rod 19, pulls the opening and closing plate 16 to rotate upwards around the hinge, increasing the opening... The gap between the hinge plate 16 and the outlet of the hopper 15 allows more fish and shrimp to fall at the same time. When it is necessary to reduce the amount of material being fed, the electric cylinder 17 pushes the rod back, causing the moving block 18 to move downward. The pull rod 19 pushes the hinge plate 16 to rotate downward around the hinge seat, narrowing the gap and slowing down the falling speed of the fish and shrimp. The contact surface of the hinge plate 16 facing the fish and shrimp is covered with a layer of soft elastic material (such as food-grade silicone or rubber). This material has a certain deformation capacity. When it comes into contact with the fish and shrimp during the closing process, the elastic material will be slightly compressed, which avoids squeezing damage caused by hard contact and can also push the fish and shrimp to the guide hopper 20 below through the guiding force generated by the deformation, instead of getting stuck between the hinge plate 16 and the hopper 15. During the entire adjustment process, the control box 22 will receive the position feedback signal of the hinge plate 16 in real time to ensure that the gap size meets the preset requirements and avoid abnormal feeding due to over-adjustment.

[0040] Fish and shrimp falling from the opening and closing plate 16 will directly enter the guide hopper 20. The guide hopper 20 is tilted, with one end extending directly above the conveyor belt 9. The inner wall of the hopper is smoothed to reduce friction between the fish and shrimp and the hopper wall. Under the action of the guide hopper 20, the fish and shrimp can be guided to slide along the tilted trajectory of the inner wall of the guide hopper 20, and finally fall accurately into the middle area of ​​the conveyor belt 9, avoiding the fish and shrimp deviating from the edge of the conveyor belt 9 and spilling. At the same time, it ensures that the fish and shrimp are relatively evenly distributed on the conveyor belt 9, which is conducive to subsequent weighing. The gravity and conveying provide stable conditions, and when the fish and shrimp slide in the guide bucket 20, the free water carried on their body surface will be separated from the fish and shrimp due to gravity, and flow along the inner wall of the guide bucket 20 to the draining mesh plate 21 at the bottom. After the water passes through the gaps of the draining mesh plate 21, it will continue to slide down along the inclined surface at the bottom of the guide bucket 20 and finally drip into the collection bucket 8 below. The connection between the draining mesh plate 21 and the guide bucket 20 adopts a screw-removable design, which is convenient for subsequent cleaning or replacement and avoids the mesh clogging from affecting the drainage effect.

[0041] After the control box 22 starts the servo motor 10, the output shaft of the servo motor 10 drives the first drive component 11 to rotate. The first drive component 11 is connected to the transmission component 13 through meshing, and transmits the power to the second drive component 12. The second drive component 12 is coaxially fixed with the drive roller at one end of the conveyor frame 5. Therefore, when the second drive component 12 rotates, it will drive the drive roller to rotate synchronously. The surface of the drive roller is treated with anti-slip and is in close contact with the inner side of the conveyor belt 9. The friction force drives the conveyor belt 9 to rotate. The driven roller at the other end of the conveyor belt 9 rotates synchronously with the conveyor belt 9, ensuring that the conveyor belt 9 runs smoothly as a whole and there will be no deviation or slippage. The fish and shrimp that fall on the conveyor belt 9 can move at a uniform speed with the conveyor belt 9.

[0042] The conveyor frame 5 is mounted on the base frame 4 via sensor brackets 6. All sensor brackets 6 are at the same horizontal height to ensure that the conveyor frame 5 is subjected to uniform force. The weighing sensor 7 is installed between the sensor bracket 6 and the base frame 4. It can collect the total weight data of the conveyor frame 5, the conveyor belt 9 and the fish and shrimp in real time, and convert the data into an electrical signal and transmit it to the control box 22. The processor built into the control box 22 will call the preset "no-load weight parameter" (i.e. the inherent weight of the conveyor frame 5 and the conveyor belt 9), subtract the no-load weight from the total weight collected in real time, and calculate the actual weight of the fish and shrimp. After the calculation is completed, the weight data will be displayed on the display screen of the control box 22 in real time for the operator to view in real time. At the same time, the data will be automatically stored in the storage module of the control box 22 for easy retrieval later.

[0043] The photoelectric sensor 14 is installed above the conveyor frame 5, and its detection direction is perpendicular to the surface of the conveyor belt 9. It can continuously monitor the height changes of fish and shrimp on the conveyor belt 9. When fish and shrimp in a certain area accumulate to a certain height, they will block the detection signal of the photoelectric sensor 14. The sensor will immediately send an "accumulation signal" to the control box 22. After receiving the signal, the control box 22 will make a judgment based on the operating speed data of the conveyor belt 9: if the speed of the conveyor belt 9 is within the normal range, it means that the accumulation is caused by excessive material feeding. At this time, the control box 22 will send a command to the electric cylinder 17 to reduce the extension of the push rod and reduce the gap of the opening and closing plate 16 to reduce the material feeding; if the speed of the conveyor belt 9 is too low, it means that the accumulation is caused by insufficient conveying speed. The control box 22 will send a command to the servo motor 10 to increase the speed to speed up the conveying. Through targeted adjustments, the fish and shrimp on the conveyor belt 9 are always kept in a reasonable distribution state.

[0044] The weighed fish and shrimp move along the conveyor belt 9 to the end away from the upright 1. The end of the conveyor belt 9 away from the upright 1 is equipped with an inclined guide plate. The angle of the guide plate is adapted to the position of the recycling bin. It can guide the weighed fish and shrimp to slide into the recycling bin or the feeding channel of the next equipment along the guide plate. There is no need for manual handling of the fish and shrimp from the conveyor belt 9 to the next equipment, realizing a seamless connection between "weighing and subsequent processing" and reducing the time loss and damage to the fish and shrimp in the intermediate links.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fish and shrimp weighing mechanism, characterized in that, include: A vertical frame (1) is provided, with a feeding hopper (2) connected to the top and a feeding bin (3) connected to the bottom of the feeding hopper (2); Weighing component, the weighing component is located on one side of the upright frame (1) and is used to transport and weigh the fish and shrimp falling out of the feeding bin (3). The weighing component includes a base frame (4) and a conveyor frame (5). The conveyor frame (5) is located on the top of the base frame (4) and several sensor brackets (6) are connected between the conveyor frame (5) and the base frame (4). The fish and shrimp are transported through the conveyor frame (5) and the weighing function is achieved by means of the weighing sensor (7) installed on the sensor bracket (6). Collection bucket (8) is located at the bottom of the feeding bin (3) and is used to collect the water that is drained out during the process of fish and shrimp falling to the conveyor frame (5).

2. The fish and shrimp weighing mechanism according to claim 1, characterized in that: The conveyor frame (5) has a drive roller and a driven roller rotatably connected at both ends by bearings. A conveyor belt (9) is wound around the drive roller and the driven roller. A servo motor (10) is provided on the conveyor frame (5) and the output shaft of the servo motor (10) is connected to a first drive component (11).

3. The fish and shrimp weighing mechanism according to claim 2, characterized in that: One end of the drive roller is connected to a second drive member (12), and the first drive member (11) and the second drive member (12) are connected by a transmission member (13).

4. The fish and shrimp weighing mechanism according to claim 1, characterized in that: Several photoelectric sensors (14) are mounted on the conveyor frame (5) via brackets.

5. A fish and shrimp weighing mechanism according to claim 1, characterized in that: The feeding bin (3) is connected to a feeding hopper (15), and the top of the feeding hopper (15) is connected to the feeding hopper (2). The bottom sides of the feeding hopper (15) are hinged with opening and closing plates (16) through hinge seats.

6. A fish and shrimp weighing mechanism according to claim 5, characterized in that: The bottom of the hopper (15) is equipped with electric cylinders (17) at both ends, and the push rod of the electric cylinder (17) is connected to a moving block (18). The two ends of the moving block (18) are hinged to a pull rod (19) through a hinge seat, and the other end of the pull rod (19) is hinged to the bottom end of the opening and closing plate (16) through a hinge seat.

7. A fish and shrimp weighing mechanism according to claim 2, characterized in that: The bottom of the feeding hopper (3) is connected to a guide bucket (20) and one end of the guide bucket (20) extends to the conveyor belt (9). The bottom of the guide bucket (20) is provided with a drain mesh plate (21).

8. A fish and shrimp weighing mechanism according to claim 1, characterized in that: A control box (22) is installed on the support frame (1).

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