Intelligent control method and system for die temperature of die-casting machine

Abstract

The invention relates to the technical field of die-casting machine die temperature intelligent control, and particularly discloses a die-casting machine die temperature intelligent control method and system.The method comprises the steps of die-casting machine historical production state analysis, environmental influence analysis and die-casting machine state collection. Complex historical operation data are comprehensively analyzed to obtain a specific index, the historical operation state of the die-casting machine can be reflected in a visual and quantitative mode, the heat dissipation speed of a die-casting die can be influenced by the change of the environment temperature, and after the environment temperature data are obtained, a die temperature control strategy can be adjusted according to the actual environment temperature, so that the heat dissipation efficiency is improved. By monitoring the operation state of each area of the die-casting machine die, whether overheating, supercooling, abnormal pressure and other conditions exist in each area of the die or not can be detected in the first time, temperature control is carried out, and it is ensured that the temperature of the die is always kept within a reasonable range.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent control of die temperature of a die casting machine, and in particular to an intelligent control method and system of die temperature of a die casting machine. Background Art

[0002] Early die-casting machine mold temperature control mostly adopted simple heating or cooling methods, lacking precise temperature control means, and it was difficult to meet the needs of high-precision die-casting production. With the continuous advancement of temperature sensor technology, more and more high-precision and high-reliability temperature sensors are used in die-casting machine mold temperature control. These sensors can monitor the temperature changes of the mold in real time and provide accurate data support for subsequent intelligent control.

[0003] For example, the invention patent with the announcement number CN104368789B discloses a temperature control device and control method for a die-casting mold, including a die-casting mold, the die-casting mold includes a movable mold and a fixed mold, one end of the movable mold and the fixed mold are both water inlets, and the other ends are both water return ports, the return port is connected to a cooling water tower through a first water pipe, the first water pipe is provided with a first temperature sensor and a flow sensor, the cooling water tower and the water inlet are communicated through a second water pipe, and the second water pipe is provided with a high-pressure delivery water pump, a pressure indicator, a one-way valve, an electromagnetic valve, and a second temperature sensor.

[0004] For example, the invention patent with announcement number CN103736965B relates to a temperature control method for a magnesium alloy die-casting mold. According to the key areas in the casting molding, several temperature control zones are divided at the corresponding positions of the mold. Each temperature control zone is supplied with constant temperature oil by a mold temperature controller to control the temperature by heating when it is cold and cooling when it is hot. Several temperature control zones are divided in the key areas of the mold.

[0005] However, in the process of implementing the technical solutions of the embodiments, the present invention found that the above technology has at least the following technical problems: In the existing die-casting machine temperature control method, it mainly relies on cooling water towers and mold temperature controllers for relatively simple heat regulation. When faced with rapid changes in mold temperature, there will be a problem of delayed response speed. During high-speed die-casting, the mold temperature rises instantly, and the system's cooling or heating action cannot keep up in time, causing the mold temperature to deviate from the set value in a short period of time, affecting the quality of die-casting parts. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a method and system for intelligently controlling mold temperature of a die-casting machine, which can effectively solve the problems involved in the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: The first aspect of the present invention provides a die-casting machine mold temperature intelligent control method, including: S1. Analysis of the historical production status of the die-casting machine: obtaining the historical operation data of the die-casting machine during the historical operation process, analyzing the historical operation status index of the die-casting machine, matching the historical operation status index of the die-casting machine with the die-casting machine reference operation data corresponding to each die-casting machine historical operation status index interval preset in the control database, and obtaining the die-casting machine reference operation data.

[0008] S2. Environmental impact analysis: Obtain environmental data of the area where the die-casting machine belongs, analyze and obtain an environmental impact index, match the environmental impact index with the die-casting machine reference temperature corresponding to each environmental impact index interval preset in the control database, and obtain the die-casting machine reference temperature.

[0009] S3. Die-casting machine status acquisition: Real-time monitoring of the operating status of each area of ​​the die-casting machine mold, obtaining the operating status data of each area of ​​the die-casting machine, and comprehensively analyzing the operating status data of each area of ​​the die-casting machine, the die-casting machine reference operating data and the die-casting machine reference temperature to obtain the status indicators of each area of ​​the die-casting mold, and compare them with the die-casting mold status indicator thresholds preset in the control database to obtain the comparison results, and finally perform temperature control based on the comparison results.

[0010] As a further method, the die casting machine historical operation status index, the specific analysis process is: The average injection pressure, average injection speed, average cooling water temperature, average mold surface temperature and average mold heat capacity of the die-casting machine during its historical operating cycle are standardized.

[0011] The average injection pressure, average injection speed, average cooling water temperature, average mold surface temperature and average mold heat capacity of the die-casting machine during the historical operating cycle after standardized processing are recorded as the standardized average injection pressure, standardized average injection speed, standardized average cooling water temperature, standardized average mold surface temperature and standardized average mold heat capacity of the die-casting machine during the historical operating cycle, respectively.

[0012] The standardized average injection pressure, standardized average injection speed, standardized average cooling water temperature, standardized average mold surface temperature and standardized average mold heat capacity of the die-casting machine in the historical operation cycle are comprehensively analyzed to obtain the historical operation status index of the die-casting machine. The specific analysis method is as follows: ; In the formula, is the historical operating status index of the die casting machine, is a natural constant, is the normalized mean injection pressure, The reference injection pressure preset in the control database, The weight factor corresponding to the average injection pressure unit value preset in the control database, is the normalized average injection speed, To control the injection reference speed preset in the database, The weight factor corresponding to the average injection speed unit value preset in the control database, To standardize the average cooling water temperature, The cooling reference water temperature preset in the control database, The weight factor corresponding to the average cooling water temperature unit value preset in the control database, is the standardized average mold surface temperature, To control the mold surface reference temperature preset in the database, The weight factor corresponding to the unit value of the average temperature of the mold surface preset in the control database, is the standardized average heat capacity of the mold, The mold reference heat capacity preset for the control database, The weight factor corresponding to the unit value of the average heat capacity of the mold preset in the control database.

[0013] As a further method, the environmental impact index, the specific analysis process is: The difference between the average environmental vibration intensity of the area to which the die-casting machine belongs during the monitoring period and the environmental reference vibration intensity preset in the control database is processed to obtain the environmental vibration intensity deviation value of the area to which the die-casting machine belongs during the monitoring period.

[0014] The average electromagnetic interference intensity of the area to which the die-casting machine belongs during the monitoring period is processed by difference with the electromagnetic reference interference intensity preset in the control database to obtain the electromagnetic interference intensity deviation value of the area to which the die-casting machine belongs during the monitoring period.

[0015] The environmental impact index is obtained by comprehensively analyzing the ambient temperature deviation value, ambient vibration intensity deviation value, electromagnetic interference intensity deviation value, average air flow rate and average ambient humidity in the area where the die-casting machine is located during the monitoring period.

[0016] As a further method, the specific analysis process of the state indicators of each area of ​​the die-casting mold is as follows: The average heating power of each area of ​​the die-casting machine during the operation cycle is processed with the heating reference power to obtain the heating deviation power of each area of ​​the die-casting machine during the operation cycle.

[0017] The injection pressure deviation value of each area of ​​the die-casting machine during the operation cycle is obtained by performing difference processing on the injection average pressure of each area of ​​the die-casting machine during the operation cycle and the injection reference pressure.

[0018] The cooling temperature deviation value, cooling deviation water flow, heating deviation power, injection pressure deviation value and average mold temperature of each area of ​​the die-casting machine during the operation cycle are comprehensively analyzed to obtain the status indicators of each area of ​​the die-casting mold.

[0019] As a further method, the state indicators of each area of ​​the die-casting mold are compared with the die-casting mold state indicator thresholds preset in the control database to obtain a comparison result, and finally the temperature is controlled according to the comparison result. The specific comparison process is: If the state index of a certain area of ​​the die-casting mold is greater than or equal to the die-casting mold state index threshold preset in the control database, the comparison result is recorded as the first comparison result.

[0020] If the state index of a certain area of ​​the die-casting mold is less than the die-casting mold state index threshold preset in the control database, the comparison result is recorded as the second comparison result.

[0021] When the comparison result is the second comparison result, the temperature is controlled; The specific control process of controlling the temperature may be to increase the flow rate of cooling water, enhance the heat exchange efficiency, reduce the mold temperature, or to increase the temperature by turning on an auxiliary heating device.

[0022] The second aspect of the present invention provides a system for an intelligent control method for mold temperature of a die-casting machine, comprising: a die-casting machine historical production status analysis module, used to obtain historical operation data of the die-casting machine during its historical operation process, analyze and obtain a historical operation status index of the die-casting machine, match the historical operation status index of the die-casting machine with the die-casting machine reference operation data corresponding to each die-casting machine historical operation status index interval preset in a control database, and obtain the die-casting machine reference operation data.

[0023] The environmental impact analysis module is used to obtain the environmental data of the area where the die-casting machine belongs, analyze and obtain the environmental impact index, match the environmental impact index with the die-casting machine reference temperature corresponding to each environmental impact index interval preset in the control database, and obtain the die-casting machine reference temperature.

[0024] The die-casting machine status acquisition module is used to monitor the operating status of each area of ​​the die-casting machine mold in real time, obtain the operating status data of each area of ​​the die-casting machine, comprehensively analyze the operating status data of each area of ​​the die-casting machine, the die-casting machine reference operating data and the die-casting machine reference temperature, obtain the status indicators of each area of ​​the die-casting mold, and compare them with the die-casting mold status indicator threshold preset in the control database to obtain the comparison result, and finally perform temperature control based on the comparison result.

[0025] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects: (1) The present invention is applicable to nonferrous metal casting in aerospace, automobile, and high-speed rail. By acquiring the historical operation data of the die-casting machine during its historical operation, the operation status of the die-casting machine in different time periods and different production tasks can be clearly seen, and the complex historical operation data can be comprehensively analyzed to obtain a specific index, which can reflect the historical operation status of the die-casting machine in an intuitive and quantitative manner; (2) The change of the ambient temperature of the present invention will affect the heat dissipation speed of the die-casting mold. After obtaining the ambient temperature data, the mold temperature control strategy can be adjusted according to the actual ambient temperature to maintain the stability of the mold temperature; (3) The present invention obtains the operating status data of each area of ​​the die-casting machine by real-time monitoring the operating status of each area of ​​the die-casting machine. It can detect whether there are conditions such as overheating, overcooling, abnormal pressure, etc. in each area of ​​the die-casting machine at the first time, so as to avoid further deterioration of the problem and cause damage to the mold or quality defects of the casting. The present invention also analyzes and obtains the status indicators of each area of ​​the die-casting mold, converts the complex operating status data into specific and quantifiable status indicators, and can more intuitively reflect the working conditions of each area of ​​the mold, which is convenient for evaluating the overall performance of the mold. The status indicators of each area of ​​the die-casting mold are compared with the die-casting mold status indicator thresholds preset in the control database to obtain a comparison result. Finally, temperature control is performed according to the comparison result to ensure that the mold temperature is always maintained within a reasonable range, avoid affecting the mold life, casting quality and production efficiency due to excessively high or low temperature, and improve the stability and reliability of the die-casting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0027] Figure 1 The figure is a schematic flow chart of the method steps of the present invention.

[0028] Figure 2 It is a schematic diagram of system module connection of the present invention. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] Reference Figure 1As shown, the first aspect of the present invention provides a die-casting machine mold temperature intelligent control method, including: S1. die-casting machine historical production status analysis: acquiring historical operation data of the die-casting machine during historical operation, analyzing to obtain the die-casting machine historical operation status index, matching the die-casting machine historical operation status index with the die-casting machine reference operation data corresponding to each die-casting machine historical operation status index interval preset in the control database, and obtaining the die-casting machine reference operation data; S2. Environmental impact analysis: Obtain environmental data of the area where the die-casting machine belongs, analyze and obtain an environmental impact index, match the environmental impact index with the die-casting machine reference temperature corresponding to each environmental impact index interval preset in the control database, and obtain the die-casting machine reference temperature.

[0031] It should be explained that the above-mentioned die-casting machine reference temperature is obtained by matching the environmental impact index with the die-casting machine reference temperature corresponding to each environmental impact index interval preset in the control database.

[0032] In the present invention, referring to industry standards (such as JB / T12345-2020) and measured data from the monitoring period average, Δt=5°C, |t|=0.408°C, Δz=2μm, |z|=0.163μm, Δdr=10dB|dr|=0.816dB, Δkl=1m / s, kl=1.0816m / s, sd=0.0816, in this embodiment, set = = = = =0.1, so the above data is put into the calculation formula of the environmental impact index, and the final calculation result of the environmental impact index is 0.2.

[0033] In this embodiment, the environmental impact index is 0.2, and the environmental impact index interval set by the control database is [0.2, 0.5), and the reference temperature of the die-casting machine corresponding to the environmental impact index interval [0.2, 0.5) is 250 degrees Celsius. Then, in this embodiment, the reference temperature of the die-casting machine corresponding to the environmental impact index of 0.2 is 250 degrees Celsius.

[0034] S3. Die-casting machine status acquisition: Real-time monitoring of the operating status of each area of ​​the die-casting machine mold, obtaining the operating status data of each area of ​​the die-casting machine, and comprehensively analyzing the operating status data of each area of ​​the die-casting machine, the die-casting machine reference operating data and the die-casting machine reference temperature to obtain the status indicators of each area of ​​the die-casting mold, and compare them with the die-casting mold status indicator thresholds preset in the control database to obtain the comparison results, and finally perform temperature control based on the comparison results.

[0035] Specifically, the historical operation data includes the average injection pressure, average injection speed, average cooling water temperature, average mold surface temperature and average mold heat capacity of the die casting machine during the historical operation cycle.

[0036] It should be explained that the average injection pressure of the above-mentioned die-casting machine in the historical operation cycle is measured in real time using a pressure sensor. In the entire historical operation cycle, the pressure data of each injection process is averaged to obtain the average injection pressure in the cycle; the average injection speed is measured by a flow rate sensor. The speed data in each injection cycle are recorded and statistically analyzed to calculate the average injection speed in the cycle; the average cooling water temperature is measured in real time by a temperature sensor installed on the cooling water pipeline. The temperature data of the cooling water in multiple operation cycles are recorded and the average value of these data is calculated to obtain the cooling water temperature. The historical average value of water temperature; the average temperature of the mold surface is obtained by real-time monitoring of the temperature through thermocouples installed on the mold surface, and by recording the temperature data of the mold surface in multiple production cycles, and calculating the average value thereof to obtain the historical average temperature of the mold surface; the average heat capacity of the mold is obtained by installing heat flow sensors at multiple positions of the mold, recording the heat changes of the mold during the thermal cycle, and performing mean analysis on the recorded data to obtain the average heat capacity of the mold; in this embodiment, the historical operation cycle refers to the total process of operation and production of the die-casting machine within a specific period of time, and this period of time can be defined according to different needs, for example: divided by day, week, month, quarter, or even a production batch.

[0037] Specifically, the die-casting machine historical operation status index has a specific analysis process as follows: The average injection pressure, average injection speed, average cooling water temperature, average mold surface temperature and average mold heat capacity of the die-casting machine during its historical operating cycle are standardized.

[0038] It should be explained that the above-mentioned standardization processing can eliminate the impact of different dimensions or numerical ranges by converting the data to a common scale, which helps to improve the stability and accuracy of the analysis, modeling or optimization algorithm. In this embodiment, the average injection pressure, average injection speed, average cooling water temperature, average mold surface temperature and average mold heat capacity of the die-casting machine in the historical operation cycle are standardized. The specific method for standardization is the Z-score standardization method.

[0039] The average injection pressure, average injection speed, average cooling water temperature, average mold surface temperature and average mold heat capacity of the die-casting machine during the historical operating cycle after standardized processing are recorded as the standardized average injection pressure, standardized average injection speed, standardized average cooling water temperature, standardized average mold surface temperature and standardized average mold heat capacity of the die-casting machine during the historical operating cycle, respectively.

[0040] The standardized average injection pressure, standardized average injection speed, standardized average cooling water temperature, standardized average mold surface temperature and standardized average mold heat capacity of the die-casting machine in the historical operation cycle are comprehensively analyzed to obtain the historical operation status index of the die-casting machine. The specific analysis method is as follows: ; In the formula, is the historical operating status index of the die casting machine, is a natural constant, is the normalized mean injection pressure, The reference injection pressure preset in the control database, The weight factor corresponding to the average injection pressure unit value preset in the control database, is the normalized average injection speed, To control the injection reference speed preset in the database, The weight factor corresponding to the average injection speed unit value preset in the control database, To standardize the average cooling water temperature, The cooling reference water temperature preset in the control database, The weight factor corresponding to the average cooling water temperature unit value preset in the control database, is the standardized average mold surface temperature, To control the mold surface reference temperature preset in the database, The weight factor corresponding to the unit value of the average temperature of the mold surface preset in the control database, is the standardized average heat capacity of the mold, The mold reference heat capacity preset for the control database, The weight factor corresponding to the unit value of the average heat capacity of the mold preset in the control database.

[0041] It should be explained that the above-mentioned die-casting machine historical operating status index is a comprehensive indicator used to evaluate the working status of the die-casting machine during its historical operating cycle; the standardized average injection pressure refers to the average pressure generated during the injection process during the historical operating cycle of the die-casting machine, and the value is standardized; the preset reference injection pressure refers to the injection pressure reference value preset according to the die-casting process requirements; the standardized average injection speed refers to the average value of the speed during the injection process of the die-casting machine during the historical operating cycle, and the value is standardized; the preset injection reference speed refers to the injection speed reference value in the die-casting process; the standardized average cooling water temperature refers to the average value of the water temperature in the cooling system during the historical operating cycle of the die-casting machine, and the value is standardized; the preset cooling reference water temperature refers to the cooling water temperature reference value preset according to the die-casting process requirements; the standardized average mold surface temperature refers to the average value of the mold surface temperature during the historical operating cycle of the die-casting machine, and the value is standardized. The value after standardization; the preset mold surface reference temperature refers to the mold surface temperature reference value preset according to the die-casting process requirements; the standardized mold average heat capacity refers to the average value of the heat capacity of the mold during the historical operation cycle of the die-casting machine, which is a value after standardization; the preset mold reference heat capacity refers to the mold heat capacity reference value preset according to the die-casting process requirements; in this embodiment, the weight factor corresponding to the preset average injection pressure unit value, the weight factor corresponding to the preset average injection speed unit value, the weight factor corresponding to the preset average cooling water temperature unit value, the weight factor corresponding to the preset mold surface average temperature unit value and the weight factor corresponding to the preset mold average heat capacity unit value respectively represent the degree of influence of the average injection pressure unit value, the average injection speed unit value, the average cooling water temperature unit value, the mold surface average temperature unit value and the mold average heat capacity unit value on the historical operation status index of the die-casting machine.

[0042] In this embodiment, when the average injection pressure is larger or smaller, that is, when the degree of deviation from the preset reference injection pressure is large, the high injection pressure will cause the mold to bear mechanical stress far exceeding the design, accelerating the wear, deformation and even cracking of the mold; when the average injection speed is larger or smaller, that is, when the degree of deviation from the preset injection reference speed is large, the injection speed is too fast, the gas in the mold cavity will not be discharged in time, resulting in defects such as pores and looseness inside the casting, reducing the quality and performance of the casting, thereby reducing the historical operation status index; the injection speed is too slow, which will cause the molten metal to easily cool and solidify during the filling process, resulting in incomplete filling, poor surface quality and other problems, affecting product quality and production efficiency, and lowering the historical operation status index; when the average cooling water temperature is larger or smaller, that is, when the degree of deviation from the preset cooling reference water temperature is large, the cooling water temperature is too high, which will make the mold temperature too high and unable to effectively take away the heat of the mold, resulting in a continuous increase in the mold temperature, slowing down the cooling speed of the casting, coarsening the grains, and reducing the mechanical properties; the cooling water temperature is too low, which will cause excessive thermal stress, and the mold cooling too fast will produce large thermal stress, which is easy to cause the mold to crack, thereby lowering the historical operation status index. Historical operating status index; larger or smaller average mold surface temperature, that is, when the degree of deviation from the preset mold surface reference temperature is large, high temperature will make the cooling speed of the casting uneven, resulting in large internal stress inside the casting. When the mold surface temperature is too low, the fluidity of the molten metal will deteriorate when it flows on the low-temperature mold surface, and defects such as insufficient filling and cold shut are prone to occur, affecting the molding quality of the casting and lowering the historical operating status index; larger or smaller average mold heat capacity, that is, when the degree of deviation from the preset mold reference heat capacity is large, large heat capacity means that the mold absorbs and releases heat slowly, and it takes longer to reach the appropriate working temperature, which increases the production cycle and reduces production efficiency, making the historical operating status index worse. If the average heat capacity of the mold is too small, it will cause large temperature fluctuations. The mold is easily affected by the heat injected by the molten metal during the die-casting process, and the temperature fluctuates greatly, making it difficult to maintain a stable working temperature, which will cause unstable molding quality of the casting, defects, and reduce the historical operating status index. Therefore, through a detailed analysis of each parameter in the historical operating status index of the die-casting machine, the historical operating performance of the die-casting machine can be fully grasped.

[0043] Furthermore, the die-casting machine reference operation data specifically includes a die-casting machine cooling reference temperature, a cooling water reference flow rate, a heating reference power, and an injection reference pressure.

[0044] It should be explained that the above die-casting machine cooling reference temperature, cooling water reference flow, heating reference power and injection reference pressure are obtained by matching the die-casting machine historical operation status index with the die-casting machine reference operation data corresponding to each die-casting machine historical operation status index interval preset in the control database. The specific matching process is: The die-casting machine historical operation state index is matched with the die-casting machine reference operation data corresponding to each die-casting machine historical operation state index interval in the control database, thereby obtaining the die-casting machine reference operation data; in the present invention, Δy is set to 100MPa, Δzs is set to 5m / s, Δsw is set to 50°C, Δb is set to 200°C, Δr is set to 500kJ / K, y is set to 98MPa, zs is set to 5.2m / s, sw is set to 52°C, b is set to 195°C, r is set to 510kJ / K, is 0.3, is 0.2, is 0.2, is 0.2, is 0.1, and the above data is brought into the calculation formula of the historical operation state index of the die-casting machine, and finally the result of the historical operation state index of the die-casting machine is 0.362. In this embodiment, the historical operation state index of the die-casting machine is 0.362, and the historical operation state index interval of the die-casting machine set by the control database is (0, 0.5], and the historical operation state index interval of the die-casting machine is (0, 0.5], and the corresponding die-casting machine cooling reference temperature is 180 degrees Celsius, the cooling water reference flow rate is 16 liters per minute, the heating reference power is 10 kilowatts, and the injection reference pressure is 70 MPa. In this embodiment, when the historical operation state index of the die-casting machine is 0.362, the corresponding die-casting machine cooling reference temperature is 180 degrees Celsius, the cooling water reference flow rate is 16 liters per minute, the heating reference power is 10 kilowatts, and the injection reference pressure is 70 MPa.

[0045] Specifically, the environmental data of the area to which the die-casting machine belongs includes the average environmental temperature, average environmental vibration intensity, average electromagnetic interference intensity, average air flow rate and average environmental humidity of the area to which the die-casting machine belongs during the monitoring period.

[0046] It should be explained that the above-mentioned average ambient temperature is obtained by monitoring the ambient temperature through a temperature sensor, transmitting the data to the central control system, and calculating the average value within the monitoring period to obtain the average ambient temperature; the average ambient vibration intensity is obtained by real-time monitoring the vibration acceleration through an acceleration sensor, and calculating the average vibration intensity within the monitoring period to obtain the average ambient vibration intensity; the average electromagnetic interference intensity is obtained by real-time monitoring the electromagnetic field intensity through an electromagnetic field strength meter, and calculating the average electromagnetic interference intensity within the monitoring period to obtain the average electromagnetic interference intensity; the average air flow rate is obtained by real-time monitoring the air flow rate through a wind speed sensor, and calculating the average air flow rate within the monitoring period to obtain the average air flow rate; the average ambient humidity can be obtained by real-time monitoring the relative humidity through a humidity sensor, and calculating the average humidity within the monitoring period to obtain the average ambient humidity; in this embodiment, the monitoring period refers to the time period used to calculate the average value of the environmental parameter.

[0047] The difference between the average ambient temperature of the area to which the die-casting machine belongs during the monitoring period and the ambient reference temperature preset in the control database is processed to obtain the ambient temperature deviation value of the area to which the die-casting machine belongs during the monitoring period.

[0048] Specifically, the environmental impact index has a specific analysis process as follows: The difference between the average environmental vibration intensity of the area to which the die-casting machine belongs during the monitoring period and the environmental reference vibration intensity preset in the control database is processed to obtain the environmental vibration intensity deviation value of the area to which the die-casting machine belongs during the monitoring period.

[0049] The average electromagnetic interference intensity of the area to which the die-casting machine belongs during the monitoring period is processed by difference with the electromagnetic reference interference intensity preset in the control database to obtain the electromagnetic interference intensity deviation value of the area to which the die-casting machine belongs during the monitoring period.

[0050] The environmental impact index is obtained by comprehensively analyzing the ambient temperature deviation value, ambient vibration intensity deviation value, electromagnetic interference intensity deviation value, average air flow rate and average ambient humidity in the area where the die-casting machine belongs during the monitoring period. The specific analysis method is as follows: ; In the formula, is the environmental impact index, is the ambient temperature deviation value, The ambient temperature tolerance value preset for the control database, The weight factor corresponding to the unit value of the ambient temperature deviation value preset in the control database, is the environmental vibration intensity deviation value, The allowable deviation value of the environmental vibration intensity preset for the control database, The weight factor corresponding to the unit value of the environmental vibration intensity deviation value preset in the control database, is the electromagnetic interference intensity deviation value, The allowable deviation value of electromagnetic interference intensity preset in the control database, The weight factor corresponding to the unit value of the electromagnetic interference intensity deviation value preset in the control database, is the average air velocity, The air reference flow rate preset for the control database, The weight factor corresponding to the unit value of the average air velocity preset in the control database, is the average ambient humidity, The weight factor corresponding to the average unit value of the ambient humidity preset in the control database.

[0051] It should be explained that the above environmental impact index is a comprehensive quantitative indicator used to evaluate the overall impact of the environmental conditions in the area where the die-casting machine is located on the equipment operation and product quality; the ambient temperature deviation value refers to the difference between the ambient average temperature and the ambient reference temperature preset in the control database; the preset ambient temperature allowable deviation value refers to the maximum range value of the ambient temperature deviation; the ambient vibration intensity deviation value refers to the difference between the ambient average vibration intensity and the ambient reference vibration intensity; the preset ambient vibration intensity allowable deviation value refers to the maximum range value of the vibration intensity deviation; the electromagnetic interference intensity deviation value refers to the difference between the electromagnetic average interference intensity and the electromagnetic reference interference intensity; the preset electromagnetic interference intensity allowable deviation value refers to the maximum range value of the electromagnetic interference intensity deviation; the average air flow rate refers to the value of the monitoring The average rate of air flow during the measurement period; the preset air reference flow rate refers to the target rate of air flow in the workshop; the ambient average humidity refers to the average value of air humidity during the monitoring period; in this embodiment, the weight factor corresponding to the preset ambient temperature deviation value unit value, the weight factor corresponding to the preset ambient vibration intensity deviation value unit value, the weight factor corresponding to the preset electromagnetic interference intensity deviation value unit value, the weight factor corresponding to the preset air average flow rate unit value and the weight factor corresponding to the preset ambient average humidity unit value respectively refer to the degree of influence of the ambient temperature deviation value unit value, the ambient vibration intensity deviation value unit value, the electromagnetic interference intensity deviation value unit value, the air average flow rate unit value and the ambient average humidity unit value on the environmental impact index.

[0052] In this embodiment, the ambient temperature deviation value is relatively large, even greater than the preset ambient temperature allowable deviation value. Too high an ambient temperature may cause the oil temperature of the hydraulic system of the die-casting machine to rise, reduce the oil viscosity, affect the working performance and accuracy of the hydraulic components, increase the risk of leakage, and reduce the system efficiency. Too low a temperature may increase the oil viscosity, resulting in difficulty in starting the hydraulic pump and increased pressure loss. In addition, a large temperature deviation may also cause uneven thermal expansion and contraction of the mechanical parts of the die-casting machine, resulting in additional stress and deformation, affecting the stability and accuracy of the equipment; a large ambient vibration intensity deviation value, even greater than the preset ambient vibration intensity allowable deviation value, will subject the parts of the die-casting machine to additional alternating stress, accelerating the wear and fatigue damage of the parts, such as loose connections and broken bolts; a large electromagnetic interference intensity deviation value, even greater than the preset electromagnetic interference intensity allowable deviation value, may interfere with the electrical control system of the die-casting machine, causing the sensor Signal distortion and controller malfunction lead to unstable operating parameters of the equipment, such as inaccurate injection speed and pressure control; the average air flow rate is large, even greater than the preset air reference flow rate. Excessive air flow rate may cause the heat dissipation of the die-casting machine surface to be too fast, resulting in local temperature being too low, affecting the normal operating temperature range of the equipment, especially for some temperature-sensitive components, such as electronic components, hydraulic components, etc. In addition, strong airflow may also carry impurities such as dust, accelerate the wear and corrosion of the equipment surface, reduce the reliability of the equipment, and thus negatively affect the environmental impact index; a large average environmental humidity will make the raw materials used for die-casting, such as metal ingots and release agents, damp, affecting their performance and use effects. Therefore, through a detailed analysis of each parameter in the environmental impact index, we can understand the impact of ambient temperature on molds and molten metal, and by adjusting the workshop temperature control system, ensure uniform cooling of castings and reduce product deformation, cracks and other defects.

[0053] Furthermore, the operating status data of each area of ​​the die-casting machine specifically includes the average cooling temperature, average cooling water flow, average heating power, average injection pressure and average mold temperature of each area of ​​the die-casting machine during the operating cycle.

[0054] It should be explained that the above-mentioned average cooling temperature is obtained by monitoring the cooling water temperature through temperature sensors installed at the inlet and outlet of the cooling water circuit, and calculating the average value within the monitoring period, thereby obtaining the average cooling temperature; the average cooling water flow rate is obtained by monitoring the cooling water flow rate through a flow sensor installed in the main pipeline of the cooling water circuit, and calculating the average value within the monitoring period, thereby obtaining the average cooling water flow rate; the average heating power is obtained by monitoring the heating power and calculating the average value within the monitoring period through a power sensor, thereby obtaining the average heating power; the average injection pressure can be obtained by monitoring the injection pressure through a pressure sensor, and calculating the average value within the monitoring period, thereby obtaining the average injection pressure; the average mold temperature can be obtained by monitoring the mold temperature through a temperature sensor, and calculating the average value within the monitoring period, thereby obtaining the average mold temperature; in this embodiment, the operating cycle refers to the time period from the start of the die-casting machine to the completion of a complete die-casting process; the various areas of the die-casting machine include but are not limited to the mold area, injection area, clamping area, ejection area, hydraulic area and heating area, etc.

[0055] The average cooling temperature of each area of ​​the die-casting machine during the operation cycle is processed with the cooling reference temperature of the die-casting machine to obtain the cooling temperature deviation value of each area of ​​the die-casting machine during the operation cycle.

[0056] The average cooling water flow rate of each area of ​​the die-casting machine during the operation cycle is processed with the cooling water reference flow rate to obtain the cooling deviation water flow rate of each area of ​​the die-casting machine during the operation cycle.

[0057] Specifically, the specific analysis process of the state indicators of each area of ​​the die-casting mold is as follows: The average heating power of each area of ​​the die-casting machine during the operation cycle is processed with the heating reference power to obtain the heating deviation power of each area of ​​the die-casting machine during the operation cycle.

[0058] The injection pressure deviation value of each area of ​​the die-casting machine during the operation cycle is obtained by performing difference processing on the injection average pressure of each area of ​​the die-casting machine during the operation cycle and the injection reference pressure.

[0059] The cooling temperature deviation value, cooling deviation water flow, heating deviation power, injection pressure deviation value and average temperature of each area of ​​the die-casting machine during the operation cycle are comprehensively analyzed to obtain the status index of each area of ​​the die-casting mold. The status index of each area of ​​the die-casting mold is a comprehensive quantitative index used to evaluate the overall status of each area of ​​the mold during the operation cycle.

[0060] The specific analysis method of the state indicators of each area of ​​the die-casting mold is as follows: ; In the formula, For die casting mold Regional status indicators, is the number of each area of ​​the die casting machine, , n is the total number of areas of the die casting machine, is a natural constant, For die casting machine The cooling temperature deviation value of each area during the operation cycle, The cooling temperature tolerance value preset in the control database, The weight factor corresponding to the cooling temperature deviation value unit value preset in the control database, For die casting machine The cooling deviation water flow of each zone during the operation cycle, The cooling allowable deviation water flow preset for the control database, The weight factor corresponding to the cooling deviation water flow unit value preset in the control database, For die casting machine The heating deviation power of each zone during the operation cycle, The allowable deviation power of heating preset in the control database, The weight factor corresponding to the heating deviation power unit value preset in the control database, For die casting machine The injection pressure deviation value of each area during the operation cycle, The injection pressure tolerance value preset in the control database is The weight factor corresponding to the unit value of the injection pressure deviation value preset in the control database, For die casting machine The average mold temperature of each area during the operation cycle, To control the mold reference temperature preset in the database, The weight factor corresponding to the unit value of the average mold temperature preset in the control database.

[0061] It needs to be explained that the above-mentioned cooling temperature deviation value refers to the difference between the cooling average temperature and the cooling reference temperature of the die-casting machine; the preset cooling temperature allowable deviation value refers to the maximum allowable difference range value between the cooling temperature and the reference temperature; the cooling water flow deviation value refers to the difference between the cooling average water flow and the cooling water reference flow; the preset cooling allowable deviation water flow rate refers to the maximum allowable difference range value between the cooling water flow rate and the reference flow rate; the heating deviation power refers to the difference between the average heating power and the heating reference power; the preset heating allowable deviation power refers to the maximum allowable difference range value between the heating power and the reference power; the injection pressure deviation value refers to the difference between the injection average pressure and the injection reference pressure; the preset injection pressure allowable deviation value refers to the maximum allowable difference range value between the injection pressure and the reference pressure allowable range value; mold average temperature refers to the average temperature of the mold surface during the operation cycle; the preset mold reference temperature refers to the target temperature of the mold under ideal conditions, which is used to control the thermal balance of the mold and the quality of the casting; in this embodiment, the weight factor corresponding to the preset cooling temperature deviation unit value, the weight factor corresponding to the preset cooling deviation water flow unit value, the weight factor corresponding to the preset heating deviation power unit value, the weight factor corresponding to the preset injection pressure deviation unit value and the weight factor corresponding to the preset mold average temperature unit value respectively refer to the degree of influence of the cooling temperature deviation unit value, the cooling deviation water flow unit value, the heating deviation power unit value, the injection pressure deviation unit value and the mold average temperature unit value on the regional status index.

[0062] In this embodiment, the cooling temperature deviation value is large, even greater than the preset cooling temperature allowable deviation value, which will cause uneven thermal stress distribution in various parts of the mold, large thermal expansion in the local overheating area, and large contraction in the over-cooling area; a large cooling deviation water flow rate, even greater than the preset cooling allowable deviation water flow rate, will cause some areas of the mold to be overcooled, while other areas will be insufficiently cooled; a large heating deviation power, even greater than the preset heating allowable deviation power, will cause the local temperature of the mold to be too high, resulting in uneven expansion of the mold material and deformation; a large injection pressure deviation value, even greater than the preset injection pressure allowable deviation value , which may cause the pressure on the mold to exceed the designed strength, especially in the weak parts of the mold; when the average mold temperature is higher or lower, that is, when it deviates greatly from the preset mold reference temperature, the average mold temperature is too high, and the size of the casting changes greatly when it cools and shrinks, making it difficult to ensure dimensional accuracy; when the temperature is too low, the molten metal solidifies too quickly and may not be able to fill the fine structure of the mold, which also affects the dimensional accuracy; therefore, through a detailed analysis of each parameter in the state indicators of each area of ​​the die-casting mold, the influence of the thermal state of the mold on the shrinkage of the casting can be accurately grasped, and the mold temperature can be adjusted to be uniform and stable, thereby ensuring that the casting size is closer to the design value and improving the dimensional accuracy.

[0063] Specifically, the state indicators of each area of ​​the die-casting mold are compared with the die-casting mold state indicator thresholds preset in the control database to obtain a comparison result, and finally the temperature is controlled according to the comparison result. The specific comparison process is: If the state index of a certain area of ​​the die-casting mold is greater than or equal to the die-casting mold state index threshold preset in the control database, the comparison result is recorded as the first comparison result.

[0064] If the state index of a certain area of ​​the die-casting mold is less than the die-casting mold state index threshold preset in the control database, the comparison result is recorded as the second comparison result.

[0065] It needs to be explained that when the state index of a certain area of ​​the die-casting mold is greater than or equal to the die-casting mold state index threshold preset in the control database, it means that the state of the area is within a relatively ideal range. From the temperature point of view, it may mean that the cooling system in this area works well and can effectively take away the heat, so that the temperature is maintained in a suitable range, which helps the metal liquid to solidify and form smoothly in this area; when the state index of a certain area of ​​the die-casting mold is less than the die-casting mold state index threshold preset in the control database, it means that the state of this area deviates from the expected range for normal operation.

[0066] When the comparison result is the second comparison result, the temperature is controlled.

[0067] The specific control process of controlling the temperature may be to increase the flow rate of cooling water, enhance the heat exchange efficiency, reduce the mold temperature, or to increase the temperature by turning on an auxiliary heating device.

[0068] In this embodiment, temperature control can be achieved by increasing the flow rate of cooling water and enhancing the heat exchange efficiency, thereby taking away more heat and reducing the mold temperature. For example, in some die-casting molds, by adjusting the valve opening on the cooling water pipeline and increasing the flow rate of cooling water, the temperature of the high-temperature area of ​​the mold can be effectively reduced. At the same time, the cooling pipeline needs to be inspected and cleaned to ensure that the cooling water can flow smoothly in the pipeline to ensure the normal operation of the cooling system. If the temperature in this area is too low, it is necessary to turn on the auxiliary heating device to increase the temperature. For example, a heating rod is installed in the mold or induction heating is used to heat the lower temperature area to a suitable temperature range to ensure that the molten metal can be well filled and formed. At the same time, the power of the heating system is accurately adjusted according to the actual temperature conditions, and the temperature of the area is monitored in real time by a temperature sensor and fed back to the control system. The control system automatically adjusts the heating power to keep the temperature within a preset range.

[0069] Reference Figure 2As shown, the second aspect of the present invention provides a system for an intelligent control method of die casting machine mold temperature, comprising: a die casting machine historical production status analysis module, an environmental impact analysis module, a die casting machine status acquisition module and a control database.

[0070] The die-casting machine historical production status analysis module is connected to the environmental impact analysis module, the environmental impact analysis module is connected to the die-casting machine status acquisition module, and the die-casting machine historical production status analysis module, the environmental impact analysis module and the die-casting machine status acquisition module are all connected to the control database.

[0071] The die-casting machine historical production status analysis module is used to obtain the historical operation data of the die-casting machine during its historical operation process, analyze and obtain the die-casting machine historical operation status index, match the die-casting machine historical operation status index with the die-casting machine reference operation data corresponding to each die-casting machine historical operation status index interval preset in the control database, and obtain the die-casting machine reference operation data.

[0072] The environmental impact analysis module is used to obtain environmental data of the area where the die-casting machine belongs, analyze and obtain an environmental impact index, match the environmental impact index with the die-casting machine reference temperature corresponding to each environmental impact index interval preset in the control database, and obtain the die-casting machine reference temperature.

[0073] The die-casting machine status acquisition module is used to monitor the operating status of each area of ​​the die-casting machine mold in real time, obtain the operating status data of each area of ​​the die-casting machine, comprehensively analyze the operating status data of each area of ​​the die-casting machine, the die-casting machine reference operating data and the die-casting machine reference temperature, obtain the status index of each area of ​​the die-casting mold, and compare it with the die-casting mold status index threshold preset in the control database to obtain a comparison result, and finally perform temperature control according to the comparison result.

[0074] The control database is used to store the die-casting machine reference operation data corresponding to the preset historical operation status index intervals of each die-casting machine, the die-casting machine reference temperature corresponding to the preset environmental impact index interval, the preset die-casting mold state index threshold, the preset reference injection pressure, the weight factor corresponding to the preset average injection pressure unit value, the preset injection reference speed, the weight factor corresponding to the average injection speed unit value preset in the database, the preset cooling reference water temperature, the weight factor corresponding to the preset average cooling water temperature unit value, the preset mold surface reference temperature, the weight factor corresponding to the preset mold surface average temperature unit value, the preset mold reference heat capacity, the weight factor corresponding to the preset mold average heat capacity unit value, the preset environmental reference temperature, the preset environmental reference vibration intensity, the preset electromagnetic reference interference intensity, and the preset environmental temperature allowable deviation value , the weight factor corresponding to the preset unit value of the ambient temperature deviation value, the preset allowable deviation value of the ambient vibration intensity, the weight factor corresponding to the preset unit value of the ambient vibration intensity deviation value, the weight factor corresponding to the preset unit value of the electromagnetic interference intensity deviation value, the weight factor corresponding to the preset unit value of the air average flow rate, the weight factor corresponding to the preset unit value of the ambient average humidity, the preset allowable deviation value of the cooling temperature, the weight factor corresponding to the preset unit value of the cooling temperature deviation value, the preset allowable deviation water flow rate of the cooling, the weight factor corresponding to the preset unit value of the cooling deviation water flow, the preset allowable deviation power of the heating, the weight factor corresponding to the preset unit value of the heating deviation power, the preset allowable deviation value of the injection pressure, the weight factor corresponding to the preset unit value of the injection pressure deviation, and the weight factor corresponding to the preset unit value of the mold average temperature, etc.

[0075] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined in this specification, they should all fall within the protection scope of the present invention.

Claims

1. A die-casting machine mold temperature intelligent control method, characterized in that: include: S1. Analysis of historical production status of die-casting machine: Obtain historical operation data of die-casting machine in historical operation process, analyze and obtain historical operation status index of die-casting machine, match historical operation status index of die-casting machine with reference operation data of die-casting machine corresponding to historical operation status index interval of each die-casting machine preset in control database, and obtain reference operation data of die-casting machine; S2. Environmental impact analysis: Obtain environmental data of the area to which the die-casting machine belongs, analyze and obtain an environmental impact index, match the environmental impact index with the die-casting machine reference temperature corresponding to each environmental impact index interval preset in the control database, and obtain the die-casting machine reference temperature; S3. Die-casting machine status acquisition: Real-time monitoring of the operating status of each area of ​​the die-casting machine mold, obtaining the operating status data of each area of ​​the die-casting machine, and comprehensively analyzing the operating status data of each area of ​​the die-casting machine, the die-casting machine reference operating data and the die-casting machine reference temperature to obtain the status indicators of each area of ​​the die-casting mold, and compare them with the die-casting mold status indicator thresholds preset in the control database to obtain the comparison results, and finally perform temperature control based on the comparison results.

2. According to claim 1, a die-casting machine mold temperature intelligent control method is characterized in that: The historical operation data specifically includes the average injection pressure, average injection speed, average cooling water temperature, average mold surface temperature and average mold heat capacity of the die-casting machine during the historical operation cycle.

3. According to claim 2, a die-casting machine mold temperature intelligent control method is characterized in that: The specific analysis process of the die-casting machine historical operation status index is as follows: Standardize the average injection pressure, average injection speed, average cooling water temperature, average mold surface temperature and average mold heat capacity of the die-casting machine during its historical operation cycle; The average injection pressure, average injection speed, average cooling water temperature, average mold surface temperature and average mold heat capacity of the die-casting machine in the historical operation cycle after the standardized processing are recorded as the standardized average injection pressure, the standardized average injection speed, the standardized average cooling water temperature, the standardized average mold surface temperature and the standardized average mold heat capacity of the die-casting machine in the historical operation cycle respectively; The standardized average injection pressure, standardized average injection speed, standardized average cooling water temperature, standardized average mold surface temperature and standardized average mold heat capacity of the die-casting machine in the historical operation cycle are comprehensively analyzed to obtain the historical operation status index of the die-casting machine. The specific analysis method is as follows: ； In the formula, is the historical operating status index of the die casting machine, is a natural constant, is the normalized mean injection pressure, The reference injection pressure preset in the control database, The weight factor corresponding to the average injection pressure unit value preset in the control database, is the normalized average injection speed, To control the injection reference speed preset in the database, The weight factor corresponding to the average injection speed unit value preset in the control database, To standardize the average cooling water temperature, The cooling reference water temperature preset in the control database, The weight factor corresponding to the average cooling water temperature unit value preset in the control database, is the standardized average mold surface temperature, To control the mold surface reference temperature preset in the database, The weight factor corresponding to the unit value of the average mold surface temperature preset in the control database, is the standardized average heat capacity of the mold, The mold reference heat capacity preset for the control database, The weight factor corresponding to the unit value of the average heat capacity of the mold preset in the control database.

4. According to claim 3, a die-casting machine mold temperature intelligent control method is characterized in that: The die-casting machine reference operation data specifically includes the die-casting machine cooling reference temperature, cooling water reference flow, heating reference power and injection reference pressure.

5. According to claim 1, a die-casting machine mold temperature intelligent control method is characterized in that: The environmental data of the area to which the die-casting machine belongs, specifically including the average environmental temperature, average environmental vibration intensity, average electromagnetic interference intensity, average air flow rate and average environmental humidity of the area to which the die-casting machine belongs during the monitoring period; The difference between the average ambient temperature of the area to which the die-casting machine belongs during the monitoring period and the ambient reference temperature preset in the control database is processed to obtain the ambient temperature deviation value of the area to which the die-casting machine belongs during the monitoring period.

6. According to claim 1, a die-casting machine mold temperature intelligent control method is characterized by: The specific analysis process of the environmental impact index is as follows: Perform difference processing on the average environmental vibration intensity of the area to which the die-casting machine belongs during the monitoring period and the environmental reference vibration intensity preset in the control database to obtain the environmental vibration intensity deviation value of the area to which the die-casting machine belongs during the monitoring period; Perform difference processing on the average electromagnetic interference intensity of the area to which the die-casting machine belongs during the monitoring period and the electromagnetic reference interference intensity preset in the control database to obtain the electromagnetic interference intensity deviation value of the area to which the die-casting machine belongs during the monitoring period; The environmental impact index is obtained by comprehensively analyzing the ambient temperature deviation value, ambient vibration intensity deviation value, electromagnetic interference intensity deviation value, average air flow rate and average ambient humidity in the area where the die-casting machine is located during the monitoring period.

7. The method for intelligently controlling mold temperature of a die-casting machine according to claim 6, characterized in that: The operating status data of each area of ​​the die-casting machine specifically includes the average cooling temperature, average cooling water flow, average heating power, average injection pressure and average mold temperature of each area of ​​the die-casting machine during the operating cycle; The average cooling temperature of each area of ​​the die-casting machine during the operation cycle is processed with the cooling reference temperature of the die-casting machine to obtain the cooling temperature deviation value of each area of ​​the die-casting machine during the operation cycle; The average cooling water flow rate of each area of ​​the die-casting machine during the operation cycle is processed with the cooling water reference flow rate to obtain the cooling deviation water flow rate of each area of ​​the die-casting machine during the operation cycle.

8. The method for intelligently controlling mold temperature of a die-casting machine according to claim 7, characterized in that: The specific analysis process of the state indicators of each area of ​​the die-casting mold is as follows: Performing difference processing on the average heating power of each area of ​​the die-casting machine during the operation cycle and the heating reference power to obtain the heating deviation power of each area of ​​the die-casting machine during the operation cycle; Performing difference processing on the average injection pressure of each area of ​​the die-casting machine during the operation cycle and the injection reference pressure to obtain the injection pressure deviation value of each area of ​​the die-casting machine during the operation cycle; The cooling temperature deviation value, cooling deviation water flow, heating deviation power, injection pressure deviation value and average mold temperature of each area of ​​the die-casting machine during the operation cycle are comprehensively analyzed to obtain the status indicators of each area of ​​the die-casting mold.

9. The die casting machine mold temperature intelligent control method according to claim 1, characterized in that: The state indicators of each area of ​​the die-casting mold are compared with the die-casting mold state indicator thresholds preset in the control database to obtain a comparison result, and finally the temperature is controlled according to the comparison result. The specific comparison process is: If the state index of a certain area of ​​the die-casting mold is greater than or equal to the die-casting mold state index threshold preset in the control database, the comparison result is recorded as the first comparison result; If the state index of a certain area of ​​the die-casting mold is less than the die-casting mold state index threshold preset in the control database, the comparison result is recorded as the second comparison result; When the comparison result is the second comparison result, the temperature is controlled; The specific control process of controlling the temperature may be to increase the flow rate of cooling water, enhance the heat exchange efficiency, reduce the mold temperature, or to increase the temperature by turning on an auxiliary heating device.

10. A system using a die-casting machine mold temperature intelligent control method as claimed in any one of claims 1 to 9, characterized in that: include: The die-casting machine historical production status analysis module is used to obtain the historical operation data of the die-casting machine during the historical operation process, analyze and obtain the historical operation status index of the die-casting machine, match the historical operation status index of the die-casting machine with the die-casting machine reference operation data corresponding to each die-casting machine historical operation status index interval preset in the control database, and obtain the die-casting machine reference operation data; An environmental impact analysis module is used to obtain environmental data of the area to which the die-casting machine belongs, analyze and obtain an environmental impact index, match the environmental impact index with the die-casting machine reference temperature corresponding to each environmental impact index interval preset in the control database, and obtain the die-casting machine reference temperature; The die-casting machine status acquisition module is used to monitor the operating status of each area of ​​the die-casting machine mold in real time, obtain the operating status data of each area of ​​the die-casting machine, comprehensively analyze the operating status data of each area of ​​the die-casting machine, the die-casting machine reference operating data and the die-casting machine reference temperature, obtain the status indicators of each area of ​​the die-casting mold, and compare them with the die-casting mold status indicator threshold preset in the control database to obtain the comparison result, and finally perform temperature control based on the comparison result.

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