Metal cutting briquetting machine multi-stage flushing and anti-flying chip integrated system and control method

Abstract

This invention relates to a multi-stage flushing and anti-shavings integrated system and control method for a metal cutting briquetting machine. The system includes an operating status sensing module, a flushing command generation module, an anti-shavings linkage module, and a multi-stage flushing execution module. The system collects real-time equipment operating data to determine the degree of debris accumulation and generates graded flushing commands. Before performing high-intensity flushing, it automatically drives the flexible cover plate above the briquetting machine to close, achieving debris protection. It controls the nozzles to spray cleaning fluid according to a specified sequence, duration, and target flow rate, ensuring that high-speed spraying only occurs when the cover plate is closed. This system possesses dynamic response capabilities and a linkage control mechanism, effectively improving flushing efficiency and preventing metal debris escape, making it suitable for intelligent cleaning operations in the metal processing field.

Description

Technical Field

[0001] This invention relates to the field of metal cutting technology, and in particular to a multi-stage flushing and anti-chipping integrated system for a metal cutting briquetting machine and its control method. Background Technology

[0002] In metal cutting and subsequent briquetting processes, high-pressure flushing systems are commonly used to remove residual chips in order to improve equipment cleanliness and product briquette quality. These systems are combined with physical protective structures to reduce the impact of flying chips on the environment and personnel. Traditional flushing systems are mostly triggered at fixed time intervals, and the anti-flying chip structures generally use rigid covers or pneumatic baffles, but their actions are not effectively linked to the flushing system.

[0003] However, existing technologies still have significant shortcomings in terms of the real-time performance and accuracy of flushing control. Specifically, the flushing system cannot dynamically adjust nozzle control parameters according to the equipment's operating status, which can easily lead to insufficient flushing or waste of resources; the debris protection device lacks the ability to respond to and judge high-risk flushing behaviors and fails to effectively synchronize with the flushing start-up, posing a risk of debris escape; in addition, the lack of information exchange and linkage mechanisms between modules results in the flushing process and the protection process being independent of each other, making it difficult to achieve system-wide collaborative optimization.

[0004] Therefore, there is an urgent need to propose an integrated flushing and anti-dandruff system and its control method that can realize state perception, linkage control and on-demand response. Summary of the Invention

[0005] This application provides a multi-stage flushing and anti-shaving integrated system and control method for a metal cutting briquetting machine, so as to improve flushing efficiency and prevent metal shavings from escaping.

[0006] This application provides a multi-stage flushing and anti-chip-flying integrated system for a metal cutting briquetting machine, including:

[0007] The operation status sensing module is used to continuously collect the vibration amplitude, water pump outlet pressure and flushing fluid flow rate of the crusher, chip conveyor and briquetting machine during operation, and determine the degree of chip accumulation and flushing demand intensity based on the data change amplitude within multiple sampling periods.

[0008] The flushing instruction generation module is used to receive the degree of debris accumulation and flushing demand intensity output by the operation status sensing module, and generate control instructions for controlling the start-up sequence, spray duration and target flow rate of multiple flushing nozzles according to preset priority rules and time window settings.

[0009] The anti-flying debris linkage module is used to identify flushing tasks with a risk of high-speed spraying based on the spray duration and target flow rate output by the flushing command generation module, and drive the flexible cover to close before flushing begins. The flexible cover is installed above the briquetting machine to block metal debris that may splash during flushing, and sends a closing completion signal of the flexible cover to the flushing command generation module to control the relevant nozzles to start only after the flexible cover is fully closed.

[0010] The multi-stage flushing execution module is used to drive multiple nozzles to start in stages according to the control command. Each nozzle sprays cleaning liquid according to the corresponding duration and target flow rate, and receives the closing completion signal from the anti-dust linkage module in real time during the cleaning process to ensure that all nozzles involved in high-speed flushing only operate when the flexible cover is in the closed state.

[0011] Furthermore, the multi-stage flushing and anti-chip integrated system for the metal cutting briquetting machine also includes:

[0012] The flushing fluid recovery and purification module is used to collect the sludge containing metal fragments generated during the flushing process. It then passes through a filter to remove large particles of impurities, followed by sedimentation to remove fine suspended solids. The cleaned liquid is then returned to the supply pipeline. The actual volume of the recovered liquid and the time required for purification are fed back to the operation status sensing module to adjust the pump runtime and waiting interval for the next flushing task.

[0013] Furthermore, the operational status sensing module is specifically used for:

[0014] When the vibration sensor installed on the crusher, chip conveyor and briquetting machine, the pressure sensor at the water pump outlet and the flow rate sensor in the main liquid supply pipeline are working continuously, they collect real-time data of vibration amplitude, water pump outlet pressure and flushing liquid flow rate according to the preset sampling frequency, and record the data of multiple consecutive sampling cycles in chronological order.

[0015] Within each sampling period, the vibration amplitude is differentially calculated to obtain the change in vibration amplitude between the current period and the previous period; the difference between the maximum and minimum values ​​of the pump outlet pressure is obtained as the pump pressure fluctuation amplitude for the current period; the change in flushing fluid flow rate in the current period is divided by the average value of the previous period to obtain the flow rate decrease ratio for the current period.

[0016] The vibration amplitude change, water pump pressure fluctuation amplitude and flow rate decrease ratio are compared with the corresponding benchmark values. When any two of the three exceed the first preset threshold corresponding to the set benchmark value, and at least one exceeds the second preset threshold, it is determined that the current state is in abnormal debris accumulation.

[0017] Based on the duration of the abnormal debris accumulation and the percentage of the largest deviation from the baseline value among the three values, the current degree of debris accumulation is classified as mild, moderate, or severe, and the current flushing intensity is determined as low, medium, or high.

[0018] This application provides a multi-stage flushing and anti-chip-flying integrated control method for a metal cutting briquetting machine, including:

[0019] During equipment operation, the vibration amplitude of the crusher, chip conveyor and briquetting machine, the water pump outlet pressure and the flushing fluid flow rate are continuously collected. Based on the change amplitude of the data collected in multiple sampling periods, the degree of chip accumulation at the corresponding equipment is judged and the current flushing demand intensity is determined.

[0020] Based on the degree of debris accumulation and the intensity of flushing demand, control instructions for multiple flushing nozzles are generated according to preset priority rules and time window settings. The control instructions include the start-up sequence, spray duration and target flow rate of each nozzle.

[0021] The system identifies rinsing tasks with a risk of high-speed jetting in the control commands, drives the flexible cover plate set above the briquetting machine to close before the task is executed, so as to block the metal debris that may splash during the rinsing process, and generates a cover plate closure completion signal after the flexible cover plate is closed and sends the generated signal to the control logic used to control the nozzle execution.

[0022] According to the control command, each flushing nozzle is driven to start one by one or in groups in a graded sequence, so that the flushing nozzle sprays cleaning liquid at a set target flow rate within the corresponding duration. For nozzles with a risk of high-speed spraying, they can only be started after receiving a signal that the flexible cover has closed, so as to ensure that the spraying action is carried out in the closed state of the protective structure.

[0023] The beneficial effects of this application mainly include: (1) By collecting data such as equipment vibration, water pressure and flow rate in real time through the operation status sensing module, the system can dynamically judge the degree of debris accumulation, avoid the waste of resources and insufficient rinsing caused by traditional timed rinsing, and improve the overall cleaning efficiency and liquid utilization rate. (2) The rinsing instruction generation module generates graded control parameters based on real-time status data, realizes the precise allocation of the start sequence, flow rate and duration of multiple nozzles, enhances the adaptability of rinsing action to actual pollution intensity, and significantly improves the rinsing effect. (3) By driving the flexible cover to close synchronously with the high-intensity rinsing task through the anti-flying debris linkage module, it ensures that the high-speed spraying operation is only performed when the cover is closed, effectively preventing metal debris from splashing and ensuring the safety of the operating environment. (4) Signal interaction and control coordination are realized between various functional modules, constructing a complete closed-loop control process from perception, judgment to execution, improving the system's automation level and overall stability, and is suitable for unattended operation scenarios. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a multi-stage flushing and anti-chip integrated system for a metal cutting briquetting machine provided in the first embodiment of this application.

[0025] Figure 2 This is a flowchart of a multi-stage flushing and anti-chip integrated control method for a metal cutting briquetting machine provided in the second embodiment of this application.

[0026] Figure 3 This is a schematic diagram of the liquid supply system involved in the first embodiment of this application. Detailed Implementation

[0027] Many specific details are set forth in the following description to provide a full understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of this application; therefore, this application is not limited to the specific embodiments disclosed below.

[0028] The first embodiment of this application provides a multi-stage flushing and anti-chip-flying integrated system for a metal cutting briquetting machine. Please refer to... Figure 1 This figure is a schematic diagram of the first embodiment of this application. The following is in conjunction with... Figure 1 The first embodiment of this application provides a detailed description of a multi-stage flushing and anti-chip integrated system for a metal cutting briquetting machine.

[0029] The multi-stage flushing and anti-chipping integrated system for the metal cutting briquetting machine includes an operation status sensing module 101, a flushing instruction generation module 102, an anti-chipping linkage module 103, and a multi-stage flushing execution module 104.

[0030] The operation status sensing module 101 is used to continuously collect the vibration amplitude, water pump outlet pressure and flushing fluid flow rate of the crusher, chip conveyor and briquetting machine during operation, and determine the degree of chip accumulation and flushing demand intensity based on the data change amplitude within multiple sampling periods.

[0031] The operational status sensing module 101 is used to continuously monitor and extract data on the operating status of key equipment in the metal cutting briquetting system, and uses this data as the basis for subsequent flushing control decisions. This module is installed on the structure, support frame, or hydraulic power unit of equipment such as crushers, chip conveyors, and briquetting machines, and integrates various industrial-grade sensors, including but not limited to vibration acceleration sensors, pressure transmitters, and electromagnetic flow sensors. These sensors are used to collect data on the vibration amplitude of each piece of equipment during operation, the actual pressure at the water pump outlet, and the flow rate of the cleaning fluid in the main supply pipeline. The selected sensors must have high-frequency response capability, electromagnetic interference resistance, and protection against high humidity, high temperature, or dusty environments. Industrial sensors with 4–20mA analog output and Modbus communication capabilities are recommended, and the data should be connected to a PLC system or embedded control platform through a unified data acquisition terminal.

[0032] Within each complete sampling cycle, this module collects equipment operation data at fixed time intervals (e.g., every 200 milliseconds), forming a continuous dynamic monitoring sample sequence. After each sampling cycle, the operation status perception module calculates statistical parameters characterizing changes in operation status by comparing the current set of samples with the previous set in dimensions such as mean, fluctuation amplitude, and gradient change. Changes in vibration signals can be used to determine whether abnormal accumulation occurs during the chip removal process, pressure changes reflect whether there are abnormal fluctuations in the main pump load, and flow rate changes are used to assess whether the resistance of the flushing fluid in each branch channel has increased. Through the joint analysis of the above parameters, the module can quantify the possible degree of chip accumulation at different equipment locations. For example, if the vibration amplitude of the briquetting machine continuously increases within 5 minutes and the water pump outlet pressure rises while the flow rate decreases within the same cycle, it can be determined that there is a local blockage in the flushing channel, and the chips have not been removed in time, thus indicating that the current degree of chip accumulation is at a medium-to-high risk level.

[0033] To improve identification accuracy, the operational status sensing module is internally configured with finite state machine logic or rule-based decision-making algorithms to map quantitative indicators such as vibration change rate, pressure offset amplitude, and flow rate decrease rate to corresponding "flushing demand intensity" levels, such as "no flushing required," "low-intensity flushing," and "high-intensity flushing." These judgment results are output in structured data form, including the current degree of debris accumulation (e.g., "chip conveyor: moderate accumulation, briquetting machine: slight accumulation") and the suggested flushing response level. All output data is transmitted in real time to the flushing command generation module via data bus or industrial Ethernet, so that the latter can formulate specific nozzle start-up sequences and flow control plans based on the sensing information.

[0034] In addition, the operation status sensing module also has operation self-check and abnormal alarm functions. When a sensor continuously exceeds the set threshold (such as pressure continuously higher than 0.5 MPa, flow rate continuously lower than 2.0 m / s) or fails to provide valid data (such as signal disconnection time exceeding 3 seconds), the module will trigger a fault prompt and issue an alarm message on the control interface to prompt maintenance personnel to check the status of the relevant equipment.

[0035] In summary, the operational status sensing module 101 not only provides the basis for determining whether flushing is necessary, but also provides real-time data support for the dynamic adjustment of the flushing strategy. It is a key foundational module for the entire system to achieve efficient energy management and intelligent response mechanisms. Through its well-defined structure, standardized interfaces, and integrated functions, it can effectively adapt to the field application needs of various types of metal cutting briquetting systems, ensuring that subsequent modules respond correctly and in a timely manner.

[0036] Furthermore, the operational status sensing module is specifically used for:

[0037] When the vibration sensor installed on the crusher, chip conveyor and briquetting machine, the pressure sensor at the water pump outlet and the flow rate sensor in the main liquid supply pipeline are working continuously, they collect real-time data of vibration amplitude, water pump outlet pressure and flushing liquid flow rate according to the preset sampling frequency, and record the data of multiple consecutive sampling cycles in chronological order.

[0038] Within each sampling period, the vibration amplitude is differentially calculated to obtain the change in vibration amplitude between the current period and the previous period; the difference between the maximum and minimum values ​​of the pump outlet pressure is obtained as the pump pressure fluctuation amplitude for the current period; the change in flushing fluid flow rate in the current period is divided by the average value of the previous period to obtain the flow rate decrease ratio for the current period.

[0039] The vibration amplitude change, water pump pressure fluctuation amplitude and flow rate decrease ratio are compared with the corresponding benchmark values. When any two of the three exceed the first preset threshold corresponding to the set benchmark value, and at least one exceeds the second preset threshold, it is determined that the current state is in abnormal debris accumulation.

[0040] Based on the duration of the abnormal debris accumulation and the percentage of the largest deviation from the baseline value among the three values, the current degree of debris accumulation is classified as mild, moderate, or severe, and the current flushing intensity is determined as low, medium, or high.

[0041] To achieve intelligent trigger control of the multi-stage flushing process in a metal cutting briquetting machine, the operating status sensing module in this invention employs a multi-sensor parallel data acquisition method to continuously monitor the operating status of the crusher, chip conveyor, and briquetting machine. This module includes a vibration sensor, a water pump outlet pressure sensor, and a flow rate sensor installed in the main liquid supply line. These three types of sensors are used to acquire real-time data on vibration amplitude, water pump outlet pressure, and flushing fluid flow rate, respectively. Sensor selection must meet the stability requirements of the industrial environment, possessing strong anti-interference capabilities, fast response speed, and stable data output. The acquisition frequency can be set according to the actual system operating rhythm, for example, 5 times per second or higher. Data continuously acquired by each type of sensor is stored chronologically to form a structured time series for subsequent analysis.

[0042] Within any sampling period, the operational status sensing module extracts features from three raw data points. For vibration data, the module performs a difference operation, subtracting the vibration amplitude of the current period from that of the previous period to obtain the change in vibration amplitude. For pump outlet pressure, the module extracts the maximum and minimum values ​​within the current period and calculates the difference, which is taken as the pressure fluctuation amplitude within that period. For flushing fluid flow rate, the module takes the average value within the current period and compares it with the average value of the previous period, calculating the ratio of its change to the average value of the previous period to form the flow rate decrease ratio. These three parameters constitute the key evaluation indicators of the current operational status, reflecting system stability and the possibility of debris accumulation from the perspectives of mechanical disturbance, hydraulic fluctuation, and flow continuity, respectively.

[0043] This module has a built-in benchmark system, which includes preset reference values ​​for vibration amplitude change, water pump pressure fluctuation amplitude, and flow rate decrease percentage under clean and stable operating conditions. During operation, the system continuously compares the three evaluation indicators calculated in each cycle with their corresponding benchmark values, and sets a first preset threshold and a second preset threshold to determine whether an abnormal state has been entered. When any two of the three evaluation indicators exceed the first preset threshold, and at least one exceeds the second preset threshold, it can be determined that the current equipment is in a state of abnormal debris accumulation, indicating that chips may be accumulating in multiple structures, the flushing channel may be blocked, or liquid flow may be restricted.

[0044] After identifying an abnormal debris accumulation state, the module further classifies the risk level of debris accumulation by combining the duration of the abnormal state with the maximum deviation of each indicator from the baseline value. The system can set specific grading standards; for example, an abnormal duration exceeding 30 seconds and a deviation ratio exceeding 1.5 times the baseline value is classified as "severe," a deviation ratio between 1.2 and 1.5 times is "moderate," and less than 1.2 times is "mild." This grading system comprehensively assesses the degree of debris accumulation in various locations and uses the corresponding grading results as a reference for the intensity of current flushing requirements, thus classifying flushing tasks as low, medium, or high intensity. To avoid ambiguity, the grading should explicitly include equivalent cases. For example: severe corresponds to a deviation ratio ≥ 1.5, moderate to 1.2 ≤ deviation ratio < 1.5, and mild to a deviation ratio < 1.2.

[0045] Finally, the operation status perception module outputs the determined degree of debris accumulation and flushing demand intensity to the flushing instruction generation module, which generates specific nozzle control instructions to realize data-driven cleaning decisions throughout the entire process.

[0046] The following is a specific example. Taking a metal cutting briquetting machine installed in a metal processing workshop as an example, during system operation, an IFM-type accelerometer vibration sensor is installed on the side shell of the crusher, a pressure transmitter is installed between the main liquid supply pipe and the pump outlet, and an ultrasonic flow sensor is installed downstream of the flushing fluid main pipe. The system sampling frequency is set to 5Hz, that is, 5 sets of data are collected per second. The system's set reference values ​​are: vibration amplitude variation not exceeding 10mm / s, water pump pressure fluctuation not exceeding 0.04MPa, and flushing fluid flow rate decrease not exceeding 8%. The first preset threshold is set to 120% of the reference value, and the second preset threshold is set to 150% of the reference value.

[0047] Under a typical pre-flushing condition, the vibration amplitude changes recorded by the system in three consecutive sampling cycles were 10.2 mm / s, 13.4 mm / s, and 15.7 mm / s, respectively, all exceeding the reference value of 10 mm / s, and exceeding the first preset threshold of 12 mm / s twice consecutively; the pressure fluctuation amplitudes were 0.046 MPa, 0.051 MPa, and 0.053 MPa, respectively, exceeding the first preset threshold of 0.048 MPa, and exceeding the second preset threshold of 0.06 MPa for the third time; simultaneously, the flow rate decrease rates were 9%, 11%, and 15%, exceeding the second preset threshold of 12% for the third time. According to the judgment rule, if two of the three parameters continuously exceed the first preset threshold, and at least one exceeds the second preset threshold in multiple cycles, the system determines it to be a "state of abnormal debris aggregation".

[0048] Since this state lasted for more than 30 seconds and the deviation ratio of the vibration change was 57% (15.7 mm / s compared to 10 mm / s), the system determined the current debris accumulation level to be "severe" and set the flushing demand intensity to "high intensity". This result was transmitted to the flushing command generation module, which then set the spraying duration of the corresponding area nozzles to 10 seconds, the target flow rate to 10 liters / minute, and prioritized the execution order in the command.

[0049] Furthermore, the operational status perception module also includes a functional unit for predicting the abnormal aggregation trend of debris based on the fused perturbation index, specifically used for:

[0050] Within each sampling period, the vibration amplitude value for the current sampling period is obtained based on vibration sensors installed on the crusher, chip conveyor, and briquetting machine, pressure sensors at the water pump outlet, and flow velocity sensors in the main liquid supply pipeline. Pump outlet pressure value and flushing fluid flow rate value and combine them with the past The mean and standard deviation of historical data from each sampling period are calculated, where the standard deviation of vibration amplitude is... The standard deviation of the water pump pressure is The standard deviation of the flushing fluid flow rate is Each standard deviation is based on the corresponding variable in the past Calculated from the sample sequence within each sampling period;

[0051] Calculate the disturbance index using Formula 1 as follows:

[0052]

[0053] in, For the front The average pressure value over each sampling period; For the front The mean of the flow rate values ​​in each sampling period; , and To adjust the parameters; For a moment The vibration amplitude value; For the moment The water pump outlet pressure value;

[0054] Calculate the dynamic trend value of the disturbance intensity according to Formula 2 below:

[0055]

[0056] in, Values ​​representing the dynamic trend of disturbance intensity; The length of the sliding time window; Indicates at time The disturbance index; Indicates at time The disturbance index;

[0057] if and When this occurs, it is determined to be a state of abnormal debris aggregation, in which... Determine the threshold for the disturbance index; The threshold for determining trend gain.

[0058] In the multi-stage flushing and anti-shaving integrated system for metal cutting briquetting machines provided by this invention, the operating status sensing module is expanded to include a functional unit that integrates disturbance index construction and abnormal trend identification. This unit accurately determines whether the system has entered a state of abnormal debris accumulation, thereby triggering the corresponding flushing scheduling process. The core of this functional unit lies in fusing multiple physical state quantities to form a disturbance index and making dynamic judgments based on the trend changes of the disturbance index over time. This process fully integrates the characteristics of the current periodic signal and historical statistical behavior, ensuring that the judgment results are both sensitive and stable.

[0059] During implementation, vibration sensors installed on the crusher, chip conveyor, and briquetting machine continuously output the vibration amplitude value of the current cycle, denoted as . The unit is millimeters per second (m / s) The pressure sensor at the pump outlet provides the real-time pressure value, denoted as ); The unit is kilopascal (kPa); the flow rate sensor embedded in the main liquid supply line records the current liquid flushing speed, denoted as... The unit is meters per second (m / s) To be more robust and adaptable, the system will synchronously read this data from the past. Historical records from each sampling period were used to calculate three key statistics: the standard deviation of the vibration amplitude. Standard deviation of water pump pressure and the standard deviation of the flushing fluid flow rate These three standard deviations reflect the natural fluctuation range of the corresponding physical quantity during the recent operation of the system. The commonly used calculation formula is:

[0060] in Can be or , indicating that a certain variable in Sampled values ​​for each period; It is its corresponding mean.

[0061] Based on the aforementioned standard deviation, the system standardizes the three monitored quantities and constructs a disturbance index. , as follows:

[0062]

[0063] In this formula: the first term The amplitude fluctuation index represents the standardized change in vibration value between the current cycle and the previous cycle; a larger value indicates a more drastic change in the operating state of the mechanical structure. The second item... Is near The standardized variance of the water pressure recorded within the period represents the instability of the hydraulic system; the third term It reflects the degree of deviation of the current flow rate from its historical average, and is used to indicate immediate anomalies in the liquid supply process.

[0064] and These are the weighting coefficients for the three indicators, and the recommended initial value is set to... Users can dynamically adjust the values ​​of these three parameters based on on-site experience and actual working conditions through offline optimization or online learning mechanisms, but the parameters must always meet the requirements. .

[0065] To further capture the trend of the disturbance index over time, the system introduces a fusion trend gain function. Its definition is as follows:

[0066]

[0067] In this formula, The current cycle disturbance index compared to the previous one The average rate of change over several periods represents the slope of the overall disturbance trend of the system. Parameter For sliding window size, it is recommended to set it to [value]. It can be flexibly configured under different rinsing frequencies.

[0068] Finally, the system determines whether it has entered a state of abnormal debris accumulation based on the following judgment conditions:

[0069]

[0070] Where the threshold This serves as the benchmark for judging the intensity of disturbances, indicating that the internal disturbances of the system have significantly exceeded the normal range. This serves as the benchmark for trend judgment, indicating that the strengthening trend of the disturbance has reached a warning level. A recommended value can be set as follows: Alternatively, system engineers can make adjustments and optimizations based on historical operating data during the equipment commissioning period.

[0071] In summary, this functional unit integrates data from multiple sensors and employs standard deviation normalization, moving average processing, and differential trend detection techniques to form a highly sensitive debris aggregation identification mechanism with a low false alarm rate, providing strong dynamic support for the rational scheduling and resource optimization of flushing tasks.

[0072] The flushing instruction generation module 102 is used to receive the degree of debris accumulation and flushing demand intensity output by the operation status sensing module, and generate control instructions for controlling the start-up order, spray duration and target flow rate of multiple flushing nozzles according to preset priority rules and time window settings.

[0073] The flushing instruction generation module 102 receives status inputs such as the degree of debris accumulation and the intensity of flushing demand transmitted by the operating status sensing module, and automatically generates specific control instructions based on these inputs. The instructions include the start-up sequence of multiple flushing nozzles, the spraying duration of each nozzle, and the corresponding target flow rate value. This module constitutes the core decision-making unit connecting the sensing layer and the execution layer in the system. Its main function is to convert the sensing results into specific operable action parameters, ensuring that the flushing process is real-time, differentiated, and resource-efficient.

[0074] In actual operation, this module first analyzes the degree of debris accumulation received. The degree of accumulation is generally expressed as "low," "medium," or "high," or as a specific quantitative value (such as percentage or accumulation rate per unit time), corresponding to different levels of flushing strategies. The flushing demand intensity comprehensively considers indicators such as vibration change rate, pressure offset, and flow rate decrease, and determines whether the current system needs immediate flushing, delayed flushing, or maintenance of the current state through rule tables or hierarchical logic. The system is configured with a set of flushing priority rules by default. For example, when the crusher is in a high accumulation state and the briquetting machine's vibration shows a significant increasing trend, the flushing task for this path will be given higher priority and will be scheduled for execution in the next flushing cycle.

[0075] Building upon this, the module uses internally built-in time window management logic to slice the entire rinsing cycle. For example, a complete 20-minute operating window is divided into multiple 2-minute sub-windows, and the workload of each nozzle is allocated to different time periods based on the urgency of each task and the estimated execution time. Each control command consists of three key parameters: the nozzle start time, the duration of spraying, and the target flow rate of the cleaning liquid. The target flow rate can be correlated with the rinsing intensity level through a lookup table, typically set using a numerical range, such as 3 liters per minute for low-intensity rinsing, 5 liters per minute for medium-intensity, and 8 liters per minute for high-intensity. The system also supports dynamic adjustment, that is, fine-tuning the flow rate target based on the current actual output capacity of the water pump and the effect of the previous rinsing.

[0076] In addition, the module has the ability to reasonably arrange the concurrency relationship between tasks. If multiple nozzles are located downstream of the same flushing branch, there may be hydraulic interference or flow competition. In order to avoid the main pump pressure fluctuation caused by parallel flushing, the flushing command generation module will combine the fluid distribution structure to perform conflict detection on the command set, automatically insert reasonable interval timing, or adopt a staggered start strategy to keep the system in steady state operation.

[0077] To further enhance system safety, this module also incorporates command interaction logic with the anti-flying debris linkage module. When a control command for a nozzle is detected to contain high-speed jetting or high-pressure flushing characteristics, the module generates a pre-locking mechanism. This mechanism first suspends the nozzle's activation, waiting for the flexible cover closure completion signal from the anti-flying debris linkage module before releasing the pre-lock and allowing the jetting command to take effect. This prevents high-pressure flushing from occurring before protection is in place, ensuring the safety of personnel and equipment.

[0078] The output of the flushing instruction generation module is sent to the controller, such as a PLC or edge computing terminal, in the form of structured data packets. These packets contain the numbers, timestamps, durations, target flow rates, and whether the nozzles to be executed are set to controlled start status. After each update of the control instructions, the system retains the previous round of instructions and execution results for feedback optimization in the next cycle. All configuration parameters can be set and retrieved in the host computer interface, allowing operators to adjust the flushing strategy or preset rules according to actual needs.

[0079] In summary, the flushing instruction generation module 102 is structurally composed of a state parsing unit, a rule matching engine, a time window scheduler, and an output interface. Functionally, it undertakes multiple key roles such as state interpretation, priority decision-making, instruction generation, task coordination, and protection linkage. It can efficiently and accurately manage the dynamic operation of the multi-nozzle system and provide strong intelligent control support for the entire multi-stage flushing process.

[0080] Furthermore, the flushing instruction generation module is specifically used for:

[0081] After receiving the debris accumulation level and flushing demand intensity output by the operation status sensing module, the initial set of nozzles to be started is determined based on the current flushing demand intensity, and the structural information of the liquid supply pipeline where each nozzle is located is identified, including the liquid supply branch to which it belongs, the branch length, and the fluid connection relationship of whether it shares the main section.

[0082] For each nozzle, the proportion of the shared main section length on the liquid supply path between it and other nozzles is analyzed, and a nozzle flow interference matrix is ​​established based on this. The interference weight value between any two nozzles in the nozzle flow interference matrix is ​​calculated based on the degree of overlap of their liquid supply paths and compared with the maximum flow rate that the current main pump outlet pressure can bear.

[0083] Using the nozzle flow interference matrix as input, and following the principle that the maximum interference weight does not exceed a set threshold, nozzles are grouped to ensure that no member of each group of nozzles causes instantaneous flow exceeding the limit on the liquid supply path, thus constructing a batch-executed nozzle scheduling sequence.

[0084] For each group of nozzles after grouping, the minimum interval time is dynamically calculated based on the backflow pressure recovery time during the previous flushing process, and the minimum interval time is inserted into the nozzle scheduling sequence to ensure that the start-up interval between each group of nozzles can maintain the pressure stability of the liquid supply system.

[0085] While generating control commands that include nozzle start-up sequence, spray duration, and target flow rate, the nozzle scheduling sequence and interval time are written into the control parameters and output to the multi-level flushing execution module to ensure that the flow rate will not be unbalanced due to pipeline hydraulic interference when the multiple nozzles are started in stages, thereby completing the control command construction process of the flushing command generation module.

[0086] In the multi-stage flushing and anti-shaving integrated system of the metal cutting briquetting machine, the function of the flushing command generation module is not limited to responding to the degree of debris accumulation and the intensity of flushing demand provided by the operation status sensing module and issuing control signals. On this basis, it further has a complex hydraulic scheduling capability. Its role is to ensure that multiple flushing nozzles can achieve efficient, graded and non-interfering cleaning actions under the premise of limited pipeline liquid supply resources. Especially when facing the limited capacity of the main liquid supply section and the high pressure of multiple nozzles, it can still achieve a balance between the overall flushing efficiency and hydraulic stability of the system.

[0087] Specifically, after receiving information on the degree of debris accumulation and the intensity of flushing demand from the operating status sensing module, the flushing command generation module first performs a comprehensive analysis of the current system status. The system categorizes flushing demand intensity into three levels: low, medium, and high. Each level corresponds to a different number and location of nozzles to be activated. For example, if the flushing demand intensity is high, the initial set to be activated will include multiple high-pressure nozzles covering key areas such as the briquetting machine outlet, the chip removal channel, and the lower platform of the crusher. These nozzles will be assigned numbers or addresses according to a preset mapping relationship for use by subsequent scheduling logic.

[0088] After obtaining the set of nozzles to be activated, the system needs to further identify the supply pipeline structure connected to each nozzle. Since the entire flushing system may cover multiple areas, its supply system is not a simple parallel or series connection, but rather has a multi-level branch structure. The main supply pipeline (main section) serves as the central supply bus, with various branch pipes distributed in different cleaning areas. The flushing instruction generation module parses the supply path of each nozzle, identifies its corresponding supply branch, and marks the branch's length, branch point location, and whether it shares the main section with other nozzles, thereby constructing a complete pipeline structure mapping table.

[0089] Based on the above mapping information, the system analyzes the overlap relationship of the fluid supply paths between each pair of nozzles. For any two nozzles i and j, the ratio of their shared main section length in the fluid supply path to their respective total fluid supply path length is calculated, and a two-dimensional matrix is ​​generated accordingly to express the degree of coupling between each nozzle pair in the hydraulic supply path. This matrix is ​​referred to as the nozzle flow interference matrix in this specification, and its matrix elements... Defined as the ratio of the length of the main section shared by nozzle i and nozzle j in the liquid supply path, multiplied by a system-defined pressure sensitivity coefficient, which is adjusted based on the real-time outlet pressure capacity of the water pump and the pressure drop rate that occurred during historical operation.

[0090] The purpose of constructing the nozzle flow interference matrix is ​​to identify which nozzles might cause hydraulic conflicts when started simultaneously. For example, if two nozzles almost completely share a main pipe section in their fluid supply path and both have high spray flow rates, their simultaneous start-up may cause a significant drop in main pipe pressure, leading to decreased cleaning efficiency and even equipment instability. To avoid this, the flushing command generation module introduces a nozzle grouping strategy. During the grouping phase, the system groups nozzles according to the weight values ​​in the nozzle flow interference matrix, ensuring that the interference weight values ​​of any two nozzles in the same group do not exceed a preset threshold β. This threshold β is the upper limit of the maximum instantaneous flow interference intensity that the system can withstand, and is generally obtained through pressure recovery testing. For example, when β is set to 0.3, it means that the overlap ratio between the fluid supply paths of simultaneously started nozzles should not exceed 30%.

[0091] Through the aforementioned matrix operations and threshold constraints, the flushing command generation module divides all nozzles to be started into several groups. Nozzles within each group can be started concurrently within one flushing cycle without causing a significant pressure drop in the liquid supply system. A staggered startup strategy must be implemented between groups. To ensure the safety of staggered startup between groups and the stable recovery capability of the liquid supply system, the system determines a backflow pressure recovery time T after analyzing historical data. This time represents the minimum buffer time required for the current main pump to recover to a stable pressure state after completing the flushing of a group of nozzles.

[0092] The system inserts this minimum interval time T into the nozzle scheduling sequence, ensuring that subsequent nozzle groups wait for T time after the previous group has finished flushing before starting. This T value is not a fixed parameter but is dynamically adjusted based on actual observations of the pump pressure response curve. For example, during continuous high-pressure flushing, if the system detects that the backflow pressure recovery time has increased to 1.8 seconds, the minimum interval time T of the subsequent scheduling sequence will also be extended accordingly to prevent repeated pressurization in the unrecovered state from causing pump fatigue or abnormal flow.

[0093] Finally, the flushing instruction generation module, based on the aforementioned nozzle grouping and scheduling sequence, and combined with the flushing demand intensity level provided by the operation status sensing module, generates a control instruction for each nozzle containing three parameters: activation sequence, spray duration, and target flow rate. This instruction, along with the minimum interval between groups, constitutes a complete multi-nozzle flushing control instruction set, which is then sent to the multi-level flushing execution module for execution. During execution, if the system detects that the flexible cover is not yet closed, the nozzles involved in high-speed flushing will be temporarily deactivated until a closing completion signal is received from the anti-flying chip linkage module, thus preventing metal chip splashing during spraying.

[0094] In summary, the flushing command generation module not only considers the traditional scheduling of flushing intensity and coverage, but also optimizes the configuration by combining multiple physical layer parameters such as fluid supply path structure, nozzle position dependence, and dynamic pressure recovery capability. This ensures that the system maintains high-efficiency cleaning performance while achieving dynamic and stable control of the hydraulic system. The core of this module lies in its construction of the nozzle flow interference matrix and the rational planning of the scheduling sequence. This breaks away from traditional fixed-time control or independent zone control, realizing concurrent nozzle avoidance control logic based on fluid path association. Its innovation lies in integrating complex hydraulic constraints into the scheduling process, resulting in significantly better technical performance than existing general control methods that do not consider path overlap and pressure drop.

[0095] Below is a specific example for your reference. Figure 3 Assume a metal cutting briquetting machine has six nozzles, numbered N1 to N6, distributed in different cleaning areas and supplied with liquid by a central high-pressure water pump. The liquid supply system consists of a main pipe and three branch pipes, wherein:

[0096] N1, N2, and N3 are connected to the liquid supply branch S1;

[0097] N4 and N5 are connected to the liquid supply branch S2;

[0098] N6 is connected separately to the liquid supply branch S3.

[0099] Supply branches S1 and S2 connect to the main pipe at distances of 2 meters and 3 meters from the pump outlet, respectively, while S3 branches off at a distance of 1.5 meters. The total length of the main pipe is 4 meters, and the maximum output flow rate of the current pump is 120 L / min.

[0100] Step 1: Constructing the liquid supply path information

[0101] The system reads the liquid supply path structure of each nozzle through the initialization configuration file, and obtains the following total liquid supply path length:

[0102] Total length of N1 path: 2 meters for main section + 1 meter for S1 section = 3 meters

[0103] Total length of N2 path: 2 meters for the main section + 1.5 meters for the S1 section = 3.5 meters

[0104] Total length of N3 path: Main section 2 meters + S1 section 2 meters = 4 meters

[0105] Total length of N4 path: 3 meters for the main section + 1 meter for the S2 section = 4 meters

[0106] Total length of N5 route: Main section 3 meters + S2 section 1.2 meters = 4.2 meters

[0107] Total length of N6 route: Main section 1.5 meters + S3 section 0.5 meters = 2 meters

[0108] Step 2: Calculate the nozzle flow interference matrix

[0109] If each nozzle shares a main pipe section with other nozzles, the shared length will be included in the interference weight calculation. The formula for calculating the interference weight is:

[0110]

[0111] in, It is a nozzle With nozzle Shared length on the main pipe;

[0112] It is a nozzle , The total length of the liquid supply path; The pressure drop sensitivity coefficient is set to 1.0 (it can be dynamically adjusted according to the actual system).

[0113] Example calculation:

[0114] W(N1, N2): Shared trunk segment length = 2 meters, total path lengths are 3 meters and 3.5 meters respectively, therefore

[0115]

[0116] W(N1, N4): N1 and N4 share a main segment of 2 meters, and their total path lengths are 3 meters and 4 meters respectively.

[0117]

[0118] Shared backbone The total path length is 3 meters and 2 meters, take the smaller value of 2 meters:

[0119]

[0120] Following this logic, the complete 6×6 flow interference matrix can be obtained as follows (symmetric matrix, unit is dimensionless):

[0121]

[0122] Step 3: Nozzle grouping processing

[0123] With the interference threshold set to β = 0.7, the system only allows pairwise interference weights between all nozzles within any given group. None are greater than 0.7. In the matrix:

[0124] N4 and N5 cannot run concurrently;

[0125] N6 cannot be used concurrently with any other nozzle;

[0126] The remaining pairwise combinations all satisfy .

[0127] To maximize concurrency and control total traffic while meeting threshold requirements, the following grouping method is adopted (any one is valid, but scheme A is recommended; scheme B can be used if a better fit with the established process sequence is required):

[0128] Option A (Recommended, maximizes initial concurrency and does not conflict with N4):

[0129] Group 1:

[0130] Group 2:

[0131] Group 3:

[0132] Option B (equivalent and legal, but N5 is executed separately):

[0133] Group 1:

[0134] Group 2:

[0135] Group 3:

[0136] Step 4: Interval time insertion calculation

[0137] The following provides Solution A (recommended) and its corresponding JSON. If Solution B is used, simply swap N5 and N4 in the first batch.

[0138] Scheduling sequence for Option A:

[0139] The first batch to be launched (Group 1): N1, N2, N3, N5

[0140] The durations are: N1 = 20 s, N2 = 15 s, N3 = 15 s, N5 = 20 s.

[0141] The target flow rates are: N1=20 L / min, N2=25 L / min, N3=25 L / min, N5=20 L / min (total instantaneous flow rate upper limit 90 L / min ≤ pump 120 L / min).

[0142] Waiting 2.0 seconds

[0143] Second batch start-up (Group 2): N4 duration: 20 s; target flow rate: 20 L / min

[0144] Waiting 2.0 seconds

[0145] Third batch of startups (Group 3): N6 duration: 20 s; target flow rate: 30 L / min

[0146] Corresponding JSON:

[0147] {

[0148] "schedule": [

[0149] {

[0150] "nozzles": ["N1", "N2", "N3", "N5"],

[0151] "duration": [20, 15, 15, 20],

[0152] "flow_rate": [20, 25, 25, 20]

[0153] },

[0154] { "delay": 2.0},

[0155] {

[0156] "nozzles": ["N4"],

[0157] "duration":

[20] ,

[0158] "flow_rate":

[20]

[0159] },

[0160] { "delay": 2.0},

[0161] {

[0162] "nozzles": ["N6"],

[0163] "duration":

[20] ,

[0164] "flow_rate":

[30]

[0165] } ]

[0167] }

[0168] This example starts with modeling the fluid supply structure, calculates the path interference weights between nozzles in detail, forms a nozzle grouping strategy through matrix construction and threshold judgment, and calculates the start interval by combining the system back pressure recovery time, so as to ensure that the system can perform multi-nozzle flushing while taking into account hydraulic safety and operating efficiency.

[0169] The anti-flying debris linkage module 103 is used to identify flushing tasks with a risk of high-speed spraying based on the spray duration and target flow rate output by the flushing command generation module, and drive the flexible cover to close before flushing begins. The flexible cover is installed above the briquetting machine to block metal debris that may splash during flushing, and sends a closing completion signal of the flexible cover to the flushing command generation module to control the relevant nozzles to start only after the flexible cover is fully closed.

[0170] The anti-flying debris linkage module 103 is used to identify the risk of flying debris during the rinsing process before the system performs the rinsing operation, and to promptly drive the flexible cover plate located above the briquetting machine to close when the risk reaches the set conditions, ensuring that metal debris is not splashed during high-speed rinsing and does not adversely affect the operating environment and equipment safety. This module maintains real-time communication with the rinsing command generation module, receiving the spray duration and target flow rate parameters sent by it, as the basis for determining whether the rinsing task belongs to the high-speed spray category. Under normal circumstances, when the spray duration exceeds the preset upper limit (e.g., more than 5 seconds) or the target flow rate reaches the high-intensity threshold (e.g., more than 8 liters per minute), the anti-flying debris linkage module marks the task as having a high-speed rinsing risk and automatically triggers the flexible cover plate closing preparation process.

[0171] The flexible cover is a movable shielding structure made of elastic composite materials or flexible metal plates. It is fixedly installed on the top of the briquetting machine and connected to an electric push rod or cylinder drive device via a four-bar linkage or guide rail mechanism. Upon receiving a closing command, the drive device quickly starts, causing the cover to complete the rotation, sliding, or folding motion from the open state to the fully shielded state within a limited time. The cover design must cover all open surfaces above the briquetting machine hopper or nozzle area where debris may escape, and maintain no obvious gaps between it and the equipment casing after closing to achieve complete sealing. To avoid false triggering, the system will reconfirm whether the injection parameters of the current task are still within the high-risk threshold before executing the action, and perform a secondary verification based on the real-time flow data fed back by the execution module.

[0172] After the flexible cover completes its movement, its position sensor sends a closing completion signal to the anti-dust linkage module. This signal can be generated by a magnetic induction switch, photoelectric sensor, or travel limiter, indicating that the cover has entered the preset fully closed position. Upon receiving this signal, the anti-dust linkage module sends an unlocking command to the flushing command generation module, allowing the previously delayed high-pressure nozzle activation command to proceed. High-risk nozzles in the system will only be activated after the flexible cover is fully closed to prevent safety hazards caused by starting spraying before physical isolation protection is established.

[0173] In some cases, if the flexible cover fails to close within the specified time, such as due to a jammed drive mechanism or a delayed sensor response, the anti-dust linkage module will immediately interrupt the current high-pressure jetting task's execution process and mark this state as incomplete. Simultaneously, an alarm will pop up on the operating interface, requiring manual inspection and intervention. This mechanism ensures that a reliable safety barrier is established before all flushing tasks are executed.

[0174] In addition, the anti-dust linkage module can record the start and end times, completion status, and trigger source of each cover plate action, and periodically upload them to the control system backend as an operation log. This information can be used not only for system maintenance and operational efficiency evaluation, but also as an important basis for subsequent scheduling optimization and adjustment of spray risk level thresholds.

[0175] In summary, the anti-flying debris linkage module 103 achieves a high degree of linkage between the rinsing task and the physical protection action, ensuring that the high-pressure spray of the rinsing nozzle is only executed under the condition that the flexible cover is completely blocked. This not only improves the safety of system operation, but also meets the strict requirements of high-standard workshops for debris control during cleaning operations.

[0176] Furthermore, the anti-flying debris linkage module is specifically used for:

[0177] After receiving the control command containing the nozzle start sequence output by the flushing command generation module, the current closing state of the flexible cover is first determined by a multi-channel judgment. The multi-channel judgment includes simultaneously reading the real-time feedback values ​​of the stroke sensor and magnetic position sensor corresponding to the flexible cover.

[0178] When the feedback value of the travel sensor indicates that the flexible cover has reached the preset closing limit position, and the feedback value of the magnetic position sensor confirms that the flexible cover has maintained a stable closure at the limit position for a duration that reaches a set threshold, the flexible cover is determined to be in a closed state.

[0179] After determining that the flexible cover is in the closed state, the corresponding nozzle start command in the control command is written into the command queue to be executed, and the high-speed injection execution channel corresponding to the nozzle is started.

[0180] If either of the two sensors fails to meet the closure completion determination condition, the start command corresponding to the nozzle will be delayed and marked as a restricted task.

[0181] During the restricted task waiting period, the cover plate closure status is continuously monitored, and a maximum waiting time threshold is set. If the closure is not completed within the time limit, the task corresponding to the nozzle is recorded as a protection failure task and an alarm signal is output. At the same time, the remaining tasks of the flushing group to which the nozzle is located are frozen, and the flushing task scheduling of all subsequent nozzles is suspended until the anti-dust linkage module completes the fault state reset.

[0182] In the multi-stage flushing and anti-shavings integrated system for metal cutting briquetting machines proposed in this invention, the anti-shavings linkage module, as a key control component ensuring personnel safety and equipment operational stability, primarily functions to rigorously verify the closure status of the protective mechanism—the flexible cover—before executing the high-speed flushing nozzle action. It ensures the cover is fully closed and stable before allowing flushing operations, effectively preventing metal debris from splashing into the operating area or damaging external structural components due to the impact of high-speed liquid flow. The module's design incorporates sensor redundancy, safety interlocking mechanisms, task status marking, abnormal waiting control, and fault recovery paths, guaranteeing the overall robustness and reliability of the system.

[0183] In its operation, the anti-flying debris linkage module first receives control commands from the flushing command generation module. These commands clearly specify the activation sequence and conditions for each flushing nozzle, including nozzle identification number, target flow rate, spray duration, and corresponding action execution signals. Upon receiving these commands, the first step of the anti-flying debris linkage module is to determine the current closure status of the flexible cover. This determination does not rely solely on a single sensor signal but employs a multi-channel judgment method with dual sensors to improve accuracy and mitigate the risk of false triggering. This multi-channel judgment specifically includes reading real-time feedback signals from stroke sensors and magnetic position sensors located at both ends or appropriate positions of the flexible cover. The stroke sensors detect whether the flexible cover has physically reached the mechanically defined closure limit position, while the magnetic position sensors further confirm whether the flexible cover remains stably in this limit position and whether there is mechanical rebound or abnormal vibration, ensuring not only "in place" but also "stable closure."

[0184] The system collects and records the feedback voltage or status values ​​of the stroke sensor and magnetic position sensor in real time, evaluating whether the signals of these two sensors meet the closure completion judgment conditions in each detection cycle. If the feedback from the stroke sensor indicates that the cover has reached the preset closing limit position (e.g., the micro-motion signal of the detection head press-in reaches above 1.2 V or the break contact state is closed), and at the same time, the signal of the magnetic position sensor is stably maintained at this position for more than a set threshold time (e.g., the position error fluctuation does not exceed 0.1 mm within 3 seconds or the magnetic field strength remains within a specified range), then the system considers the flexible cover to be in a closed state. At this time, the anti-dust linkage module executes the next action, writing the start command related to the current nozzle in the original control command into the internal pending command queue, and immediately wakes up or enables the high-speed injection execution channel bound to the nozzle. This execution channel can be a signal path that directly drives the solenoid valve to open, or it can be an action allow variable in the PLC control logic, so that the actual nozzle injection device receives the allow execution command, thereby starting the high-pressure liquid injection process.

[0185] If, during the aforementioned judgment process, the feedback value of any sensor fails to meet the criteria for a completed closure state—for example, the stroke sensor fails to reach the set closed position, the magnetic sensor signal fluctuates excessively, or the stabilization time is insufficient—the system will not allow the nozzle to start. In this case, the anti-dust linkage module will temporarily suspend the start command corresponding to that nozzle and mark it specially in the task list as a "restricted task." This marking not only serves to remind the system logic of subsequent processing but also provides support for debugging personnel to identify the currently obstructed action in the system monitoring interface.

[0186] After a nozzle is marked as a restricted task, the system does not immediately abandon or delete it, but instead enters a waiting and retry process. During this period, the system continues to read the real-time feedback status of the travel sensor and magnetic position sensor at the originally set periodic frequency, attempting to detect whether the flexible cover has returned to a normal closed state. Meanwhile, to avoid the system entering an infinite waiting state due to equipment malfunction or cover jamming, the anti-dust linkage module has a maximum waiting time threshold, such as 10 seconds or 30 seconds. If the cover closure is detected within this threshold, the system automatically removes the restricted task mark and continues to start the nozzle; conversely, if the cover closure is not detected after the waiting time threshold, the anti-dust linkage module records the task corresponding to the current nozzle as a "protection failure task".

[0187] After a task is recorded as a protection failure, the system immediately outputs an alarm signal. This signal can manifest as a local LED flashing, a buzzer alarm, an HMI screen alarm prompt, or a remote monitoring system alarm report. Simultaneously, it freezes the remaining tasks in the flushing group containing the affected nozzle to prevent overall protection failure or debris splashing due to other nozzles continuing to perform flushing tasks. Freezing the remaining tasks in the flushing group specifically means that the system automatically determines the flushing sequence group to which the currently restricted task belongs (constructed by the flushing command generation module), marks all unexecuted nozzle tasks in that group as suspended, and blocks the group's identifier in the scheduling logic to prevent it from participating in subsequent automatic task selection or flow scheduling decisions.

[0188] Furthermore, to ensure overall system consistency and prevent multi-point failures from spreading to other parts of the system, the anti-dust linkage module automatically suspends the flushing task scheduling of all nozzles that have not yet been started after a protection failure occurs, until the module completes a fault state reset. A fault state reset specifically refers to a manual reset signal triggered by the operator on the control interface, or an automatic reset triggered by logic after the system detects that the sensor status has returned to normal. Before the reset is complete, the system logic is in a protected locked state, rejecting all requests to execute high-speed spray actions.

[0189] In summary, this embodiment provides a complete closed-loop control logic that combines multi-sensor fusion judgment, task delay and marking mechanisms, protection failure recording, and cascading freeze mechanisms. This not only significantly improves the protective reliability of the flexible cover before spraying but also enhances system stability and user operability through refined task management logic and anomaly handling paths. Furthermore, all judgment conditions, marking conditions, alarm outputs, and scheduling freeze actions in this control path can be flexibly configured through parameter settings to ensure adaptability to different equipment layouts, different flushing rhythms, and protection level requirements.

[0190] The following is a specific implementation example. When the flushing task is initiated, the flexible cover F1 corresponding to nozzle S1 is equipped with a stroke sensor and a magnetic position sensor, both with a sampling period of 100 milliseconds. The system's closure completion judgment threshold is set as follows: the stroke sensor detects a "closed" state, and the analog voltage signal of the magnetic position sensor remains within a stable range of 2.5V ± 0.05V for more than 3000 milliseconds. When nozzle S1 is ready to execute, the anti-dust linkage module detects that the stroke sensor state is "closed." The initial value of the magnetic position sensor is 2.45V, which remains stable at 2.51V for 1 second and is maintained for 4 seconds before the system determines that it has reached the "closure completion state." Subsequently, nozzle S1 is authorized to start, its start command enters the command queue, and drives the nozzle solenoid valve to power through the relay signal channel, initiating spraying.

[0191] Conversely, if the stroke sensor displays a normal status, but the magnetic position sensor's stable range is insufficient, with fluctuations exceeding ±0.1V and persisting for more than 10 seconds without improvement, the system determines that the flexible cover has not closed completely. It marks the task corresponding to nozzle S1 as a "protection failure task," the alarm LED flashes red, the control interface displays an "F1 protection abnormality" alarm, and freezes the tasks of nozzles S2, S3, and S4 in the group containing S1 (let's say G1). Simultaneously, the pre-scheduling logic for groups G2 and G3 is paused. After the operator clears the fault and clicks the reset button, the system confirms that the sensor status has recovered, unlocks the sensor, restores the task queue, and restarts the control process.

[0192] The multi-stage flushing execution module 104 is used to drive multiple nozzles to start in stages according to the control command. Each nozzle sprays cleaning liquid according to the corresponding duration and target flow rate, and receives a closing completion signal from the anti-dust linkage module in real time during the cleaning process to ensure that all nozzles involved in high-speed flushing only operate when the flexible cover is in the closed state.

[0193] The multi-stage flushing execution module 104 is responsible for translating the control commands issued by the flushing command generation module into specific nozzle actions, completing the debris cleaning operation in each target area, and ensuring that the cleaning process is carried out in a safe and controllable state through a signal interaction mechanism with the anti-flying debris linkage module. This module directly controls multiple flushing nozzles installed in key parts such as the crusher, chip conveyor, and briquetting machine. Each nozzle can be individually configured with parameters, including its start time, spray duration, and cleaning fluid flow rate per unit time. The nozzles are connected to the main liquid supply pipeline and receive pressurized liquid from the water pump under the control of solenoid valves or pneumatic angle seat valves, and complete the cleaning task in a set manner.

[0194] In practice, the module activates the corresponding nozzles sequentially or in parallel based on the nozzle number, start time, end time, and target flow rate included in each set of control commands, employing methods such as sequential control, group control, or pulse control. To ensure precise and controllable spray duration, the execution module integrates a high-resolution timer and feedback monitoring loop, capable of opening or closing a nozzle channel within milliseconds. Furthermore, the module supports real-time adjustment of spray intensity, controlling the pressure entering the nozzle via a proportional valve or the water pump speed via frequency converter control, thereby matching the cleaning intensity requirements of different areas.

[0195] During the cleaning process, this module continuously monitors the closing completion signal from the anti-dander linkage module. For nozzles marked for high-speed flushing tasks, their execution commands remain in a waiting state until the cover closure status is confirmed. Only once a signal indicating that the flexible cover is fully closed is detected is the nozzle allowed to begin spraying. If no cover closure signal is received within the specified time, the system will automatically skip the nozzle's execution action and record this status as a safety interlock unreleased event, preventing accidental triggering of high-pressure flushing under unprotected conditions and ensuring a safe operating environment.

[0196] The module also has fault identification and dynamic adjustment functions. When the nozzle malfunctions during operation, such as insufficient liquid output, delayed opening, or deviation of the execution time from the preset value, the execution module can detect the actual operating status through a flow meter or pressure sensor, determine the fault level in combination with the set threshold, and take measures according to the specific situation, such as early shutdown, forced stop, or switching to the backup nozzle channel. The abnormal status is also uploaded to the host computer interface in real time for easy viewing and maintenance by the operator.

[0197] In long-cycle operation scenarios, to prevent waste of flushing water resources and system overload, the multi-level flushing execution module also works in coordination with the control system to support a regional rotation execution mechanism. For example, by setting a periodic rotation matrix, nozzles in different areas can complete flushing in stages in sequence, avoiding excessive load on the main pump or instability of the hydraulic system caused by all nozzles being turned on at the same time.

[0198] Through the aforementioned mechanism, the multi-level flushing execution module 104 not only achieves nozzle-level zone management, fine control, and flow regulation, but also ensures the safety of high-risk tasks through closed-loop signal control with the anti-dross module, effectively improving system flushing efficiency and operational stability. In terms of hardware configuration, this module can be deployed near various devices using a distributed I / O control approach, connecting to the main control PLC via an industrial bus. It possesses good environmental adaptability and ease of maintenance in the field, making it suitable for integrated applications of complex flushing systems with multiple machines operating collaboratively.

[0199] Furthermore, the multi-stage flushing execution module also includes a dynamic nozzle adjustment mechanism based on flow feedback, specifically used for:

[0200] After executing the control command output by the flushing command generation module, which includes the nozzle start-up sequence, real-time liquid discharge rate data of the micro flow sensor is collected at a set position at the nozzle front end according to the target flow rate value of the corresponding nozzle in the control command.

[0201] The real-time liquid discharge rate data is compared with the target flow rate value of the corresponding nozzle to calculate the instantaneous deviation ratio;

[0202] When the absolute value of the instantaneous deviation ratio exceeds a set threshold, a dynamic adjustment command is output based on the instantaneous deviation ratio. The dynamic adjustment command is used to control the opening degree of the solenoid valve or the driving frequency of the main pump associated with the nozzle flow rate, so as to reduce the deviation between the current nozzle liquid discharge rate and the target flow rate value.

[0203] Within a preset time period after the implementation of the dynamic adjustment command, the real-time liquid flow rate data of the micro flow sensor set at the nozzle front end is re-acquired, and the adjustment gain is calculated based on the change in liquid flow rate before and after adjustment. The adjustment gain is then used for parameter preset or rapid calibration before subsequent nozzle startup.

[0204] Based on the adjustment gain, a mapping table is constructed between the nozzle number and the corresponding control variables. The control variables include the solenoid valve opening percentage or the main pump drive frequency value. The mapping table is stored in the parameter cache area of ​​the flushing task scheduling module for rapid matching and deviation compensation of the start-up control strategy of the same nozzle in the next flushing task.

[0205] The multi-stage flushing execution module includes a dynamic nozzle adjustment mechanism based on flow feedback. Its core purpose is to monitor the actual liquid output rate of the nozzles in real time during the flushing process and dynamically adjust control parameters based on deviations from the expected flow rate, thereby ensuring stable and uniform spraying and improving flushing efficiency and the responsiveness and reliability of the hydraulic system. This mechanism combines a front-end micro-flow sensor, a solenoid valve or main pump drive system, and a control logic processing unit to form a closed-loop feedback control system, exhibiting high real-time performance and intelligence.

[0206] When the flushing task begins, the control system activates the nozzles one by one according to the specified nozzle activation sequence, based on the control commands output by the flushing command generation module. Simultaneously with nozzle activation, the system retrieves the target flow rate value corresponding to that nozzle. This target value is typically calculated in advance during the scheduling process, taking into account factors such as debris distribution density, flushing level requirements, nozzle diameter, and pressure model. Subsequently, the system collects real-time liquid flow rate data from the nozzle at a miniature flow sensor located at the front end of the nozzle's liquid outlet channel. This sensor must have rapid response capabilities and high resolution, capable of stable sampling at a frequency of at least 10Hz, and sends the sampled values ​​to the control logic processing unit.

[0207] After acquiring the current nozzle discharge rate, the system directly compares this real-time rate with the target flow rate of the nozzle to obtain the deviation ratio. The deviation ratio is calculated as follows: Deviation Ratio = (Current Discharge Rate - Target Flow Rate) / Target Flow Rate. When the absolute value of the deviation ratio is less than the system's set tolerance threshold (e.g., 10%), the system considers the current spraying status as acceptable and continues to execute the remaining flushing tasks; however, if the absolute value of the deviation ratio exceeds the set threshold, it is considered that the current spraying has a problem of insufficient or excessive flow.

[0208] In the event of a deviation exceeding the limit, the system will automatically generate a dynamic adjustment command. The composition of the adjustment command depends on the control method connected to the specific nozzle. If the nozzle's fluid control is by a solenoid valve, the adjustment command will output a new solenoid valve opening percentage value based on the deviation ratio. If the branch connected to the nozzle is supplied by a main pump, the adjustment command will be converted into a fine adjustment of the main pump's drive frequency. This adjustment behavior requires the system to automatically determine whether to increase or decrease the flow rate based on the direction of the error, and to set the adjustment range based on parameters such as nozzle diameter, liquid viscosity, and supply pressure characteristics.

[0209] After the adjustment is executed, the system re-collects the nozzle's outlet flow rate within a set delay period, typically 0.5 to 2 seconds, to ensure sufficient response buffer time. Then, the difference in rate change before and after the adjustment is used as the numerator, and the adjustment amplitude as the denominator, to calculate the adjustment gain, which reflects the sensitivity of the current control variable to the nozzle flow rate. This gain value is a key indicator for quantifying the feedback adjustment effect, used for initial value estimation when the same nozzle is restarted in the next round, and also for constructing empirical control models.

[0210] As the system performs multiple rounds of adjustment feedback operations on each nozzle, it gradually accumulates adjustment records for different nozzles under different target flow conditions. These records are indexed by nozzle number to form a mapping table. Each entry in the table records the control variable value required for that nozzle to achieve precise injection at a specific target flow value, such as the solenoid valve being set to 65% opening or the main pump frequency being 48Hz. This entry may also include adjustment gain values ​​and deviation trend directions for subsequent prediction-based compensation operations.

[0211] This mapping table is ultimately stored in the parameter cache within the system controller. When the next flushing task arrives, the scheduling system will prioritize reading this cached content and match it with the nearest historical records based on the current target flow rate value. This provides initial control parameter presets for nozzle startup, significantly reducing the adjustment cycle caused by the first sampling error. Simultaneously, if the historical adjustment gain of the matched value is small, the system can also predict the risk of adjustment behavior and pre-set a more conservative initial threshold range to prevent oscillations.

[0212] This feedback closed-loop mechanism not only significantly improves the execution accuracy and stability of flushing tasks, but also effectively overcomes the problem of inconsistent spraying effects caused by factors such as pressure fluctuations, liquid temperature changes, or nozzle orifice errors in the traditional fixed opening control mode.

[0213] Furthermore, the multi-stage flushing and anti-chip integrated system for the metal cutting briquetting machine also includes:

[0214] The flushing fluid recovery and purification module is used to collect the sludge containing metal fragments generated during the flushing process. It then passes through a filter to remove large particles of impurities, followed by sedimentation to remove fine suspended solids. The cleaned liquid is then returned to the supply pipeline. The actual volume of the recovered liquid and the time required for purification are fed back to the operation status sensing module to adjust the pump runtime and waiting interval for the next flushing task.

[0215] In the multi-stage flushing and anti-chip integrated system for metal cutting briquetting machines described in this invention, the flushing fluid recovery and purification module, as a crucial component of the system, undertakes the core functions of recycling flushing fluid resources and post-flushing treatment. This module is located at the flushing fluid discharge end of the system or in the liquid collection area at the bottom of each piece of equipment, and forms a closed-loop connection with the main fluid supply system via pipelines. Its main function is to collect, treat, and reuse the wastewater containing metal chips, oil, and other impurities flowing from the surfaces of equipment such as crushers, chip conveyors, and briquetting machines after the flushing operation is completed.

[0216] The entire recovery and purification process typically begins with primary filtration. The system features replaceable filter cartridges, metal mesh, or grid-type interceptors at the liquid return inlet to block larger diameter shavings and prevent them from entering subsequent equipment. These particles typically include metal fragments larger than 2 mm, elongated chips, and potentially detached seals, plastic impurities, etc. The physical interception by the primary filtration device prevents blockage of subsequent pipelines and protects the lifespan of the fine filtration and settling equipment.

[0217] The rinsing fluid after primary filtration is guided into a temporary sludge storage tank equipped with a volumetric buffer structure. Inside this tank, the liquid flow rate is significantly reduced to facilitate a second stage of gravity sedimentation separation. The sedimentation structure is typically designed as a horizontal or inclined multi-channel sedimentation tank, which extends the liquid residence time, allowing fine suspended metal dust, oil emulsions, and high-density particles to settle naturally. The system can optionally be equipped with a bottom spiral scraper to periodically collect deposited impurities and discharge them centrally from the sludge outlet. For even smaller particles with densities close to water, a weak flocculant can be added to enhance the coagulation and sedimentation effect; however, the structural design should ensure a high degree of automation and low maintenance frequency.

[0218] The relatively clean liquid that has completed settling flows into the clean liquid tank, where the liquid level is regulated and a closed-loop connection is formed with the main liquid supply line. The treated flushing liquid is then returned to the water pump inlet or a dedicated replenishment branch via a return pump. This return path supports automated valve control, ensuring that the purified liquid is used preferentially when the system performs a new flushing task, thereby reducing the amount of fresh water used and lowering operating costs.

[0219] To achieve intelligent feedback adjustment, the flushing fluid recovery and purification module also integrates two key detection units: a flow meter to count the actual volume of recovered liquid, and a timing module or level sensor to determine the total time required to complete purification. This data is sent in real-time to the operation status sensing module after each flushing cycle, allowing for dynamic adjustment of the time window and pump runtime for the next flushing task. For example, if a significant decrease in the amount of recovered wastewater is detected in a certain cycle, the system can determine that there is less residual debris in the flushing area and appropriately shorten the flushing time in the next round to reduce energy consumption. Conversely, if the recovered volume is large but the purification time is extended, the system is prompted to perform phased flushing load distribution or delay the start of the next batch of flushing tasks to avoid overloading the processing equipment.

[0220] The entire module has a compact structure, facilitating integration into existing briquetting machines or central liquid supply systems. It supports automatic cleaning operations in uninterrupted operating environments and can quickly interface with PLCs or industrial bus systems via a standard interface. The module materials should possess good corrosion resistance and wear resistance, suitable for long-term handling of working fluids containing oil and high concentrations of metal debris. Parameter settings and operating status for each component can be visualized and remotely adjusted via a host computer interface, allowing maintenance personnel to dynamically manage the flushing fluid quality and system operating efficiency.

[0221] Therefore, this rinsing fluid recovery and purification module not only improves the efficiency of cleaning fluid use and reduces water consumption and sewage burden, but also enhances the system's adaptive adjustment capability to rinsing behavior through a data closed-loop feedback mechanism, making it a key supporting component for achieving green manufacturing and intelligent operation.

[0222] In the above embodiments, a multi-stage flushing and anti-shaving integrated system for a metal cutting briquetting machine is provided. Correspondingly, this application also provides a multi-stage flushing and anti-shaving integrated control method for a metal cutting briquetting machine. Please refer to... Figure 2 This application also provides a flowchart of an embodiment of a multi-stage flushing and anti-shaving integrated control method for a metal cutting briquetting machine. Since this embodiment, namely the second embodiment, is basically similar to the first embodiment, it is described simply; relevant details can be found in the description of the first embodiment. The method embodiments described below are merely illustrative.

[0223] The second embodiment of this application provides a multi-stage flushing and anti-chip integrated control method for a metal cutting briquetting machine, including:

[0224] Step S201: During equipment operation, continuously collect the vibration amplitude of the crusher, chip conveyor and briquetting machine, the water pump outlet pressure and the flushing fluid flow rate. Based on the change amplitude of the data collected in multiple sampling periods, determine the degree of chip accumulation at the corresponding equipment and determine the current flushing demand intensity.

[0225] Step S202: Based on the degree of debris accumulation and the intensity of flushing demand, control instructions for multiple flushing nozzles are generated according to preset priority rules and time window settings. The control instructions include the start-up sequence, spray duration and target flow rate of each nozzle.

[0226] Step S203: Identify rinsing tasks with a risk of high-speed jetting in the control commands, and drive the flexible cover plate set above the briquetting machine to close before the task is executed in order to block metal debris that may splash during the rinsing process. After the flexible cover plate is closed, generate a cover plate closing completion signal and send the generated signal to the control logic used to control the nozzle execution.

[0227] Step S204: According to the control command, drive each flushing nozzle to start one by one or in groups in a graded sequence, so that the flushing nozzle sprays cleaning liquid at a set target flow rate within the corresponding duration. For nozzles with a risk of high-speed spraying, they can only be started after receiving the signal that the flexible cover plate has closed, so as to ensure that the spraying action is carried out in the closed state of the protective structure.

[0228] Although this application discloses preferred embodiments as described above, it is not intended to limit this application. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of this application. Therefore, the scope of protection of this application should be determined by the scope defined in the claims of this application.

Claims

1. A multi-stage flushing and anti-chipping integrated system for a metal cutting briquetting machine, characterized in that, include: The operation status sensing module is used to continuously collect the vibration amplitude, water pump outlet pressure and flushing fluid flow rate of the crusher, chip conveyor and briquetting machine during operation, and determine the degree of chip accumulation and flushing demand intensity based on the data change amplitude within multiple sampling periods. The flushing instruction generation module is used to receive the degree of debris accumulation and flushing demand intensity output by the operation status sensing module, and generate control instructions for controlling the start-up sequence, spray duration and target flow rate of multiple flushing nozzles according to preset priority rules and time window settings. The anti-flying debris linkage module is used to identify flushing tasks with a risk of high-speed spraying based on the spray duration and target flow rate output by the flushing command generation module, and drive the flexible cover to close before flushing begins. The flexible cover is installed above the briquetting machine to block metal debris that may splash during flushing, and sends a closing completion signal of the flexible cover to the flushing command generation module to control the relevant nozzles to start only after the flexible cover is fully closed. The multi-stage flushing execution module is used to drive multiple nozzles to start in stages according to the control command. Each nozzle sprays cleaning liquid according to the corresponding duration and target flow rate, and receives the closing completion signal from the anti-dust linkage module in real time during the cleaning process to ensure that all nozzles involved in high-speed flushing only operate when the flexible cover is in the closed state.

2. The multi-stage flushing and anti-chip integrated system for metal cutting briquetting machines according to claim 1, characterized in that, Also includes: The flushing fluid recovery and purification module is used to collect the sludge containing metal fragments generated during the flushing process. It then passes through a filter to remove large particles of impurities, followed by sedimentation to remove fine suspended solids. The cleaned liquid is then returned to the supply pipeline. The actual volume of the recovered liquid and the time required for purification are fed back to the operation status sensing module to adjust the pump runtime and waiting interval for the next flushing task.

3. The multi-stage flushing and anti-chip integrated system for metal cutting briquetting machines according to claim 1, characterized in that, The operation status perception module is specifically used for: When the vibration sensor installed on the crusher, chip conveyor and briquetting machine, the pressure sensor at the water pump outlet and the flow rate sensor in the main liquid supply pipeline are working continuously, they collect real-time data of vibration amplitude, water pump outlet pressure and flushing liquid flow rate according to the preset sampling frequency, and record the data of multiple consecutive sampling cycles in chronological order. Within each sampling period, the vibration amplitude is differentially calculated to obtain the change in vibration amplitude between the current period and the previous period; The difference between the maximum and minimum values ​​of the pump outlet pressure is used as the pump pressure fluctuation range for the current period. Divide the change in flushing fluid flow rate in the current cycle by the average value of the previous cycle to obtain the percentage decrease in flow rate in the current cycle. The vibration amplitude change, water pump pressure fluctuation amplitude and flow rate decrease ratio are compared with the corresponding benchmark values. When any two of the three exceed the first preset threshold corresponding to the set benchmark value, and at least one exceeds the second preset threshold, it is determined that the current state is in abnormal debris accumulation. Based on the duration of the abnormal debris accumulation and the percentage of the largest deviation from the baseline value among the three values, the current degree of debris accumulation is classified as mild, moderate, or severe, and the current flushing intensity is determined as low, medium, or high.

4. The multi-stage flushing and anti-chip integrated system for metal cutting briquetting machines according to claim 1, characterized in that, The flushing instruction generation module is specifically used for: After receiving the debris accumulation level and flushing demand intensity output by the operation status sensing module, the initial set of nozzles to be started is determined based on the current flushing demand intensity, and the structural information of the liquid supply pipeline where each nozzle is located is identified, including the liquid supply branch to which it belongs, the branch length, and the fluid connection relationship of whether it shares the main section. For each nozzle, the proportion of the shared main section length on the liquid supply path between it and other nozzles is analyzed, and a nozzle flow interference matrix is ​​established based on this. The interference weight value between any two nozzles in the nozzle flow interference matrix is ​​calculated based on the degree of overlap of their liquid supply paths and compared with the maximum flow rate that the current main pump outlet pressure can bear. Using the nozzle flow interference matrix as input, and following the principle that the maximum interference weight does not exceed a set threshold, nozzles are grouped to ensure that no member of each group of nozzles causes instantaneous flow exceeding the limit on the liquid supply path, thus constructing a batch-executed nozzle scheduling sequence. For each group of nozzles after grouping, the minimum interval time is dynamically calculated based on the backflow pressure recovery time during the previous flushing process, and the minimum interval time is inserted into the nozzle scheduling sequence to ensure that the start-up interval between each group of nozzles can maintain the pressure stability of the liquid supply system. While generating control commands that include nozzle start-up sequence, spray duration, and target flow rate, the nozzle scheduling sequence and interval time are written into the control parameters and output to the multi-level flushing execution module to ensure that the flow rate will not be unbalanced due to pipeline hydraulic interference when the multiple nozzles are started in stages, thereby completing the control command construction process of the flushing command generation module.

5. The multi-stage flushing and anti-chip integrated system for metal cutting briquetting machines according to claim 1, characterized in that, The anti-flying debris linkage module is specifically used for: After receiving the control command containing the nozzle start sequence output by the flushing command generation module, the current closing state of the flexible cover is first determined by a multi-channel judgment. The multi-channel judgment includes simultaneously reading the real-time feedback values ​​of the stroke sensor and magnetic position sensor corresponding to the flexible cover. When the feedback value of the travel sensor indicates that the flexible cover has reached the preset closing limit position, and the feedback value of the magnetic position sensor confirms that the flexible cover has maintained a stable closure at the limit position for a duration that reaches a set threshold, the flexible cover is determined to be in a closed state. After determining that the flexible cover is in the closed state, the corresponding nozzle start command in the control command is written into the command queue to be executed, and the high-speed injection execution channel corresponding to the nozzle is started. If either of the two sensors fails to meet the closure completion determination condition, the start command corresponding to the nozzle will be delayed and marked as a restricted task. During the restricted task waiting period, the cover plate closure status is continuously monitored, and a maximum waiting time threshold is set. If the closure is not completed within the time limit, the task corresponding to the nozzle is recorded as a protection failure task and an alarm signal is output. At the same time, the remaining tasks of the flushing group to which the nozzle is located are frozen, and the flushing task scheduling of all subsequent nozzles is suspended until the anti-dust linkage module completes the fault state reset.

6. The multi-stage flushing and anti-chip integrated system for metal cutting briquetting machines according to claim 1, characterized in that, The multi-stage flushing execution module also includes a dynamic nozzle adjustment mechanism based on flow feedback, specifically used for: After executing the control command output by the flushing command generation module, which includes the nozzle start-up sequence, real-time liquid discharge rate data of the micro flow sensor is collected at a set position at the nozzle front end according to the target flow rate value of the corresponding nozzle in the control command. The real-time liquid discharge rate data is compared with the target flow rate value of the corresponding nozzle to calculate the instantaneous deviation ratio; When the absolute value of the instantaneous deviation ratio exceeds a set threshold, a dynamic adjustment command is output based on the instantaneous deviation ratio. The dynamic adjustment command is used to control the opening degree of the solenoid valve or the driving frequency of the main pump associated with the nozzle flow rate, so as to reduce the deviation between the current nozzle liquid discharge rate and the target flow rate value. Within a preset time period after the implementation of the dynamic adjustment command, the real-time liquid flow rate data of the micro flow sensor set at the nozzle front end is re-acquired, and the adjustment gain is calculated based on the change in liquid flow rate before and after adjustment. The adjustment gain is then used for parameter preset or rapid calibration before subsequent nozzle startup. Based on the adjustment gain, a mapping table is constructed between the nozzle number and the corresponding control variables. The control variables include the solenoid valve opening percentage or the main pump drive frequency value. The mapping table is stored in the parameter cache area of ​​the flushing task scheduling module for rapid matching and deviation compensation of the start-up control strategy of the same nozzle in the next flushing task.

7. A multi-stage flushing and anti-chip-flying integrated control method for a metal cutting briquetting machine, characterized in that, include: During equipment operation, the vibration amplitude of the crusher, chip conveyor and briquetting machine, the water pump outlet pressure and the flushing fluid flow rate are continuously collected. Based on the change amplitude of the data collected in multiple sampling periods, the degree of chip accumulation at the corresponding equipment is judged and the current flushing demand intensity is determined. Based on the degree of debris accumulation and the intensity of flushing demand, control instructions for multiple flushing nozzles are generated according to preset priority rules and time window settings. The control instructions include the start-up sequence, spray duration and target flow rate of each nozzle. The system identifies rinsing tasks with a risk of high-speed jetting in the control commands, drives the flexible cover plate set above the briquetting machine to close before the task is executed, so as to block the metal debris that may splash during the rinsing process, and generates a cover plate closure completion signal after the flexible cover plate is closed and sends the generated signal to the control logic used to control the nozzle execution. According to the control command, each flushing nozzle is driven to start one by one or in groups in a graded sequence, so that the flushing nozzle sprays cleaning liquid at a set target flow rate within the corresponding duration. For nozzles with a risk of high-speed spraying, they can only be started after receiving a signal that the flexible cover has closed, so as to ensure that the spraying action is carried out in the closed state of the protective structure.

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