Material conveying control method and system for screw feeder

Abstract

The invention provides a screw feeder material conveying control method and system, and belongs to the technical field of screw feeder control, and the screw feeder material conveying control method comprises the steps that 1, the actual material quantity and conveying requirements are obtained, and a corresponding efficient motor is determined; 2, a level gage and a sensor are obtained according to the structure of the screw feeder, and the real-time material conveying state of the screw feeder is obtained according to the level gage and the sensor; 3, the conveying rate is adjusted based on a PID controller according to the conveying state, and factors influencing the rate are determined based on the use environment according to the adjusted conveying rate; and 4, the spiral conveying parts with different widths are replaced according to the factors influencing the speed, and the materials are conveyed according to the replaced spiral conveying parts. The problems that the state in the conveying process cannot be monitored in real time, the conveying rate cannot be adjusted based on a PID controller, material conveying cannot be stable and accurate, meanwhile, factors influencing the rate cannot be accurately obtained, and the reliability and stability of the system are greatly reduced are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of screw feeder control, and particularly to a method and system for controlling the material conveying of a screw feeder. Background Art

[0002] With the continuous improvement of the automation level of industrial production, the requirements for the intelligence and high efficiency of material conveying equipment are getting higher and higher. As a common material conveying equipment, the working efficiency and stability of a screw feeder directly affect the production efficiency and quality.

[0003] The existing methods for controlling the material conveying of a screw feeder cannot monitor the state during the conveying process in real time, resulting in the inability to adjust the conveying rate based on a PID controller, making the material conveying unable to be stable and accurate. At the same time, the factors affecting the rate cannot be accurately obtained, resulting in low conveying efficiency and greatly reducing the reliability and stability of the system.

[0004] Therefore, the present invention proposes a method and system for controlling the material conveying of a screw feeder. Summary of the Invention

[0005] The present invention provides a method and system for controlling the material conveying of a screw feeder to solve the defects in the prior art that the state during the conveying process cannot be monitored in real time, resulting in the inability to adjust the conveying rate based on a PID controller, making the material conveying unable to be stable and accurate. At the same time, the factors affecting the rate cannot be accurately obtained, resulting in low conveying efficiency and greatly reducing the reliability and stability of the system.

[0006] On the one hand, the present invention provides a method for controlling the material conveying of a screw feeder, including:

[0007] Step 1: Obtain the actual material quantity and production requirements, and determine the corresponding high-efficiency motor according to the actual material quantity and production requirements;

[0008] Step 2: Obtain a level gauge and sensors according to the structure of the screw feeder, and obtain the real-time conveying state of the screw feeder for the material according to the level gauge and sensors;

[0009] Step 3: Adjust the conveying rate based on a PID controller according to the conveying state, and determine the factors affecting the rate based on the use environment according to the adjusted conveying rate;

[0010] Step 4: Replace the screw conveying part with different widths according to the factors affecting the rate, and convey the material according to the replaced screw conveying part to realize the control of the material conveying of the screw feeder.

[0011] A method for controlling the material conveying of a screw feeder provided by the present invention, which obtains the actual material quantity and conveying requirements, and determines the corresponding high-efficiency motor according to the actual material quantity and conveying requirements, includes:

[0012] Obtain the usage parameters and consumption speed of the target material, and determine the actual material quantity based on the inventory level according to the usage parameters and consumption speed;

[0013] Obtain the conveying parameters and working environment, and determine the conveying requirements based on the conveying cycle according to the conveying parameters and working environment;

[0014] Determine the performance parameters of the motor according to the actual material quantity and production requirements, and determine the high-efficiency motor of the corresponding type and specification according to the performance parameters.

[0015] A method for controlling the material conveying of a screw feeder provided by the present invention, which obtains the level gauge and sensors according to the structure of the screw feeder, and obtains the real-time conveying state of the screw feeder for materials according to the level gauge and sensors, includes:

[0016] Obtain the working principle of the screw feeder, and determine the structure of the screw feeder according to the working principle;

[0017] According to the structure, obtain the parts where the level gauge and sensors need to be installed, and determine the installation positions and installation layouts according to the parts;

[0018] Obtain the level gauge and sensors based on the equipment compatibility according to the installation positions and installation layouts;

[0019] Measure the height and flow rate of the material according to the level gauge and sensors, and obtain the real-time conveying state of the screw feeder for materials according to the height and flow rate.

[0020] A method for controlling the material conveying of a screw feeder provided by the present invention, which determines the structure of the screw feeder according to the working principle, includes:

[0021] Determine the physical and chemical properties of the screw feeder material according to the working principle;

[0022] Determine the pressure and friction force parameters of the screw feeder during the material conveying process according to the physical and chemical properties;

[0023] Obtain the size and shape of the screw feeder parts, and determine the processing technology according to the size and shape;

[0024] Determine the spiral shape and equipment volume of the screw feeder according to the processing technology;

[0025] Determine the structure of the screw feeder according to the pressure and friction force parameters, spiral shape and equipment volume.

[0026] A method for controlling the material transportation of a screw feeder provided by the present invention adjusts the transportation rate based on a PID controller according to the transportation state, and determines the factors affecting the rate based on the adjusted transportation rate and the usage environment, including:

[0027] Collect the transportation state information according to the transportation state, and construct a mathematical model according to the transportation state information;

[0028] Obtain the dynamic characteristics of the transportation process based on the transfer function technology according to the mathematical model;

[0029] Obtain the characteristics and requirements of the transportation process according to the dynamic characteristics, and set the control parameters of the PID controller according to the characteristics and requirements;

[0030] Automatically adjust the control output based on the control parameters according to the transportation state information, and adjust the transportation rate according to the adjusted control output;

[0031] Obtain the environmental data related to the transportation process according to the usage environment, construct a transportation rate model according to the environmental data, and obtain the quantitative relationship between the transportation rate and the environmental factors according to the transportation rate model;

[0032] Determine the factors affecting the rate based on the quantitative relationship according to the adjusted transportation rate.

[0033] A method for controlling the material transportation of a screw feeder provided by the present invention further includes, before obtaining a level gauge and a sensor according to the structure of the screw feeder and obtaining the real-time transportation state of the material by the screw feeder according to the level gauge and the sensor:

[0034] Collect the static data and dynamic data during the material transmission process, and determine the transmission behavior mechanism according to the dynamic data, static data and their related mapping parameters;

[0035] Obtain the transmission logic of the transmission behavior mechanism, and determine the key timing monitoring parameters based on the transmission logic; <ocke the relevant decision variables according to the key timing monitoring parameters, and determine the relevant machine operation scheduling parameters, manpower allocation scheduling parameters and material-time scheduling parameters for the material transmission based on the relevant decision variables;

[0036]

[0037] Determine the scheduling conditions for the material transmission according to the relevant machine operation scheduling parameters, manpower allocation scheduling parameters and material-time scheduling parameters;

[0038] Determine the tightness level of the scheduling resources according to the scheduling conditions, and confirm whether it is necessary to optimize the scheduling parameters based on the tightness level of the scheduling resources;

[0039] If so, obtain the structural parameters of the transported material, conduct a rheological property test on the transported material based on the structural parameters, and obtain the test results;

[0040] Determine the constitutive equation of the rheological properties of the transported material according to the test results, and determine the state monitoring interval distance parameter of the transported material according to the constitutive equation of the rheological properties and the transportation requirements;

[0041] Adaptively optimize the manpower allocation and scheduling parameters and the relevant machine operation scheduling parameters according to the state monitoring distance parameter;

[0042] Determine the manpower configuration and the conveying capacity configuration parameters at the material conveying end according to the optimization results, and adaptively optimize the material-time scheduling parameters according to the manpower configuration and the conveying capacity configuration parameters;

[0043] Generate a material transportation plan through the optimized scheduling parameters, control the screw feeder to transport the material through the material transportation plan, and obtain the real-time conveying state of the screw feeder for the material according to the level meter and the sensor.

[0044] According to a method for controlling the material transportation of a screw feeder provided by the present invention, replace the screw conveying part with different widths according to the factors affecting the rate, and transport the material through the replaced screw conveying part to realize the control of the material transportation of the screw feeder, including:

[0045] Determine the influence degree of the screw conveying parts with different widths on the conveying speed according to the factors affecting the rate;

[0046] Replace the screw conveying part with different widths based on the nature of the material and the resistance during the transportation process according to the influence degree;

[0047] Transport the material through the replaced screw conveying part to realize the control of the material transportation of the screw feeder.

[0048] According to a material transportation control system of a screw feeder provided by the present invention, including:

[0049] Determination module: Obtain the actual material quantity and the production requirements, and determine the corresponding high-efficiency motor according to the actual material quantity and the production requirements;

[0050] Obtaining module: Obtain a level meter and a sensor according to the structure of the screw feeder, and obtain the real-time conveying state of the screw feeder for the material according to the level meter and the sensor;

[0051] Adjustment module: Adjust the conveying rate based on the PID controller according to the conveying state, and determine the factors affecting the rate based on the use environment according to the adjusted conveying rate;

[0052] Replacement module: Replace the screw conveyor part with different widths according to the factors affecting the rate, and convey the material according to the replaced screw conveyor part to realize the conveying control of the material of the screw feeder.

[0053] Compared with the prior art, the beneficial effects of the present application are as follows:

[0054] Obtain the real-time conveying state of the material by the screw feeder through the level gauge and the sensor, and adjust the conveying rate based on the PID controller to obtain the factors affecting the rate. Replace the screw conveyor part with different widths, which can monitor the state in real time during the conveying process, and adjust the conveying rate based on the PID controller to make the material conveying process stable and accurate. At the same time, accurately obtain the factors affecting the rate, improve the conveying efficiency, and greatly ensure the reliability and stability of the system. Description of the Drawings

[0055] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0056] Figure 1 It is a schematic flow chart of the method for controlling the material conveying of the screw feeder provided by the embodiment of the present invention;

[0057] Figure 2 It is a schematic structural diagram of the material conveying control system of the screw feeder provided by the embodiment of the present invention. Detailed Embodiments

[0058] To make the purpose, technical solutions and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions in the present invention with reference to the drawings in the present invention. Obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0059] Embodiment 1:

[0060] A method for controlling the material conveying of a screw feeder provided by an embodiment of the present invention, as Figure 1 shown, the method mainly includes the following steps:

[0061] Step 1: Obtain the actual material quantity and production requirements, and determine the corresponding high-efficiency motor according to the actual material quantity and production requirements;

[0062] Step 2: Obtain a level gauge and sensors according to the structure of the screw feeder, and obtain the real-time conveying state of the screw feeder for the material based on the level gauge and sensors;

[0063] Step 3: Adjust the conveying rate based on the PID controller according to the conveying state, and determine the factors affecting the rate based on the adjusted conveying rate and the use environment;

[0064] Step 4: Replace the screw conveying part with different widths according to the factors affecting the rate, and convey the material according to the replaced screw conveying part to achieve the conveying control of the material by the screw feeder.

[0065] In this embodiment, the screw feeder is a common material conveying device, mainly used to convey solid particles or lumps from the storage hopper to the designated position.

[0066] In this embodiment, the concept of the actual material quantity refers to the total quantity of all materials before conveying.

[0067] In this embodiment, the conveying requirement refers to the requirements for the transportation method and equipment of the material in the logistics process, such as: the conveying speed of the equipment.

[0068] In this embodiment, the high-efficiency motor is a motor that can improve the mechanical transmission efficiency, reduce energy consumption, and lower the operating cost.

[0069] In this embodiment, the structure of the screw feeder includes: a screw conveying cylinder, a feeding hopper, a discharging hopper, and a driving device.

[0070] In this embodiment, the level gauge is a device used to measure the position and quantity of materials in a container or pipeline.

[0071] In this embodiment, the conveying state of the screw feeder for the material includes: continuity, compulsiveness, reversibility, and uniformity.

[0072] In this embodiment, the conveying rate refers to the magnitude of the ability of the material to pass through the screw feeder per unit time.

[0073] In this embodiment, the factors affecting the conveying rate can be: the properties of the material itself, the geometric shape and size of the pipeline, the rotation speed of the screw feeder, screw rotational force, acceleration and other parameters, and the working medium.

[0074] In this embodiment, the screw conveying parts with different widths refer to: different shapes, sizes, and arrangement methods of the screw blades.

[0075] The beneficial effects of the above technical solution are as follows: By using a level gauge and sensors to obtain the real-time conveying state of the material by the screw feeder, and adjusting the conveying rate based on a PID controller to obtain the factors affecting the rate, and replacing the screw conveying part with different widths, it is possible to monitor the state during the conveying process in real time, and adjust the conveying rate based on the PID controller to make the material conveying process stable and accurate. At the same time, accurately obtain the factors affecting the rate, improve the conveying efficiency, and greatly ensure the reliability and stability of the system.

[0076] Embodiment 2:

[0077] Based on Embodiment 1, the embodiment of the present invention obtains the actual material quantity and conveying requirements, and determines the corresponding high-efficiency motor according to the actual material quantity and conveying requirements, including:

[0078] Obtain the usage parameters and consumption speed of the target material, and determine the actual material quantity based on the inventory level according to the usage parameters and consumption speed;

[0079] Obtain the conveying parameters and working environment, and determine the conveying requirements based on the conveying cycle according to the conveying parameters and working environment;

[0080] Determine the performance parameters of the motor according to the actual material quantity and production requirements, and determine the corresponding type and specification of the high-efficiency motor according to the performance parameters.

[0081] In this embodiment, the usage parameters include: usage situation, usage frequency.

[0082] In this embodiment, the material consumption speed refers to the speed at which the quantity of the material decreases per unit time.

[0083] In this embodiment, the conveying parameters are various data and settings during the conveying process, such as: production plan, machine man-hour quota, production rhythm, equipment utilization rate.

[0084] In this embodiment, the conveying cycle refers to the time required for the entire process from the start to the end of the conveying.

[0085] In this embodiment, the conveying requirement refers to the requirements for the transportation method and equipment of the material in the logistics process.

[0086] In this embodiment, the performance parameters include: rotational speed, torque, efficiency, reliability.

[0087] In this embodiment, the high-efficiency motor is a motor that can improve the mechanical transmission efficiency, reduce energy consumption, and lower the operating cost.

[0088] The beneficial effects of the above technical solution are as follows: Based on the usage parameters and consumption speed, the actual material quantity is determined according to the inventory level, and the corresponding high-efficiency motor is obtained by combining the production requirements determined by the production parameters and the working environment, which can better adapt to different working conditions, better protect the conveying system, and improve the transmission efficiency.

[0089] Embodiment 3:

[0090] Based on Embodiment 2, in the embodiment of the present invention, the level gauge and sensor are obtained according to the structure of the screw feeder, and the real-time conveying state of the screw feeder for materials is obtained according to the level gauge and sensor, including:

[0091] Obtain the working principle of the screw feeder, and determine the structure of the screw feeder according to the working principle;

[0092] Obtain the parts where the level gauge and sensor need to be installed according to the structure, and determine the installation position and layout according to the parts;

[0093] Obtain the level gauge and sensor based on the equipment compatibility according to the installation position and layout;

[0094] Measure the height and flow rate of the material according to the level gauge and sensor, and obtain the real-time conveying state of the screw feeder for materials according to the height and flow rate.

[0095] In this embodiment, the working principle of the screw feeder mainly relies on the rotating screw blades to convey materials.

[0096] In this embodiment, the level gauge is a device used to measure the position and quantity of materials in a container or pipeline.

[0097] In this embodiment, the structure of the screw feeder includes: a screw conveyor cylinder, a feed hopper, a discharge hopper, and a driving device.

[0098] In this embodiment, equipment compatibility refers to the adaptability and coordination between the equipment and the level gauge and sensor during actual application.

[0099] The beneficial effects of the above technical solution are as follows: Determine the positions for installing the level gauge and sensor according to the structure of the screw feeder, obtain the level gauge and sensor based on compatibility, and obtain the real-time conveying state of the screw feeder for materials, which can timely detect problems and make adjustments to ensure that the materials are accurately conveyed to the designated position within the specified time and area, thereby improving the stability of material conveying.

[0100] Embodiment 4:

[0101] Based on Embodiment 3, in the embodiment of the present invention, the structure of the screw feeder is determined according to the working principle, including:

[0102] Determine the physical and chemical properties of the materials of the screw feeder according to the working principle;

[0103] Determine the pressure and friction force parameters of the screw feeder during the material conveying process according to the physical and chemical properties;

[0104] Obtain the size and shape of the components of the screw feeder, and determine the processing technology according to the size and shape;

[0105] Determine the spiral shape and the equipment volume of the screw feeder according to the processing technology;

[0106] Determine the structure of the screw feeder according to the pressure and friction force parameters, the spiral shape and the equipment volume;

[0107] In this embodiment, the physical properties of the screw feeder include: strength, wear resistance, electrical conductivity, thermal conductivity.

[0108] In this embodiment, the chemical properties of the screw feeder include: corrosion resistance, no reaction, no radioactivity.

[0109] In this embodiment, the pressure of the screw feeder refers to the pressure generated during the material conveying process.

[0110] In this embodiment, the friction force parameters of the screw feeder refer to various physical quantities or indexes describing its friction performance, including: friction coefficient, friction angle, friction wear index, change rate of friction temperature.

[0111] In this embodiment, the spiral shape of the screw feeder refers to the geometric shape of the spiral blades of the screw feeder, such as: cylindrical spiral, conical spiral, elliptical spiral.

[0112] The beneficial effects of the above technical solution are: determining the structure of the feeder according to the pressure and friction force parameters of the screw feeder during the conveying process, the spiral shape of the screw feeder and the equipment volume can meet the requirements of material conveying, and has low noise and improves the service life of the feeder.

[0113] Embodiment 5:

[0114] Based on Embodiment 4, in the embodiment of the present invention, the conveying rate is adjusted based on the PID controller according to the conveying state, and the factors affecting the rate are determined based on the adjusted conveying rate according to the use environment, including:

[0115] Collect the conveying state information according to the conveying state, and construct a mathematical model according to the conveying state information;

[0116] Obtain the dynamic characteristics of the conveying process based on the transfer function technology according to the mathematical model;

[0117] Obtain the characteristics and requirements of the conveying process according to the dynamic characteristics, and set the control parameters of the PID controller according to the characteristics and requirements;

[0118] Automatically adjust the control output based on the control parameters according to the conveying state information, and adjust the conveying rate according to the adjusted control output;

[0119] Obtain the environmental data related to the conveying process according to the use environment, construct a conveying rate model according to the environmental data, and obtain the quantitative relationship between the conveying rate and environmental factors according to the conveying rate model;

[0120] Determine the factors affecting the rate based on the adjusted conveying rate according to the quantitative relationship.

[0121] In this embodiment, the conveying state of the screw feeder for materials includes:

[0122] Speed state: By adjusting the rotation speed or pitch, the conveying speed of the material can be changed.

[0123] Pressure state: When the screw feeder is running, a certain side pressure will be generated, and the magnitude of this pressure will affect the fluidity and stability of the material. If the pressure is too high, it may cause the loss of the material or blockage of the pipeline.

[0124] Flow state: The flow rate of the screw feeder refers to the amount of material flowing through the pipeline per unit time, which will affect the output and efficiency of the production line.

[0125] Viscosity state: For some materials, their viscosity will have an important impact on the conveying state. For example, if the material viscosity is too high, it will cause an increase in resistance during the conveying process and affect the conveying speed.

[0126] Temperature state: During the conveying process of the material, its temperature will change due to the influence of the machine and the environment. Too high or too low temperature may affect the conveying performance of the material.

[0127] In this embodiment, the conveying state information can be: conveying speed, pressure, density.

[0128] In this embodiment, the material conveying mathematical model is a mathematical tool for describing the motion state of the material during the conveying process.

[0129] In this embodiment, the transfer function technique is a method of expressing the relationship between the input signal and the output signal using a mathematical function.

[0130] In this embodiment, the dynamic characteristics of the conveying process refer to the phenomenon that during the material conveying process, due to the influence of various factors, the motion state of the material continuously changes, such as: the start and stop, speed adjustment of the feeder, and the properties of the material itself, such as density, hardness.

[0131] In this embodiment, the characteristics of the conveying process may be: conveying pressure, resistance, viscosity.

[0132] In this embodiment, the control parameters of the PID controller may be: proportional gain, integral time constant.

[0133] In this embodiment, the control output refers to the actual control signal generated by the controller.

[0134] In this embodiment, the conveying rate refers to the capacity of the material passing through the screw feeder per unit time.

[0135] In this embodiment, the conveying rate model mainly analyzes the physical principles of the material conveying process, establishes a corresponding mathematical model, and thus predicts the conveying rate of the material under given conditions.

[0136] In this embodiment, the quantitative relationship between the conveying rate and environmental factors is, for example: an increase in temperature will cause thermal expansion of the material, which may cause a change in the flow rate of the material in the pipeline.

[0137] In this embodiment, the factors affecting the conveying rate may be: the properties of the material itself, the geometry and size of the pipeline, the rotation speed of the screw feeder, screw rotational force, parameters such as acceleration, and the working medium.

[0138] The beneficial effects of the above technical solution are: based on the dynamic characteristics of the conveying process, obtain the characteristics and requirements of the conveying process, set the control parameters of the PID controller, and thus adjust the conveying rate, which can avoid the problem of too fast or too slow conveying rate in some cases, thereby improving the overall efficiency of material conveying and enhancing the conveying accuracy. Further, based on the adjusted conveying rate, determine the factors affecting the rate according to the quantitative relationship, and be able to formulate a more accurate conveying control strategy to avoid the influence of external factors on the conveying efficiency.

[0139] Embodiment 6:

[0140] Based on Embodiment 5, before the embodiment of the present invention obtains the level gauge and the sensor according to the structure of the screw feeder and obtains the real-time conveying state of the material by the screw feeder according to the level gauge and the sensor, it further includes:

[0141] Collect static data and dynamic data during the material transmission process, and determine the transmission behavior mechanism according to the dynamic data, static data and their related mapping parameters;

[0142] Obtain the transmission logic of the transmission behavior mechanism, and determine the key timing monitoring parameters based on the transmission logic;

[0143] Obtain relevant decision variables based on key timing monitoring parameters, and determine relevant machine operation scheduling parameters, manpower allocation scheduling parameters, and material-timing scheduling parameters for material transmission based on the relevant decision variables;

[0144] Determine the scheduling conditions for material transfer based on relevant machine operation scheduling parameters, manpower allocation scheduling parameters, and material-timing scheduling parameters;

[0145] Determine the level of scheduling resource tension based on scheduling conditions, and determine whether scheduling parameters need to be optimized based on the level of scheduling resource tension;

[0146] If yes, obtain structural parameters of the transmission material, perform rheological property test on the transmission material based on the structural parameters, and obtain test results;

[0147] Determine the rheological property constitutive equation of the transmission material based on the test results, and determine the state monitoring interval distance parameter of the transmission material based on the rheological property constitutive equation and transmission requirements;

[0148] Adaptively optimize the manpower allocation scheduling parameters and related machine operation scheduling parameters based on the condition monitoring distance parameters;

[0149] Determine the manpower allocation and conveying volume configuration parameters at the material conveying end based on the optimization results, and adaptively optimize the material-timing scheduling parameters based on the manpower allocation and conveying volume configuration parameters;

[0150] A material transmission plan is generated by optimizing the scheduling parameters, and the material transmission plan is used to control the screw feeder to transmit the material, and the real-time material transmission status of the screw feeder is obtained according to the material level meter and the sensor.

[0151] In this embodiment, static data during material transportation refers to unchanging information related to the material itself or the transportation system. This data remains constant throughout the material transportation process and does not change as the material moves. For example:

[0152] Material properties: material name, chemical composition, density, particle size distribution.

[0153] Packaging information: packaging type (such as bags, barrels, etc.), unit weight or volume, packaging materials.

[0154] Source and destination information: origin, destination, and supplier information.

[0155] In this embodiment, dynamic data during material transportation refers to data that changes over time and reflects the real-time status or conditions during the material transportation process, such as:

[0156] Location information: real-time geographic location, current location on the transmission route.

[0157] Speed, acceleration: The speed, acceleration or deceleration of material transfer.

[0158] Environmental conditions: Current temperature, humidity, air pressure, light intensity (which may be important for some sensitive materials).

[0159] Material status: The physical state of the material (such as liquid, solid, etc.), the quality status of the material (whether there is damage, leakage, etc.).

[0160] In this embodiment, the relevant mapping parameters can be: timestamp, geographical location information, temperature and humidity sensitivity.

[0161] In this embodiment, the transfer behavior mechanism of the material is how the material is transferred between feeders.

[0162] In this embodiment, the transfer logic of the material transfer behavior mechanism can be:

[0163] Define the status of the material: The status of the material in the system can be arrived, to be processed, processed, not arrived, etc. Each material must have a unique identifier for tracking and management throughout the system.

[0164] Define the attributes of the material: Each material has its own attributes, such as name, type, weight, volume, etc. These attributes are used to describe the characteristics and uses of the material.

[0165] Define the behavior rules of the material: Each material has a behavior rule that describes how it interacts with other materials and the events that occur during these interactions. For example, the behavior rule of one material may be "can only start processing after receiving a notice from another material", while the behavior rule of another material may be "can only stop processing after receiving a notice from another material".

[0166] In this embodiment, the key timing monitoring parameters are parameters used to monitor and control the execution time of key processes or tasks, such as: time window, maximum response time, timeout threshold.

[0167] In this embodiment, the relevant decision variables refer to the variables that need to be considered during the decision-making process, usually factors related to a certain goal or problem, such as: the status of the material, the quality of the material, the status of the screw feeder.

[0168] In this embodiment, the relevant machine operation scheduling parameters for material transfer include: machine type, transfer scale, transfer process.

[0169] In this embodiment, the relevant human resource allocation scheduling parameters for material transfer: the number of personnel, the setting and training plan of positions, the division of job responsibilities, personnel training and selection.

[0170] In this embodiment, the scheduling parameters of materials - timing refer to the key factors for effectively scheduling materials during the logistics transportation process, such as:

[0171] Time parameters: Refer to when the materials need to be scheduled, including the time nodes in various links such as production, warehousing, and outbound.

[0172] Location parameters: Refer to where the materials need to be scheduled, including the location information in various links such as the transportation starting point, transfer station, and end point.

[0173] Method parameters: Refer to how the materials are scheduled, including the transportation method, vehicle type, and loading and unloading method.

[0174] In this embodiment, the scheduling conditions for material transfer refer to some conditions that need to be met during the material transportation process, such as time.

[0175] In this embodiment, the scheduling resource tension level refers to the situation during the material transportation process where, due to various reasons, the transportation resources are insufficient to meet the needs of all materials, resulting in difficulties in task allocation for transportation.

[0176] In this embodiment, the rheological properties of the transported materials refer to the changes in the physical and chemical properties of the materials during the transportation process, which affect the flow performance of the materials.

[0177] In this embodiment, the state monitoring interval distance parameter of the transported materials refers to the time interval for monitoring the material state during the material transportation process.

[0178] The beneficial effects of the above - mentioned technical solution are as follows: By generating a material transfer plan through the optimized scheduling parameters, controlling the spiral feeder to transfer materials through the material transfer plan, and precisely controlling parameters such as the flow rate, speed, and pressure of the materials through the material transfer plan, it can ensure the stability of the materials during transportation and improve the purity of the materials. At the same time, it can precisely control parameters such as the conveying volume, frequency, and speed of the materials, improving the material transfer efficiency.

[0179] Embodiment 7:

[0180] Based on Embodiment 6, in this embodiment of the present invention, different - width spiral conveying parts are replaced according to the factors affecting the rate, and materials are conveyed according to the replaced spiral conveying parts to achieve the conveying control of the spiral feeder for materials, including:

[0181] Determine the influence degree of different - width spiral conveying parts on the conveying speed according to the factors affecting the rate;

[0182] Replace different - width spiral conveying parts according to the influence degree based on the properties of the materials and the resistance during the conveying process;

[0183] Convey materials according to the replaced spiral conveying part to achieve the conveying control of the materials of the screw feeder.

[0184] In this embodiment, the factors affecting the conveying rate can be: the properties of the materials themselves, the geometry and size of the pipeline, the rotation speed of the screw feeder, the screw rotation force, parameters such as acceleration, and the working medium.

[0185] In this embodiment, the spiral conveying parts with different widths refer to: different shapes, sizes, and arrangement methods of the spiral blades.

[0186] In this embodiment, the degree of influence on the conveying speed refers to the magnitude of the influence exerted by a certain factor or variable on the conveying speed.

[0187] In this embodiment, the properties of the materials refer to the basic attributes and characteristics of the materials, including physical, chemical, and mechanical properties.

[0188] In this embodiment, the resistance during the conveying process refers to the resistance force suffered by the materials during the conveying process.

[0189] The beneficial effects of the above technical solution are: Replace the spiral conveying parts with different widths according to the factors affecting the rate based on the properties of the materials and the resistance during the conveying process to achieve the conveying control, which can better adapt to different conveying situations, thereby improving the efficiency of material conveying. At the same time, the spiral conveying parts with different widths can withstand different degrees of material pressure and friction, thereby reducing the wear of the screw feeder.

[0190] Embodiment 8:

[0191] An embodiment of the present invention provides a material conveying control system for a screw feeder, as Figure 2 shown, including:

[0192] Determination module: Obtain the actual material quantity and production requirements, and determine the corresponding high-efficiency motor according to the actual material quantity and production requirements;

[0193] Acquisition module: Obtain a level gauge and a sensor according to the structure of the screw feeder, and obtain the real-time conveying state of the screw feeder for the materials according to the level gauge and the sensor;

[0194] Adjustment module: Adjust the conveying rate based on the PID controller according to the conveying state, and determine the factors affecting the rate based on the use environment according to the adjusted conveying rate;

[0195] Replacement module: Replace the spiral conveying parts with different widths according to the factors affecting the rate, and convey materials according to the replaced spiral conveying parts to achieve the conveying control of the materials of the screw feeder.

[0196] The beneficial effects of the above technical solution are as follows: The real-time conveying state of the material by the screw feeder is obtained through the level gauge and the sensor, and the conveying rate is adjusted based on the PID controller to obtain the factors affecting the rate. By replacing the screw conveying part with different widths, the state during the conveying process can be monitored in real time, and the conveying rate is adjusted based on the PID controller to make the material conveying process stable and accurate. At the same time, the factors affecting the rate are accurately obtained, the conveying efficiency is improved, and the reliability and stability of the system are greatly ensured.

[0197] [[ID=z3]]Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on such an understanding, the essence of the above technical solution, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0198] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A control method for material conveying of a screw feeder, characterized in that, Including: Step 1: Obtain the actual material quantity and conveying requirements, and determine the corresponding high-efficiency motor according to the actual material quantity and conveying requirements; Step 2: Obtain the level gauge and sensor according to the structure of the screw feeder, and obtain the real-time conveying state of the screw feeder for the material according to the level gauge and sensor; Step 3: Adjust the conveying rate based on the PID controller according to the conveying state, and determine the factors affecting the rate based on the usage environment according to the adjusted conveying rate; Step 4: Replace the screw conveying part with different widths according to the factors affecting the rate, and convey the material according to the replaced screw conveying part to realize the conveying control of the material by the screw feeder.

2. The material conveying control method of the screw feeder according to claim 1, characterized in that Obtaining the actual material quantity and conveying requirements, and determining the corresponding high-efficiency motor according to the actual material quantity and conveying requirements, includes: Obtain the usage parameters and consumption speed of the target material, and determine the actual material quantity based on the inventory level according to the usage parameters and consumption speed; Obtain the conveying parameters and working environment, and determine the conveying requirements based on the conveying cycle according to the conveying parameters and working environment; Determine the performance parameters of the motor according to the actual material quantity and production requirements, and determine the corresponding type and specification of the high-efficiency motor according to the performance parameters.

3. The material conveying control method of the screw feeder according to claim 1, characterized in that, Obtaining the level gauge and sensor according to the structure of the screw feeder, and obtaining the real-time conveying state of the screw feeder for the material according to the level gauge and sensor, includes: Obtain the working principle of the screw feeder, and determine the structure of the screw feeder according to the working principle; Obtain the parts where the level gauge and sensor need to be installed according to the structure, and determine the installation position and installation layout according to the parts; Obtain the level gauge and sensor based on the equipment compatibility according to the installation position and installation layout; Measure the height and flow rate of the material according to the level gauge and sensor, and obtain the real-time conveying state of the screw feeder for the material according to the height and flow rate.

4. The material conveying control method of the screw feeder according to claim 3, characterized in that, Determining the structure of the screw feeder according to the working principle, includes: Determine the physical and chemical properties of the screw feeder material according to the working principle; Determine the pressure and friction force parameters of the screw feeder during the material conveying process according to the physical and chemical properties; Obtain the size and shape of the screw feeder parts, and determine the processing technology according to the size and shape; Determine the spiral shape and equipment volume of the screw feeder according to the processing technology; Determine the structure of the screw feeder according to the pressure and friction force parameters, spiral shape and equipment volume.

5. The material conveying control method of the screw feeder according to claim 1, characterized in that, Adjusting the conveying rate based on the PID controller according to the conveying state, and determining the factors affecting the rate based on the usage environment according to the adjusted conveying rate, includes: Collect the conveying state information according to the conveying state, and construct a mathematical model according to the conveying state information; Obtain the dynamic characteristics of the conveying process based on the transfer function technology according to the mathematical model; Obtain the characteristics and requirements of the conveying process according to the dynamic characteristics, and set the control parameters of the PID controller according to the characteristics and requirements; Automatically adjust the control output based on the control parameters according to the conveying state information, and adjust the conveying rate according to the adjusted control output. Obtain environmental data related to the conveying process according to the usage environment, construct a conveying rate model based on the environmental data, and obtain the quantitative relationship between the conveying rate and environmental factors according to the conveying rate model; Determine the factors affecting the rate based on the adjusted conveying rate and the quantitative relationship.

6. The material conveying control method of the screw feeder according to claim 1, characterized in that Before obtaining the level gauge and sensor according to the structure of the screw feeder and obtaining the real-time conveying state of the screw feeder for the material according to the level gauge and sensor, it further includes: Collect the static data and dynamic data during the material transmission process, and determine the transmission behavior mechanism according to the dynamic data, static data and their related mapping parameters; Obtain the transmission logic of the transmission behavior mechanism, and determine the key timing monitoring parameters based on the transmission logic; Obtain relevant decision variables according to the key timing monitoring parameters, and determine the relevant machine operation scheduling parameters, manpower allocation scheduling parameters and material-time scheduling parameters for the material transmission based on the relevant decision variables; Determine the scheduling conditions for the material transmission according to the relevant machine operation scheduling parameters, manpower allocation scheduling parameters and material-time scheduling parameters; Determine the tightness level of the scheduling resources according to the scheduling conditions, and confirm whether it is necessary to optimize the scheduling parameters based on the tightness level of the scheduling resources; If so, obtain the structural parameters of the conveyed material, conduct a rheological property test on the conveyed material based on the structural parameters, and obtain the test results; Determine the constitutive equation of the rheological properties of the conveyed material according to the test results, and determine the state monitoring interval distance parameter of the conveyed material according to the constitutive equation of the rheological properties and the transmission requirements; Adaptively optimize the manpower allocation scheduling parameters and relevant machine operation scheduling parameters according to the state monitoring distance parameter; Determine the manpower configuration and conveying volume configuration parameters at the material conveying end according to the optimization results, and adaptively optimize the material-time scheduling parameters according to the manpower configuration and conveying volume configuration parameters; Generate a material transmission plan through the optimized scheduling parameters, control the screw feeder to convey the material through the material transmission plan, and obtain the real-time conveying state of the screw feeder for the material according to the level gauge and sensor.

7. The material conveying control method of the screw feeder according to claim 1, characterized in that Replace the screw conveying part with different widths according to the factors affecting the rate, and convey the material according to the replaced screw conveying part to realize the conveying control of the material by the screw feeder, including: Determine the influence degree of the screw conveying part with different widths on the conveying speed according to the factors affecting the rate; Replace the screw conveying part with different widths according to the influence degree based on the properties of the material and the resistance during the conveying process; Convey the material according to the replaced screw conveying part to realize the conveying control of the material by the screw feeder.

8. A material conveying control system for a screw feeder, characterized in that, It includes: Determination module: Obtain the actual material quantity and production requirements, and determine the corresponding high-efficiency motor according to the actual material quantity and production requirements; Obtaining module: Obtain the level gauge and sensor according to the structure of the screw feeder, and obtain the real-time conveying state of the screw feeder for the material according to the level gauge and sensor; Adjustment module: Adjust the conveying rate based on the PID controller according to the conveying state, and determine the factors affecting the rate based on the adjusted conveying rate and the usage environment; Replacement module: Different-width screw conveyor parts are replaced according to the factors affecting the rate. The material is conveyed according to the replaced screw conveyor part, realizing the conveying control of the material of the screw feeder.

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