Spraying-free injection molding system and method for switch socket

Abstract

The invention relates to the technical field of injection molding processes, and discloses a spraying-free injection molding system and method for a switch socket, and the system comprises a collection module which is configured to collect the oil way temperature and the environment temperature during injection molding; adjusting the collection period according to the oil way temperature and the environment temperature; the abnormity judgment module is configured to analyze and judge whether the oil way temperature has an abnormal value or not; if the abnormal value exists, operation data of the injection molding equipment are extracted and stored; the processing module is configured to conduct primary adjustment on a preset target temperature threshold value according to the oil way temperature and the environment temperature; performing secondary adjustment on the target temperature threshold value according to the change rate of the temperature to obtain the adjusted target temperature threshold value, and recording the adjusted target temperature threshold value as a correction threshold value; and the regulation and control judgment module is configured to compare the oil way temperature with the correction threshold value and judge the temperature increase and decrease of the oil way temperature. The method automatically adapts to the change of the production environment, dynamically adjusts the temperature control strategy, effectively prevents the temperature abnormity of the oil way, and improves the product quality.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding technology, and in particular to a spray-free injection molding system and method for a switch socket. Background Art

[0002] With the widespread application of injection molding technology, the temperature control problem in the injection molding process has received increasing attention. Especially in terms of oil circuit temperature control, traditional temperature control systems often have problems such as delayed response, inaccurate temperature adjustment, and difficulty in warning of temperature anomalies. These problems not only affect the stability of the injection molding process and the quality of the product, but may also cause equipment failure, increase production costs and downtime.

[0003] In the actual production process, the oil circuit temperature is affected by many factors, including ambient temperature, changes in the injection molding process, and the use of the equipment. Therefore, how to accurately collect and adjust the oil circuit temperature to achieve precise temperature control is an important challenge in modern injection molding production.

[0004] At present, most of the existing temperature control systems use a fixed temperature control threshold and periodic data collection method. This approach cannot effectively adapt to the changes in oil circuit temperature during the production process, and it is difficult to detect potential temperature anomalies in time. Therefore, there is an urgent need for an intelligent system that can dynamically adjust the temperature collection cycle and temperature threshold, and detect and handle oil circuit temperature anomalies in time. Summary of the invention

[0005] In view of this, the present invention proposes a spray-free injection molding system and method for switches and sockets, aiming to solve the problems of temperature lag, inaccurate adjustment and difficulty in warning abnormalities in traditional temperature control systems in current technology.

[0006] The present invention proposes a spray-free injection molding system for a switch socket, comprising: a collection module, configured to collect the oil circuit temperature and the ambient temperature during injection molding; adjusting the collection cycle according to the oil circuit temperature and the ambient temperature; an abnormality judgment module, configured to obtain the oil circuit temperature within the adjusted collection cycle, establish a temperature matrix according to the time series of the oil circuit temperature, analyze the temperature matrix to determine whether the oil circuit temperature has an abnormal value; if an abnormal value exists, extract the operation data of the injection molding equipment and store it; a processing module, configured to adjust the preset target temperature threshold once according to the oil circuit temperature and the ambient temperature; calculate the change rate of the adjacent oil circuit temperatures in the temperature matrix and adjust the target temperature threshold twice according to the change rate, obtain the adjusted target temperature threshold and record it as a correction threshold; a control judgment module, configured to compare the oil circuit temperature with the correction threshold, when the oil circuit temperature is less than or equal to the minimum value of the correction threshold, determine to increase the temperature of the oil circuit, when the oil circuit temperature is greater than the maximum value of the correction threshold, determine to cool the oil circuit temperature.

[0007] Furthermore, when the collection period is adjusted according to the oil circuit temperature and the ambient temperature, it includes: presetting the maximum difference between the oil circuit temperature and the ambient temperature, comparing the absolute value of the difference between the oil circuit temperature and the ambient temperature with the maximum difference, counting the number of absolute values ​​greater than or equal to the maximum difference, adjusting the collection period according to the number, and obtaining a corrected collection period.

[0008] Further, when the collection period is adjusted according to the quantity, the modified collection period has the following relationship: ; in, To correct the collection cycle, is the collection period before adjustment, N is the number of absolute values ​​greater than or equal to the maximum difference, N is an integer, k is the adjustment sensitivity coefficient, k represents the influence of the number on the correction collection period, 0.1≤k≤0.3.

[0009] Furthermore, the adjustment sensitivity coefficient is in direct proportion to the number of the absolute values ​​greater than or equal to the maximum difference. If the abnormal value exists, the adjustment sensitivity coefficient has the following relationship: ; in, is the preset maximum acceptable outlier value; if the outlier value does not exist, k is 0.1.

[0010] Furthermore, when analyzing the temperature matrix to determine whether there is an abnormal value in the oil circuit temperature, it includes: within the data analysis period, collecting the data of the oil circuit temperature according to the adjusted collection period, and dividing it into several data groups, arranging all the data groups in sampling time order to form a two-dimensional time series matrix, randomly selecting a data point as a point to be judged, the point to be judged represents the oil circuit temperature value at a specific time and position, taking the selected point to be judged as the center of the circle, setting the diameter of the center of the circle as the judgment range, performing statistics on all the data points within the judgment range, calculating the average value, calculating the absolute deviation between the value of the point to be judged and the average value, setting a deviation threshold, and when the deviation of the point to be judged is greater than or equal to the deviation threshold, judging the judgment point to be an abnormal value; otherwise, it is regarded as a normal point.

[0011] Further, when the processing module performs a one-time adjustment on the preset target temperature threshold according to the oil circuit temperature and the ambient temperature, the target temperature threshold after the one-time adjustment has the following relationship: ; ; in, is the upper limit of the target temperature threshold after one adjustment. is the upper limit of the target temperature threshold, is the first adjustment coefficient, is the ambient temperature, The preset optimal oil circuit temperature; is the lower limit of the target temperature threshold after one adjustment. The lower limit of the target temperature threshold.

[0012] Further, when the processing module calculates the change rate of the adjacent oil circuit temperatures in the temperature matrix and performs a secondary adjustment on the target temperature threshold according to the change rate, it includes: ; ; ; in, is the upper limit of the target temperature threshold after secondary adjustment, is the second adjustment coefficient, Adjust the sensitivity factor for the threshold, is the lower limit of the target temperature threshold after secondary adjustment, is the weight of the rate of change, =1, n is the total number of oil circuit temperature change rates, is the rate of change of the i-th oil circuit temperature.

[0013] Further, when it is determined that the oil circuit temperature is to be increased, it includes: ; in, is the heating rate, in °C / s; is the target temperature in °C; is the current oil circuit temperature, in °C; is the heating efficiency coefficient, unit: ℃ / s*K; It is the temperature adjustment correction factor, which is used to reflect the hysteresis of the system response; is the temperature attenuation coefficient, in units of 1 / s, which controls the attenuation of the heating rate over time; is the time in seconds.

[0014] Further, when determining to reduce the oil circuit temperature, it includes: ; in, is the cooling rate, unit is ℃ / s; is the cooling efficiency coefficient, in ℃ / s*K, which reflects the capacity of the cooling system; is the cooling correction factor, which is used to reflect the response hysteresis of the cooling system; is the cooling attenuation coefficient, in units of 1 / s, which controls the degree to which the cooling rate decays over time.

[0015] Compared with the prior art, the invention has the following beneficial effects: by collecting oil circuit temperature and ambient temperature data and dynamically adjusting the collection cycle, the system can adapt to temperature changes, avoiding the temperature lag and inaccuracy problems in traditional temperature control systems. The adjustment of the temperature collection cycle is based on the real-time difference, making the temperature control more flexible and able to respond to temperature changes in a timely manner.

[0016] By establishing a temperature matrix and combining it with time series data, it is possible to accurately determine whether there are abnormal values ​​in the oil circuit temperature. For detected abnormal values, the system can promptly extract equipment operation data for storage, effectively warn of potential temperature control problems, and reduce equipment failures and downtime.

[0017] Through the mechanism of adjusting the target temperature threshold twice (primary adjustment and secondary adjustment), a more precise temperature control strategy is achieved based on the changes in oil circuit temperature and ambient temperature. This can cope with complex injection molding production conditions and maintain stable operation of the equipment.

[0018] The system can not only increase or decrease the temperature according to the temperature control needs, but also adjust the control process according to the set heating / cooling rate and the response characteristics of the equipment. This precise adjustment ensures that the oil circuit temperature during the injection molding process is always within the ideal range, avoiding the problem of excessive heating or cooling.

[0019] The proportional relationship between the system's adjustment sensitivity coefficient and the abnormal value makes the temperature control system more sensitive when an abnormality occurs, so that it can respond and make adjustments in a timely manner. The adjustment mechanism is continuously optimized according to the specific temperature changes and the equipment's responsiveness, ensuring the temperature control accuracy during the injection molding process.

[0020] On the other hand, the present invention provides a spray-free injection molding system and method for a switch socket, which is applied to the spray-free injection molding system of the switch socket, and includes: S1: collecting the oil circuit temperature and the ambient temperature during injection molding; and adjusting the collection cycle according to the oil circuit temperature and the ambient temperature.

[0021] S2: Obtain the oil circuit temperature within the adjusted acquisition period, establish a temperature matrix for the oil circuit temperature according to the time series, analyze the temperature matrix to determine whether there is an abnormal value in the oil circuit temperature; if there is an abnormal value, extract the operation data of the injection molding equipment and store it.

[0022] S3: adjusting the preset target temperature threshold according to the oil circuit temperature and the ambient temperature; The change rates of the adjacent oil circuit temperatures in the temperature matrix are calculated and the target temperature threshold is adjusted twice according to the change rates to obtain an adjusted target temperature threshold and record it as a modified threshold.

[0023] S4: Compare the oil circuit temperature with a correction threshold value. When the oil circuit temperature is less than or equal to the minimum value of the correction threshold value, determine to increase the oil circuit temperature. When the oil circuit temperature is greater than the maximum value of the correction threshold value, determine to reduce the oil circuit temperature.

[0024] It is understandable that the above-mentioned spray-free injection molding system and method for switch sockets have the same beneficial effects, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings: Figure 1 A schematic diagram of a static mold core and a front mold core of a spray-free injection molding device for a switch socket provided in an embodiment of the present invention.

[0026] Figure 2 A schematic diagram of a static mold core and a rear mold core of a spray-free injection molding device for a switch socket provided in an embodiment of the present invention.

[0027] Figure 3 A schematic diagram of a movable mold core and a front mold core of a spray-free injection molding device for a switch socket provided in an embodiment of the present invention.

[0028] Figure 4 A schematic diagram of a movable mold core and a rear mold core of a spray-free injection molding device for a switch socket provided in an embodiment of the present invention.

[0029] Figure 5 A schematic diagram of the three-dimensional structure of an ejector pin provided in an embodiment of the present invention.

[0030] Figure 6 A schematic diagram of the planar structure of an ejector pin provided in an embodiment of the present invention.

[0031] Figure 7 A functional block diagram of a spray-free injection molding system for a switch socket provided in an embodiment of the present invention.

[0032] Figure 8 The present invention provides a flow chart of a spray-free injection molding method for a switch socket.

[0033] In the figure, 10, front mold core of static mold core; 11, oil circuit; 12, cooling water circuit; 20, rear mold core of static mold core; 21, ejector hole of static mold core; 22, oil circuit of rear mold core; 30, front mold core of movable mold core; 40, rear mold core of movable mold core; 41, ejector hole of movable mold core; 50, ejector; 51, hanging table; 60, nozzle. DETAILED DESCRIPTION

[0034] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] The spray-free injection molding system of the switch socket of the present invention is applied to the following scenarios: Figure 1-6As shown, the spray-free injection molding device for the switch socket includes: a static mold core and a dynamic mold core, wherein the static mold core front mold core 10 is provided with a five-way oil circuit 11, and the static mold core rear mold core 20 is provided with a two-layer rear mold core oil circuit 22, to ensure that the actual temperature of each part of the static mold core is about 115 degrees, and the temperature difference of each part is within 5 degrees (if the temperature is uneven or low, inconsistent color difference, inconsistent brightness, and obvious weld line will occur), and the temperature of the dynamic mold core front mold core 30 and the dynamic mold core rear mold core 40 is about 70 degrees, which solves the problem of weld line and flow pattern on the surface of colored plastic parts. The surface adopts the smooth texture GF Charmilles spark machine texture to solve the wear resistance problem and achieve the spray-free effect. The tiger's mouth is made inverted because the static mold core temperature is high, which causes the mold to expand too much. The tiger's mouth is prone to cracking if it is made according to conventional methods, so the tiger's mouth is made inverted; a beryllium copper insert is made at 60 of the nozzle because the mold core temperature is too high and the main flow channel is difficult to cool. In order to shorten the cooling time, beryllium copper is used for cooling at 60 of the nozzle to improve injection molding efficiency.

[0036] The ejector pin 50 is ejected through the ejector pin hole 21 of the static mold core and the ejector pin hole 41 of the dynamic mold core. All ejector pins 50 are used as hanging platform ejectors. The ejector pins will not move down. After the injection molding is completed, no stress will be generated on the surface to affect the appearance of the product. The three inclined surfaces of the hanging platform 51 are sealed with glue, and the three single sides of the lower side of the hanging platform 51 are left 0.05mm to prevent the ejector pin from being stuck during ejection. Because the temperature of the front mold is too high, the mold cannot be closed during injection molding, and brass graphite is required for the guide pin and guide sleeve; two sets of cooling water channels 12 are added to the outside of the static mold core, and two sets of oil channels are added to the dynamic mold plate for heating, and the temperature of the dynamic mold plate is increased to preserve the concentricity of the guide pin to solve the problem of not being able to close the mold.

[0037] See also Figure 7 As shown, an embodiment of the present invention provides a spray-free injection molding system for a switch socket, including: a collection module, configured to collect the oil circuit temperature and the ambient temperature during injection molding; adjust the collection period according to the oil circuit temperature and the ambient temperature; an abnormal judgment module, configured to obtain the oil circuit temperature within the adjusted collection period, establish a temperature matrix according to the time series of the oil circuit temperature, analyze the temperature matrix to determine whether there is an abnormal value in the oil circuit temperature; if there is an abnormal value, extract the operation data of the injection molding equipment and store it; a processing module, configured to adjust the preset target temperature threshold once according to the oil circuit temperature and the ambient temperature; calculate the change rate of adjacent oil circuit temperatures in the temperature matrix and adjust the target temperature threshold twice according to the change rate, obtain the adjusted target temperature threshold and record it as the correction threshold; a control judgment module, configured to compare the oil circuit temperature with the correction threshold, when the oil circuit temperature is less than or equal to the minimum value of the correction threshold, determine to increase the oil circuit temperature, when the oil circuit temperature is greater than the maximum value of the correction threshold, determine to cool the oil circuit temperature.

[0038] It should be noted that the acquisition module is responsible for collecting key data during the injection molding process, including oil circuit temperature and ambient temperature. Oil circuit temperature is a key factor affecting injection molding accuracy, while ambient temperature may affect the operation of the equipment and the fluidity of the material. By collecting these two temperature information in real time, the system can effectively reflect the working status of the temperature control system.

[0039] Adjust the collection cycle: Based on the collected temperature data, the system will adjust the collection cycle. If the temperature fluctuates greatly, the collection cycle may need to be shortened to monitor temperature changes more frequently; if the temperature is relatively stable, the collection cycle can be extended to optimize the system's operating efficiency.

[0040] Abnormality judgment module: This module uses the collected oil circuit temperature data to establish a temperature matrix and conduct analysis and judgment to detect whether there is a temperature abnormality. Temperature abnormality may be a precursor to system failure, so timely detection of abnormalities is the key to ensuring normal operation of equipment and production efficiency.

[0041] Abnormal value processing: If a temperature abnormality is detected, the system will automatically extract and store the relevant injection molding equipment operation data to provide data support for subsequent analysis and help perform fault analysis and preventive maintenance in the later stages of production.

[0042] Processing module: This module adjusts the preset target temperature threshold by analyzing the relationship between oil circuit temperature and ambient temperature. This adjustment takes into account the impact of ambient temperature on the injection molding process and ensures that the target temperature threshold is more in line with actual production needs. For example, an increase in ambient temperature may require a lower target temperature threshold to prevent equipment overheating.

[0043] One-time adjustment: The adjustment of the target temperature threshold is based on real-time data of oil circuit temperature and ambient temperature, allowing the system to optimize the temperature control settings according to the current operating conditions.

[0044] Secondary adjustment module (adjustment based on temperature change rate): This module further adjusts the target temperature threshold by calculating the change rate of the adjacent oil circuit temperature in the temperature matrix. This adjustment can more finely control the temperature threshold and avoid overheating or overcooling caused by excessive temperature fluctuations.

[0045] Change rate consideration: By considering the change rate of adjacent temperatures, the system can better predict the trend of oil circuit temperature and dynamically correct the target threshold, making the temperature control system more responsive and accurate.

[0046] Control judgment module: This module compares the adjusted target temperature threshold (i.e., correction threshold) with the real-time oil circuit temperature to determine whether heating or cooling is required. When the oil circuit temperature is lower than the minimum value of the correction threshold, the system will determine to heat up; conversely, if the oil circuit temperature exceeds the maximum value of the correction threshold, it will determine to cool down.

[0047] Heating / cooling control: By automatically adjusting the oil circuit temperature, the oil circuit temperature is always kept within the appropriate range. Proper temperature control can not only ensure the smooth progress of the injection molding process, but also avoid product quality degradation or equipment failure due to excessively high or low temperatures.

[0048] In some embodiments of the present application, when the collection period is adjusted according to the oil circuit temperature and the ambient temperature, it includes: pre-setting the maximum difference between the oil circuit temperature and the ambient temperature, comparing the absolute value of the difference between the oil circuit temperature and the ambient temperature with the maximum difference, counting the number of absolute values ​​greater than or equal to the maximum difference, adjusting the collection period according to the number, and obtaining a corrected collection period.

[0049] It should be noted that the adjustment of the collection cycle is optimized based on the change in the difference between the oil circuit temperature and the ambient temperature. Specifically, a maximum difference is pre-set for comparing the absolute value of the difference between the oil circuit temperature and the ambient temperature. This maximum difference is set to ensure that when the oil circuit temperature and the ambient temperature fluctuate greatly, the system can collect data more frequently, thereby improving the monitoring accuracy and response speed.

[0050] The maximum difference is a preset threshold used to determine the degree of change between the oil circuit temperature and the ambient temperature. If the difference between the oil circuit temperature and the ambient temperature exceeds this preset maximum difference, it means that there may be large temperature fluctuations or environmental changes, which may affect the stability of the injection molding process. In this case, the system will automatically increase the frequency of data collection to ensure that the temperature changes can be captured in time.

[0051] By counting the number of times the absolute value is greater than or equal to the maximum difference, the system can flexibly adjust the collection cycle according to the frequency of temperature fluctuations. If frequent temperature fluctuations occur, the system will shorten the collection cycle and increase the density of data collection to ensure that the changes in oil circuit temperature can be monitored in real time; if the difference is small or the fluctuation is small, the system can extend the collection cycle to reduce unnecessary resource consumption.

[0052] Correction of the collection cycle Based on the statistical results and the set sensitivity coefficient, the system will correct the collection cycle. If the difference between the oil circuit temperature and the ambient temperature is large, the system will shorten the collection cycle to improve the responsiveness of the temperature control system; conversely, if the difference is small, the collection cycle will be extended to optimize the use of system resources. In this way, the system can dynamically adjust the collection cycle according to the actual temperature difference and changes in the production environment, ensuring that data collection can ensure both accuracy and efficiency.

[0053] In some embodiments of the present application, when the collection period is adjusted according to the quantity, the modified collection period has the following relationship: ; in, To correct the collection cycle, is the collection period before adjustment, N is the number of absolute values ​​greater than or equal to the maximum difference, N is an integer, k is the adjustment sensitivity coefficient, k represents the influence of the number on the correction collection period, 0.1≤k≤0.3.

[0054] It should be noted that the adjustment formula for correcting the acquisition cycle is implemented by considering the "quantity" and the "adjustment sensitivity coefficient" so as to dynamically adjust the acquisition cycle to ensure the accurate response of the temperature control system.

[0055] Specifically, the modified acquisition cycle (adjusted acquisition cycle) is determined by the following factors: Original acquisition cycle (T0): This is the initial acquisition cycle before adjustment, which represents the data acquisition frequency of the system under normal conditions. Quantity (N): The quantity refers to the number of times the absolute value of the difference between the oil circuit temperature and the ambient temperature is greater than or equal to the maximum difference. This quantity reflects the fluctuation of the difference between the oil circuit temperature and the ambient temperature. A higher quantity means that the temperature fluctuates more, so more frequent data collection is required. Adjustment sensitivity coefficient (k): The adjustment sensitivity coefficient is an adjustment factor that controls the degree of influence of the quantity on the modified acquisition cycle. Its value range is 0.1 ≤ k ≤ 0.3. A larger k value means that when the difference between the oil circuit temperature and the ambient temperature is large, the acquisition cycle will be shortened more significantly. A smaller k value means that the acquisition cycle is adjusted less, that is, the system response may be more conservative in the case of large temperature fluctuations.

[0056] Based on this relationship, the system can automatically adjust the collection cycle according to the frequency of temperature fluctuations and flexibly respond to different temperature control requirements. For example, if the system detects more temperature fluctuations (i.e., N is large), it will shorten the collection cycle to ensure that the temperature changes can be captured in time; conversely, if the temperature fluctuations are small, the system will appropriately extend the collection cycle to avoid the waste of resources caused by frequent collection.

[0057] Therefore, by introducing the adjustment sensitivity coefficient k and the number N, this method can dynamically adjust the acquisition cycle to adapt to the characteristics of changes in oil circuit temperature and ambient temperature during the actual production process, thereby improving the response efficiency and stability of the temperature control system.

[0058] In some embodiments of the present application, the sensitivity coefficient is adjusted in direct proportion to the number of absolute values ​​greater than or equal to the maximum difference. If an abnormal value exists, the sensitivity coefficient is adjusted to have the following relationship: ; in, is the preset maximum acceptable outlier value; if there is no outlier, k is 0.1.

[0059] In some embodiments of the present application, when analyzing the temperature matrix to determine whether there are abnormal values ​​in the oil circuit temperature, it includes: within the data analysis period, collecting data on the oil circuit temperature according to the adjusted collection period, and dividing them into several data groups, arranging all the data groups in sampling time order to form a two-dimensional time series matrix, randomly selecting a data point as a point to be judged, the point to be judged represents the oil circuit temperature value at a specific time and position, taking the selected point to be judged as the center of the circle, setting the diameter of the center of the circle as the judgment range, performing statistics on all data points within the judgment range, calculating the average value, calculating the absolute deviation between the value of the point to be judged and the average value, setting a deviation threshold, and when the deviation of the point to be judged is greater than or equal to the deviation threshold, the judgment point is judged to be an abnormal value; otherwise, it is regarded as a normal point.

[0060] It should be noted that data collection and organization: First, within the set data analysis period, the oil circuit temperature data is continuously collected according to the adjusted collection period. Then, these data are divided into multiple data groups in chronological order, and all data groups are organized into a two-dimensional time series matrix for subsequent analysis.

[0061] Select the point to be judged: randomly select a data point from the temperature matrix as the point to be judged. The point to be judged represents the oil circuit temperature value at a specific time and location, which serves as the center of the analysis.

[0062] Set the judgment range and calculation deviation: Take the point to be judged as the center of the circle, set a certain range to determine the data points around the point (all data points within the judgment range). Calculate the average value of these data points by counting all data points within the judgment range.

[0063] Compare and judge abnormal values: Calculate the absolute deviation between the temperature value of the point to be judged and the average value of the data points within the judgment range. If the deviation value of the point to be judged is greater than or equal to the preset deviation threshold, the temperature value of the point is considered abnormal and marked as an abnormal value; otherwise, the point is considered a normal value.

[0064] By calculating the deviation between the oil circuit temperature and its surrounding data points, abnormal value judgment can be performed, so that abnormal data that does not conform to the normal temperature control range can be accurately identified, thereby achieving early warning of the temperature control system. This method has strong adaptability and accuracy, and can effectively improve the detection capability of temperature anomalies.

[0065] In some embodiments of the present application, when the processing module adjusts the preset target temperature threshold once according to the oil circuit temperature and the ambient temperature, the target temperature threshold after the adjustment has the following relationship: ; ; in, is the upper limit of the target temperature threshold after one adjustment. is the upper limit of the target temperature threshold, is the first adjustment coefficient, is the ambient temperature, The preset optimal oil circuit temperature; is the lower limit of the target temperature threshold after one adjustment. The lower limit of the target temperature threshold.

[0066] In some embodiments of the present application, when the processing module calculates the change rate of the adjacent oil circuit temperatures in the temperature matrix and performs a secondary adjustment on the target temperature threshold according to the change rate, it includes: ; ; ; in, is the upper limit of the target temperature threshold after secondary adjustment, is the second adjustment coefficient, Adjust the sensitivity factor for the threshold, is the lower limit of the target temperature threshold after secondary adjustment, is the weight of the rate of change, =1, n is the total number of oil circuit temperature change rates, is the rate of change of the i-th oil circuit temperature.

[0067] It should be noted that in the temperature matrix, there is a certain difference between each oil circuit temperature and its adjacent oil circuit temperature. By calculating the rate of change of these temperature differences, the rate of change of the oil circuit temperature can be quantified. This is of great significance for identifying whether the oil circuit temperature is rising or falling rapidly. The calculation of the temperature change rate can help the system identify the trend of temperature fluctuations, and then effectively determine whether further temperature adjustment is needed. The purpose of making a secondary adjustment to the target temperature threshold by the rate of change is to more accurately adapt to the changing trend of the oil circuit temperature. This can not only avoid unnecessary adjustments caused by instantaneous fluctuations in the oil circuit temperature, but also avoid equipment damage or instability in the production process caused by excessive temperature fluctuations. After the secondary adjustment, the system can flexibly adjust according to temperature changes to improve the response speed and accuracy of the temperature control system.

[0068] Upper limit correction: When the oil circuit temperature change rate is large, the system will adjust the upper limit of the target temperature threshold to ensure that the oil circuit temperature is not too high. By calculating the change rate and adjustment coefficient, the upper limit of the temperature threshold can be dynamically adjusted to make temperature control more accurate and avoid production problems caused by excessive temperature.

[0069] Lower limit correction: The adjustment of the lower limit ensures that the oil circuit temperature will not be too low due to changes in the external environment. The temperature control system dynamically adjusts the lower limit of the target temperature based on the calculation of the change rate and the adjustment coefficient to avoid equipment operation instability or product quality problems caused by too low temperature.

[0070] Threshold adjustment sensitivity coefficient: In the secondary adjustment process, the threshold adjustment sensitivity coefficient plays a key role. The role of the adjustment sensitivity coefficient is to determine the adjustment range of the target temperature threshold according to the rate of change of the oil circuit temperature. Specifically, the greater the rate of change of the oil circuit temperature, the greater the adjustment range, so as to quickly respond to temperature fluctuations, and vice versa. This flexible adjustment mechanism can improve the system's ability to respond to abnormal fluctuations in oil circuit temperature.

[0071] Change rate weight and flexibility of temperature adjustment: In the system design, the change rate weight is set to 1, indicating that the change rate of the oil circuit temperature has an equal influence on the threshold adjustment. This setting ensures that all temperature changes have equal weight, making the entire system more fair in temperature control and avoiding the situation where some temperature fluctuations are too large and ignored. At the same time, the calculation of the change rate can also provide a reference for the adjustment of other factors, thereby further improving the stability of the temperature control system.

[0072] Effect after secondary adjustment: The target temperature threshold after secondary adjustment provides a more refined temperature control solution, which can quickly adjust the temperature when the oil circuit temperature fluctuates greatly, avoiding equipment failure due to excessively high or low temperature. By dynamically adjusting the temperature threshold, the system can adapt to the changing trend of the oil circuit temperature and ensure the stability of the entire injection molding process.

[0073] For example, when the oil circuit temperature rises rapidly, the system will adjust the upper limit value so that the temperature control system can respond in time and reduce the risk of over-temperature. When the temperature drops, adjusting the lower limit value can avoid equipment damage or reduced efficiency caused by low temperature.

[0074] In summary, this secondary adjustment mechanism based on the rate of change not only improves the temperature control accuracy of the system, but also improves the temperature control system's ability to adapt to oil circuit temperature fluctuations in actual production. This design makes the temperature control system more intelligent and dynamic, and can adjust and optimize the temperature threshold in real time, ensuring the stability of the injection molding process and product quality, reducing production failures or equipment damage caused by temperature problems, thereby optimizing production efficiency and reducing costs.

[0075] In some embodiments of the present application, when determining to increase the oil circuit temperature, it includes: ; in, is the heating rate, in °C / s; is the target temperature in °C; is the current oil circuit temperature, in °C; is the heating efficiency coefficient, unit: ℃ / s*K; It is the temperature adjustment correction factor, which is used to reflect the hysteresis of the system response; is the temperature attenuation coefficient, in units of 1 / s, which controls the attenuation of the heating rate over time; is the time in seconds.

[0076] It should be noted that when judging to increase the oil circuit temperature, the system needs to comprehensively consider multiple parameters to adjust the heating rate to ensure that the oil circuit temperature can increase at an appropriate rate and reach the target temperature. The control of the heating process must not only consider the gap between the current oil circuit temperature and the target temperature, but also factors such as heating efficiency, system response lag, and temperature attenuation. Specifically, the heating process includes the following key factors: Heating rate: The heating rate refers to the change in oil circuit temperature per unit time, and the unit is °C / s. The heating rate is a key parameter for controlling the increase in oil circuit temperature and can determine the speed at which the temperature reaches the target temperature. In actual applications, the heating rate needs to be dynamically adjusted according to the system's heating efficiency and the gap between the oil circuit temperature and the target temperature to ensure that the oil circuit temperature gradually increases to the target temperature.

[0077] Target temperature and current oil circuit temperature: The target temperature refers to the ideal oil circuit temperature set by the system, that is, the final value that the oil circuit temperature should reach, in ° C. The target temperature is usually set according to the production process requirements or equipment operating conditions.

[0078] The current oil circuit temperature refers to the actual measured current oil circuit temperature in °C. The difference between the current oil circuit temperature and the target temperature determines the adjustment of the heating rate. The larger the difference, the faster the heating rate may be, so as to increase the oil circuit temperature to the target value as soon as possible.

[0079] Heating efficiency coefficient: The heating efficiency coefficient describes the heating efficiency of the oil circuit heating system, and the unit is °C / s*K. This coefficient takes into account the relationship between the amount of heat that the heating device can transfer during the heating process and the change in the oil circuit temperature. The higher the heating efficiency coefficient, the faster the heating process. When calculating the heating rate, it is necessary to adjust the heating rate according to the heating efficiency of the oil circuit.

[0080] Temperature adjustment correction factor: The temperature adjustment correction factor is used to reflect the hysteresis of the system response, that is, in actual operation, the temperature control system may not immediately respond to changes in oil circuit temperature. The hysteresis may be caused by equipment characteristics, sensor reaction time, or control system delays. The temperature adjustment correction factor can adjust the heating rate according to this hysteresis, allowing the system to adjust the oil circuit temperature more smoothly.

[0081] Temperature attenuation coefficient: The temperature attenuation coefficient is a coefficient that controls the attenuation of the heating rate over time, and the unit is 1 / s. As the heating process proceeds, the oil circuit temperature will tend to the target temperature, and the temperature difference will gradually decrease. Therefore, the heating rate needs to be gradually reduced to prevent temperature overshoot or system instability. The temperature attenuation coefficient adjusts the attenuation degree of the heating rate to ensure that the heating process will not be too fast or too slow, thereby stabilizing the temperature control system.

[0082] Time is an important factor in the heating process, and the unit is second (s). In the actual heating process, as time goes by, the change of oil circuit temperature will be affected by many factors, such as heating efficiency, temperature attenuation, etc. Therefore, the change of time will also affect the calculation of the heating rate.

[0083] In some embodiments of the present application, when determining to reduce the oil circuit temperature, it includes: ; in, is the cooling rate, unit is ℃ / s; is the cooling efficiency coefficient, in ℃ / s*K, which reflects the capacity of the cooling system; is the cooling correction factor, which is used to reflect the response hysteresis of the cooling system; is the cooling attenuation coefficient, in units of 1 / s, which controls the degree to which the cooling rate decays over time.

[0084] It should be noted that through the above dynamic adjustment method, the system can achieve the following effects: Avoid too fast cooling: Too fast cooling may cause temperature fluctuations, damage to equipment or unnecessary mechanical stress. The cooling rate gradually slows down over time to ensure a smooth cooling process.

[0085] Avoid slow cooling: If the cooling is too slow, it may cause the equipment to overheat, thus affecting the performance or service life of the equipment. Properly adjust the cooling efficiency and correction factor to ensure a moderate cooling rate.

[0086] Accurately reach the target temperature: Through precise control of the cooling rate, the system can ensure that the oil circuit temperature reaches the predetermined target temperature smoothly and stably, avoiding temperature overshoot or fluctuation caused by improper cooling.

[0087] See also Figure 8 As shown, an embodiment of the present invention provides a spray-free injection molding method for a switch socket, comprising: S1: Collect the oil circuit temperature and ambient temperature during injection molding; adjust the collection cycle according to the oil circuit temperature and ambient temperature.

[0088] S2: Obtain the oil circuit temperature within the adjusted acquisition period, establish a temperature matrix based on the time series of the oil circuit temperature, analyze the temperature matrix to determine whether there is an abnormal value in the oil circuit temperature; if there is an abnormal value, extract the operation data of the injection molding equipment and store it.

[0089] S3: Adjust the preset target temperature threshold according to the oil circuit temperature and the ambient temperature.

[0090] The change rate of the adjacent oil circuit temperatures in the temperature matrix is ​​calculated and the target temperature threshold is adjusted twice according to the change rate to obtain the adjusted target temperature threshold and record it as the corrected threshold.

[0091] S4: Compare the oil circuit temperature with the correction threshold. When the oil circuit temperature is less than or equal to the minimum value of the correction threshold, it is determined that the oil circuit temperature should be increased. When the oil circuit temperature is greater than the maximum value of the correction threshold, it is determined that the oil circuit temperature should be decreased.

[0092] It is understandable that the dynamic adjustment of the temperature control cycle: by collecting the oil circuit temperature and ambient temperature data during the injection molding process, and adjusting the collection cycle based on these two parameters, the collection process can flexibly respond to temperature changes. This dynamic adjustment can improve the sensitivity of temperature control, so that the temperature fluctuations during the injection molding process can be monitored and adjusted in time, thereby improving the stability of the production process.

[0093] Abnormal detection and early warning of oil circuit temperature: In the adjusted acquisition cycle, a temperature matrix is ​​established and the time series of oil circuit temperature is analyzed. Real-time monitoring of temperature abnormalities is achieved by judging whether there are abnormal values. If abnormal values ​​are found, the operation data of the injection molding equipment can be extracted and stored in time to provide data support for subsequent analysis and fault prediction. This method can effectively warn of potential fault problems, reduce downtime, and improve the operation efficiency of the equipment.

[0094] Accurate temperature threshold adjustment: The target temperature threshold is adjusted twice in the method: a preliminary adjustment based on the oil circuit temperature and the ambient temperature, and a second adjustment by analyzing the adjacent temperature change rate in the temperature matrix. This multi-level adjustment mechanism ensures that the temperature threshold can accurately adapt to temperature changes, avoiding excessive or insufficient temperature fluctuations, thereby improving temperature control accuracy.

[0095] Flexible temperature control adjustment: The method specifies a mechanism for raising or lowering the oil circuit temperature according to the corrected temperature threshold. By comparing the oil circuit temperature with the upper and lower limits of the corrected threshold, when the oil circuit temperature deviates from the ideal range, it can automatically determine whether to increase or decrease the temperature. This mechanism improves the flexibility of oil circuit temperature adjustment, making temperature control more precise, ensuring that the temperature during the injection molding process is always in an ideal state, and avoiding the impact of abnormal temperature on injection molding quality.

[0096] In summary, the method of the present invention enhances the temperature control accuracy in the injection molding process, improves the stability and reliability of the equipment, reduces production problems caused by abnormal temperature control, and ultimately improves production efficiency and product quality by means of dynamically adjusting the collection cycle, accurately adjusting the temperature threshold, detecting and warning of abnormal oil circuit temperature, and the like.

[0097] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0098] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0099] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0100] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A spray-free injection molding system for switches and sockets, characterized in that: include: A collection module is configured to collect the oil circuit temperature and the ambient temperature during injection molding; and adjust the collection cycle according to the oil circuit temperature and the ambient temperature; an abnormality judgment module, configured to obtain the oil circuit temperature within the adjusted acquisition period, establish a temperature matrix for the oil circuit temperature according to a time series, and analyze the temperature matrix to determine whether the oil circuit temperature has an abnormal value; If there are abnormal values, extract the operating data of the injection molding equipment and store it; A processing module is configured to adjust a preset target temperature threshold according to the oil circuit temperature and the ambient temperature; Calculating the change rate of the adjacent oil circuit temperatures in the temperature matrix and performing a secondary adjustment on the target temperature threshold according to the change rate to obtain an adjusted target temperature threshold and record it as a modified threshold; The control judgment module is configured to compare the oil circuit temperature with a correction threshold value. When the oil circuit temperature is less than or equal to the minimum value of the correction threshold value, it is determined that the oil circuit temperature should be increased; when the oil circuit temperature is greater than the maximum value of the correction threshold value, it is determined that the oil circuit temperature should be lowered.

2. The spray-free injection molding system for switch sockets according to claim 1, characterized in that: When the collection cycle is adjusted according to the oil circuit temperature and the ambient temperature, it includes: The maximum difference between the oil circuit temperature and the ambient temperature is preset, the absolute value of the difference between the oil circuit temperature and the ambient temperature is compared with the maximum difference, the number of absolute values ​​greater than or equal to the maximum difference is counted, and the collection period is adjusted according to the number to obtain a corrected collection period.

3. The spray-free injection molding system for switch sockets according to claim 2, characterized in that: When the collection period is adjusted according to the quantity, the modified collection period has the following relationship: ； in, To correct the collection cycle, is the collection period before adjustment, N is the number of absolute values ​​greater than or equal to the maximum difference, N is an integer, k is the adjustment sensitivity coefficient, k represents the influence of the number on the correction collection period, 0.1≤k≤0.

3.

4. The spray-free injection molding system for switch sockets according to claim 3, characterized in that: The adjustment sensitivity coefficient is in direct proportion to the number of absolute values ​​greater than or equal to the maximum difference. If the abnormal value exists, the adjustment sensitivity coefficient has the following relationship: ； in, is the preset maximum acceptable outlier value; If the abnormal value does not exist, k is 0.

1.

5. The spray-free injection molding system for switch sockets according to claim 1, characterized in that: When analyzing the temperature matrix to determine whether the oil circuit temperature has an abnormal value, it includes: During the data analysis cycle, the oil circuit temperature data is collected according to the adjusted collection cycle and divided into several data groups. All data groups are arranged in sampling time order to form a two-dimensional time series matrix. A data point is randomly selected as a point to be judged, and the point to be judged represents the oil circuit temperature value at a specific time and position. The selected point to be judged is used as the center of the circle, and the diameter of the center of the circle is set as the judgment range. Statistics are performed on all the data points within the judgment range, and the average value is calculated. The absolute deviation between the value of the point to be judged and the average value is calculated, and a deviation threshold is set. When the deviation of the point to be judged is greater than or equal to the deviation threshold, the judgment point is judged to be an abnormal value; otherwise, it is regarded as a normal point.

6. The spray-free injection molding system for switch sockets according to claim 1, characterized in that: When the processing module adjusts the preset target temperature threshold once according to the oil circuit temperature and the ambient temperature, it includes: The target temperature threshold after the adjustment has the following relationship: ； ； in, is the upper limit of the target temperature threshold after one adjustment. is the upper limit of the target temperature threshold, is the first adjustment coefficient, is the ambient temperature, The preset optimal oil circuit temperature; is the lower limit of the target temperature threshold after one adjustment. The lower limit of the target temperature threshold.

7. The spray-free injection molding system for switch sockets according to claim 6, characterized in that: When the processing module calculates the change rate of the adjacent oil circuit temperatures in the temperature matrix and performs secondary adjustment on the target temperature threshold according to the change rate, it includes: ； ； ； in, is the upper limit of the target temperature threshold after secondary adjustment, is the second adjustment coefficient, Adjust the sensitivity factor for the threshold, is the lower limit of the target temperature threshold after secondary adjustment, is the weight of the rate of change, =1, n is the total number of oil circuit temperature change rates, is the rate of change of the i-th oil circuit temperature.

8. The spray-free injection molding system for switch sockets according to claim 7, characterized in that: When it is determined that the oil circuit temperature is to be increased, it includes: ； in, is the heating rate, in °C / s; is the target temperature in °C; is the current oil circuit temperature, in °C; is the heating efficiency coefficient, unit: ℃ / s*K; It is the temperature adjustment correction factor, which is used to reflect the hysteresis of the system response; is the temperature attenuation coefficient, in units of 1 / s, which controls the attenuation of the heating rate over time; is the time in seconds.

9. The spray-free injection molding system for switch sockets according to claim 7, characterized in that: When determining to reduce the oil circuit temperature, it includes: ； in, is the cooling rate, unit is ℃ / s; is the cooling efficiency coefficient, in ℃ / s*K, which reflects the capacity of the cooling system; is the cooling correction factor, which is used to reflect the response hysteresis of the cooling system; is the cooling attenuation coefficient, in units of 1 / s, which controls the degree to which the cooling rate decays over time.

10. A spray-free injection molding method for a switch socket, applied to the spray-free injection molding system for a switch socket according to any one of claims 1 to 9, characterized in that: include: S1: collecting the oil circuit temperature and the ambient temperature during injection molding; adjusting the collection cycle according to the oil circuit temperature and the ambient temperature; S2: acquiring the oil circuit temperature within the adjusted acquisition period, establishing a temperature matrix for the oil circuit temperature according to a time series, and analyzing the temperature matrix to determine whether there is an abnormal value in the oil circuit temperature; If there are abnormal values, extract the operating data of the injection molding equipment and store it; S3: adjusting the preset target temperature threshold according to the oil circuit temperature and the ambient temperature; Calculating the change rate of the adjacent oil circuit temperatures in the temperature matrix and performing a secondary adjustment on the target temperature threshold according to the change rate to obtain an adjusted target temperature threshold and record it as a modified threshold; S4: Compare the oil circuit temperature with a correction threshold value. When the oil circuit temperature is less than or equal to the minimum value of the correction threshold value, determine to increase the oil circuit temperature. When the oil circuit temperature is greater than the maximum value of the correction threshold value, determine to reduce the oil circuit temperature.

Images