An open modular numerical control system
By introducing an open modular CNC system into the metal mold processing system, the humidity and static electricity level of the processing environment are detected and automatically adjusted, the static electricity accumulation problem caused by the increase in humidity during the metal mold processing is solved, and the processing accuracy and product are improved quality.
Patent Information
- Application Number
- CN202411407958.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2044-10-10
AI Technical Summary
During the process of metal mold processing, the heat generated leads to a significant increase in humidity, increasing the risk of static electricity accumulation, affecting processing accuracy and product quality.
An open modular CNC system is designed, including a humidity detection module, an electrostatic detection module, a comparison module and a first switching module. The system automatically controls the humidifier and electrostatic elimination equipment to adjust the humidity and electrostatic level of the processing environment by detecting the ambient humidity and electrostatic accumulation.
It effectively reduces static electricity accumulation, reduces interference to electronic equipment and sensors, and improves processing accuracy and product quality.
Smart Images

Figure CN118915865B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of mold processing, and in particular to an open modular numerical control system. Background Art
[0002] With the advancement of science and technology and the development of the manufacturing industry, the production demand for plastic particle building block toys has continued to increase, which has promoted the advancement of metal mold processing technology. However, the precision requirements in the metal mold processing process are getting higher and higher, which puts forward more stringent requirements on the mold processing environment. During the mold processing process, due to cutting, friction and other process factors, a large amount of heat is often generated, resulting in a significant increase in the humidity of the processing environment.
[0003] The increase in humidity will lead to a decrease in relative humidity. This dry environment will increase the risk of static electricity accumulation. The accumulation of static electricity will not only interfere with electronic processing equipment and sensors, but also affect their normal operation, further affecting the processing accuracy. Electrostatic discharge (ESD) may cause equipment malfunction, signal distortion, and even damage sensitive components, which will seriously affect the quality and consistency of the final product. Therefore, in the process of metal mold processing, how to control and manage the humidity and moisture of the processing environment and reduce static electricity accumulation has become an important issue to ensure processing accuracy and product quality. Summary of the invention
[0004] The main purpose of the present invention is to provide an open modular CNC system, which aims to solve the technical problem in the prior art that a large amount of heat is often generated during the metal mold processing process, resulting in static electricity accumulation, which interferes with electronic processing equipment and sensors, affects their normal operation, and thus affects the processing accuracy.
[0005] To achieve the above object, the present invention provides an open modular numerical control system, the system comprising: a humidity detection module, an electrostatic detection module, a comparison module and a first switch module;
[0006] Wherein, the humidity detection module is used to detect the ambient humidity in the processing environment of the mold, and convert the ambient humidity into a corresponding humidity electrical signal and output it to the comparison module;
[0007] The electrostatic detection module is used to detect the amount of static electricity accumulation in the processing environment of the mold, and convert the static electricity accumulation into a corresponding static electricity signal and output it to the comparison module;
[0008] The comparison module receives the electrical signals from the humidity detection module and the static electricity detection module and outputs them to the first switch module;
[0009] The comparison module is used to compare the humidity electrical signal and the static electrical signal with corresponding preset thresholds.
[0010] If the voltage value of the humidity electrical signal is lower than the preset humidity threshold lower limit, the first switch module outputs a first conduction signal value to start the humidifier to increase the humidity;
[0011] If the voltage value of the electrostatic electric signal is higher than the preset electrostatic threshold upper limit, the first switch module outputs a first conduction signal value to start the electrostatic elimination device to reduce the accumulation of electrostatic;
[0012] The first switch module is used to conduct the power supply connection between the power supply and the humidifier when receiving the first conduction signal.
[0013] Optionally, the system further includes: a collection module and a prediction module.
[0014] The acquisition module is used to acquire equipment operating parameters; equipment operating parameters include equipment feed speed, duration and processing material characteristics;
[0015] The prediction module is used to construct a linear regression model, and the linear regression model is trained by using the equipment operating parameters as input data to establish a temporal linear relationship between the equipment operating parameters and the amount of static electricity accumulation; the construction process of the linear regression model includes the following steps:
[0016] S1. Collect historical data of the system, including equipment operating parameters and static electricity accumulation in the corresponding time sequence;
[0017] S2. Preprocess the historical data, including data cleaning and normalization;
[0018] S3. Divide the preprocessed historical data into training set data and test set data; initialize the linear regression model and set model parameters, and use the training set data for training the linear regression model;
[0019] Use the test set data to optimize the model parameters;
[0020] S4. Input the newly collected equipment operating parameters into the trained linear regression model to obtain the model prediction result, that is, the static electricity accumulation amount corresponding to the time series.
[0021] Optionally, the system further comprises: a controller and a second switch module;
[0022] The controller receives the prediction result of the prediction module, calculates and dynamically adjusts the operation mode of the humidifier and the static elimination device according to the static electricity accumulation amount of the corresponding time sequence, so as to maintain the processing environment of the mold always within a stable range; the controller is respectively connected to the humidity detection module, the humidifier and the control end of the second switch module, the input end of the second switch module is respectively connected to the humidity detection module and the comparison module, and the output end of the second switch module is grounded;
[0023] The humidity detection module and the static electricity detection module are also used to output an electrical signal to the controller, and output a second conduction signal to the second switch module;
[0024] The second switch module is used to conduct the power connection between the humidity detection module and the ground when receiving the second conduction signal, so that the first switch module disconnects the power connection between the power supply and the humidifier.
[0025] Optionally, the system further comprises: a wireless communication module;
[0026] The wireless communication module is connected to the controller and the terminal device respectively;
[0027] The controller is further used to output a corresponding temperature and humidity display signal to the wireless communication module according to the corresponding voltage value of the humidity electrical signal and the voltage value corresponding to the humidity electrical signal;
[0028] The wireless communication module is used to send the temperature and humidity display signal to the terminal device by wireless transmission when receiving the temperature and humidity display signal, so that the terminal device can display the ambient humidity and the ambient humidity in the processing environment of the mold based on the temperature and humidity display signal.
[0029] Optionally, the system further comprises: a voltage dividing module and a voltage stabilizing module;
[0030] Wherein, the voltage dividing module is connected to the power supply and the voltage stabilizing module respectively, and the voltage stabilizing module is connected to the humidity detection module;
[0031] The voltage dividing module is used to divide the power supply voltage provided by the power supply to obtain a divided voltage, and send the divided voltage to the voltage stabilizing module;
[0032] The voltage stabilization module is used to stabilize the divided voltage and send the stabilized divided voltage to the humidity detection module;
[0033] The humidity detection module is also used to adjust the voltage-divided voltage after stabilization to obtain the humidity electrical signal.
[0034] Optionally, the humidity detection module includes: a first resistor, which is a thermistor;
[0035] The first end of the first resistor is connected to the power supply through the voltage stabilizing module and the voltage dividing module, and the second end of the first resistor is connected to the controller, the second switch module and the comparison module respectively.
[0036] Optionally, the comparison module includes: a first comparator;
[0037] The positive input terminal of the first comparator is connected to the second end of the first resistor and the second switch module, the negative input terminal of the first comparator is connected to a first preset reference power supply, and the output terminal of the first comparator is connected to the switch module.
[0038] Optionally, the switch module includes: a first switch tube and a second resistor;
[0039] Among them, the first end of the second resistor is connected to the power supply, the second end of the second resistor is connected to the input end of the first switch tube, the control end of the first switch tube is connected to the output end of the first comparator, and the output end of the first switch tube is connected to the humidifier.
[0040] Optionally, the second switch module includes: a second switch tube;
[0041] The input end of the second switch tube is respectively connected to the second end of the first resistor and the positive input end of the first comparator, the control end of the second switch tube is connected to the controller, and the output end of the second switch tube is grounded.
[0042] Optionally, the voltage dividing module includes: a third resistor and a fourth resistor, and the voltage stabilizing module includes: a first capacitor;
[0043] Among them, the first end of the third resistor is connected to the power supply, the second end of the third resistor is connected to the first end of the fourth resistor, the first end of the fourth resistor is also connected to the first end of the first resistor and the first end of the first capacitor, and the second end of the fourth resistor and the second end of the first capacitor are grounded.
[0044] The present invention provides an open modular numerical control system, which includes: a humidity detection module and a first switch module; wherein the humidity detection module is connected to the first switch module, and the first switch module is respectively connected to a power supply and a humidifier; the humidity detection module is used to detect the ambient humidity in the processing environment of a mold, and convert the ambient humidity into a corresponding humidity electrical signal and output it to the first switch module; the first switch module is used to turn on or off the power supply circuit connection between the power supply and the humidifier according to the voltage value of the humidity electrical signal, and the humidifier is used to humidify the processing environment of the mold when the power supply circuit connection is turned on, so that the humidity in the processing environment can be dynamically adjusted to reduce the static electricity accumulation caused by dry air, thereby effectively reducing interference to electronic equipment and sensors, and improving processing accuracy and product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0045] Figure 1 It is a structural schematic diagram of an embodiment of an open modular numerical control system of the present invention;
[0046] Figure 2 It is a structural schematic diagram of another embodiment of the open modular numerical control system of the present invention;
[0047] Figure 3 This is a circuit schematic diagram of the open modular numerical control system of the present invention.
[0048] Description of Figure Numbers:
[0049]
[0050] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0051] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.
[0052] Reference Figures 1 to 3 , the present invention proposes an open modular numerical control system, the system comprising: a humidity detection module 10, an electrostatic detection module 11, a comparison module 20 and a first switch module 30;
[0053] The humidity detection module 10 is used to detect the ambient humidity in the processing environment of the mold, and convert the ambient humidity into a corresponding humidity electrical signal and output it to the comparison module;
[0054] The static electricity detection module 11 is used to detect the amount of static electricity accumulation in the processing environment of the mold, and convert the static electricity accumulation into a corresponding static electricity signal and output it to the comparison module;
[0055] The comparison module 20 receives the electrical signals from the humidity detection module 10 and the static electricity detection module 11 and outputs them to the first switch module;
[0056] The comparison module 20 is used to compare the humidity electrical signal and the static electrical signal with corresponding preset thresholds.
[0057] If the voltage value of the humidity electrical signal is lower than the preset humidity threshold lower limit, the first switch module outputs a first conduction signal value to start the humidifier to increase the humidity;
[0058] If the voltage value of the electrostatic electric signal is higher than the preset electrostatic threshold upper limit, the first switch module outputs a first conduction signal value to start the electrostatic elimination device to reduce the accumulation of electrostatic;
[0059] The first switch module 30 is used to conduct the power supply connection between the power supply and the humidifier when receiving the first conduction signal.
[0060] The system further comprises: a collection module 21 and a prediction module 22,
[0061] The acquisition module 21 is used to acquire equipment operating parameters; the equipment operating parameters include the equipment's feed speed, duration, and processing material characteristics;
[0062] The prediction module 22 is used to construct a linear regression model, and the linear regression model is trained by using the equipment operating parameters as input data to establish a temporal linear relationship between the equipment operating parameters and the amount of static electricity accumulation; the construction process of the linear regression model includes the following steps:
[0063] S1. Collect historical data of the system, including equipment operating parameters and static electricity accumulation in the corresponding time sequence;
[0064] S2. Preprocess the historical data, including data cleaning and normalization;
[0065] S3. Divide the preprocessed historical data into training set data and test set data; initialize the linear regression model and set model parameters, and use the training set data for training the linear regression model;
[0066] Use the test set data to optimize the model parameters;
[0067] S4. Input the newly collected equipment operating parameters into the trained linear regression model to obtain the model prediction result, that is, the static electricity accumulation amount corresponding to the time series.
[0068] It should be noted that the humidity detection module 10 is specifically used to monitor the ambient humidity in real time, for example, using a PT100 platinum resistance humidity sensor to continuously monitor the humidity of the processing environment. When the humidity gradually increases from the initial 20% to 28% during the metal mold processing, the humidity detection module 10 can capture this change in real time. Signal conversion and output: The detected humidity data is converted into a standard 4-20mA current signal or a 0-10V voltage signal. For example, 20% may correspond to 4mA, and 28% may correspond to a current output of 7.2mA. High-precision detection: A high-precision humidity sensor, such as a digital humidity sensor that can achieve an accuracy of ±0.1%, is used to ensure that even small fluctuations in humidity changes can be accurately captured. Fast response: A fast-response humidity sensor with a response time of less than 1 second is used to promptly reflect changes in ambient humidity. The first switch module 30 is specifically used for signal reception and processing: receiving a humidity electrical signal from the humidity detection module 10 and performing signal processing. For example, a 4-20mA current signal is converted into a corresponding humidity value. Threshold comparison: Compare the actual humidity with a preset humidity threshold (such as 25%). When the humidity is detected to be over 25%, the switch action is triggered. Switch control: Control the on and off of the power supply circuit according to the comparison result. For example, when the humidity exceeds 25%, close the switch to turn on the power supply circuit; when the humidity is lower than 25%, open the switch to cut off the power supply circuit. Delay protection: In order to prevent frequent switching from causing equipment loss, a certain delay protection can be set. For example, a 30-second delay is set to ensure that the switch action is triggered only after the humidity exceeds the threshold for 30 seconds. Status feedback: The current switch status and humidity information are fed back through the LED indicator or digital display to facilitate operator monitoring. Intelligent control: Intelligent control is achieved according to the humidity change trend. For example, when the humidity rises rapidly, the humidifier and static elimination equipment can be started in advance to prevent the environment from being overly dry. Through the collaborative work of the humidity detection module 10 and the first switch module 30, the system can automatically control the operation of the humidifier and static elimination equipment according to the real-time environmental humidity, effectively manage the humidity of the processing environment, reduce static electricity accumulation, and thus improve the precision and quality of metal mold processing.
[0069] It should be noted that the comparison module 20, as an intermediate layer between the humidity detection module 10 and the first switch module 30, is responsible for making more accurate humidity control judgments. It is directly connected to the humidity detection module 10 and the first switch module 30, processes the signal from the humidity detection module 10, and sends a control signal to the first switch module 30. In addition to outputting the humidity electrical signal to the first switch module 30, the extended function of the humidity detection module 10 now also outputs the same signal to the comparison module 20 at the same time. This ensures that the original function remains unchanged and provides data support for the newly added comparison function. The comparison module 20 is specifically used to receive the humidity electrical signal from the humidity detection module 10. The voltage value corresponding to the received humidity electrical signal is compared with the preset humidity voltage value. When the voltage value of the actual humidity electrical signal exceeds the preset value, the first conduction signal is output to the first switch module 30. The first switch module 30 not only works according to the signal directly from the humidity detection module 10, but also responds to the first conduction signal from the comparison module 20. When the first conduction signal is received, it conducts the power supply connection between the power supply and the humidifier. By introducing a preset humidity voltage value, the start point of the humidifier can be controlled more accurately. The preset humidity voltage value can be easily adjusted as needed to adapt to different production requirements or environmental conditions. Through the judgment of the comparison module 20, the frequent start and stop of the humidifier caused by humidity fluctuations is reduced. As an intermediate layer, the comparison module 20 can perform preliminary processing on the humidity signal to improve the anti-interference ability of the system. The comparison module 20 can be debugged and maintained separately without affecting other parts of the entire system. In practical applications, it is assumed that the preset humidity is 25%, and the corresponding preset humidity voltage value is 5V. When the ambient humidity rises to 26%, the humidity electrical signal output by the humidity detection module 10 may be 5.2V. After receiving this signal, the comparison module 20 compares 5.2V with the preset 5V, and finds that the former is greater than the latter, so it outputs a first conduction signal to the first switch module 30. After receiving this signal, the first switch module 30 will conduct the connection between the power supply and the humidifier, and start the humidifier to adjust the ambient humidity. This design enables the system to control the humidification process more accurately and flexibly, helping to maintain optimal temperature and humidity conditions in the metal mold processing environment, thereby improving product quality and production efficiency.
[0070] Furthermore, the system further comprises: a controller 40 and a second switch module 50;
[0071] The controller 40 receives the prediction result of the prediction module 22, calculates and dynamically adjusts the operation mode of the humidifier and the static elimination device according to the static accumulation amount of the corresponding time sequence, so as to maintain the processing environment of the mold always within a stable range; the controller 40 is respectively connected to the humidity detection module 10, the humidifier, the static elimination device and the control end of the second switch module 50, the input end of the second switch module 50 is respectively connected to the humidity detection module 10 and the comparison module 20, and the output end of the second switch module 50 is grounded;
[0072] The humidity detection module 10 and the static electricity detection module 11 are also used to output an electrical signal to the controller 40 and output a second conduction signal to the second switch module 50;
[0073] The second switch module 50 is used to conduct the power connection between the humidity detection module 10 and the ground when receiving the second conduction signal, so that the first switch module 30 disconnects the power connection between the power supply and the humidifier.
[0074] It should be noted that the controller 40, as the core of the system, is responsible for more complex logical judgment and control. The second switch module 50 is used to control the grounding state of the humidity detection module 10. In addition to outputting a humidity electrical signal to the comparison module 20, the humidity detection module 10 also outputs the same signal to the controller 40. The humidifier can detect the ambient humidity and output the corresponding humidity electrical signal to the controller 40. The controller 40 receives and compares the humidity electrical signal and the humidity electrical signal. Determine whether the temperature and humidity relationship meets the preset conditions. When the conditions are met, send a second conduction signal to the second switch module 50. The second switch module 50 receives the second conduction signal from the controller 40. When the signal is received, the connection between the humidity detection module 10 and the ground is turned on. Specifically, the system continuously monitors the ambient humidity and humidity. The controller 40 compares the humidity and humidity data in real time to determine whether it meets the preset temperature and humidity relationship. When the preset conditions are met, the controller 40 sends a signal to the second switch module 50. The second switch module 50 is turned on to ground the humidity detection module 10. This causes the first switch module 30 to disconnect the connection between the power supply and the humidifier and stop humidification. The advantage of the system is that it not only considers humidity, but also humidity, to achieve more comprehensive environmental management. A more intelligent control strategy can be achieved by performing complex logical judgments through the controller 40. The humidifier is controlled according to the actual temperature and humidity relationship to avoid over-humidification and save resources. The preset temperature and humidity relationship can be easily adjusted according to different product or seasonal requirements. Through multiple control mechanisms, the risk of system failure is reduced. In practical applications, it is assumed that the optimal environmental conditions for the production of a certain plastic particle building block toy metal mold processing are a temperature of 25°C and a relative humidity of 60%. The humidity sensor of the humidifier detects that the relative humidity is 58%, and outputs a corresponding voltage signal (such as 5.8V) to the controller 40. The controller 40 compares the two signals and finds that the temperature is slightly higher and the humidity is slightly lower, which meets the preset "need to humidify" condition. At this time, the controller 40 will not send a second conduction signal to the second switch module 50, the first switch module 30 remains in the conduction state, and the humidifier continues to work. As the humidifier works, the humidity gradually rises. When the humidity reaches 62% (assuming the output is 6.2V), the controller 40 determines that the temperature and humidity relationship has reached an ideal state. The controller 40 sends a second conduction signal to the second switch module 50. The second switch module 50 is turned on, and the humidity detection module 10 is grounded. This causes the first switch module 30 to disconnect the power supply, and the humidifier stops working. This design enables the system to control the production environment more intelligently and accurately, taking into account not only humidity but also humidity, so as to better maintain the optimal environmental conditions for metal mold processing and further improve product quality and production efficiency.
[0075] Furthermore, the system further comprises: a wireless communication module 60;
[0076] The wireless communication module 60 is connected to the controller 40 and the terminal device respectively;
[0077] The controller 40 is further configured to output a corresponding temperature and humidity display signal to the wireless communication module 60 according to the corresponding voltage value of the humidity electrical signal and the voltage value corresponding to the humidity electrical signal;
[0078] The wireless communication module 60 is used to send the temperature and humidity display signal to the terminal device by wireless transmission when receiving the temperature and humidity display signal, so that the terminal device can display the ambient humidity and the ambient humidity in the processing environment of the mold based on the temperature and humidity display signal.
[0079] It should be noted that this further system design introduces a wireless communication module 60 to connect the system with an external terminal device to achieve remote monitoring and data visualization. The wireless communication module 60 is responsible for data transmission between the system and the external terminal device. The terminal device is used to receive and display environmental temperature and humidity data. The wireless communication module 60 is directly connected to the controller 40. The wireless communication module 60 is connected to the terminal device wirelessly. The controller 40 converts the humidity and humidity data into a temperature and humidity display signal. The temperature and humidity display signal is output to the wireless communication module 60. The wireless communication module 60 receives the temperature and humidity display signal from the controller 40. The signal is sent to the terminal device via a wireless transmission method (such as Wi-Fi, Bluetooth or 4G / 5G network). The terminal device receives the temperature and humidity display signal from the wireless communication module 60. The environmental humidity and humidity are displayed according to the received signal. In practical applications, it is assumed that in a factory producing plastic particle building block toys: the controller 40 receives data with a relative humidity of 59% (corresponding to a voltage of 5.9V). The controller 40 converts these data into a temperature and humidity display signal in a standard format. The wireless communication module 60 (such as using a Wi-Fi module) receives this signal. The signal is transmitted to the manager's smartphone or tablet via the factory's Wi-Fi network. The dedicated app on the smartphone shows that the current relative humidity of the production environment is 59%. The app can also display a trend chart of temperature and humidity changes to help managers predict environmental changes. If the temperature and humidity are close to the preset warning line (such as humidity below 55%), the app will issue an alarm reminder. This design not only improves the intelligence of the system, but also greatly enhances the monitorability and controllability of the production process. Managers can grasp the production environment conditions anytime and anywhere, and make timely adjustment decisions, so as to better ensure product quality and improve production efficiency. At the same time, it also provides a basis for data analysis and continuous improvement of the production process. This is a very valuable improvement for the production of plastic particle building block toys that require precise environmental control.
[0080] Furthermore, the system further comprises: a voltage dividing module 70 and a voltage stabilizing module 80;
[0081] The voltage dividing module 70 is connected to the power supply and the voltage stabilizing module 80 respectively, and the voltage stabilizing module 80 is connected to the humidity detection module 10;
[0082] The voltage dividing module 70 is used to divide the power supply voltage provided by the power supply to obtain a divided voltage, and send the divided voltage to the voltage stabilizing module 80;
[0083] The voltage stabilization module 80 is used to stabilize the divided voltage and send the stabilized divided voltage to the humidity detection module 10;
[0084] The humidity detection module 10 is further used to adjust the divided voltage after stabilization to obtain the humidity electrical signal.
[0085] It should be noted that the voltage divider module 70 receives a voltage from a power supply. The voltage is reduced to a level suitable for subsequent circuits. The voltage after voltage division is output to the voltage stabilizing module 80. The voltage stabilizing module 80 receives the voltage from the voltage divider module 70. The voltage is stabilized to eliminate fluctuations. The stable voltage is output to the humidity detection module 10. The humidity detection module 10 receives the stable voltage from the voltage stabilizing module 80. Based on the received stable voltage, humidity detection is performed. The detected humidity is converted into a corresponding humidity electrical signal.
[0086] Further, the humidity detection module 10 includes: a first resistor R1, which is a thermistor;
[0087] The first end of the first resistor R1 is connected to the power supply through the voltage stabilizing module 80 and the voltage dividing module 70 , and the second end of the first resistor R1 is connected to the controller 40 , the second switch module 50 and the comparison module 20 , respectively.
[0088] It should be noted that thermistors are very sensitive to humidity changes and can detect small humidity changes. Thermistors can quickly respond to changes in ambient humidity. Thermistors have simple structures, low failure rates, and long service lives. Compared to complex humidity sensors, thermistors are less expensive. The humidity signal is simultaneously output to the controller 40, the second switch module 50, and the comparison module 20, realizing multiple control and comparison functions.
[0089] Further, the comparison module 20 comprises: a first comparator A1;
[0090] The positive input terminal of the first comparator A1 is connected to the second end of the first resistor R1 and the second switch module 50, the negative input terminal of the first comparator A1 is connected to the first preset reference power supply, and the output terminal of the first comparator A1 is connected to the switch module.
[0091] It should be noted that the comparator compares the voltage at the positive input terminal with the voltage at the reverse input terminal. When the positive input voltage is higher than the reverse input voltage, the output is a high level; otherwise, the output is a low level. The first preset reference power supply provides a fixed reference voltage, representing a specific humidity threshold. The voltage of the thermistor changes with humidity, and when it exceeds or falls below the threshold, the comparator output state changes.
[0092] Furthermore, the switch module includes: a first switch tube Q1 and a second resistor R2;
[0093] Among them, the first end of the second resistor R2 is connected to the power supply, the second end of the second resistor R2 is connected to the input end of the first switch tube Q1, the control end of the first switch tube Q1 is connected to the output end of the first comparator A1, and the output end of the first switch tube Q1 is connected to the humidifier.
[0094] It should be noted that the output signal of the comparator controls the switch state of the first switch tube Q1. When the comparator outputs a high level, the switch tube is turned on; when the comparator outputs a low level, the switch tube is turned off. When the switch tube is turned on, the humidifier works; when it is turned off, the humidifier stops working. The second resistor R2 is used to limit the current and protect the switch tube. Provide an appropriate bias voltage to ensure the normal operation of the switch tube.
[0095] Furthermore, the second switch module 50 includes: a second switch tube Q2;
[0096] The input end of the second switch tube Q2 is respectively connected to the second end of the first resistor R1 and the positive input end of the first comparator A1, the control end of the second switch tube Q2 is connected to the controller 40, and the output end of the second switch tube Q2 is grounded.
[0097] It should be noted that the controller 40 affects the humidity detection circuit by controlling the switching state of the second switch tube Q2. When the switch tube is turned on, the input end is pulled down to close to the ground level; when the switch tube is turned off, the input end maintains a normal voltage. The controller 40 compares the humidity and humidity data in real time to determine whether it meets the preset temperature and humidity relationship. When the preset conditions are met, the controller 40 sends a signal to the second switch tube Q2. The second switch tube Q2 is turned on and the humidity detection module 10 is grounded. This causes the first switch tube Q1 to disconnect the power supply and the humidifier and stop humidification.
[0098] Further, the voltage dividing module 70 includes: a third resistor R3 and a fourth resistor R4, and the voltage stabilizing module 80 includes: a first capacitor C1;
[0099] Among them, the first end of the third resistor R3 is connected to the power supply, the second end of the third resistor R3 is connected to the first end of the fourth resistor R4, the first end of the fourth resistor R4 is also connected to the first end of the first resistor R1 and the first end of the first capacitor C1, and the second end of the fourth resistor R4 and the second end of the first capacitor C1 are grounded.
[0100] It should be noted that the third resistor R3 and the fourth resistor R4 form a voltage divider circuit. The power supply voltage is stepped down through the third resistor R3, and the voltage is transmitted from the second end of the third resistor R3 to the first end of the fourth resistor R4. The output voltage of the voltage divider circuit (the voltage at the second end of the fourth resistor R4) can be set by adjusting the resistance values of the third resistor R3 and the fourth resistor R4. The function of the first capacitor C1 is to filter and stabilize the voltage. The capacitor is connected between the fourth resistor R4 and the ground, which helps to smooth the voltage and reduce the impact of power supply fluctuations or noise on the circuit. The characteristics of capacitor charging and discharging can reduce voltage fluctuations, making the voltage passing through the fourth resistor R4 more stable, and providing a stable reference voltage.
[0101] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.
[0102] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. An open modular CNC system, characterized in that: The system comprises: a humidity detection module, a static electricity detection module, a comparison module and a first switch module; The humidity detection module is used to detect the ambient humidity in the processing environment of the mold, and convert the ambient humidity into a corresponding humidity electrical signal and output it to the comparison module; The electrostatic detection module is used to detect the amount of static electricity accumulation in the processing environment of the mold, and convert the static electricity accumulation into a corresponding electrostatic electric signal and output it to the comparison module; The humidity comparison module receives the electrical signals from the humidity detection module and the static electricity detection module and outputs them to the first switch module; The comparison module is used to compare the humidity electrical signal and the static electrical signal with corresponding preset thresholds: If the voltage value of the humidity electrical signal is lower than the preset humidity threshold lower limit, the first switch module outputs a first conduction signal value to start the humidifier to increase the humidity; If the voltage value of the electrostatic electric signal is higher than the preset electrostatic threshold upper limit, the first switch module outputs a first conduction signal value to start the electrostatic elimination device to reduce the accumulation of electrostatic; The first switch module is used to conduct the power supply connection between the power supply and the humidifier and the static elimination device when receiving the first conduction signal; The system also includes: a collection module and a prediction module; The acquisition module is used to acquire equipment operating parameters; equipment operating parameters include equipment feed speed, duration and processing material characteristics; The prediction module is used to construct a linear regression model, and the linear regression model is trained by using the equipment operating parameters as input data to establish a temporal linear relationship between the equipment operating parameters and the amount of static electricity accumulation; the construction process of the linear regression model includes the following steps: S1. Collect historical data of the system, including equipment operating parameters and static electricity accumulation in the corresponding time sequence; S2. Preprocess the historical data, including data cleaning and normalization; S3. Divide the preprocessed historical data into training set data and test set data; initialize the linear regression model and set model parameters, and use the training set data for training the linear regression model; Use the test set data to optimize the model parameters; S4. Input the newly collected equipment operating parameters into the trained linear regression model to obtain the model prediction result, that is, the static electricity accumulation amount corresponding to the time series.
2. An open modular numerical control system as claimed in claim 1, characterized in that: The system further includes: a controller and a second switch module; The controller receives the prediction result of the prediction module, calculates and dynamically adjusts the operation mode of the humidifier and the static elimination device according to the static electricity accumulation amount of the corresponding time sequence, so as to maintain the processing environment of the mold always within a stable range; the controller is respectively connected to the humidity detection module, the humidifier and the control end of the second switch module, the input end of the second switch module is respectively connected to the humidity detection module and the comparison module, and the output end of the second switch module is grounded; The humidity detection module and the static electricity detection module are also used to output an electrical signal to the controller, and output a second conduction signal to the second switch module; The second switch module is used to conduct the power connection between the humidity detection module and the ground when receiving the second conduction signal, so that the first switch module disconnects the power connection between the power supply and the humidifier.
3. An open modular numerical control system as claimed in claim 2, characterized in that: The system further comprises: a wireless communication module; The wireless communication module is connected to the controller and the terminal device respectively; The controller is further used to output a corresponding temperature and humidity display signal to the wireless communication module according to the corresponding voltage value of the humidity electrical signal and the voltage value corresponding to the humidity electrical signal; The wireless communication module is used to send the temperature and humidity display signal to the terminal device by wireless transmission when receiving the temperature and humidity display signal, so that the terminal device can display the ambient humidity and the ambient humidity in the processing environment of the mold based on the temperature and humidity display signal.
4. An open modular numerical control system as claimed in claim 3, characterized in that: The system also includes: a voltage dividing module and a voltage stabilizing module; Wherein, the voltage dividing module is connected to the power supply and the voltage stabilizing module respectively, and the voltage stabilizing module is connected to the humidity detection module; The voltage dividing module is used to divide the power supply voltage provided by the power supply to obtain a divided voltage, and send the divided voltage to the voltage stabilizing module; The voltage stabilization module is used to stabilize the divided voltage and send the stabilized divided voltage to the humidity detection module; The humidity detection module is also used to adjust the voltage-divided voltage after stabilization to obtain the humidity electrical signal.
5. An open modular numerical control system as claimed in claim 4, characterized in that: The humidity detection module includes: a first resistor, which is a thermistor; The first end of the first resistor is connected to the power supply through the voltage stabilizing module and the voltage dividing module, and the second end of the first resistor is connected to the controller, the second switch module and the comparison module respectively.
6. An open modular numerical control system as claimed in claim 5, characterized in that: The comparison module comprises: a first comparator; The positive input terminal of the first comparator is connected to the second end of the first resistor and the second switch module, the negative input terminal of the first comparator is connected to a first preset reference power supply, and the output terminal of the first comparator is connected to the switch module.
7. An open modular numerical control system as claimed in claim 6, characterized in that: The switch module includes: a first switch tube and a second resistor; Among them, the first end of the second resistor is connected to the power supply, the second end of the second resistor is connected to the input end of the first switch tube, the control end of the first switch tube is connected to the output end of the first comparator, and the output end of the first switch tube is connected to the humidifier.
8. An open modular numerical control system as claimed in claim 7, characterized in that: The second switch module includes: a second switch tube; The input end of the second switch tube is respectively connected to the second end of the first resistor and the positive input end of the first comparator, the control end of the second switch tube is connected to the controller, and the output end of the second switch tube is grounded.
9. An open modular numerical control system as claimed in claim 8, characterized in that: The voltage dividing module includes: a third resistor and a fourth resistor, and the voltage stabilizing module includes: a first capacitor; Among them, the first end of the third resistor is connected to the power supply, the second end of the third resistor is connected to the first end of the fourth resistor, the first end of the fourth resistor is also connected to the first end of the first resistor and the first end of the first capacitor, and the second end of the fourth resistor and the second end of the first capacitor are grounded.
Citation Information
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