A real-time online cottonseed weighing system

Abstract

The invention discloses a real-time online cottonseed weighing system, which belongs to the technical field of cottonseed processing. The system comprises a conveyor belt, a controller, a weighing device and a data acquisition unit. The inner cavity of the weighing device is divided into a double hopper structure connected in the vertical direction by a first flap mechanism and a second flap mechanism, wherein the hopper located at the top is a feed bin, the first flap mechanism serves as the bottom plate of the feed bin, the hopper located at the bottom is a weighing bin, the second flap mechanism serves as the bottom plate of the feed bin and the entire weighing device. Through the design of the double hopper structure, the feeding, weighing and discharging processes can be made without human intervention, and the cottonseed material weighing link does not need to be interrupted, which significantly improves the production efficiency; the data acquisition unit comprises a weighing sensor and a material level sensor, and the combination of the weighing sensor and the material level sensor can not only quickly obtain the amount of cottonseed material in the weighing bin, but also verify the accuracy and performance of the weighing sensor, which is conducive to precise supervision.

Description

Technical Field

[0001] The invention belongs to the technical field of cottonseed processing, and in particular relates to a real-time online cottonseed weighing system. Background Art

[0002] With the continuous improvement of my country's agricultural mechanization level, the demand for precise measurement in agricultural production has become increasingly prominent. In the cottonseed processing industry, cottonseed weighing, as a key link, has a vital impact on the entire cottonseed production process. And in order to meet the development needs of agricultural modernization, cottonseed weighing technology is also constantly developing in the direction of intelligence and precision. With the advancement of science and technology, advanced computer and automatic control technology, sensor technology, etc. are gradually applied to the field of cottonseed weighing. The development of a cottonseed dynamic metering system has become an important way to solve the technical problems in the cottonseed processing industry.

[0003] In the field of cottonseed processing, the traditional static weighing method is generally used in the cottonseed weighing process, which will cause interruptions in the processing flow and greatly limit the improvement of production efficiency. In addition, the weighing equipment needs to be reset to zero every time static weighing is performed, which further increases the complexity and time cost of the operation. Some companies have tried to use dual-hopper dynamic weighing technology, but the transformation of such equipment is not only costly, but also has limitations in weighing accuracy. Summary of the invention

[0004] The present invention provides a real-time online cottonseed weighing system. The system combines advanced automatic control technology and sensor technology to develop a set of cottonseed dynamic metering equipment, aiming to solve the technical problems mentioned in the background technology that have long plagued the cottonseed processing industry, change the backward status of the cottonseed processing production management model, and thus significantly improve production efficiency and supervision level.

[0005] The present application provides a real-time online cottonseed weighing system, comprising a conveyor belt and a controller, and also comprising a weighing device and a data acquisition unit, wherein the weighing device is located directly below the conveying end of the conveyor belt, and a first flap mechanism and a second flap mechanism are arranged in the weighing device in an upper and lower position and divide the inner cavity of the weighing device into a double hopper structure of a feed bin and a weighing bin; the data acquisition unit communicates with the controller, and the data acquisition unit at least comprises a weighing sensor and a material level sensor, wherein the weighing sensor is arranged at the bottom of the weighing device or the weighing bin, and the material level sensor is arranged at the upper limit of the material level of the weighing bin, and the controller can generate a command signal for controlling the action of the first flap mechanism and the second flap mechanism and an action command signal for controlling the action of the transmission belt according to the signals collected by the weighing sensor and the material level sensor.

[0006] As a preferred solution of the present application: the first flap mechanism and the second flap mechanism both include a flap and a driving unit, one end of the flap is hinged to the inner wall of the weighing device through a rotating shaft, and the other end is a free end, and the driving unit communicates with the controller. The driving unit can drive the corresponding flap to swing and flip in the vertical direction according to the command signal of the controller.

[0007] As a preferred solution of the present application: the driving unit includes a driving motor and a transmission chain, the transmission chain is arranged between the driving motor and the rotating shaft, and the driving motor drives the flap to swing and flip through the transmission chain.

[0008] As a preferred solution of the present application: the flaps include two symmetrically arranged flaps, the two flaps are respectively hinged to the inner wall of the weighing device via a rotating shaft, and at least one of the two flaps can be driven to flip by the driving unit.

[0009] As a preferred solution of the present application: the data acquisition unit also includes a flow sensor, which is arranged at the entrance of the feed bin. The controller can adjust the running speed of the conveyor belt according to the flow signal collected by the flow sensor to control the feeding speed. At the same time, the controller can also trigger the weighing sensor to start and return to zero according to the initial flow signal collected by the flow sensor.

[0010] As a preferred solution of the present application: the data acquisition unit is connected to the controller via two transistors in RS485 bus mode to avoid conflicts when multiple data acquisition units communicate with the controller.

[0011] As a preferred solution of the present application: the weighing sensor adopts at least two strain type weighing sensors, and the two strain type weighing sensors are evenly arranged at the bottom of the weighing device.

[0012] As a preferred solution of the present application: the material level sensor is a photoelectric sensor.

[0013] As a preferred solution of the present application: it also includes a stacking mechanism, which is arranged at a corresponding position of the outlet of the weighing device, and at least includes a base, a mechanical arm and a grasping mechanism, the mechanical arm is installed on the base, and the grasping mechanism is arranged at the far end of the mechanical arm.

[0014] As a preferred solution of the present application: the gripping mechanism adopts a pneumatic clamp or an electromagnetic suction cup.

[0015] Compared with the prior art, the advantages of the present invention include: In this scheme, the inner cavity of the weighing device is divided into a double hopper structure connected in the vertical direction by a first flap mechanism and a second flap mechanism, wherein the hopper located at the top is a feed bin, the first flap mechanism serves as the bottom plate of the feed bin, the hopper located at the bottom is a weighing bin, and the second flap mechanism serves as the bottom plate of the feed bin and the entire weighing device. Through the design of the double hopper structure, the feeding, weighing and discharging processes can be made without human intervention, and the cottonseed material weighing link does not need to be interrupted. At the same time, the occurrence of cottonseed material scattering outside is avoided, which significantly improves production efficiency; the data acquisition unit includes a weighing sensor and a material level sensor. The combination of the weighing sensor and the material level sensor can not only quickly obtain the amount of cottonseed material in the weighing bin, but also verify the accuracy and performance of the weighing sensor, which is conducive to precise supervision; in summary, this scheme adopts a double hopper and cooperates with a controller and a data acquisition unit, which, on the one hand, realizes the combination of automatic control technology and sensor technology, and on the other hand, realizes the uninterrupted operation of the cottonseed material weighing link, which significantly improves production efficiency and supervision level. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a control principle diagram of the real-time online cottonseed weighing system provided in this embodiment.

[0017] Figure 2 This is a schematic diagram of the structure of the real-time online cottonseed weighing system provided in this embodiment.

[0018] Figure 3 This is a schematic structural diagram of the palletizing mechanism provided in this embodiment.

[0019] Figure 4 This is a schematic structural diagram of the palletizing mechanism provided in this embodiment. Figure 5 This is a schematic diagram of the connection interface between the data acquisition unit and the controller provided in this embodiment. Reference numerals

[0020] 100 is a weighing device; 10 is a rotating shaft; 11 is a feed bin; 12 is a weighing bin; 13 is a first flap mechanism; 14 is a second flap mechanism; 134 is a flap; 15 is a weighing sensor; 16 is a material level sensor; 17 is a flow sensor; 18 is a driving unit; 19 is a transmission chain; 200 is a conveyor belt; 300 is a stacking mechanism; 31 is a base; 32 is a robotic arm; 33 is a grabbing mechanism; 34 is a guide column. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with specific implementations and with reference to the accompanying drawings. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope of the present invention and its application.

[0022] The present embodiment provides a real-time online cotton seed weighing system, which includes a conveyor belt 200, a controller, a weighing device 100 and a data acquisition unit. The weighing device 100 is a columnar structure with upper and lower openings, which can be a prism structure or a cylindrical structure. The weighing device 100 is located below the end of the conveyor belt 200 to receive the cotton seed material conveyed by the transmission belt. A first flap mechanism 13 and a second flap mechanism 14 are provided in the weighing device 100. Figure 2 As shown, the first flap mechanism 13 and the second flap mechanism 14 are respectively arranged at a position near the upper end and a position near the lower end of the weighing device 100, and the inner cavity of the weighing device 100 is divided into a double hopper structure of a feed bin 11 and a weighing bin 12. Preferably, the height of the feed bin 11 is smaller than that of the weighing bin 12. Specifically, the first flap mechanism 13 is the bottom plate of the feed bin 11, which is used to close the bottom of the feed bin 11 and thereby isolate the feed bin 11 from the weighing bin 12. 14 is the bottom plate of the weighing bin 12, which closes the bottom of the weighing bin 12 for weighing operation. As the name implies, the first flap mechanism 13 and the second flap mechanism 14 are flippable structures, and when flipped to a certain angle, the bottom plates of the corresponding bins can be opened. It can be understood that the flipping state of the first flap mechanism 13 determines whether the feed bin 11 and the weighing bin 12 are connected, and the flipping state of the second flap mechanism 14 determines whether the weighing bin 12 is in the cotton seed material weighing state or not. It is a unloading state. In this embodiment, the feed bin 11 is docked with the conveyor belt 200 to receive the cottonseed material transported by the transmission belt 200. The main purpose is to avoid the cottonseed material from splashing to the outside during the falling process. At the same time, the first flap mechanism 13 reduces the occupation of the volume of the symmetrical bin 12 to ensure that the volume of the weighing bin 12 meets the actual needs; the data acquisition unit communicates with the controller, and the data acquisition unit at least includes a weighing sensor 15 and a level sensor 16. The weighing sensor 15 is arranged at the weighing bin 12 or the bottom of the weighing bin 12 to sense the weight of the cottonseed material in the weighing bin. The level sensor 16 is arranged at the upper limit of the material level of the weighing bin 12 to sense whether the amount of cottonseed material rises to the upper limit of the material level. The controller can generate a command signal for controlling the action of the first flap mechanism 13 and the second flap mechanism 14 and an action command signal for controlling the action of the transmission belt according to the signals collected by the weighing sensor 15 and the level sensor 16, such as Figure 1As shown; it can be understood that the command signal can be a status indication signal or an action command signal, which is specifically determined according to the flipping method of the flap 134 mechanism. Specifically, when the first flap mechanism 13 and the second flap mechanism 14 are both flipped by the controller, the command signal is an action command signal, which directly controls the corresponding driver to drive the first flip mechanism or the second flip mechanism to open or close. When the first flip mechanism 13 and the second flip mechanism 14 are manually controlled, the command signal is a status indication signal to control the indication unit to display the corresponding indication information, and the staff manually controls the first flip mechanism or the second flip mechanism to open or close according to the indication information. The present embodiment is preferably the former, that is, the first flip mechanism 13 and the second flip mechanism 14 are both reversed by the controller. This saves manpower and can achieve timely and accurate control.

[0023] The sensing signal of the material level sensor 16 serves as a trigger signal for the weighing sensor 15 to obtain weight data, that is, the controller controls the weighing sensor 15 to start measuring according to the sensing signal transmitted by the material level sensor 16. This can not only improve the measuring efficiency, but also realize the intelligence of the measuring process without human participation or interruption. In addition, when the material level sensor 16 is triggered, but the weight data collected by the weighing sensor 15 deviates from the preset range value, it means that the weighing sensor 15 is abnormal, thereby realizing the calibration and performance detection of the weighing sensor 15.

[0024] The weighing sensor 15 is arranged at the bottom of the weighing device 100, or the bottom of the weighing silo 12. When it is arranged at the bottom of the weighing device 100, the weight signal collected by the weighing sensor 15 is the sum of the weight of the cottonseed material and the weight of the entire weighing device 100. When it is arranged at the bottom of the weighing silo 12, for example, on the second flap mechanism 14, the weight signal collected by the weighing sensor 15 is the weight of the cottonseed material. The specific weight can be determined according to actual needs and the difficulty of actual installation. In this embodiment, the weighing sensor 15 is preferably arranged at the bottom of the weighing device 100. It can be understood that in order to facilitate the calculation of the actual weight of the cottonseed material in the weighing silo 12, the overall weight parameters of the weighing device 100 can be pre-written in the controller, or, when the weighing operation is implemented, the weighing sensor 15 automatically obtains and stores the overall weight of the weighing device 100 in an unloaded state.

[0025] In this embodiment, the weighing sensor 15 uses at least two strain type weighing sensors 15, and the two strain type weighing sensors 15 are evenly arranged at the bottom of the weighing device 100; the strain type weighing sensor 15 can be customized and adjusted according to actual needs to adapt to the measurement of cotton seeds in different weight ranges.

[0026] The material level sensor 16 is a photoelectric sensor. In this embodiment, compared with other types of sensors, the photoelectric sensor has the characteristics of fast response speed and high precision; it can detect the changes of cotton seeds in the hopper in an instant and send out signals in time to ensure that the system can respond quickly.

[0027] The specific models of the weighing sensor 15 and the material level sensor 16 can be designed according to actual production needs, and are not specifically limited in this embodiment.

[0028] The first flap mechanism 13 and the second flap mechanism 14 both include a flap 134 and a drive unit 18. One end of the flap 134 is hinged to the inner wall of the weighing device 100 through the rotating shaft 10, and the other end is a free end. It can be understood that the shape of the flap 134 is determined according to the inner cavity structure of the weighing device 100. In this embodiment, the inner cavity of the weighing device 100 is preferably a cylindrical structure. The cylindrical design is more regular, so that the cottonseed material can flow more smoothly and evenly during feeding and discharging, avoiding local accumulation. Therefore, the flap 134 is a circular plate structure adapted to the inner cavity of the weighing device 100; the drive unit 18 communicates with the controller, and the drive unit 18 can drive the corresponding flap 134 to swing and flip in the vertical direction according to the command signal of the controller to realize the feeding and unloading operations; it can be understood that in order not to occupy the space of the feeding bin 11 and the weighing bin 12, the drive unit 18 is arranged outside the weighing device 100, and the rotating shaft 10 extends through the weighing device 100 to the outside and is connected to the drive unit 18, such as Figure 2 shown.

[0029] The driving unit 18 includes a driving motor and a transmission chain 19. The driving motor is preferably a servo motor. Specifically, sprockets are respectively arranged on the drive shaft of the driving motor and the rotating shaft 10. The transmission chain 19 is arranged between the driving motor and the rotating shaft 10 and is sleeved with the corresponding sprocket. When the servo motor rotates, the sprocket on the rotating shaft 10 is driven to rotate by the transmission chain 19, so that the flap 134 rotates around the rotating shaft 10 to realize the flipping action; the sprocket of the servo motor and the sprocket of the flap 134 form a V-shaped angle, and this structure can be reasonably arranged without taking up too much space; the V-shaped structure enables the transmission chain 19 to transmit force at a more reasonable angle during the transmission process; when the output force of the servo motor acts on the rotating shaft 10 of the flap 134 through the transmission chain 19, the V-shaped arrangement can reduce force loss and distortion, and improve force transmission efficiency.

[0030] The servo motor is an AC servo motor, which has the characteristics of fast response speed and high precision; it can control the flap 134 to rotate a specified angle with a very small error, ensuring that the cotton seeds fall accurately and evenly into the weighing bin, thereby obtaining accurate weight data.

[0031] The flap 134 includes two symmetrically arranged, that is, the flap 134 includes two symmetrical semicircular plates. The two flaps 134 are respectively hinged to the inner wall of the weighing device 100 through the rotating shaft 10. At least one of the two flaps 134 can be driven to flip by the driving unit 18. In this embodiment, the two flaps 134 are preferably driven by the same driving unit 18. This saves the use cost of the driving unit 18 on the one hand, and increases the flip opening on the other hand to ensure that the cottonseed material enters or is unloaded at the required speed.

[0032] The data acquisition unit also includes a flow sensor 17, which is arranged at the entrance of the feed bin 11. The controller can adjust the running speed of the conveyor belt 200 according to the flow signal collected by the flow sensor 17 to control the feeding speed, so as to avoid the problem that the feeding amount in the weighing bin 12 cannot be accurately controlled due to excessive feeding amount. At the same time, the controller can also trigger the weighing sensor 15 to start and return to zero according to the initial flow signal collected by the flow sensor 17. The automatic zeroing of the weighing sensor 15 can improve the accuracy and efficiency of weighing. It can be understood that before feeding, the initial signal collected by the weighing sensor 15 is the weight of the weighing device 100. After automatic zeroing, the signal obtained again will be the sum of the weight of the weighing sensor and the weight of the material in the weighing bin 12. Finally, the difference method can be used to obtain the net weight of the cottonseed material in the weighing bin 12. In this embodiment, the flow sensor 17 is an electromagnetic flow sensor 17, which can accurately measure the flow of cotton seeds.

[0033] The data acquisition units are connected to the controller via RS485 bus. Figure 5 As shown, specifically, each sensor constituting the data acquisition unit is connected to the controller via two transistors Q2 (2N5401) and Q3 (2N5551) in the RS485 bus mode to avoid conflicts when the sensors communicate with the controller.

[0034] Through the two transistors Q2 (2N5401) and Q3 (2N5551), it is determined whether to enable RS485 communication based on other signals in the circuit; in this way, the RS485 communication can be flexibly turned on and off to avoid conflicts when the weighing sensor (DYX-366), flow sensor (HMC240), and level sensor (SE290) communicate with the controller through 485; this design can ensure that each device has an independent channel during communication and will not interfere with each other, thereby ensuring the stability and reliability of communication.

[0035] The stacking mechanism 300 is also included. The stacking mechanism 300 is arranged at a corresponding position of the outlet of the weighing device 100 to transfer the cotton seed material packaged at the outlet of the weighing device 100 to a designated position, such as Figure 5As shown, it is a structural schematic diagram of a palletizer provided in the present embodiment, the palletizer at least comprises a base 31, a mechanical arm 32 and a grabbing mechanism 33, a guide is installed on the base 31, the mechanical arm 32 is slidably matched with the guide column 34, the grabbing mechanism 33 is arranged at the far end of the mechanical arm 32, and the grabbing mechanism 33 adopts a pneumatic clamp or an electromagnetic suction cup; the mechanical arm 32 of the palletizer of the structure in the present embodiment can move in the vertical direction relative to the guide column 34, and at the same time, it itself is a telescopic rod that can move in the horizontal direction, thereby realizing the cottonseed palletizing operation; it can be understood that the guide column 34 is a slide rail, on which a driving member is provided, and the driving member drives the mechanical arm 32 to move in the vertical direction, and the driving member can be an electric telescopic push rod or a driving mechanism composed of a motor and a screw rod; the above is a preferred structure of a palletizer in the present embodiment, and palletizers of other structures that can achieve the purpose of the present embodiment in the prior art also belong to the protection scope of the present embodiment.

[0036] In order to further understand this solution, the following is a detailed description of the operating principle of this system: When the system starts, it will first perform initialization operations, including initialization of hardware devices (weighing sensor 15, real-time clock, etc.) and control of LED indication status; the servo motor drives each flap 134 to reset, preparing for subsequent weighing operations; after communicating with the 4GDTU communication module, if the received message contains the "date" field, that is, the remote monitoring server time information, the system will use this time to synchronize the real-time clock component of the controller to ensure the accuracy of the system time.

[0037] During the weighing operation, the data acquisition unit, controller and conveyor belt 200 in the system are started (at this time, the weighing sensor 15 performs a weighing to obtain the overall weight of the weighing device 100 in the empty state, that is, the empty weight), and the conveyor belt 200 transmits the cotton seed material to the weighing device 100 end. During the feeding process of the cotton seed material, when the flow sensor 17 senses that cotton seeds have entered the feed bin 11, the controller triggers the weighing sensor 15 according to the flow signal to save the weighing data (in the air) and return to zero. At the same time, the flap 134 of the first flap mechanism 13 is opened to connect the feed bin 11 and the weighing bin 12, so that the cotton seed material enters the weighing bin 12 through the feed bin 11, and the flap 134 of the second flap mechanism 14 is kept in the reset state to wait for weighing; when the material level sensor 16 detects that the amount of cotton seeds that have fallen reaches the preset upper limit height of the full material, the material level sensor 16 transmits the data to the controller, and the controller then controls The servo motor drives the transmission chain 19 to reset the flap 134 (referred to as the upper flap) on the first flap mechanism 13 to prevent excess cotton seeds from entering the weighing hopper. At the same time, the conveyor belt 200 is controlled to stop the transmission of the cotton seed material. After that, the controller controls the weighing sensor 15 to obtain weight data again. The weight data at this time is the weight of the cotton seeds and the entire weighing device 100, which is defined as the full weight. After obtaining the weight data of the two weighings, the net weight of the cotton seeds can be calculated, that is, the full weight minus the empty weight, and the weighing data and other information can be reported to the remote monitoring server through the RS485 serial port. At the same time, the weighing data, time information, warehouse information and other important data are stored in the local SD card for subsequent query and analysis. Then, the controller controls the servo motor to cause the flap 134 (referred to as the lower flap) of the second flap mechanism 14 to flip downward through the transmission chain 19 for unloading, and controls the flap 134 to reset after unloading is completed. Finally, the stacker packs and stacks the cotton seeds at the bottom of the weighing device; by comparing the two weighing results, the weight value of the cotton seeds weighed this time can be accurately obtained.

[0038] In summary, the present solution, through the design of the double hopper structure, can make the feeding, weighing and discharging processes without human intervention, and the cottonseed material weighing link does not need to be interrupted. At the same time, it also avoids the occurrence of cottonseed material scattering outside, which significantly improves production efficiency; the data acquisition unit includes a weighing sensor 15 and a material level sensor 16. The combination of the weighing sensor 15 and the material level sensor 16 can not only quickly obtain the amount of cottonseed material in the weighing bin 12, but also verify the accuracy and performance of the weighing sensor 15, which is conducive to precise supervision; in summary, the present solution adopts a double hopper and cooperates with a controller and a data acquisition unit. On the one hand, it realizes the combination of automatic control technology and sensor technology, and on the other hand, it realizes the uninterrupted operation of the cottonseed material weighing link, which significantly improves production efficiency and supervision level.

[0039] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several improvements can be made without departing from the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of the claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A real-time online cottonseed weighing system, comprising a conveyor belt and a controller, characterized in that: It also includes a weighing device and a data acquisition unit, wherein the weighing device is located directly below the conveying end of the conveyor belt, and a first flap mechanism and a second flap mechanism are provided in the weighing device, wherein the first flap mechanism and the second flap mechanism are arranged in an upper and lower position in the weighing device and divide the inner cavity of the weighing device into a double hopper structure of a feed bin and a weighing bin; the data acquisition unit communicates with the controller, and the data acquisition unit includes at least a weighing sensor and a material level sensor, wherein the weighing sensor is arranged at the bottom of the weighing device or the weighing bin, and the material level sensor is arranged at the upper limit of the material level of the weighing bin, and the controller can generate a command signal for controlling the action of the first flap mechanism and the second flap mechanism and an action command signal for controlling the action of the transmission belt according to the signals collected by the weighing sensor and the material level sensor.

2. The real-time online cottonseed weighing system according to claim 1, characterized in that: The first flap mechanism and the second flap mechanism both include a flap and a driving unit. One end of the flap is hinged to the inner wall of the weighing device through a rotating shaft, and the other end is a free end. The driving unit communicates with the controller and can drive the corresponding flap to swing and flip in the vertical direction according to the command signal of the controller.

3. The real-time online cottonseed weighing system according to claim 2, characterized in that: The driving unit comprises a driving motor and a transmission chain. The transmission chain is arranged between the driving motor and the rotating shaft. The driving motor drives the flap to swing and flip through the transmission chain.

4. The real-time online cottonseed weighing system according to claim 2, characterized in that: The flaps include two symmetrically arranged flaps, which are respectively hinged to the inner wall of the weighing device via a rotating shaft, and at least one of the two flaps can be driven to flip by the driving unit.

5. The real-time online cottonseed weighing system according to claim 1, characterized in that: The data acquisition unit also includes a flow sensor, which is arranged at the entrance of the feed bin. The controller can adjust the running speed of the conveyor belt according to the flow signal collected by the flow sensor to control the feeding speed. At the same time, the controller can also trigger the weighing sensor to start and return to zero according to the initial flow signal collected by the flow sensor.

6. The real-time online cottonseed weighing system according to claim 1, characterized in that: The data acquisition unit is connected to the controller via two transistors in RS485 bus mode to avoid conflicts when multiple data acquisition units communicate with the controller.

7. The real-time online cottonseed weighing system according to claim 1, characterized in that: The weighing sensor adopts at least two strain type weighing sensors, and the two strain type weighing sensors are evenly arranged at the bottom of the weighing device.

8. The real-time online cottonseed weighing system according to claim 1, characterized in that: The material level sensor is a photoelectric sensor.

9. The real-time online cottonseed weighing system according to claim 1, characterized in that: It also includes a stacking mechanism, which is arranged at a corresponding position of the outlet of the weighing device, and at least includes a base, a mechanical arm and a grasping mechanism. The mechanical arm is installed on the base, and the grasping mechanism is arranged at the far end of the mechanical arm.

10. The real-time online cottonseed weighing system according to claim 6, characterized in that: The grasping mechanism adopts a pneumatic clamp or an electromagnetic suction cup.

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