A fish product processing line and a processing method

Abstract

The application discloses a fish product processing production line and a processing method, relates to the technical field of automatic fish product processing equipment, and is invented to improve the automatic production efficiency of fish products. The fish product processing production line comprises a feeding mechanism, a hopper weighing scale, a metering belt scale, a conveying belt, a processing station and a computer processing system. The feeding and feeding sequence of the computer processing system is set, the double-hopper weighing system quantitatively supplies raw materials in multiple small cycles, and the residence time of the raw materials on the production line is shortened. The computer processing system records and stores dynamic weighing and processing station positioning information, and automatically records, evaluates and counts the working results of the processing station operators. The application further discloses a fish product processing method. In combination with the fish product processing production line, the production efficiency is greatly improved, the waiting time of the processing station is reduced, and the risk of processing pollution is reduced.

Description

Technical Field

[0001] This invention relates to the field of automated processing equipment for fish products, and in particular to a production line and processing method for slicing and trimming fish products. Background Technology

[0002] Industrialized production lines for fish products are the primary means of large-scale, rapid processing. Automated lines transport raw materials and separate processing waste, combined with manual processing, to achieve industrialized production of fish products. The most crucial steps in fish product processing are filleting and trimming: filleting, also known as slicing, separates the flesh from the body; trimming, also known as trimming, involves removing the remaining parts of the fish according to process requirements, removing inedible parts such as the dorsal fin, to improve its appearance. Due to the diversity of fish products and the irregularity of raw materials, manual filleting and trimming remain the main methods.

[0003] In the current processing, fish raw materials are weighed after being placed in baskets and then conveyed to the workstations of the slicing production line operators. Operators slice the fish on these workstations, and the remaining parts of the fish proceed to the next trimming stage for further processing. During processing, operators need to pull the baskets containing the raw materials to their workstations, remove the raw materials, and transfer the processed materials to new baskets. This current production method results in raw materials piling up in the baskets, which not only degrades product quality but also prolongs processing time. Since fish products have high requirements for processing time, the current process causes excessively long dwell times for the raw materials on the production line.

[0004] Meanwhile, due to human factors such as the operator's skill level, manual operation on the production line can lead to uneven workload distribution, uneven busyness and idleness, wasted time, and the efficiency of production line utilization needs to be improved.

[0005] Meanwhile, conflicts may occur in processes such as workers on the production line requesting the delivery of raw materials, requiring priority assessment and arrangement. Summary of the Invention

[0006] The purpose of this invention is to provide an automated processing production line for fish products, which shortens the time that products stay on the production line, rationally configures the work deployment, calculates and statistically analyzes the workload, and ensures that the product processing is automated and efficient, thereby achieving efficient and safe production of fish products and reducing the risk of pollution.

[0007] This invention provides a fish product processing production line, including a feeding mechanism, a hopper weighing scale, a metering belt scale, a conveyor belt, processing stations, and a computer processing system. The feeding mechanism includes a raw material storage hopper and a gooseneck elevator for conveying raw materials to the hopper weighing scale. The hopper weighing scale and the metering belt scale are used to weigh the initial weight and the processed weight of the raw materials, respectively, and transmit the weight data to the computer processing system. The conveyor belt transports the raw materials to the processing stations for processing and transports the processed products and waste products to subsequent processing steps. The hopper weighing scale delivers a fixed quantity of raw materials to the conveyor belt according to a weight standard set by the computer processing system. The conveyor belt supplies materials to designated processing stations according to a feeding sequence set by the computer processing system. The feeding sequence is determined by the computer processing system based on historical processing data collected by the hopper weighing scale and the metering belt scale for each processing station.

[0008] Furthermore, the processing station includes a slitting line processing station and a trimming line processing station. The slitting line processing station uses a semi-finished product metering belt scale and a second gooseneck elevator to transport the slitting semi-finished products to the trimming line processing station.

[0009] Optionally, the processing station is formed by splicing processing station units with the same structure at equal intervals along both sides of the conveyor belt.

[0010] Furthermore, the processing station unit includes a raw material storage tank, a worktable, and a finished product storage tank. The raw material storage tank is used to receive raw materials conveyed by the conveyor belt, the worktable is used to process the raw materials, and the finished product storage tank is used to temporarily store the processed products. The finished product storage tank is connected to a pusher cylinder, which pushes the products in the finished product storage tank into the subsequent process according to the delivery time preset by the computer processing system.

[0011] Optionally, the processing station unit further includes a control box, which includes a material supply request button and a material delivery request button, used to interrupt the material supply and delivery sequence preset by the computer processing system, and to obtain raw materials or deliver materials first.

[0012] Optionally, the processing station unit also includes a foldable pedal, the vertical distance between the pedal and the workbench being adjustable.

[0013] Optionally, the processing station unit further includes a cleaning system for cleaning the workbench and work area.

[0014] On the other hand, the conveyor belt includes a raw material conveyor belt, a processed product conveyor belt, and a waste conveyor belt arranged in layers. The raw material conveyor belt is used to receive and transport raw materials to a designated processing station. The processed product conveyor belt is used to transport the processed products to subsequent processes. The waste conveyor belt is used to transport the waste generated after processing to a recycling location.

[0015] Furthermore, the raw material conveyor belt is provided with swing arms or push arms on both sides to guide the raw materials on the conveyor belt to the raw material storage tank of the designated processing station.

[0016] On the other hand, the hopper weighing scale consists of a left weighing hopper and a right weighing hopper arranged in parallel, with a flap between the left and right weighing hoppers for cyclical and alternating quantitative feeding.

[0017] On the other hand, the measuring belt scale includes a semi-finished product measuring belt scale set at the end of the slitting line and a finished product measuring belt scale set at the end of the finishing line. Both the semi-finished product measuring belt scale and the finished product measuring belt scale are equipped with weighing sensors for dynamic weighing and transmitting weight data to a computer processing system.

[0018] On the other hand, photoelectric recording instruments are installed on the slitting line and the trimming line to record the station information of raw materials and products entering and leaving the workstation, and transmit the position information to the computer processing system.

[0019] This invention provides a method for processing fish products, comprising the following steps:

[0020] The raw materials in the temporary storage hopper are fed into the hopper weighing scale via a gooseneck elevator.

[0021] The hopper weighing scale receives raw materials, weighs and discharges them quantitatively, and transmits the initial weight data to the computer processing system.

[0022] The movement of raw materials on the conveyor belt triggers a photoelectric recording instrument, which then transmits the raw material's position information to a computer processing system.

[0023] The computer processing system sends instructions to the swing arm cylinder at the designated workstation according to the pre-set feeding sequence, guides the raw materials into the designated workstation, and fixes the workstation position information.

[0024] The finished products at the processing station are stored in the finished product storage tank. When the pre-set delivery time of the processing station is met and the delivery safety range of each station is met, the products are pushed to the conveyor belt and transported to the metering belt scale.

[0025] The weighing belt scale dynamically weighs the products and transmits the acquired product weight data and processing station location information to the computer processing system for storage.

[0026] The conveyor belt of the metering belt scale transports products to subsequent processes.

[0027] Furthermore, the material supply sequence preset by the computer processing system is determined by weighted calculation of the processing statistics data of each workstation obtained by the computer processing system within a certain period, which sets the priority order for material supply and delivery.

[0028] Furthermore, the processing station has the right to request compensation, which can interrupt the pre-set material supply or delivery sequence of the computer processing system by sending a material supply or delivery request to the computer processing system, so as to obtain raw materials or deliver materials first.

[0029] Optionally, a quality inspection station is also provided to conduct quality inspection sampling of products before they are transported to the weighing belt scale, and to transmit the sampling results to the computer processing system.

[0030] The technical solution provided by this invention pre-sets the material supply and delivery sequence for each processing station through a computer processing system. By supplying materials quantitatively in small, frequent batches, it meets the processing needs of each station and improves processing efficiency. By using different transport paths for raw materials, processed products, and waste, it automates the fish product processing process and enables real-time recording and storage of operator workload. The material supply and delivery sequence is set based on the original processing data and can be adjusted in real-time according to on-site conditions. Compared with existing technologies, online time is significantly reduced, and the product defect rate is lowered, which is of great significance for improving enterprise production efficiency and economic benefits. Attached Figure Description

[0031] Figure 1 This is a front view of the overall structure of the fish product processing production line of the present invention;

[0032] Figure 2 This is a schematic diagram of the lifting mechanism of the fish product processing production line of the present invention;

[0033] Figure 3 This is a schematic diagram of the workstations in the fish product processing production line of the present invention;

[0034] Figure 4 This is a schematic diagram of the material storage mechanism of the fish product processing production line of the present invention;

[0035] Figure 5 This is a front view of the metering belt scale of the fish product processing production line of the present invention;

[0036] Figure 6 This is a perspective view of the metering belt scale of the fish product processing production line of the present invention.

[0037] In the diagram: 1-Raw material temporary storage hopper; 2-First gooseneck elevator; 3-Hopper weighing scale; 4-Slicing line; 5-Semi-finished product weighing belt scale; 6-Second gooseneck elevator; 7-Trimping line; 8-Finished product weighing belt scale; 9-Left weighing hopper; 10-Flip plate; 11-Right weighing hopper; 12-Flip plate cylinder; 13-Weighing hopper cylinder; 14-Drive motor; 15-Feeding trough; 16-Pedal; 17-Main frame; 18-Raw material storage trough; 19-Fishbone 20-Feeding port; 21-Working board; 22-Swing arm; 23-Finished product storage tank; 24-Control box; 25-Storage tank support plate; 26-Storage tank front end baffle; 27-Pushing cylinder; 28-Working board support frame; 29-Working board support plate; 30-Bracket; 31-Weighing sensor; 32-Semi-finished product conveyor belt; 33-Scrap product conveyor belt; 34-Scrap product elevator; 35-Trimped product conveyor belt; 36-Trimped scrap product conveyor belt. Detailed Implementation

[0038] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the structural diagrams and specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0039] like Figure 1As shown, the present invention provides an embodiment of a fish product processing production line, which includes a raw material storage hopper 1, goose neck elevators 2 and 6, weighing scales 3, 5 and 8, a slicing line 4, a trimming line 7, and a computer processing system. The raw material storage hopper 1 is used to temporarily store fish products ("raw materials") to be processed. Its lower opening corresponds to the lower feeding trough of the first gooseneck elevator 2. The fish products to be processed enter from the upper opening of the raw material storage hopper 1 and fall into the feeding trough through its lower opening. The first gooseneck elevator 2 moves under the drive of the drive motor connected to it, lifting the feeding trough located at the lower part to the upper part of the first gooseneck elevator 2. The raw materials are fed into the hopper weighing scale 3 for weighing. The weight sensor of the hopper weighing scale 3 transmits the weight data of the raw materials to the computer processing system. According to the control signal sent by the computer processing system, the fish products to be processed after weighing are transported to the slicing line 4 and sent to the target station for slicing. The semi-finished fish products processed at the slicing station are conveyed by the semi-finished product conveyor belt 32 located in the middle layer of the slicing line 4. The semi-finished product is conveyed to the semi-finished product weighing belt scale 5 for weighing, and the weight data is transmitted to the computer processing system. The waste generated during the slitting station is sent to the bottom slitting waste conveyor belt 33 and transported to the next process for processing together with the waste generated in the next process. After the semi-finished product is weighed, it is lifted by the second gooseneck elevator 6 to the conveyor belt of the trimming line 7. According to the control signal sent by the computer processing system, the semi-finished product is transported to the target station on the trimming line 7 for trimming. The trimmed finished product is sent to the trimming product conveyor belt 35 located in the middle layer and transported to the finished product weighing belt scale 8 for weighing, and the weight data is transmitted to the computer processing system. The waste generated during the trimming station is sent to the bottom trimming waste conveyor belt 36 and transported to the terminal waste recycling bin for unified recycling.

[0040] This invention relates to a fish product processing line that employs a fully dynamic, automated weighing and metering system. This avoids the wasteful processes of transporting raw materials and using crates or other containers for weighing in existing technologies. It not only reduces the number of crates used for loading and unloading, eliminating the need for crates and separate conveyor belts for crate recycling, but also avoids the damage and contamination risks caused by raw materials accumulating in crates, and shortens the time raw materials spend on the production line. Especially in hot weather, the longer raw materials remain on the production line, the more prone they are to spoilage and contamination. Simultaneously, by integrating all nodes of the production line into a single platform using an industrial control computer and PLC, a unified set of business logic is used to control and allocate material distribution and receiving. The workload of processing workers is calculated and statistically analyzed, and raw materials are allocated in small, frequent batches based on employee processing efficiency, improving processing efficiency, avoiding human error, and saving on statistical personnel. A detailed description will follow with reference to other accompanying drawings.

[0041] like Figure 2As shown, this invention provides an embodiment of a lifting mechanism. The raw material storage hopper 1 stores fish raw materials after the descaling and gutting process, referred to in this embodiment as fish products awaiting processing. This refers only to the slicing and trimming processes in this embodiment and does not mean the fish is completely unprocessed. Of course, the raw material storage hopper 1 can also directly store unprocessed fish raw materials, with the descaling and gutting work completed on the slicing line. However, such a processing method would undoubtedly increase the dwell time of the fish products on the production line. Since division of labor and cooperation are more efficient, and the simpler the processing steps at each station, the higher the efficiency, this embodiment prefers fish raw materials after the descaling and gutting process from the perspective of process simplification and efficiency improvement. In this embodiment, the upper opening ("loading port") of the raw material storage hopper 1 is larger, facilitating the filling of fish products; the lower opening ("unloading port") of the raw material storage hopper 2 is smaller, with the planar area gradually narrowing from the upper opening to the lower opening, thereby controlling the feeding speed. The lower opening of the raw material storage hopper 1 corresponds to the feeding trough at the bottom of the first gooseneck elevator 2. The feeding trough is a separate grid for placing raw materials. Due to size limitations, the raw materials stored in each grid are quantitative. This ensures that the total weight of the batch of raw materials in each grid is close and the variance of the average weight of the batch is small, so that the weight of the fish products to be processed obtained at each station is more average.

[0042] In this embodiment, the lifting mechanism is a gooseneck elevator, used to lift a fixed quantity of fish products to be processed from the raw material storage hopper 1 located at the bottom to the weighing mechanism located at a higher position. The upper and lower stages of the first gooseneck elevator 2 are both horizontally arranged, and the middle stage is a straight section with a certain angle to the horizontal plane. The connection between the middle stage and the upper and lower stages is an arc transition connection. The first gooseneck elevator 2 serves as the conveyor belt for the raw materials and can be a chain plate conveyor belt. The chain plates are interconnected to form a closed conveyor structure. Sprockets are set at both ends of the conveyor belt, and the sprocket teeth are inserted into the gaps between the chain plates in sequence to drive the chain plate conveyor belt to rotate. Of course, the conveyor belt can also be a chain conveyor, with a feeding trough installed on the chain. The drive motor 15 drives the sprocket to rotate through the transmission shaft, thereby driving the conveyor belt to move. The drive motor 15 can be a servo motor or a geared motor.

[0043] After the feeding trough is raised from the bottom to the top by the first gooseneck elevator 2, the raw material is poured into the hopper weighing scale (3). In this embodiment, a double hopper weighing scale with parallel left and right sides is used, and a flap 10 is provided between the two hopper weighing scales. The raw materials are first poured into the left weighing hopper 9, which is equipped with a weight sensor that transmits the weight information to the computer processing system in real time. Once the left weighing hopper 9 reaches the weight standard preset by the computer processing system, the computer processing system sends a control signal to the flipping cylinder 12. The flipping cylinder 12 then activates and pushes the flipping plate 10 to flip, and the feeding chute begins to feed material into the right weighing hopper 11. At the same time, the weighing hopper cylinder 13 receives the control signal from the computer processing system and opens the lower baffle of the left weighing hopper 9, steadily discharging material onto the slitting line conveyor belt located below it. The right weighing hopper 11 is also equipped with a weight sensor that transmits the weight information to the computer processing system in real time. Once the right weighing hopper 11 reaches the weight standard preset by the computer processing system, the computer processing system sends a control signal to the flipping cylinder 12, which then pushes the flipping plate 10 to flip again, starting to feed material into the left weighing hopper 9. At this time, the weighing hopper cylinder 13 receives a control signal from the computer processing system, opening the lower baffle of the right weighing hopper 11, and the right weighing hopper 11 steadily discharges material onto the sizing line conveyor belt located below it. Through the above cyclical motion, utilizing the double weighing hopper cyclical feeding and discharging method, the technical solution of this invention can achieve small-batch, multiple weighing, reducing secondary compression of products and lowering the defect rate. Simultaneously, raw materials can be rationally allocated according to employee processing efficiency, ensuring that all employees have raw materials to process, maximizing processing efficiency.

[0044] like Figure 3As shown, this invention provides a workstation embodiment for a fish product processing production line. Each workstation unit can be spliced ​​together to form a larger processing line. This embodiment provides a structural unit with four workstation units spliced ​​together as an example, which can be expanded arbitrarily according to the production site conditions. The workstation is set on the main frame 17. At the lower part of the main frame 17, there is a foldable footrest 16 for workers to stand on. The footrest 16 can be lowered when working and folded up when not working. On the other hand, the footrest 16 can also rise or fall along the columns of the main frame 17. By stepping on the foot plate set on the column, the footrest 16 can rise or fall along the serrated steps, thereby adjusting the vertical distance between it and the worktable 20 to meet the working height requirements of workers of different heights and make it more comfortable for workers to stand and work. The workstation also includes a worktable 20. The front side of the worktable is provided with a finished product storage trough 22, and the rear side is provided with a fish bone feeding port 19. A raw material storage trough 18 is provided on one side of the worktable 20. A swing arm 21 is provided above the raw material storage trough 18. The swing arm 21 is driven by a swing arm cylinder. A control box 23 is also provided on the left side of the workstation. The control box 23 has two buttons: one is a material request button, used to send the workstation location and material request information to the computer processing system; the other is a material delivery button, used to send a request to the computer processing system to deliver the semi-finished product. In this embodiment, the buttons on the control box 23 are compensation buttons.

[0045] The raw material allocation is determined by a computer processing system based on the statistical average of the workload completed by each workstation within a certain period. Raw materials are prioritized for the workstations with the highest processing efficiency. When raw materials fall onto the uppermost conveyor belt of the sizing line 4 and are conveyed forward, they pass through a front-end photoelectric sensor, triggering a start signal. The photoelectric sensor records the raw material's position information and transmits this information to the computer processing system. Based on the received position information, the computer processing system sends a control signal to the swing arm cylinder at the corresponding workstation, controlling the swing arm 21 to extend from its retracted position and block the conveying direction of the sizing line. The arc of the swing arm 21 guides the raw material into the raw material storage tank 18 along the direction of the swing arm 21. After the raw material enters, the swing arm cylinder controls the swing arm 21 to return to its original position, allowing other raw materials to continue entering other workstations. In addition to using a swing arm to guide the raw materials into the raw material storage tank 18, the raw materials can also be pushed into the raw material storage tank 18 by a pushing method. For example, a push arm can be set in the opposite direction of the corresponding work station. When the raw materials are transported to the position of the push arm, the push arm cylinder receives the control signal sent by the computer processing system and pushes the raw materials into the raw material storage tank of the opposite work station, thereby completing the pushing action of the raw materials.

[0046] After the raw materials enter the raw material storage tank 18, the operators at the workstation take them to the work board 20 for slicing. After slicing, the semi-finished fish is placed in the finished product storage tank 22 in front of the work board 20. The computer processing system transmits control signals according to the pre-set workstation time to transport the semi-finished products to the semi-finished product conveyor belt 32 in the middle layer of the slicing line 4, thereby conveying them to the subsequent processing steps, including weighing and trimming. The discarded waste products, such as fish bones, are placed in the fish bone discharge port 19 behind the workstation and fall from the fish bone discharge port 19 onto the slicing waste conveyor belt 33 at the bottom of the slicing line. Water guns are also provided at the workstation for workers to wash the work board, etc.

[0047] A control box 23 is located on the left side of the workstation. The control box 23 includes a material request button and a material feed button, allowing operators to manually request and feed materials. However, in this embodiment, the manual operation buttons on the control box 23 are only used as compensation buttons: if the worker at the workstation operates quickly and completes the current cutting work before the time preset by the computer processing system arrives, the worker can request materials using the material request button, and the computer processing system will change the priority order, giving the worker priority in material delivery; or if the semi-finished product at the workstation is completed but the material delivery time preset by the computer processing system has not yet arrived, the worker can manually operate the material feed button to send the semi-finished product onto the semi-finished product conveyor belt 32. Through the compensation buttons on the control box 23, with the computer processing system's preset time remaining unchanged, the operator can prioritize requesting raw materials or material delivery, reducing waiting time without materials and improving production efficiency.

[0048] The workstation design in this embodiment uses workstation units with the same structure. This workstation structure can be used for both sizing lines and trimming lines. The workstation units only need to be spliced ​​together according to the site conditions, for example... Figure 3 The structural unit, composed of four workstations, allows for the arrangement of corresponding workstations on both sides of the same slitting line. The arrangement is compact yet can be expanded as needed. The identical structure makes production, assembly, and even replacement simple and convenient, and can be adjusted at any time according to changes in production scale, personnel, and orders.

[0049] In addition, each processing station is equipped with a cleaning system for cleaning the work surface and work area after processing.

[0050] like Figure 4As shown, the present invention provides an embodiment of a feeding mechanism for a workstation. The feeding mechanism includes a finished product storage tank 22, a worktable 20, and a pushing cylinder 26. The finished product storage tank 22 is fixed on a trough support plate 24, and the trough support plate 24 is fixed on the main frame 17 of the workstation; a worktable support frame 27 is fixed on the upper part of the trough support plate 24, and a worktable support plate 28 is provided on the worktable support frame 27, with the worktable 20 disposed on the worktable support plate 28. The fish products that the operators have sliced ​​at their workstations are placed into the finished product storage tank 22. The computer processing system pre-sets the semi-finished product conveying time for each workstation. When the conveying time is reached, the computer processing system sends a control signal to the pusher cylinder 26 at that workstation. The pusher cylinder 26 starts to push the finished product storage tank 22 to move. The front end of the finished product storage tank 22 moves along the irregular lower edge of the front baffle 25 of the trough, raising the front baffle 25 of the trough and sending the semi-finished products onto the semi-finished product conveyor belt 32 in the middle layer of the slicing line 4. The end of the semi-finished product conveyor belt 32 is located above the semi-finished product weighing belt scale 5. After the semi-finished products move to the end of the conveyor belt, they fall onto the semi-finished product weighing belt scale 5 due to gravity, completing the weight measurement of the semi-finished products.

[0051] like Figure 5 and Figure 6 As shown, this invention provides an embodiment of a semi-finished product weighing belt scale 5. The semi-finished product weighing belt scale 5 includes a lower support 29, an upper conveyor belt 30, and a weighing sensor 31 disposed between the conveyor belt and the support. The semi-finished product weighing belt scale 5 is positioned between the slitting line 4 and the trimming line 7, with the end of the semi-finished product conveyor belt 32 above it, and a second gooseneck elevator 6 corresponding to the end of the conveyor belt 30. Semi-finished products fall from the end of the semi-finished product conveyor belt 32 on the slitting line onto the conveyor belt 30 of the semi-finished product weighing belt scale 5. As the conveyor belt 30 moves, its weight is transmitted to the lower weighing sensor 31, which transmits the weight data of the batch of semi-finished products to a computer processing system. In this embodiment, the semi-finished product weighing belt scale employs a dynamic weighing algorithm, utilizing servo control for product aggregation and rapid feeding; it can synchronously transmit data on the operators and product weight of each batch of products to the computer processing system via the subsequent second gooseneck elevator. In this embodiment, the structure of the finished product weighing belt scale 8 set at the end of the trimming line is the same as that of the semi-finished product weighing belt scale 5. It also includes a bracket, a conveyor belt and a weighing sensor, and adopts a dynamic weighing algorithm. Its mechanism will not be described in detail.

[0052] like Figure 1As shown, this invention provides an embodiment of connecting a fish product slicing line and a trimming line. The slicing line 4 includes three conveyor belts from top to bottom: the top layer is the slicing line conveyor belt, used to transport the fish products to be processed; the middle layer is the semi-finished product conveyor belt 32, used to transport the semi-finished products that have been sliced ​​at each station on the slicing line to the subsequent processing stage; and the bottom layer is the slicing waste conveyor belt 33, used to transport the waste generated during processing on the slicing line to the terminal for unified recycling. Because the sizing line 4 uses a fixed-station, fixed-point conveying method, no products are missed at its end. The middle layer of the semi-finished product conveyor belt 32 transports the sized semi-finished products to the end of the conveyor belt, where they fall onto the conveyor belt of the semi-finished product weighing belt scale 5 under gravity. After dynamic weighing, they fall from the end of the belt scale conveyor belt onto the second gooseneck elevator 6 below. The second gooseneck elevator 6 lifts the semi-finished products above the trimming line 7, where they fall onto the conveyor belt of the trimming line 7 under gravity. The bottom layer of the sizing line, the sizing waste conveyor belt 33, transports the generated waste products to the end of the conveyor belt, where they fall onto the waste product elevator 34 below. The waste product elevator 34 lifts the sizing waste products above the trimming waste conveyor belt 36, where they fall onto the trimming waste conveyor belt 36 below and are processed together with the waste products generated by the trimming line, thereby improving waste processing efficiency and reducing manpower workload and repetitive labor. Of course, waste recycling bins can also be placed directly below the sizing line waste conveyor belt to directly recycle waste products.

[0053] The basic structure of the trimming line is the same as that of the slitting line; both adopt the following methods: Figure 3 The workstation units shown are assembled together. For specific structure details, please refer to the workstation description of the slitting line; they will not be repeated here. The top layer of the trimming line is a trimming line conveyor belt, used to receive the semi-finished products conveyed by the second gooseneck elevator 6, positioning and conveying them to a fixed workstation where operators perform trimming operations. The middle layer of the trimming line is equipped with a trimmed product conveyor belt 35, used to convey the trimmed finished products to the finished product weighing belt scale 8 for weighing. After dynamic weighing, the finished product weighing belt scale 8 transmits the finished product weight data to the computer processing system. The finished products move to the end of the finished product weighing belt and fall into the finished product basket below, completing finished product recycling. The bottom layer of the trimming line is equipped with a trimming waste conveyor belt 36, used to receive waste products generated in the trimming process. These waste products, along with those generated in the slitting process, are transported to the end of the conveyor belt and fall into the waste recycling basket, achieving waste recycling.

[0054] The aforementioned slitting line and trimming line can also function as independent equipment, each completing its own process. Automation of each individual process can be achieved simply by installing finished or semi-finished product recycling bins and waste recycling bins below the corresponding conveyor belts. Alternatively, the slitting line can be integrated with the trimming line to form a slitting and trimming production line. Whether these processes are established independently or integrated, they all fall within the scope of this invention.

[0055] The computer processing system in this embodiment of the invention refers to an intelligent control center composed of an industrial control computer (ICC) as the core of the information processing system, combined with Modbus-TCP communication to control key PLC node components. The algorithm is implemented by the ICC, while the actions are completed by the PLC. This achieves integrated control by automatically and rationally allocating raw materials and automatically delivering finished products based on employee processing efficiency using the ICC's computing capabilities; and by utilizing the high response speed of the PLC's electrical control components to ensure timely responses at each step. Simultaneously, employee output rate and processing efficiency can be displayed in real time on the ICC screen, facilitating production monitoring.

[0056] This invention also provides an automated processing method for fish products. Combined with the fish product processing production line of this invention, the specific steps are as follows:

[0057] After being scaled and gutted, the batch of raw materials is temporarily stored in the raw material storage hopper.

[0058] The raw materials in the temporary storage hopper are quantitatively lifted to the hopper scale by a gooseneck elevator for weighing;

[0059] After the hopper scale finishes weighing, it receives a control signal from the computer processing system, performs raw material distribution, and transmits the initial weight data of the raw materials to the computer processing system. The computer processing system determines the material supply station based on the priority weight value of each station according to the cumulative statistical value of the original processing data of each slitting station, or interrupts the original material supply sequence and inserts an instruction to provide raw materials to the requesting station according to the compensation material request sent by the station. After the interruption service ends, it continues to supply materials to the station according to the material supply sequence before the interruption.

[0060] After receiving the workstation material allocation instruction sent by the computer processing system, the material falls into the slitting line conveyor belt. As the conveyor belt moves, when the front-end photoelectric recording instrument is triggered, the instrument records the material position information and transmits the position information to the computer processing system. The computer processing system controls the material to flow into the designated workstation based on the material demand station information and the position information.

[0061] After the semi-finished products are processed, they are placed into the finished product storage tank. The computer processing system determines the delivery time of semi-finished products for each station based on the working time of the original quantitative raw material processing at each station in the early stage. For example, if the average processing time of the quantitative raw material at a certain station in the early stage is 6 minutes, the computer processing system can set the delivery time to half or one-third of the average processing time, and reduce the time that the products stay on the production line by taking small batches and multiple times. Each station can also send a delivery request to the computer processing system by using the compensation delivery button according to the actual processing status. The computer processing system will then interrupt the original set delivery time and send a delivery instruction to the pusher cylinder of the finished product storage tank to push the semi-finished products to the semi-finished product conveyor belt. At the same time, the current position information of the semi-finished products and the information of the station operators are recorded.

[0062] The material delivery distance at each workstation is measured by photoelectric recording instruments on the semi-finished product conveyor belt. When the material delivery position of the workstation requesting compensation delivery is lower than the semi-finished products being transported on the semi-finished product conveyor belt at other workstations, the computer processing system will not process the compensation delivery application or will postpone the processing to avoid mixing and making it impossible to determine the specific processing worker of the product.

[0063] The location information of the semi-finished product is determined by a photoelectric recording instrument. The photoelectric recording instrument combines the workstation information with the weight information of the semi-finished product after dynamic weighing by the semi-finished product belt weighing scale and transmits it to the computer system.

[0064] When the semi-finished product belt weighing scale is weighing, the gooseneck elevator is positioned and waiting; after the semi-finished product belt weighing scale is dynamically weighed, the gooseneck elevator receives the material and lifts the semi-finished product to the designated work station according to the work station position instructions and control instructions sent by the computer processing system. The computer information system allocates semi-finished products according to the material request put forward by the work station of the finishing line or the minimum weight requirement weight determined in advance by each work station.

[0065] After allocation, the raw materials fall into the trimming line conveyor belt, triggering the front-end photoelectric recording instrument to record the semi-finished product position information and send the position information to the computer processing system. The computer processing system sends the workstation position information and control instructions to precisely control the semi-finished products to flow into the designated workstation.

[0066] After the finished products are repaired, they are placed in the finished product storage tank. The computer processing system determines the delivery time of semi-finished products for each station based on the working time of the original repair and processing of the quantitative raw materials in the early stage. The delivery time is usually less than the average time of each station according to statistics. When an individual station submits a delivery request, the computer processing system interrupts the normal sorting and prioritizes processing. When processing, it is necessary to take into account the principle of ensuring the safe distance between each station during delivery.

[0067] The finished products after repair are sent to a finished product belt weighing scale for dynamic weighing, and the workstation information and weight information are transmitted to the computer processing system. Finished products and waste products are recycled separately, and the process is completed.

[0068] In addition, quality inspection stations are set up on the slitting line and the adjustment line. Before the semi-finished or finished products are conveyed to the weighing belt scale for weighing, the quality inspection station randomly takes samples from the finished or semi-finished products on the conveyor belt for quality inspection. The quality inspection results are transmitted to the computer processing system along with the station information.

[0069] In addition, each processing station is equipped with a cleaning system to clean the work surface and work area after processing at any time;

[0070] The computer processing system fixes specific workstations based on location information, calculates the yield of raw materials for each slicing workstation based on the ratio of the initial weight data of raw materials to the weight data of semi-finished products assigned to that workstation, calculates the work efficiency of that workstation based on the total weight of products processed per unit time, and takes the median value of the work efficiency of all workstations as the benchmark value, determines the weight value of each workstation according to a certain ratio, and determines the ranking order of each workstation.

[0071] The workstations are ranked by a computer processing system that performs a weighted statistical sort based on the processing information collected periodically from each workstation. This period can be a week's work time. The pre-set quantitative material supply and delivery times are temporarily adjusted based on new statistical data obtained during actual work. For example, if the delivery time is generally shortened on a certain day due to insufficient raw material supply, the computer processing system can adjust the delivery time proportionally, such as shortening the delivery time to 80% of the original time, to adapt to changes in specific circumstances.

[0072] The computer processing system can also adjust the standard weight of the double weighing hopper according to temporary changes to adapt to changes in the quantity of raw materials supplied.

[0073] Addressing the problems of existing fish processing production lines, which are generally characterized by stand-alone operation, low levels of equipment informatization and automation, low production efficiency, and frequent cheating, this invention presents an automated fish product processing line. It utilizes an industrial control computer as the intelligent brain, combined with Modbus-TCP communication to control key PLC components. This achieves integrated control, automatically and rationally allocating raw materials and delivering finished products based on employee processing efficiency. It facilitates the statistical analysis of operator workload and efficiency, and enhances production supervision. Production efficiency is significantly improved, with product online time reduced by at least half compared to existing technologies. Product defect rates are reduced, and data is displayed in real time, making it crucial for improving enterprise production efficiency and economic benefits.

[0074] 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 of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fish product processing production line, comprising a feeding mechanism, a hopper weighing scale, a metering belt scale, a conveyor belt, processing stations, and a computer processing system, wherein, The feeding mechanism includes a raw material storage hopper (1) and a first gooseneck elevator (2) for conveying raw materials to a hopper weighing scale (3); the hopper weighing scale (3) and a metering belt scale are used to weigh the initial weight and the weight after processing of the raw materials, respectively, and transmit the weight data to a computer processing system; the conveyor belt is used to transport the raw materials to the processing station for processing, and to transport the processed products and waste products to subsequent processing steps, characterized in that, The hopper weighing scale (3) transmits a fixed amount of raw materials to the conveyor belt according to the weight standard set by the computer processing system; the conveyor belt supplies materials to the designated processing station according to the feeding sequence set by the computer processing system; the feeding sequence is determined by the computer processing system based on the historical processing data collected by the hopper weighing scale (3) and the metering belt scale for each processing station, and the computer processing system sorts the materials based on the statistical average of the amount of work completed by each station within a certain period of time, and supplies the raw materials to the station with the highest processing efficiency first. The processing station also includes a control box (23), which includes a material supply request button and a material delivery request button, used to interrupt the material supply and delivery sequence preset by the computer processing system, and to obtain raw materials or deliver materials first.

2. The fish product processing production line according to claim 1, characterized in that, The processing station includes a slitting line (4) processing station and a trimming line (7) processing station. The slitting line (4) processing station uses a semi-finished product metering belt scale (5) and a second gooseneck elevator (6) to transport the slitting semi-finished products to the trimming line (7) processing station.

3. The fish product processing production line according to claim 2, characterized in that, The processing station is composed of processing station units with the same structure spliced ​​together at equal intervals along both sides of the conveyor belt.

4. A fish product processing production line according to claim 3, characterized in that, The processing station unit includes a raw material storage tank (18), a worktable (20), and a finished product storage tank (22). The raw material storage tank (18) is used to receive raw materials conveyed by the conveyor belt. The worktable (20) is used to process the raw materials. The finished product storage tank (22) is used to temporarily store the processed products. The finished product storage tank (22) is connected to a pusher cylinder (26). The pusher cylinder (26) pushes the products in the finished product storage tank (22) into the subsequent process according to the delivery time preset by the computer processing system.

5. A fish product processing production line according to claim 4, characterized in that, The processing station unit also includes a foldable pedal (16), the vertical distance between the pedal (16) and the workbench (20) being adjustable.

6. A fish product processing production line according to claim 4, characterized in that, The processing station unit also includes a cleaning system for cleaning the workbench (20) and the work area.

7. A fish product processing production line according to claim 1, characterized in that, The conveyor belt includes a layered raw material conveyor belt, a processed product conveyor belt (32, 35), and a waste conveyor belt (33, 36). The raw material conveyor belt is used to receive and transport raw materials to designated processing stations. The processed product conveyor belt (32, 35) is used to transport the processed products to subsequent processes. The waste conveyor belt (33, 36) is used to transport the waste generated after processing to a recycling location.

8. A fish product processing production line according to claim 7, characterized in that, The raw material conveyor belt is provided with swing arms (21) or push arms on both sides to guide the raw materials on the conveyor belt to the raw material storage tank (18) of the designated processing station.

9. A fish product processing production line according to claim 1, characterized in that, The hopper weighing scale (3) consists of a left weighing hopper (9) and a right weighing hopper (11) arranged in parallel. A flap (10) is provided between the left weighing hopper (9) and the right weighing hopper (11) for cyclical and alternating quantitative feeding.

10. A fish product processing production line according to claim 2, characterized in that, The weighing belt scale includes a semi-finished product weighing belt scale (5) set at the end of the slitting line (4) and a finished product weighing belt scale (8) set at the end of the trimming line (7). Both the semi-finished product weighing belt scale (5) and the finished product weighing belt scale are equipped with weighing sensors for dynamic weighing and transmitting weight data to the computer processing system.

11. A fish product processing production line according to claim 2, characterized in that, The slitting line (4) and trimming line (7) are equipped with photoelectric recording instruments to record the station information of raw materials and products entering and leaving the station, and transmit the station information to the computer processing system.

12. A method for processing a fish product, comprising the following steps: The raw materials in the temporary storage hopper are fed into the hopper weighing scale via a gooseneck elevator. The hopper weighing scale receives raw materials, weighs and discharges them quantitatively, and transmits the initial weight data to the computer processing system. The movement of raw materials on the conveyor belt triggers a photoelectric recording instrument, which then transmits the raw material's position information to a computer processing system. The computer processing system sends instructions to the swing arm cylinder of the designated workstation according to the pre-set feeding sequence, guides the raw materials into the designated workstation, and fixes the workstation position information; the pre-set feeding sequence of the computer processing system is determined by weighted calculation of the processing statistics of each workstation obtained by the computer processing system within a certain period to set the priority order for feeding and delivering materials. The finished products at the processing station are stored in the finished product storage tank. When the pre-set delivery time of the processing station is met and the delivery safety range of each station is met, the products are pushed to the conveyor belt and transported to the metering belt scale. The processing station has the right to request compensation, which is to interrupt the pre-set material supply or delivery sequence of the computer processing system by sending a request to the computer processing system to obtain raw materials or deliver materials first. The weighing belt scale dynamically weighs the products and transmits the acquired product weight data and processing station location information to the computer processing system for storage. The conveyor belt of the metering belt scale transports products to subsequent processes.

13. A method for processing a fish product according to claim 12, characterized in that, It also has a quality inspection station, which is used to conduct quality inspection sampling on the products before they are transported to the weighing belt scale, and transmit the sampling results to the computer processing system.

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