Oyster processing production line

Abstract

The utility model discloses an oyster processing production line, and belongs to the technical field of oyster processing. Comprising an auxiliary conveying device for machining, an automatic screening device and a weighing and boxing device, a first feeding device is arranged between the auxiliary conveying device for machining and the automatic screening device, and a second feeding device is arranged between the automatic screening device and the weighing and boxing device. The feeding device has the beneficial effects that to-be-processed oysters are fed by the upper-layer feeding belt instead of manual feeding, so that the efficiency is improved, and the working intensity is reduced; and automatic weighing and bagging are achieved, and the labor cost is reduced.

Description

Technical Field

[0001] This utility model relates to an oyster processing production line, belonging to the field of oyster processing technology. Background Technology

[0002] Aquatic products such as oysters often have shells that clump together after being harvested. These clumps need to be manually broken apart into individual shells. Traditionally, this involves manually dumping and piling the oysters at the processing site, where workers use oyster-splitting knives to separate them. The separated oysters then need to be manually transported to a designated storage location, reducing efficiency. The separation process also generates waste, such as oyster shell residue, which requires manual cleaning, adding to the time and effort. Furthermore, oyster products need to be weighed quantitatively before being bagged. Current technology involves manual handling, filling, and weighing, resulting in low efficiency, high workload, and high labor costs. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an oyster processing production line that replaces manual labor in classifying and collecting finished products and waste materials from separation and processing, thereby improving efficiency and reducing labor intensity and labor costs.

[0004] The technical solution of this utility model is: an oyster processing production line, including an auxiliary conveying device for processing, an automatic screening device and a weighing and packing device, wherein a first feeding device is provided between the auxiliary conveying device for processing and the automatic screening device, and a second feeding device is provided between the automatic screening device and the weighing and packing device.

[0005] The auxiliary conveying device for processing includes an upper feeding belt and a lower conveyor belt, which are arranged vertically and driven by a motor. The lower conveyor belt includes a finished product conveyor belt and a waste material conveyor belt. Several processing workbenches are arranged on the side of the upper feeding belt. The processing workbenches are provided with finished product inlets and waste material inlets. The finished product inlets are connected to the finished product discharge pipe, and the outlet of the finished product discharge pipe is located above the finished product conveyor belt. The waste material inlets are connected to the waste discharge pipe, and the outlet of the waste discharge pipe is located above the waste material conveyor belt.

[0006] The waste conveyor belt is symmetrically arranged on both sides of the finished product conveyor belt. The discharge end of the waste conveyor belt is located above the waste discharge belt. A middle partition and a side partition are respectively provided on both sides of the waste conveyor belt.

[0007] The finished product conveyor belt discharge end is located above the first feeding device, which is an inclined first climbing conveyor belt. The waste material conveyor belt discharge end is located at the lower end of the first climbing conveyor belt.

[0008] The upper feeding belt and the lower conveyor belt are located on the support frame, and the bottom of the support frame legs are equipped with casters.

[0009] The weighing and packing device includes a feeding pipe inclinedly mounted on frame a, a hopper outlet connected to the lower end of the feeding pipe, a hopper inlet located below the discharge end of the second feeding device, a servo motor for driving a rotating shaft to rotate at the upper end of the feeding pipe, the rotating shaft passing through and rotatably connected to the feeding pipe, a spiral conveying blade located on the outer periphery of the rotating shaft inside the feeding pipe, a discharge port at the top of the feeding pipe, a receiving hopper located on frame a below the discharge port, a weighing sensor between the receiving hopper and frame a, the weighing sensor connected to a controller, a sliding baffle at the bottom outlet of the receiving hopper, the sliding baffle connected to a cylinder, and the controller controlling the cylinder and the servo motor.

[0010] The servo motor is connected to the reducer, and the reducer is connected to the rotating shaft through a coupling; the two ends of the rotating shaft are rotatably connected to the two ends of the feeding pipe through bearings, and the two ends of the feeding pipe are provided with bearing seats, and the bearings are located on the bearing seats; the sliding baffle is inclinedly set at the bottom of the receiving bin, and the cylinder is inclinedly fixed on the frame a through the cylinder seat.

[0011] The automatic screening device includes a discharge trough located at the bottom of the frame b, several layers of inclined vibrating screens above the discharge trough, with the mesh size of the vibrating screens decreasing from the top to the bottom, a material guiding device connected to the bottom of the vibrating screens, the vibrating screens located on a vibrating frame, a vibrating motor on the vibrating frame, and the vibrating frame being mounted on the frame b by springs.

[0012] The discharge chute is inclined, with the discharge port located at the lower end of the chute. The top of the frame b has an end plate, on which a guide post a is fixed. The bottom end of a spring is sleeved on the guide post a and fixed to the end plate. The top end of the spring is connected to a corner joint, which is connected to the vibrating frame. The vibrating screen has three layers, from top to bottom: vibrating screen a, vibrating screen b, and vibrating screen c. The guiding device is an inclined guiding chute, comprising guiding trough a, guiding trough b, and guiding trough c, which are respectively connected to vibrating screen a, vibrating screen b, and vibrating screen c. Mounting plates are provided on both sides of the vibrating frame, and the vibrating motor is fixed to the mounting plates.

[0013] The second feeding device is inclined, with the lower end being the feeding end and the higher end being the discharging end. The second feeding device includes a second inclined conveyor belt a, a second inclined conveyor belt b, and a second inclined conveyor belt c. The feeding end of the second inclined conveyor belt a is located below the outlet of the guide chute a, the feeding end of the second inclined conveyor belt b is located below the guide chute b, and the second inclined conveyor belt c is located below the guide chute c.

[0014] There are three hoppers, which are located below the discharge ends of the second inclined conveyor belt a, the second inclined conveyor belt b, and the second inclined conveyor belt c, respectively.

[0015] The beneficial effects of this utility model are: the products to be processed are fed by an upper feeding belt, replacing manual feeding, improving efficiency and reducing labor intensity; waste generated during the separation operation is collected into a waste collection box via a waste conveyor belt, and finished products are collected into a finished product collection box via a finished product conveyor belt, eliminating the need for manual operation and improving work efficiency. Feeding and filling are performed via a screw conveyor blade, and weighing is achieved by a weighing sensor. Once the weight reaches a predetermined value, the controller stops the servo motor, and simultaneously the cylinder starts, driving the sliding baffle to open, allowing the oysters of the predetermined weight to enter the bag below through the bottom outlet. This replaces manual operation, achieving automatic weighing and bagging, improving efficiency, and reducing labor intensity and labor costs. Attached Figure Description

[0016] Figure 1 This is an overall view of the present invention;

[0017] Figure 2 This is the front view of the auxiliary conveying device;

[0018] Figure 3 Top view of the auxiliary conveying device;

[0019] Figure 4 This is a side view of the auxiliary conveying device;

[0020] Figure 5 This is a structural diagram of the weighing and packing device;

[0021] Figure 6 This is a 3D view of an automatic screening device;

[0022] Figure 7 This is a side view of the automatic screening device.

[0023] Figure 8 This is a 3D view of the lower-level conveyor line.

[0024] The attached diagram is labeled as follows: 1.1 Upper feeding conveyor belt, 1.2 Finished product conveyor belt, 1.3 Waste material conveyor belt, 1.4 Processing workbench, 1.5 Finished product unloading pipe, 1.6 Waste material unloading pipe, 1.7 Support frame, 1.8 Casters, 1.9 Middle partition, 1.10 Side baffle, 2. First inclined conveyor belt, 3.1 Frame a, 3.2 Feeding pipe, 3.3 Hopper, 3.4 Servo motor, 3.5 Rotating shaft, 3.6 Screw conveyor blades, 3.7 Discharge port, 3.8 Receiving bin, 3.9 Weighing sensor, 3.10 3.11 Sliding baffle, 3.12 Cylinder, 3.13 Reducer, 3.14 Coupling, 3.15 Bearing seat, 4.1 Frame b, 4.2 Spring, 4.3 Vibrating frame, 4.4 Vibrating motor, 4.5 Discharge chute, 4.6 Corner joint, 4.7 End plate, 4.8 Vibrating screen a, 4.9 Vibrating screen b, 4.10 Vibrating screen c, 4.11 Guide chute a, 4.12 Guide chute b, 4.13 Mounting plate, 5.1 Second inclined conveyor belt a, 5.2 Second inclined conveyor belt b, 5.3 Second inclined conveyor belt c. Detailed Implementation

[0025] Example 1

[0026] The following is in conjunction with the appendix Figure 1-7 Further explanation of this utility model:

[0027] An oyster processing production line includes an auxiliary conveying device for processing, an automatic screening device, and a weighing and packing device. A first feeding device is provided between the auxiliary conveying device for processing and the automatic screening device, and a second feeding device is provided between the automatic screening device and the weighing and packing device.

[0028] refer to Figure 3-4The auxiliary conveying device for processing includes an upper feeding belt 1.1 and a lower conveyor belt arranged vertically. The lower conveyor belt includes a finished product conveyor belt 1.2 and a waste material conveyor belt 1.3. The waste material conveyor belt 1.3 is symmetrically arranged on both sides of the finished product conveyor belt 1.2. Several processing workbenches 1.4 are arranged on the side of the upper feeding belt 1.1. Each processing workbench 1.4 is equipped with a finished product inlet and a waste material inlet. The finished product inlet is connected to a finished product discharge pipe 1.5, the outlet of which is located above the finished product conveyor belt 1.2. The waste material inlet is connected to a waste material discharge pipe 1.6, the outlet of which is located above the waste material conveyor belt 1.3. A finished product collection box is provided at the discharge end of the finished product conveyor belt 1.2. A waste material collection box is provided at the discharge end of the waste material conveyor belt 1.3. Workers retrieve oysters to be processed from the upper feeding conveyor belt 1.1 and process them on the processing workbench 1.4. Waste residue and shells generated during processing are fed into the waste discharge pipe 1.6 through the waste discharge port. The waste falls onto the waste conveyor belt 1.3, which transports it to the waste collection box. From there, the waste falls onto the finished product conveyor belt 1.2 via the finished product discharge pipe 1.5. The finished product conveyor belt 1.2 transports the finished product to the first feeding device, which then transports it to the automatic screening device for screening. To prevent mixing of finished product and waste, refer to... Figure 8 The waste conveyor belt 1.3 is equipped with a middle partition 1.9 and a side partition 1.10 on both sides.

[0029] The upper feeding belt 1.1 and the lower conveyor belt are located on the support frame 1.7. The support frame 1.7 supports the upper feeding belt 1.1 and the lower conveyor belt. The bottom of the support legs of the support frame 1.7 is equipped with casters 1.8, which facilitate the movement of the entire equipment.

[0030] Both the upper feeding belt 1.1 and the lower conveyor belt are driven by motors. Both ends of the upper feeding belt 1.1 and the lower conveyor belt are equipped with drive rollers and driven rollers. The output end of the motor is connected to the drive rollers, which drive the upper feeding belt 1.1 and the lower conveyor belt to rotate. The driven rollers rotate with the belts.

[0031] It should be noted that: Figure 1The circular arrow indicates the direction of movement of the upper feeding belt 1.1, which moves in a circular motion. Oysters to be processed are placed onto the upper feeding belt 1.1, which then moves in a circular motion, transferring the oysters to the vicinity of each processing workbench 1.4 for easy handling and processing by workers. The finished product conveyor belt and waste conveyor belt located below the upper feeding belt provide unidirectional transport. The operating direction of this utility model's upper conveyor line is flexibly adjustable, featuring a ring structure composed of two 180-degree belts and two straight conveyor belts. Each conveyor belt is an independent unit, facilitating installation and adjustment. By precisely controlling the direction of each conveyor belt, the entire upper conveyor line ensures smooth material transport by running in a predetermined counter-clockwise direction.

[0032] refer to Figure 5 The weighing and packing device includes a feeding pipe 3.2 inclinedly mounted on a frame a3.1. A hopper 3.3 is located at the lower end of the feeding pipe 3.2. A servo motor 3.4 for driving a rotating shaft 3.5 to rotate is located at the upper end of the feeding pipe 3.2. Specifically, the servo motor 3.4 is connected to a reducer 3.12, which is connected to the rotating shaft 3.5 via a coupling 3.13. When the servo motor 3.4 rotates, it drives the rotating shaft 3.5 to rotate through the reducer 3.12 and coupling 3.13. The rotating shaft 3.5 passes through the feeding pipe 3.2, and both ends of the rotating shaft 3.5 are rotatably connected to both ends of the feeding pipe 3.2 via bearings. Bearing seats 3.14 are provided at both ends of the feeding pipe 3.2. The bearing is located on the bearing housing 3.14. The feeding pipe 3.2 is equipped with a spiral conveying blade 3.6 located on the outer periphery of the rotating shaft 3.5. The top of the feeding pipe 3.2 is equipped with a discharge port 3.7. Below the discharge port 3.7 is a receiving bin 3.8 located on the frame a3.1. A weighing sensor 3.9 is provided between the receiving bin 3.8 and the frame a3.1. The weighing sensor 3.9 is connected to a controller. A sliding baffle 3.10 is inclinedly provided at the bottom outlet of the receiving bin 3.8. The sliding baffle 3.10 is connected to a cylinder 3.11. The cylinder 3.11 is inclinedly fixed on the frame a3.1 through a cylinder seat. The controller is a PLC, used to control the cylinder 3.11 and the servo motor 3.4.

[0033] During operation, oysters are loaded into hopper 3.3, whose bottom is connected to feed pipe 3.2. Under gravity, the oysters in hopper 3.3 automatically enter feed pipe 3.2. Servo motor 3.4 drives rotating shaft 3.5 to rotate, which in turn drives spiral conveyor blades 3.6 to rotate. Spiral conveyor blades 3.6 obliquely convey the oysters entering feed pipe 3.2 upwards. The oysters move to discharge port 3.7 and automatically fall into receiving hopper 3.8 below. Weighing sensor 3.9 receives the oysters. The weight of oysters in bin 3.8 is monitored in real time. Once a preset value is reached, a signal is sent to the controller. Upon receiving the signal, the controller issues a command: servo motor 3.4 pauses operation, cylinder 3.11 starts, and cylinder 3.11 moves sliding baffle 3.10, opening the outlet at the bottom of bin 3.8. A bag containing oysters is placed below the outlet. The bag opening can be manually opened and aligned with the outlet at the bottom of bin 3.8, allowing the weighed oysters to fall directly into the bag. The bag is then manually sealed and removed. After the material reaches the empty weight, the controller issues another command, cylinder 3.11 moves sliding baffle 3.10 to close the outlet, and servo motor 3.4 resumes operation, continuing to feed oysters into bin 3.8, entering the next work cycle.

[0034] The weighing equipment employs a screw conveyor mechanism, transporting oysters layer by layer from the bottom of hopper 3.3 upwards. When the weight of the oysters in receiving hopper 3.8 approaches a preset value, the PLC monitors and precisely controls the rotation speed of servo motor 3.4 in real time. By adjusting the rotation speed of servo motor 3.4, the PLC gradually reduces the speed of the screw conveyor, thereby slowing down the oyster transport speed. This speed control significantly reduces the number of oysters falling into receiving hopper 3.8, even precisely controlling the number at the level of a single oyster. Through this control method, the weighing equipment can significantly improve the weight accuracy of the oysters in receiving hopper 3.8.

[0035] After debugging, the weighing equipment can precisely control the number of oysters falling into the receiving bin 3.8 to within the predetermined weight, allowing for the weight of one more or one less oyster. This control strategy takes into account that in actual operation, due to the uneven size and weight of oysters, the preset weight is often difficult to divide evenly by the number of oysters. When oysters fall into the receiving bin 3.8, the equipment monitors the total weight of the bin in real time and feeds this data back to the PLC system. The PLC system then dynamically adjusts and defines the final weight for this bagging based on the final output weight of the receiving bin 3.8. This flexible feedback mechanism ensures that the weight of oysters bagged each time accurately meets the predetermined requirements, neither too much nor too little, thus avoiding any impact on the customer experience.

[0036] To effectively prevent oysters from being damaged by collisions with metal during transportation, this application involves spraying a polyurethane coating onto all metal surfaces that come into direct contact with the oysters. The polyurethane coating possesses excellent abrasion resistance and impact resistance, acting as a robust protective barrier to significantly reduce direct friction and collisions between the oysters and metal, thereby effectively protecting the integrity of the oysters.

[0037] Furthermore, the polyurethane coating exhibits excellent corrosion resistance and adhesion, ensuring it won't peel off or become damaged during transport, providing a durable and reliable protective environment for the oysters. Through this optimization, we not only significantly improve the safety of oyster transportation but also ensure that the oysters maintain their optimal quality when they reach consumers.

[0038] refer to Figures 6-7 The automatic screening device includes a discharge trough 4.5 located at the bottom of the frame b4.1, with the discharge port at the lower end of the discharge trough 4.5. Above the discharge trough 4.5 are three layers of inclined vibrating screens, from top to bottom: vibrating screen a4.8, vibrating screen b4.9, and vibrating screen c4.10. The apertures of the three screens are 60mm, 50mm, and 40mm respectively. The lower outlets of the three vibrating screens are connected to guide troughs a4.11, b4.12, and the discharge trough 4.5, respectively. The vibrating screens are located on a vibrating frame 4.3. Mounting plates 4.13 are provided on both sides of the frame. The vibrating motor 4.4 is fixed on the mounting plates 4.13. The top of the frame b4.1 is provided with an end plate 4.7. A guide post a is fixed on the end plate 4.7. The bottom end of the spring 4.2 is sleeved on the guide post a and fixed to the end plate 4.7. The top end of the spring 4.2 is connected to the corner joint 4.6. The corner joint 4.6 is connected to the vibrating frame 4.3. The spring 4.2 flexibly connects the vibrating frame 4.3 and the frame b4.1. Under the drive of the vibrating motor 4.4, the vibrating frame 4.3 and the vibrating screen can vibrate, thereby achieving the purpose of vibrating screening.

[0039] During screening, the first feeding device transports the oysters to the high position of the inclined vibrating screen a4.8. The vibrating motor 4.4 drives the vibrating screen to vibrate, and the vibrating screen a4.8 causes the oysters on it to vibrate. As the oysters vibrate, they move towards the lower end of the vibrating screen a4.8. Oysters smaller than 60mm fall onto the vibrating screen b4.9 below, while oysters of 60mm or larger are screened out and enter the guide chute a4.11. The guide chute a4.11 is inclined, and the oysters on it slide towards the lower end under gravity for collection in the next process. Similarly, the vibrating screen b4.9 screens oysters of 50mm or larger, and the vibrating screen c4.10 screens oysters of 40mm or larger. The screened oysters are classified by size for cultivation. Oysters smaller than 40mm are collected after passing through the discharge chute and released into the sea to grow on their own.

[0040] This invention utilizes highly efficient vibrating screening technology to process oysters. As a highly coordinated production line, all stages work closely together, with the screening process synchronized with manual crushing operations. The vibrating screening stage can keep pace with the manual crushing speed, effectively preventing material accumulation and ensuring that the screening effect is not affected, thus guaranteeing efficient oyster processing.

[0041] Specifically, the finished product conveyor belt 1.2 and the first inclined conveyor belt 2 operate at a speed of 10 m / min. Each oyster is processed in 10 seconds, during which the conveyor belt travels a distance of approximately 1.67 m, while the distance between adjacent workstations is 1 m. This means that the distance the conveyor belt travels in 10 seconds is much greater than the distance between adjacent workstations, ensuring that the processed oysters leave the workstation quickly during the conveying process and preventing them from accumulating on the conveyor line.

[0042] The vibrating motor operates at a speed of 1000 rpm, meaning it vibrates 167 times every 10 seconds. The vibrating screen uses a vertical vibration mode with an amplitude of 10mm. With each vibration, the material jumps 10mm across the screen surface, accumulating a longitudinal displacement of 1.67m within 10 seconds, synchronized with the conveyor belt speed. This synchronization ensures that the material's movement speed on the vibrating screen matches that of the conveyor belt, preventing stacking due to speed differences.

[0043] The vibrating screen is designed with a length of 1.5m and a screen surface inclination angle of 15°, ensuring a precise match between the oyster's residence time on the screen and the screening requirements. High-frequency vibration causes the material to disperse rapidly and slide evenly down the screen surface, while the inclined screen surface further utilizes gravity to assist the flow. Simultaneously, the vibrating screen's three-layer mesh gradient design ensures that oysters of different sizes are screened step-by-step, with smaller oysters that do not meet the standards being directly collected through the bottom discharge chute (4.5m).

[0044] In summary, through the coordinated design of vibration parameters, conveying speed, and mechanical structure, the screening device can maintain the dynamic balance of materials during continuous operation, effectively prevent squeezing and overlapping, ensure screening efficiency, and eliminate the need for additional material feeding devices.

[0045] refer to Figure 1 The second feeding device is inclined, with the lower end being the feeding end and the higher end being the discharging end. The second feeding device includes a second inclined conveyor belt a5.1, a second inclined conveyor belt b5.2, and a second inclined conveyor belt c5.3. The feeding end of the second inclined conveyor belt a5.1 is located below the outlet of the guide chute a4.11, the feeding end of the second inclined conveyor belt b5.2 is located below the guide chute b4.12, and the second inclined conveyor belt c5.3 is located below the guide chute c.

[0046] Preferably, there are three hoppers 3.3, which are located below the discharge ends of the second inclined conveyor belt a5.1, the second inclined conveyor belt b5.2, and the second inclined conveyor belt c5.3, respectively.

[0047] Example 2

[0048] The workflow of this utility model is further explained below with reference to the various devices:

[0049] The oysters to be processed are conveyed in a ring by an upper feeding belt 1.1 to the vicinity of each processing workbench 1.4. Workers take the oysters from the belt and break them up. The processed finished products fall into the finished product conveyor belt 1.2 through the finished product discharge port and the finished product discharge pipe 1.5. Waste materials fall into the waste material conveyor belts 1.3 on both sides through the waste material discharge port and the waste material discharge pipe 1.6. The finished products and waste materials are strictly separated during the conveying process by the middle partition 1.9 and the side baffles 1.10. The waste materials are finally collected in the waste collection box, and the finished products are transported to the first inclined conveyor belt 2 via the finished product conveyor belt 1.2.

[0050] The first inclined conveyor belt 2 transports the finished product to the automatic screening device. The screening device contains three layers of vibrating screens: vibrating screen a4.8, vibrating screen b4.9, and vibrating screen c4.10. The screen aperture decreases from top to bottom. A vibrating motor 4.4 drives the screens to vibrate at high frequency. Under the combined action of vibration and screen inclination, the oysters are evenly dispersed and move towards the lower end. Oysters of incorrect size fall layer by layer into the corresponding guide trough and discharge trough 4.5, and are then transported to three independent hoppers 3.3 via the second inclined conveyor belts a5.1, b5.2, and c5.3, respectively.

[0051] Oysters in hopper 3.3 are conveyed to receiving hopper 3.8 via a screw conveyor. Weighing sensor 3.9 monitors the weight in the receiving hopper in real time. When the preset value is reached, the controller pauses the screw conveyor and activates cylinder 3.11 to open sliding baffle 3.10, allowing the oysters to fall into the packaging bag below. After bagging, sliding baffle 3.10 closes, and the screw conveyor resumes operation for the next weighing cycle. During this process, the front-end screening and conveying processes continue operating. Screened oysters enter the screw conveyor through hopper 3.3. When the screw conveyor pauses, the oysters fall into the hopper and accumulate there. Sensors are installed on the upper part of the hopper; when the material reaches the sensor level, an alarm is triggered to notify personnel to weigh and package the oysters promptly, preventing material overflow and ensuring continuous and efficient operation of the production line, avoiding material accumulation due to weighing pauses.

[0052] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An oyster processing line, characterised in that, The application relates to a processing auxiliary conveying device, an automatic screening device and a weighing and boxing device, wherein a first feeding device is arranged between the processing auxiliary conveying device and the automatic screening device, and a second feeding device is arranged between the automatic screening device and the weighing and boxing device. The processing auxiliary conveying device comprises an upper layer feeding belt (1.1) and a lower layer conveying belt which are arranged in a vertical mode and are driven by a motor, the lower layer conveying belt comprises a finished product conveying belt (1.2) and a waste conveying belt (1.3), a plurality of processing workbenches (1.4) are arranged on the side of the upper layer feeding belt (1.1), the processing workbenches (1.4) are provided with finished product feeding openings and waste feeding openings, the finished product feeding openings are communicated with finished product discharge pipes (1.5), the outlet of the finished product discharge pipes (1.5) is located above the finished product conveying belt (1.2), the waste feeding openings are communicated with waste discharge pipes (1.6), and the outlet of the waste discharge pipes (1.6) is located above the waste conveying belt (1.3).

2. The oyster processing line of claim 1, wherein, The waste conveying belt (1.3) is symmetrically arranged on the two sides of the finished product conveying belt (1.2), the outlet end of the waste conveying belt (1.3) is located above the waste discharge belt, and the two sides of the waste conveying belt are respectively provided with an intermediate partition plate (1.9) and a side partition plate (1.10).

3. The oyster processing line of claim 1, wherein, The outlet end of the finished product conveying belt (1.2) is located above the first feeding device, the first feeding device is a first climbing conveying belt (2) which is arranged in an inclined mode, and the outlet end of the waste conveying belt (1.3) is located at the low end of the first climbing conveying belt (2).

4. The oyster processing line of claim 1, wherein, The upper layer feeding belt (1.1) and the lower layer conveying belt are located on a supporting frame (1.7), and the bottom of the supporting leg of the supporting frame (1.7) is provided with a wheel (1.8).

5. The oyster processing line of claim 1, wherein, The weighing and boxing device comprises an upper feeding pipe (3.2) which is arranged on a frame body a (3.1) in an inclined mode, the outlet of a material bin (3.3) is communicated with the low end of the upper feeding pipe (3.2), the inlet of the material bin (3.3) is located below the outlet end of the second feeding device, the high end of the upper feeding pipe (3.2) is provided with a servo motor (3.4) which is used for driving the rotation of a rotating shaft (3.5), the rotating shaft (3.5) penetrates and is rotationally connected with the upper feeding pipe (3.2), the upper feeding pipe (3.2) is provided with helical conveying blades (3.6) which are located on the outer periphery of the rotating shaft (3.5), the top of the upper feeding pipe (3.2) is provided with a discharge port (3.7), the discharge port (3.7) is provided below with a receiving bin (3.8) which is located on the frame body a (3.1), a weighing sensor (3.9) is arranged between the receiving bin (3.8) and the frame body a (3.1), the weighing sensor (3.9) is connected with a controller, the bottom outlet of the receiving bin (3.8) is provided with a sliding baffle (3.10), the sliding baffle (3.10) is connected with a cylinder (3.11), and the controller controls the cylinder (3.11) and the servo motor (3.4).

6. The oyster processing line of claim 5, wherein, The servo motor (3.4) is connected to a speed reducer (3.12), the speed reducer (3.12) is connected to a rotating shaft (3.5) through a shaft coupling (3.13); the rotating shaft (3.5) is rotatably connected to the two ends of a feeding pipe (3.2) through bearings, the two ends of the feeding pipe (3.2) are provided with bearing seats (3.14), and the bearings are located on the bearing seats (3.14); the sliding baffle (3.10) is obliquely arranged at the bottom of a receiving bin (3.8), and a gas cylinder (3.11) is obliquely fixed on a frame body a (3.1) through a gas cylinder seat.

7. The oyster processing line of claim 5, wherein, The automatic screening device comprises a discharge chute (4.5) arranged at the bottom of a frame body b (4.1), a plurality of layers of obliquely arranged vibrating screens are arranged above the discharge chute (4.5), the mesh of the vibrating screens decreases from the upper layer to the lower layer, and the lower end of the vibrating screen is connected to a material guiding device; the vibrating screen is located on a vibrating frame (4.3), the vibrating frame (4.3) is provided with a vibrating motor (4.4), and the vibrating frame (4.3) is arranged on the frame body b (4.1) through springs (4.2).

8. The oyster processing line of claim 7, wherein, The discharge chute (4.5) is obliquely arranged, and a discharge port is located at the lower end of the discharge chute (4.5); an end plate (4.7) is arranged at the top end of the frame body b (4.1), a guide column a is fixed on the end plate (4.7), the bottom end of the spring (4.2) is sleeved on the guide column a and fixed with the end plate (4.7), the top end of the spring (4.2) is connected to a corner joint (4.6), the corner joint (4.6) is connected to the vibrating frame (4.3); the vibrating screen has three layers, and the vibrating screen a (4.8), the vibrating screen b (4.9) and the vibrating screen c (4.10) are arranged from top to bottom; the material guiding device is an obliquely arranged material guiding groove, and the material guiding groove comprises a material guiding groove a (4.11), a material guiding groove b (4.12) and a material guiding groove c connected to the vibrating screen a (4.8), the vibrating screen b (4.9) and the vibrating screen c (4.10) respectively; the vibrating frame (4.3) is provided with mounting plates (4.13) on both sides, and the vibrating motor (4.4) is fixed on the mounting plates (4.13).

9. The oyster processing line of claim 8, wherein, The second feeding device is obliquely arranged, the lower end is the feeding end, and the upper end is the discharging end; the second feeding device comprises a second climbing conveyor belt a (5.1), a second climbing conveyor belt b (5.2) and a second climbing conveyor belt c (5.3), the feeding end of the second climbing conveyor belt a (5.1) is located below the outlet of the material guiding groove a (4.11), the feeding end of the second climbing conveyor belt b (5.2) is located below the material guiding groove b (4.12), and the second climbing conveyor belt c (5.3) is located below the material guiding groove c.

10. The oyster processing line of claim 9, wherein, The hopper (3.3) has three, and the three hopper (3.3) are located below the discharge end of the second climbing conveyor belt a (5.1), the second climbing conveyor belt b (5.2) and the second climbing conveyor belt c (5.3).

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