Method for sorting and cleaning materials
Patent Information
- Application Number
- CN202611225348.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-08-13
- Publication Date
- 2026-10-30
AI Technical Summary
[0003]目前，部分加工企业采用简易分拣清洗台进行辅助作业，但现有简易设备仍存在诸多不足：其一，在生产线上往往会设置多个分拣清洗台，这就需要有专门的人员去监控每个分拣清洗台上待洗内脏的剩余量，再对剩余量少的分拣清洗台分配待洗内脏，增加了作业工序，降低了生产效率；其二，分拣工位的布局不合理，多为单一工位或无序分布，工作人员操作时需频繁移动，进一步增加了劳动强度，且不利于多名操作人员协同作业；其三，缺乏自动化信息采集与追溯手段，无法将内脏信息与对应物料批次、加工工位自动关联，物料全生命周期追溯性差，不利于精细化生产管理与质量控制
[0021]本发明通过每个分拣清洗台的称重机构实时检测待处理物料剩余重量，控制系统自动识别剩余量最少的工位并控制启闭机构打开导料通道完成物料输送，替代了传统专人监控、人工调度的作业模式，减少人工工序。同时预设优先级规则解决多工位剩余量相同的冲突问题，避免物料堆积或空台等待，确保各工位负荷均衡，最大化利用生产能力。
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Figure CN122997172A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of material cleaning and sorting technology, and in particular to a material sorting and cleaning method. Background Technology
[0002] The material described in this invention can be pig offal. In the pig slaughtering and processing industry, the sorting and cleaning of pig offal is a key pre-processing step for subsequent processing, packaging and sales. Its processing efficiency, cleanliness and sorting accuracy directly affect product quality, production efficiency and food safety.
[0003] Currently, some processing enterprises use simple sorting and cleaning stations for auxiliary operations, but the existing simple equipment still has many shortcomings: First, multiple sorting and cleaning stations are often set up on the production line, which requires dedicated personnel to monitor the remaining amount of offal to be washed on each sorting and cleaning station, and then allocate offal to sorting and cleaning stations with less remaining offal, increasing the number of operation steps and reducing production efficiency; Second, the layout of sorting stations is unreasonable, mostly single stations or randomly distributed, requiring workers to move frequently during operation, further increasing labor intensity and hindering the collaborative work of multiple operators; Third, there is a lack of automated information collection and traceability methods, making it impossible to automatically associate offal information with corresponding material batches and processing stations, resulting in poor traceability of the entire material life cycle, which is not conducive to refined production management and quality control.
[0004] This invention is based on the above circumstances. Summary of the Invention
[0005] This invention overcomes the shortcomings of the prior art and provides a material sorting and cleaning method based on real-time dynamic load balancing and information traceability.
[0006] This invention is achieved through the following technical solution:
[0007] A material sorting and cleaning method includes a control system and a material conveyor line. Several sorting and cleaning stations are spaced apart along the conveying direction of the material conveyor line. Each sorting and cleaning station on the material conveyor line is equipped with a read / write unit, a guide channel for conveying materials to the sorting and cleaning station, and an opening / closing mechanism for the guide channel. Each sorting and cleaning station includes a workbench. A weighing mechanism connected to the control system is located in the center of the workbench. The weighing mechanism has a bearing plate for docking with the guide channel. Several sorting stations are distributed circumferentially on the workbench. Each sorting station has a discharge hopper. A cleaning spray device for spraying cleaning media is located above each discharge hopper. A waste collection and discharge device for centrally discharging waste material is located below each discharge hopper. The material sorting and cleaning steps are as follows:
[0008] S1.1 Place the material to be processed with the read / write tag on the material conveyor line. The control system controls the opening and closing mechanism at the sorting and cleaning station with the smallest weight of the material to be processed to open the corresponding guide channel according to the weight of the material to be processed weighed by each sorting and cleaning station. The material conveyor line transports the material to be processed to the guide channel and to the sorting and cleaning station. The read / write unit at this station reads the read / write tag information and sends it to the control system. The control system records the read / write tag information and the sorting and cleaning station information.
[0009] S1.2. The priority of each sorting and cleaning station is preset on the control system. When the weight of the material to be processed measured by two or more sorting and cleaning stations is the minimum, the opening and closing mechanism at the sorting and cleaning station with the highest priority opens the corresponding material guide channel. The material conveyor line transports the material to be processed to the material guide channel and sends it to the sorting and cleaning station. The reading and writing unit at this station reads and writes the tag information and sends it to the control system. The control system records the tag information and the sorting and cleaning station information.
[0010] S2.1 Operators at the sorting station take materials to be processed from the trays and perform sorting and cleaning operations.
[0011] As described above, a material sorting and cleaning method includes a material conveying line comprising a frame and a conveyor belt mounted on the frame. The opening and closing mechanism includes a mounting frame mounted on the frame, on which a guide plate is rotatably connected. The guide plate has an open state (opening the guide channel) and a closed state (closing the guide channel). The mounting frame is also provided with a drive mechanism that switches the guide plate between the open and closed states. When the guide plate is in the open state, the angle between the length direction of the guide plate and the conveying direction of the conveyor belt is an acute angle, so that the conveyor belt carries the material to be processed along the guide plate into the guide channel as it travels.
[0012] In the material sorting and cleaning method described above, the guide channel is inclined, and its height decreases as it gets closer to the bearing plate.
[0013] In the material sorting and cleaning method described above, the workbench has a clearance opening in the middle, and the weighing mechanism includes several weighing sensors disposed between the workbench and the carrier plate to weigh the carrier plate and suspend the carrier plate at the clearance opening.
[0014] As described above, in a material sorting and cleaning method, the edge of the workbench is provided with an outer material blocking edge, the workbench is provided with an inner material blocking edge at the clearance opening, and the upper surface of the workbench is provided with several material blocking strips. The outer material blocking edge, the inner material blocking edge, and the material blocking strips work together to form a clean material trough for placing the cleaned products.
[0015] In the material sorting and cleaning method described above, a drain trough is also connected to the workbench. The drain trough is located below the support plate. The inner edge of the baffle is provided with a notch for the liquid in the clean material tank to flow into the drain trough. The support plate is provided with a drain hole for the liquid to be discharged into the drain trough. The bottom of the drain trough is provided with a drain hole.
[0016] As described above, in a material sorting and cleaning method, the waste collection and discharge device includes a main discharge trough and sub-discharge troughs. The main discharge trough has a discharge port at its front end. The number of sub-discharge troughs is the same as the number of discharge hoppers. One end of each sub-discharge trough is connected to the main discharge trough, and the other end of each sub-discharge trough extends to the bottom of its corresponding discharge hopper.
[0017] In the material sorting and cleaning method described above, the main discharge chute is inclined and gradually decreases in height from back to front; the sub-discharge chute is inclined and decreases in height as it gets closer to the main discharge chute.
[0018] The material sorting and cleaning method described above includes a control system comprising a computer control component.
[0019] In the material sorting and cleaning method described above, the reading and writing unit includes an RFID reader and the reading and writing tag includes an RFID reading and writing tag.
[0020] Compared with the prior art, the present invention has the following advantages:
[0021] This invention uses a weighing mechanism at each sorting and cleaning station to detect the remaining weight of the materials to be processed in real time. The control system automatically identifies the station with the least remaining weight and controls the opening and closing mechanism to open the material conveying channel, replacing the traditional operation mode of dedicated monitoring and manual scheduling, thus reducing manual steps. At the same time, preset priority rules resolve conflicts caused by the same remaining weight at multiple stations, avoiding material accumulation or empty stations, ensuring balanced load at each station, and maximizing the utilization of production capacity.
[0022] The workstation layout is optimized to reduce labor intensity. A design with evenly distributed sorting stations around the perimeter of the workbench is adopted, with materials to be processed centrally placed on a central support tray. Workers do not need to move frequently and can complete operations within their own workstation area. Each sorting station is independently equipped with a cleaning spray device and a discharge hopper, enabling one-stop operation for sorting, cleaning, and waste disposal, eliminating the need to travel between different functional areas. The perimeter layout also makes full use of space, facilitating collaborative work among multiple personnel without interference.
[0023] An automated information traceability system is built to enhance quality control capabilities. By linking RFID tags on materials with RFID reader / writer units at corresponding workstations, material information is automatically collected and uploaded, avoiding errors and omissions from manual data entry. The control system automatically links material RFID information with sorting and cleaning station information, further binding basic data such as material batches, material sources, and material cleaning requirements. This enables full-process traceability of materials from transportation to processing, providing data support for food safety control and refined production management. Attached Figure Description
[0024] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:
[0025] Figure 1 This is a schematic diagram of the structure of the present invention;
[0026] Figure 2 This is a schematic diagram of the material guiding channel, opening and closing mechanism, and sorting and cleaning table in this invention;
[0027] Figure 3 This is a schematic diagram of the opening and closing mechanism in this invention;
[0028] Figure 4 This is a schematic diagram of the sorting and cleaning table in this invention. Figure 1 ;
[0029] Figure 5 This is an exploded view of the sorting and cleaning station in this invention;
[0030] Figure 6 This is a schematic diagram of the sorting and cleaning table after removing the upper part in this invention;
[0031] Figure 7 This is a schematic diagram of the sorting and cleaning table in this invention. Figure 2 ;
[0032] Figure 8 This is a schematic diagram of the weighing mechanism in this invention. Detailed Implementation
[0033] The present invention will now be further described with reference to the accompanying drawings:
[0034] like Figures 1 to 8The illustrated material sorting and cleaning method includes a control system 1 and a material conveying line 2. Several sorting and cleaning stations 3 are spaced apart along the conveying direction of the material conveying line 2. Each sorting and cleaning station 3 on the material conveying line 2 is equipped with a read / write unit 4, a guide channel 5 for conveying materials to be processed to the sorting and cleaning station 3, and an opening / closing mechanism 6 for opening and closing the guide channel 5. Each sorting and cleaning station 3 includes a workbench 31. A weighing mechanism 32, communicatively connected to the control system 1, is located in the center of the workbench 31. The weighing mechanism 32 has a bearing plate 33 for docking with the guide channel 5. Several sorting stations are distributed circumferentially on the workbench 31. Each sorting station is equipped with a discharge hopper 34. A cleaning spray device 35 sprays cleaning media onto the discharge hopper 34, and a waste collection and discharge device 36 collects and discharges waste materials below each discharge hopper 34. The material sorting and cleaning steps are as follows:
[0035] S1.1 Place the material to be processed with the read / write tag on the material conveyor line 2. The control system 1 controls the opening and closing mechanism 6 at the sorting and cleaning table 3 with the smallest weight of the material to be processed to open the corresponding guide channel 5 according to the weight of the material to be processed weighed by each sorting and cleaning table 3. The material conveyor line 2 transports the material to be processed to the guide channel 5 and sends it to the sorting and cleaning table 3. The read / write unit 4 at this location reads the read / write tag information and sends it to the control system 1. The control system 1 records the read / write tag information and the information of the sorting and cleaning table 3.
[0036] S1.2. The priority of each sorting and cleaning station 3 is preset on the control system 1. When the weight of the material to be processed weighed by two or more sorting and cleaning stations 3 is the minimum, the opening and closing mechanism 6 at the sorting and cleaning station 3 with the highest priority opens the corresponding material guide channel 5. The material conveyor line 2 transports the material to be processed to the material guide channel 5 and sends it to the sorting and cleaning station 3. The reading and writing unit 4 at this location reads and writes the tag information and sends it to the control system 1. The control system 1 records the tag information and the information of the sorting and cleaning station 3.
[0037] The read / write tag can be an RFID read / write tag, and the read / write unit 4 can be an RFID reader / writer; of course, the read / write tag can also be other types of information chips, and the read / write unit can be a corresponding information read / write device.
[0038] The RFID tag information mentioned above can include material batch, material source, material cleaning requirements, etc. Control system 1 can be a computer control component or a combination of a computer control component and a PLC controller. Cleaning spray device 35 can be a water supply pipeline and a faucet.
[0039] S2.1 Personnel at the sorting station take the materials to be processed from the carrier tray 33 and perform sorting and cleaning operations.
[0040] This invention uses the weighing mechanism 32 of each sorting and cleaning station 3 to detect the remaining weight of the materials to be processed in real time. The control system 1 automatically identifies the station with the least remaining amount and controls the opening of the material guide channel 5 to transport the materials. At the same time, preset priority rules resolve conflicts when multiple stations have the same remaining amount, replacing the traditional manual monitoring and scheduling mode, balancing the load of the stations and improving production efficiency. It adopts an optimized layout with sorting stations evenly distributed around the workbench 31. The materials to be processed are concentrated in the central support plate 33. Each station is independently equipped with a cleaning spray device 35 and a discharge hopper 34, realizing one-stop operation of sorting, cleaning and waste discharge. This reduces the labor intensity of workers and makes full use of space to facilitate collaborative work by multiple people. Furthermore, it constructs an automated information traceability system through material RFID tags and corresponding RFID reading and writing units of the workstations, automatically collecting and uploading material information and associating it with full-process data, providing data support for food safety control and refined production management.
[0041] Specifically, the material conveying line 2 includes a frame 21 and a conveyor belt 22 mounted on the frame 21. The opening and closing mechanism 6 includes a mounting frame 61 mounted on the frame 21. A guide plate 62 is rotatably connected to the mounting frame 61. The guide plate 62 has an open state for opening the guide channel 5 and a closed state for closing the guide channel 5. The mounting frame 61 is also provided with a drive mechanism 63 that drives the guide plate 62 to switch between the open state and the closed state. When the guide plate 62 is in the open state, the angle α between the length direction of the guide plate 62 and the conveying direction of the conveyor belt 22 is an acute angle, so that the conveyor belt 22 carries the material to be processed along the guide plate 62 into the guide channel 5 when it is moving.
[0042] The opening and closing mechanism 6 opens and closes the channel solely through the rotatable guide plate 62, and fully utilizes the travel friction of the conveyor belt 22 to drive the material along the inclined guide plate 62 into the guide channel 5. This eliminates the need for additional pushing components such as push rods, push plates, or air blowing devices in traditional solutions, reducing the number of parts and lowering equipment manufacturing costs and operating energy consumption.
[0043] The aforementioned drive mechanism 63 can be a cylinder, or of course, other electric steering mechanisms.
[0044] Furthermore, the material guiding channel 5 is inclined, and its height decreases as it approaches the bearing plate 33. The material naturally slides down to the bearing plate 33 by its own gravity, eliminating the need for additional conveying power devices such as motors and rollers. This simplifies the material guiding structure and reduces manufacturing costs and operating energy consumption. At the same time, the material slides down smoothly without forced pushing force, which is suitable for the characteristics of soft and fragile materials such as pig offal. This effectively avoids problems such as squeezing, breakage, and adhesion of materials during the guiding process, ensuring the integrity of the materials and product quality.
[0045] In some embodiments, the workbench 31 has a clearance opening 311 in the middle, and the weighing mechanism 32 includes a plurality of weighing sensors 321 disposed between the workbench 31 and the support plate 33 to weigh the support plate 33 and suspend the support plate 33 at the clearance opening 311. This reduces the vertical space occupied by the equipment, facilitates installation and use in workshops with limited ceiling height, lowers the working height of operators, and further optimizes the ergonomic experience.
[0046] Furthermore, at least two load cells 321 are evenly distributed around the circumference of the support plate 33. This multi-point uniform suspension eliminates off-center loading errors and eliminates redundant limiting structures. Multiple load cells 321 share the total weight of the support plate 33 and the material, significantly reducing the rated load requirement of a single sensor. Therefore, smaller and thinner load cells 321 can be selected. A waterproof cover 322 is provided on the outside of the load cell 321. The waterproof cover 322 prevents sewage, blood, grease, and solid impurities from entering the sensor, thereby avoiding problems such as sensor corrosion, short circuits, or decreased sensitivity, and increasing the service life of the load cell 321.
[0047] In some embodiments, the workbench 31 has an outer retaining edge 312 on its edge and an inner retaining edge 313 at the clearance opening 311. The upper surface of the workbench 31 has several retaining strips 314. The outer retaining edge 312, the inner retaining edge 313, and the retaining strips 314 work together to form a clean material trough 315 for placing the washed products. The retaining strips 314 divide the surface of the workbench 31 into independent clean material troughs 315 corresponding to each sorting station. After sorting and cleaning, operators can directly place the materials into the corresponding trough for temporary storage, eliminating the need for cross-station transfers or the use of additional containers, significantly shortening the operation path and improving operational efficiency.
[0048] Furthermore, one end of the weighing sensor 321 is connected to the bearing plate 33, and the other end is connected to the upper part of the stop bar 314. By directly using the upper part of the stop bar 314 as the fixed mounting base for the weighing sensor 321, there is no need to add redundant components such as a special weighing mounting beam or support bracket, which reduces the number of parts, simplifies the assembly process, and lowers the manufacturing cost.
[0049] In some embodiments, a drain trough 37 is also connected to the workbench 31. The drain trough 37 is located below the support plate 33. The inner edge 313 of the baffle has a notch 3131 for the liquid from the clean material tank 315 to flow into the drain trough 37. The support plate 33 has a drain hole 331 for the liquid to drain into the drain trough 37. The bottom of the drain trough 37 has a drain hole 371. The shared drain trough 37 is set up by directly utilizing the unused vertical space below the support plate 33. The notch 3131 receives the cleaning wastewater from all the clean material tanks 315 and the drain water from the material to be washed discharged through the drain hole 331. The originally dispersed multi-source liquids are collected and discharged through the bottom drain hole 371.
[0050] Furthermore, the waste collection and discharge device 36 includes a main discharge trough 361 and sub-discharge troughs 362. The front end of the main discharge trough 361 is provided with a discharge port 3611. The number of sub-discharge troughs 362 is the same as the number of discharge hoppers 34. One end of each sub-discharge trough 362 is connected to the main discharge trough 361, and the other end of each sub-discharge trough 362 extends to the bottom of its corresponding discharge hopper 34.
[0051] Waste materials from each workstation are directly collected by separate discharge troughs 362, which correspond one-to-one with the discharge hoppers 34, and then discharged centrally through the main discharge trough 361. This ensures that the waste materials from each discharge hopper 34 fall accurately into their corresponding troughs, preventing spillage, and eliminates the need for a large, integrated waste discharge trough covering the entire area under the workbench 31, further enhancing the compactness of the overall structure. Furthermore, only a discharge port 3611 needs to be installed at the front end of the main discharge trough 361, simplifying the layout of external sewage pipes or waste collection devices and reducing installation and maintenance costs.
[0052] Furthermore, the sub-discharge troughs 362 are inclined, and their height decreases as they approach the main discharge trough 361, so that all cleaning wastewater, internal organs, debris, and grease can flow from the sub-discharge troughs 362 into the main discharge trough 361 by their own gravity, and finally be discharged from the front discharge port 3611 without the need to install any power waste discharge devices such as water pumps or screw conveyors.
Claims
1. A method for sorting and cleaning materials, characterized in that: The system includes a control system (1) and a material conveying line (2). Along the conveying direction of the material conveying line (2), several sorting and cleaning stations (3) are spaced apart. The material conveying line (2) also includes a reading / writing unit (4) corresponding to each sorting and cleaning station (3), a guide channel (5) for sending materials to be processed to the sorting and cleaning station (3), and an opening / closing mechanism (6) for opening and closing the guide channel (5). Each sorting and cleaning station (3) includes a workbench (31), and the workbench (31) has a central section for... The control system (1) is connected to a weighing mechanism (32). The weighing mechanism (32) is equipped with a bearing plate (33) for docking with the material guide channel (5). The workbench (31) has several sorting stations distributed around its perimeter. Each sorting station is equipped with a discharge hopper (34). Above the discharge hopper (34) is a cleaning spray device (35) that sprays cleaning medium onto it. Below each discharge hopper (34) is a waste collection and discharge device (36) for centralized discharge of waste materials. The material sorting and cleaning steps are as follows: S1.1 Place the material to be processed with the read / write tag on the material conveyor line (2). The control system (1) controls the opening and closing mechanism (6) at the sorting and cleaning station (3) with the smallest weighing weight of the material to be processed to open the corresponding guide channel (5). The material conveyor line (2) transports the material to be processed to the guide channel (5) and sends it to the sorting and cleaning station (3). The read / write unit (4) at that location reads the read / write tag information and sends it to the control system (1). The control system (1) records the read / write tag information and the sorting and cleaning station (3) information. S1.
2. The priority of each sorting and cleaning station (3) is preset on the control system (1). When the weight of the material to be processed measured by two or more sorting and cleaning stations (3) is the minimum, the opening and closing mechanism (6) at the sorting and cleaning station (3) with the highest priority opens the corresponding guide channel (5). The material conveying line (2) transports the material to be processed to the guide channel (5) and sends it to the sorting and cleaning station (3). The reading and writing unit (4) at this location reads and writes the label information and sends it to the control system (1). The control system (1) records the label information and the information of the sorting and cleaning station (3). S2.1 The operators at the sorting station take the materials to be processed from the carrier tray (33) and perform sorting and cleaning operations.
2. The material sorting and cleaning method according to claim 1, characterized in that: The material conveying line (2) includes a frame (21) and a conveyor belt (22) mounted on the frame (21). The opening and closing mechanism (6) includes a mounting frame (61) mounted on the frame (21). A guide plate (62) is rotatably connected to the mounting frame (61). The guide plate (62) has an open state for opening the guide channel (5) and a closed state for closing the guide channel (5). The mounting frame (61) is also provided with a drive mechanism (63) that drives the guide plate (62) to switch between the open state and the closed state. When the guide plate (62) is in the open state, the angle between the length direction of the guide plate (62) and the conveying direction of the conveyor belt (22) is an acute angle, so that the conveyor belt (22) can drive the material to be processed to move along the guide plate (62) into the guide channel (5) when it is moving.
3. The material sorting and cleaning method according to claim 2, characterized in that: The material guide channel (5) is inclined, and its height is lower as it gets closer to the bearing plate (33).
4. A material sorting and cleaning method according to any one of claims 1-3, characterized in that: The workbench (31) has a clearance opening (311) in the middle. The weighing mechanism (32) includes several weighing sensors (321) located between the workbench (31) and the support plate (33) to weigh the support plate (33) and suspend the support plate (33) at the clearance opening (311).
5. The material sorting and cleaning method according to claim 4, characterized in that: The workbench (31) has an outer edge (312) for material blocking, an inner edge (313) for material blocking at the clearance opening (311) on the workbench (31), and a number of material blocking strips (314) on the upper surface of the workbench (31). The outer edge (312), the inner edge (313), and the material blocking strips (314) work together to form a clean material trough (315) for placing the washed products.
6. The material sorting and cleaning method according to claim 5, characterized in that: The workbench (31) is also connected to a drain trough (37), which is located below the support plate (33). The inner edge (313) of the baffle is provided with a notch (3131) for the liquid in the clean material tank (315) to flow into the drain trough (37). The support plate (33) is provided with a drain hole (331) for the liquid to be discharged into the drain trough (37). The bottom of the drain trough (37) is provided with a drain hole (371).
7. A material sorting and cleaning method according to claim 6, characterized in that: The waste collection and discharge device (36) includes a main discharge trough (361) and a sub-discharge trough (362). The main discharge trough (361) has a discharge port (3611) at its front end. The number of sub-discharge troughs (362) is the same as the number of discharge hoppers (34). One end of each sub-discharge trough (362) is connected to the main discharge trough (361), and the other end of each sub-discharge trough (362) extends to the bottom of its corresponding discharge hopper (34).
8. The material sorting and cleaning method according to claim 7, characterized in that: The main discharge trough (361) is inclined and gradually decreases from back to front; the sub-discharge trough (362) is inclined and decreases in height as it gets closer to the main discharge trough (361).
9. A material sorting and cleaning method according to any one of claims 1-3, characterized in that: The control system (1) includes a computer control component.
10. A material sorting and cleaning method according to claim 9, characterized in that: The reading and writing unit (4) includes an RFID reader and the reading and writing tag includes an RFID reading and writing tag.