Multi-mold temperature integrated control device and control method

Abstract

The invention provides a multi-mold temperature integrated control device and a control method, and belongs to the technical field of mold temperature control, the device comprises a control system, a box body, a first heating assembly, a second heating assembly, a medium loop and a medium supplementing pipeline, the box body is internally provided with a first cavity, a second cavity and a third cavity, the first cavity, the second cavity and the third cavity are sequentially arranged from bottom to top, the medium loop comprises a medium outlet pipeline, a first pump body, a distribution box, a second pump body and a medium return pipeline, the first heating assembly is used for heating a medium in the first cavity, and the second heating assembly is used for heating a medium in the second cavity; a first temperature detector is arranged in the first cavity, and a sixth temperature detector is arranged in each mold; the multiple molds share the same heat source, and the requirement for configuring an independent heating device for each mold is reduced, so that the equipment purchase cost and the energy consumption are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of mold temperature control, and in particular to a multi-mold temperature integrated control device and a control method. Background Art

[0002] The mold temperature control system is crucial in the injection molding process. Its main function is to adjust and maintain the optimal temperature of the mold to ensure product quality and production efficiency. The system controls the mold temperature through heating and cooling cycles, optimizes the fluidity and cooling rate of the plastic melt, and ensures the temperature uniformity in the mold to avoid warping, dimensional deviation or surface defects in the product. The mold temperature control system consists of a heating unit, a cooling system, a controller and a sensor. Its advantages are to improve product quality, shorten the molding cycle, reduce the defect rate and achieve energy saving and environmental protection. However, the heating unit in the prior art generally directly heats the mold at a fixed point through a heating rod, but it is not suitable for complex molds. At the same time, it is prone to local overheating problems. There are also safety hazards in the long-term operation of the mold, and generally only the temperature of a single mold can be controlled. If it is mass-produced, multiple molds are running at the same time, and each mold needs to be equipped with a heating device, which greatly increases the cost of production. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art and to provide a multi-mold temperature integrated control device and control method.

[0004] The technical solution adopted by the present invention is as follows: In the first aspect, the present application provides a multi-mold temperature integrated control device, including a control system, a box, a first heating component, a second heating component, a medium circuit and a medium replenishing pipeline, wherein a first chamber, a second chamber and a third chamber are arranged in the box, the first chamber, the second chamber and the third chamber are arranged in sequence from bottom to top, a first conveying pipeline is arranged between the lower part of the third chamber and the upper part of the second chamber, a second conveying pipeline is arranged between the lower part of the second chamber and the upper part of the first chamber, and a first control valve is arranged on both the first conveying pipeline and the second conveying pipeline; The medium circuit includes an outlet medium pipeline, a first pump body, a distribution box, a second pump body and a return medium pipeline. A fourth chamber and a fifth chamber are arranged in the distribution box. The fourth chamber is provided with a plurality of output pipes, which are connected to the mold. The fifth chamber is provided with a plurality of return pipes, which are connected to the mold. One end of the outlet medium pipeline is connected to the lower part of the first chamber, and the other end is connected to the fourth chamber. One end of the return medium pipeline is connected to the fifth chamber, and the other end is connected to the third chamber. The first pump body is arranged on the outlet medium pipeline, and the second pump body is arranged on the return medium pipeline. One end of the medium replenishing pipeline is connected to the third chamber, and the other end is used for external connection; The first heating assembly is used to heat the medium in the first chamber, and the second heating assembly is used to heat the medium in the second chamber; The first chamber is provided with a first temperature detector for detecting the temperature of the medium therein, and each mold is provided with a sixth temperature detector.

[0005] In some embodiments, a third delivery pipeline is provided between the first delivery pipeline and the second delivery pipeline, and a third control valve is provided on the third delivery pipeline. When the third control valve is opened, the third chamber is communicated with the first chamber.

[0006] In some embodiments, three connecting pipes are provided on the medium replenishing pipeline and are respectively connected to the upper parts of the first chamber, the second chamber and the third chamber. A second control valve is provided on each of the three connecting pipes, and one end of the medium replenishing pipeline is used for external connection.

[0007] In some embodiments, a third heating assembly is further included, wherein the third heating assembly is used to heat the medium in the third chamber.

[0008] In some embodiments, the second temperature detector, the third temperature detector, the fourth temperature detector and the fifth temperature detector are arranged corresponding to the second chamber, the third chamber, the fourth chamber and the fifth chamber, and a seventh temperature detector is arranged on one end of the return medium pipe close to the third chamber.

[0009] In some embodiments, the volume of the third chamber is not less than the volume of the first chamber, the return medium pipeline is also connected to the first chamber, and a fourth control valve is provided on the pipeline connected to the third chamber, and a fifth control valve is provided on the pipeline connected to the first chamber; A discharge pipeline is arranged on the medium outlet pipeline downstream of the first pump body and on the medium return pipeline downstream of the second pump body. A sixth control valve and a seventh control valve are arranged on the two discharge pipelines respectively.

[0010] In a second aspect, the present application provides a control method applied to the multi-mold temperature integrated control device, comprising the following steps: Step S1: Under standard pressure, set the required temperature of the mold to T, select the medium according to T, T≤ 95℃, the medium is water, Each mold is connected to the medium circuit; Step S2: Open each first control valve, replenish medium to each chamber to a preset liquid level through the medium replenishing pipeline, and close each first control valve after replenishment; Step S3: Start the first heating component to heat the medium in the first chamber to ; Step S4: Start the first pump body and the second pump body to form a medium circulation through the medium loop, and then use the first temperature detector and the sixth temperature detector to detect the temperature of the corresponding position, which are respectively , and the ambient temperature is detected in real time through the temperature sensor ,in, Wait until the cycle is stable and reaches thermal equilibrium before measuring, and the temperature change rate is lower than the threshold; At the same time, the temperature sensor measures the reference ambient temperature ; Step S5: Calculate temperature loss , about temperature loss , introduce a compensation coefficient Used to adjust the influence of ambient temperature and calculate the temperature loss after compensation: , and obtain Average value of die temperature loss: ; Among them, the compensation coefficient The initial value of is obtained by extracting simulation results or analyzing historical data. Compare with the actual temperature loss and record the error If the error continues to increase or decrease within a certain range, adjust the compensation coefficient , using the linear adjustment method: , is the adjustment factor, is the average error; Step S6: close the first pump body and the second pump body, start the second heating component, and heat the temperature of the medium in the second chamber to At the same time, the temperature of the medium in the first chamber is heated to After the heating is completed, the first pump body and the second pump body are started to form a medium circulation through the medium circuit, and then the temperature of the corresponding position is detected by the first temperature detector and the sixth temperature detector, which are respectively , conduct real-time monitoring; Step S7: Determination Is it established, among which, Set according to mold processing requirements; if established, the first heating component and the second heating component maintain the temperature of the medium in the first chamber and the second chamber; if not established, the error is calculated , through the second heating component, the temperature of the medium in the second chamber is heated to At the same time, the temperature of the medium in the first chamber is heated to .

[0011] In some embodiments, step S7 includes the following steps: Step S71: If it is determined Not within the range, calculation error , and introduce PID control algorithm to optimize the control signal , used to adjust the output power of the heating component in real time, the algorithm is as follows: in, is the gain parameter; Step S72: Dynamically adjust PID gain parameters through machine learning model , used to reduce the impact of ambient temperature.

[0012] In some embodiments, in step S72, the following steps are included: Step S721: Collect system operation data, including , set a fixed time interval to update the dataset; Step S722: Data preprocessing, first cleaning the data, processing missing values ​​and outliers, and then standardizing or normalizing the data to facilitate model processing; Step S723: Model training and validation, select a model, train the model using historical data sets, and then use cross-validation to evaluate model performance; Step S724: Adjust parameters in real time and establish feature vectors: , Then predict the PID parameters: ; Step S725: Update PID gain parameters in real time. .

[0013] In some embodiments, when it is necessary to reduce the temperature of the medium in the first chamber, the following steps are included: Step A1: Adjust the first heating component to the required power in advance, open the first control valve on the first delivery pipeline and close the first control valve on the second delivery pipeline, so that the medium in the first chamber is delivered to the third chamber. When the medium in the first chamber reaches a predetermined liquid level, close the first pump body first, and then close the second pump body after a certain period of time; Step A2: opening the second control valve close to the first chamber, and simultaneously replenishing a predetermined amount of medium at a predetermined temperature into the first chamber through the medium replenishment pipeline, so that the temperature of the medium in the first chamber is reduced to a required temperature, and closing the second control valve after replenishment is completed; Step A3: Start the first pump body and the second pump body, open the fifth control valve and close the fourth control valve at the same time, so that the medium circulates between the first chamber, the medium circuit and the mold; Step A4: close the fourth control valve and the fifth control valve, open the seventh control valve, and discharge the medium from the circulation; Step A5: Open the fourth control valve, close the fifth control valve and the seventh control valve, and simultaneously open the two first control valves to allow the medium to be delivered to the first chamber.

[0014] The beneficial effects of the present invention are as follows: 1. In the present invention, multiple molds share the same heat source, which reduces the need to configure an independent heating device for each mold, thereby reducing equipment procurement costs and energy consumption.

[0015] 2. The present invention adopts a multi-layer chamber design, and the first chamber and the second chamber are respectively equipped with heating components, which allows the medium to be heated and the temperature to be adjusted in stages, which helps to improve the temperature stability and uniformity of the medium and reduce the risk of local overheating.

[0016] 3. In the present invention, a closed medium circulation system is formed by the distribution box and the medium loop, which reduces the dependence on the environment and the risk of external pollution. In addition, safety is also improved because the liquid medium has a large heat capacity and is not easy to reach an overheated state during the heat transfer process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the present invention.

[0018] Figure 1 It is a schematic diagram of a multi-mold temperature integrated control device in the present invention; Figure 2 It is a partial schematic diagram of a multi-mold temperature integrated control device in the present invention; Figure 3 The flow chart of a control method of a multi-mold temperature integrated control device in the present invention is as follows Figure 1 ; Figure 4 The flow chart of a control method of a multi-mold temperature integrated control device in the present invention is as follows Figure 2 ; Figure 5 The flow chart of a control method of a multi-mold temperature integrated control device in the present invention is as follows Figure 3 ; Figure 6 The flow chart of a control method of a multi-mold temperature integrated control device in the present invention is as follows Figure 4 . DETAILED DESCRIPTION

[0019] The following description provides specific application scenarios and requirements of this specification, with the purpose of enabling those skilled in the art to make and use the contents of this specification. Various local modifications to the disclosed embodiments will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of this specification. Therefore, this specification is not limited to the embodiments shown, but to the widest scope consistent with the claims.

[0020] In the description of the present application, it should be noted that, unless otherwise expressly specified and limited, the terms "longitudinal", "transverse", "radial", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0021] Secondly, the terms "first", "second" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different components and should not be understood as limitations on the embodiments of the present application.

[0022] In addition, the terms "installed", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components.

[0023] For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] The flowcharts used in this application illustrate the operations implemented by the system according to some embodiments in this specification. It should be clearly understood that the operations of the flowcharts may not be implemented in sequence. On the contrary, the operations may be implemented in reverse order or simultaneously. In addition, one or more other operations may be added to the flowchart. One or more operations may be removed from the flowchart.

[0025] Regarding the drawings of the present application, it should be clearly understood that the drawings are for illustration and description purposes only and are not intended to limit the scope of the present specification. It should also be understood that the drawings are not drawn to scale.

[0026] In the prior art, the heating unit usually relies on a heating rod to heat the mold at a fixed point. This method has limitations when dealing with complex mold structures and is prone to local overheating, which in turn causes safety hazards. In addition, this method can usually only control the temperature of a single mold. In a mass production environment, a heating device needs to be configured separately for each mold, which significantly increases production costs.

[0027] Based on this problem, Figure 1 and Figure 2 As shown, the present specification provides a multi-mold temperature integrated control device, including a control system, a box 1, a first heating component 2, a second heating component 3, a third heating component 4, a medium circuit and a medium replenishing pipeline 60, wherein the box 1 is provided with a first chamber 100, a second chamber 101 and a third chamber 102, wherein the first chamber 100, the second chamber 101 and the third chamber 102 are arranged in sequence from bottom to top, a first conveying pipeline 103 is arranged between the lower part of the third chamber 102 and the upper part of the second chamber 101, and a The second delivery pipeline 104, the first delivery pipeline 103 and the second delivery pipeline 104 are both provided with a first control valve 105; wherein, the first delivery pipeline 103 and the second delivery pipeline 104 can both adopt a three-way pipe, and the two first control valves 105 are respectively arranged at one end of the three-way pipe close to the second chamber 101. In this way, when the first control valve 105 on the first delivery pipeline 103 is opened, the medium in the third chamber 102 can be delivered to the second chamber 101, and when the first control valve 105 on the second delivery pipeline 104 is opened, the medium in the second chamber 101 can be delivered to the first chamber 100.

[0028] In some embodiments, the medium circuit includes an outlet medium pipeline 50, a first pump body 51, a distribution box 52, a second pump body 53 and a return medium pipeline 54. A fourth chamber 520 and a fifth chamber 521 are provided in the distribution box 52. The fourth chamber 520 is provided with a plurality of output pipes, which are connected to the mold. The fifth chamber 521 is provided with a plurality of return pipes, which are connected to the mold, that is, the return pipes are connected to the heating flow channel of the mold through the output pipes and the return pipes. One end of the outlet medium pipeline 50 is connected to the lower part of the first chamber 100, and the other end is connected to the first chamber 100. There are four chambers 520, one end of the return medium pipeline 54 is connected to the fifth chamber 521, and the other end is connected to the third chamber 102. The first pump body 51 is arranged on the outlet medium pipeline 50, and the second pump body 53 is arranged on the return medium pipeline 54. With such arrangement, after starting the first pump body 51 and the second pump body 53, the medium is circulated through the medium loop in the order of the first chamber 100, the outlet medium pipeline 50, the fourth chamber 520, the output pipe, the mold, the return pipe, the fifth chamber 521, the return medium pipeline 54, and the third chamber 102, thereby realizing heating for the mold.

[0029] The number of the output pipes is equal to the number of the return pipes, and the distribution box 52 can adopt a one-inlet and multiple-outlet pipe.

[0030] Secondly, one end of the medium replenishing pipeline 60 is connected to the third chamber 102, and the other end is used for external connection. With this arrangement, only the two first control valves 105 need to be opened, and the medium can be replenished for the first chamber 100, the second chamber 101 and the third chamber 102 through the medium replenishing pipeline 60.

[0031] In this specification, three connecting pipes 61 are provided on the medium replenishing pipeline 60 and are respectively connected to the upper part of the first chamber 100, the second chamber 101 and the third chamber 102. The three connecting pipes 61 are each provided with a second control valve 62. One end of the medium replenishing pipeline 60 is used for external connection. With such a configuration, the medium can be replenished for each chamber separately, which greatly improves the efficiency of replenishing the medium. In addition, when the medium temperature needs to be lowered, a certain amount of low-temperature or normal-temperature medium can be mixed into any chamber separately to quickly lower the temperature.

[0032] In some embodiments, the first heating component 2 is used to heat the medium in the first chamber 100, the second heating component 3 is used to heat the medium in the second chamber 101, and the third heating component 4 is used to heat the medium in the third chamber 102. The specific structure of the heating component refers to the heating structure with excellent heating effect in the heating water tank in the prior art, and generally a heating plate is selected to be set at the bottom of the chamber. Among them, when the temperature of the medium in the third chamber 102 is lower than a certain value, the third heating component 4 is started, which is generally lower than half of the temperature of the medium in the first chamber 100 or the second chamber 101. In some embodiments, the first temperature detector, the second temperature detector, the third temperature detector, the fourth temperature detector and the fifth temperature detector are provided corresponding to the first chamber 100, the second chamber 101, the third chamber 102, the fourth chamber 520 and the fifth chamber 521, respectively detecting the temperature of the medium in the corresponding chamber, and each mold is provided with a sixth temperature detector for detecting the temperature of the medium in the mold, and the return medium pipeline 54 is provided with a seventh temperature detector at one end close to the third chamber 102, and each temperature detector is connected to the control system, and preferably a high-precision temperature detection device. Secondly, a temperature sensor for detecting the ambient temperature is also provided, which is also connected to the control system.

[0033] In some embodiments, the volume of the third chamber 102 is not less than the volume of the first chamber 100 .

[0034] In some embodiments, the return medium pipeline 54 is also connected to the first chamber 100, and a fourth control valve is provided on the pipeline connected to the third chamber 102, and a fifth control valve is provided on the pipeline connected to the first chamber 100. Of course, a three-way valve can also be used to achieve this.

[0035] Secondly, a discharge pipeline is provided on the outlet medium pipeline 50 downstream of the first pump body 51 and on the return medium pipeline 54 downstream of the second pump body 53. The six control valves and the seventh control valves are respectively provided on the two discharge pipelines. The medium in the water tank, the medium loop and the mold can be effectively discharged through the discharge pipelines. Among them, the discharge pipeline on the return medium pipeline 54 must be provided, and the discharge pipeline on the outlet medium pipeline 50 can increase the discharge efficiency.

[0036] Optionally, a third delivery pipeline 106 is arranged between the first delivery pipeline 103 and the second delivery pipeline 104, and a third control valve 107 is arranged on the third delivery pipeline 106. When the third control valve 107 is opened, the third chamber 102 is connected to the first chamber 100. When it is necessary to lower the temperature of the medium in the first chamber 100, the third control valve 107 can be opened and the two first control valves 105 can be closed to mix the medium with relatively low temperature in the third chamber 102 into the high-temperature medium in the first chamber 100, thereby improving the cooling efficiency.

[0037] It can be understood that each control valve is preferably a remote-controlled valve, such as a solenoid valve, an electric valve, a pneumatic valve, etc.

[0038] In summary, the multi-mold temperature integrated control device integrates the heating requirements of multiple molds into one device through an integrated design, achieving efficient and uniform temperature control, thereby solving the problems of local overheating, low efficiency, poor safety and high cost of traditional heating units. Through multi-chamber graded heating and independent temperature control system, the accuracy and flexibility of temperature regulation are improved, ensuring the temperature stability and uniformity of the mold under complex structure. Secondly, the closed circulation system and automatic medium replenishment function improve the safety and convenience of operation, reduce energy consumption and maintenance costs. In addition, its modular and scalable design enables the system to adapt to production needs of different scales, respond quickly to temperature changes, and significantly improve production efficiency and product quality.

[0039] In some embodiments, Figures 3 to 6 As shown, this specification provides a control method for the multi-mold temperature integrated control device according to the first embodiment, comprising the following steps: Step S1: Under standard pressure, set the required temperature of the mold to T, select the medium according to T, T≤ 95℃, the medium is water, Each mold is connected to the medium circuit; Step S2: Open each first control valve 105, and replenish the medium to the first chamber 100, the second chamber 101 and the third chamber 102 to the preset liquid level through the medium replenishing pipeline 60, and close each first control valve 105 after replenishment; in addition, each second control valve 62 can also be opened, and the medium can be replenished to the first chamber 100, the second chamber 101 and the third chamber 102 to the preset liquid level through the medium replenishing pipeline 60. Generally, only the first chamber 100 and the second chamber 101 need to be filled with the medium. At this time, the fourth control valve is opened, and the fifth control valve, the sixth control valve and the seventh control valve are closed; Step S3: Start the first heating assembly 2 to heat the medium in the first chamber 100 to a temperature of ; Step S4: Start the first pump body 51 and the second pump body 53 to form a medium circulation through the medium loop, and then use the first temperature detector and the sixth temperature detector to detect the temperature of the corresponding position, which are respectively , and the ambient temperature is detected in real time through the temperature sensor ,in, It is necessary to wait for the cycle to stabilize and reach thermal equilibrium before measuring. The temperature change rate is lower than the threshold. The general threshold selection range is Every minute to per minute; measured At the same time, the temperature sensor measures the reference ambient temperature ; In addition, other temperature detectors can measure the corresponding temperature as ; Step S5: Calculate temperature loss , about temperature loss , it is necessary to consider the impact of ambient temperature changes and introduce a compensation coefficient Used to adjust the influence of ambient temperature and calculate the temperature loss after compensation: , and obtain Average value of die temperature loss: ; Among them, the compensation coefficient The initial value of is obtained by extracting simulation results or analyzing historical data. Compare with the actual temperature loss and record the error If the error continues to increase or decrease within a certain range, adjust the compensation coefficient , using the linear adjustment method: , To adjust the coefficient, you can optimize it through experiments or historical data. is the average error: ; Step S6: close the first pump body 51 and the second pump body 53, start the second heating component 3, and heat the temperature of the medium in the second chamber 101 to At the same time, the temperature of the medium in the first chamber 100 is heated to After the heating is completed, the first pump body 51 and the second pump body 53 are started to form a medium circulation through the medium circuit, and then the temperature of the corresponding position is detected by the first temperature detector and the sixth temperature detector, which are respectively , for real-time monitoring; in addition, other temperature detectors can measure the corresponding temperature as ; Step S7: Determination Is it established, among which, Set according to mold processing requirements, The general range is 1°C to 5°C. If it is established, the first heating element 2 and the second heating element 3 maintain the temperature of the medium in the first chamber 100 and the second chamber 101. If it is not established, the error is calculated. , through the second heating component 3, the temperature of the medium in the second chamber 101 is heated to At the same time, the temperature of the medium in the first chamber 100 is heated to .

[0040] Based on the above method, in order to further improve the accuracy and efficiency of temperature control, step S7 further includes: Step S71: If it is determined Not within the range, calculation error , and introduce PID control algorithm to optimize the control signal , used to adjust the output power of the heating component in real time, the algorithm is as follows: in, is the proportional gain, controlling the current error Response speed; is the integral gain, which controls the effect on error accumulation and is used to eliminate steady-state errors; is the differential gain, which controls the response to the error change rate and is used to predict future error changes and increase system stability; is the integral of the error, which is used to accumulate the error to reduce the long-term steady-state error; It is the differential of the error, which is used to predict the error change trend and improve the response speed; Step S72: Dynamically adjust PID gain parameters through machine learning model , to reduce the impact of ambient temperature; Specifically, the steps are as follows: Step S721: Collect system operation data, including , set a fixed time interval to update the dataset; Step S722: Data preprocessing, first cleaning the data, processing missing values ​​and outliers, and then standardizing or normalizing the data to facilitate model processing; Step S723: Model training and validation, select a model such as random forest, neural network, etc., use historical data sets to train the model, and then use cross-validation to evaluate the model performance; Step S724: Adjust parameters in real time and establish feature vectors: , Then predict the PID parameters: ; Step S725: Update PID gain parameters in real time. .

[0041] In some embodiments, when it is necessary to reduce the temperature of the medium in the first chamber 100, the following steps are included: Step A1: Adjust the first heating component 2 to the required power in advance, the second heating component 3 can be closed or the power can be reduced, and at the same time, the first control valve 105 on the first delivery pipeline 103 is opened and the first control valve 105 on the second delivery pipeline 104 is closed, so that the medium in the first chamber 100 is delivered to the third chamber 102. When the medium in the first chamber 100 reaches a predetermined liquid level, the first pump body 51 is closed first, and then the second pump body 53 is closed after a certain period of time, so that the medium in the mold can be discharged as much as possible. After the medium at the predetermined liquid level is supplemented with a predetermined amount and a predetermined temperature in the first chamber 100, the overall temperature will be reduced to the required temperature; Step A2: Open the second control valve 62 near the first chamber 100, and at the same time replenish a predetermined amount of medium at a predetermined temperature into the first chamber 100 through the medium replenishment pipeline 60, so that the temperature of the medium in the first chamber 100 is reduced to the required temperature, and close the second control valve 62 after replenishment is completed; Step A3: Start the first pump body 51 and the second pump body 53, and at the same time open the fifth control valve and close the fourth control valve, so that the medium circulates between the first chamber 100, the medium circuit and the mold; Step A4: close the fourth control valve and the fifth control valve, open the seventh control valve, and discharge the medium from the circulation; Step A5: Open the fourth control valve, close the fifth control valve and the seventh control valve, and open the two first control valves 105 at the same time, so that the medium is transported to the first chamber 100. Since the medium in the second chamber 101 and the third chamber 102 has a high temperature, the energy consumption required for reheating can be reduced.

[0042] It should be understood that if in step A1, the medium in the first chamber 100 is completely transported to the third chamber 102, and then the medium circuit is connected to the cooling channel of the mold, and then in step A2, the medium of the required temperature is replenished to the first chamber 100 through the medium replenishment pipeline 60, it can be used for cooling cycle, so that one machine can be used for multiple purposes and has a wider range of applications.

[0043] In some embodiments, when the medium in the first chamber 100 is less than one-half, the first control valve 105 between the first chamber 100 and the second chamber 101 is opened to replenish the medium in the second chamber 101 into the first chamber 100; when the medium in the second chamber 101 is less than one-half, the first control valve 105 between the second chamber 101 and the third chamber 102 is opened to replenish the medium in the third chamber 102 into the second chamber 101, so as to effectively maintain the circulation of the medium.

[0044] In summary, after reading this detailed disclosure, those skilled in the art will appreciate that the foregoing detailed disclosure may be presented only by way of example and may not be restrictive. Although not explicitly stated herein, those skilled in the art will appreciate that the requirements of this application encompass various reasonable changes, improvements and modifications to the embodiments. These changes, improvements and modifications are intended to be proposed by the present application and are within the spirit and scope of the exemplary embodiments of the present application.

[0045] In addition, it should be understood that in the foregoing description of the embodiments of the present application, in order to help understand a feature and for the purpose of simplifying the present application, the present application combines various features in a single embodiment, drawing or its description. However, this does not mean that the combination of these features is necessary. When reading the present application, it is entirely possible for a person skilled in the art to mark out a part of the devices as a separate embodiment. In other words, the embodiments in the present application can also be understood as the integration of multiple secondary embodiments. This is also true when the content of each secondary embodiment is less than all the features of a single aforementioned disclosed embodiment.

[0046] Finally, it should be understood that the embodiments of the application disclosed herein are explanations of the principles of the embodiments of the present application. Other modified embodiments are also within the scope of the present application. Therefore, the embodiments disclosed in the present application are merely examples and not limitations. Those skilled in the art can adopt alternative configurations according to the embodiments in the present application to implement the application in the present application. Therefore, the embodiments of the present application are not limited to the embodiments accurately described in the application.

Claims

1. Multi-mold temperature integrated control device, characterized in that: It includes a control system, a box, a first heating component, a second heating component, a medium circuit and a medium replenishing pipeline. The box is provided with a first chamber, a second chamber and a third chamber. The first chamber, the second chamber and the third chamber are arranged in sequence from bottom to top. A first delivery pipeline is arranged between the lower part of the third chamber and the upper part of the second chamber. A second delivery pipeline is arranged between the lower part of the second chamber and the upper part of the first chamber. Both the first delivery pipeline and the second delivery pipeline are provided with a first control valve. The medium circuit includes an outlet medium pipeline, a first pump body, a distribution box, a second pump body and a return medium pipeline. A fourth chamber and a fifth chamber are arranged in the distribution box. The fourth chamber is provided with a plurality of output pipes, which are connected to the mold. The fifth chamber is provided with a plurality of return pipes, which are connected to the mold. One end of the outlet medium pipeline is connected to the lower part of the first chamber, and the other end is connected to the fourth chamber. One end of the return medium pipeline is connected to the fifth chamber, and the other end is connected to the third chamber. The first pump body is arranged on the outlet medium pipeline, and the second pump body is arranged on the return medium pipeline. One end of the medium replenishing pipeline is connected to the third chamber, and the other end is used for external connection; The first heating component is used to heat the medium in the first chamber, and the second heating component is used to heat the medium in the second chamber; The first chamber is provided with a first temperature detector for detecting the temperature of the medium therein, and each mold is provided with a sixth temperature detector.

2. The multi-mold temperature integrated control device according to claim 1, characterized in that: A third delivery pipeline is provided between the first delivery pipeline and the second delivery pipeline, and a third control valve is provided on the third delivery pipeline. When the third control valve is opened, the third chamber is communicated with the first chamber.

3. The multi-mold temperature integrated control device according to claim 1, characterized in that: The medium replenishment pipeline is provided with three connecting pipes and is respectively connected to the upper part of the first chamber, the second chamber and the third chamber. The three connecting pipes are all provided with a second control valve. One end of the medium replenishment pipeline is used for external connection.

4. The multi-mold temperature integrated control device according to claim 1, characterized in that: Also included is a third heating assembly, which is used to heat the medium in the third chamber.

5. The multi-mold temperature integrated control device according to claim 4, characterized in that: It also includes a second temperature detector, a third temperature detector, a fourth temperature detector and a fifth temperature detector arranged corresponding to the second chamber, the third chamber, the fourth chamber and the fifth chamber, and a seventh temperature detector is arranged on one end of the return medium pipeline close to the third chamber.

6. The multi-mold temperature integrated control device according to claim 3, characterized in that: The volume of the third chamber is not less than the volume of the first chamber, the return medium pipeline is also connected to the first chamber, and a fourth control valve is provided on the pipeline connected to the third chamber, and a fifth control valve is provided on the pipeline connected to the first chamber; A discharge pipeline is arranged on the medium outlet pipeline downstream of the first pump body and on the medium return pipeline downstream of the second pump body. A sixth control valve and a seventh control valve are arranged on the two discharge pipelines respectively.

7. A control method applied to a multi-mold temperature integrated control device as claimed in any one of claims 1 to 6, characterized in that: The steps include: Step S1: Under standard pressure, set the required temperature of the mold to T, select the medium according to T, T≤ 95℃, the medium is water, Each mold is connected to the medium circuit; Step S2: Open each first control valve, replenish medium to each chamber to a preset liquid level through the medium replenishing pipeline, and close each first control valve after replenishment; Step S3: Start the first heating component to heat the medium in the first chamber to ; Step S4: Start the first pump body and the second pump body to form a medium circulation through the medium loop, and then use the first temperature detector and the sixth temperature detector to detect the temperature of the corresponding position, which are respectively , and the ambient temperature is detected in real time through the temperature sensor ,in, Wait until the cycle is stable and reaches thermal equilibrium before measuring, and the temperature change rate is lower than the threshold; At the same time, the temperature sensor measures the reference ambient temperature ; Step S5: Calculate temperature loss , about temperature loss , introduce a compensation coefficient Used to adjust the influence of ambient temperature and calculate the temperature loss after compensation: , and obtain Average value of die temperature loss: ； Among them, the compensation coefficient The initial value of is obtained by extracting simulation results or analyzing historical data. Compare with the actual temperature loss and record the error If the error continues to increase or decrease within a certain range, adjust the compensation coefficient , using the linear adjustment method: , is the adjustment factor, is the average error; Step S6: close the first pump body and the second pump body, start the second heating component, and heat the temperature of the medium in the second chamber to At the same time, the temperature of the medium in the first chamber is heated to After the heating is completed, the first pump body and the second pump body are started to form a medium circulation through the medium circuit, and then the temperature of the corresponding position is detected by the first temperature detector and the sixth temperature detector, which are respectively , conduct real-time monitoring; Step S7: Determination Is it established, among which, Set according to mold processing requirements; if established, the first heating component and the second heating component maintain the temperature of the medium in the first chamber and the second chamber; if not established, the error is calculated , through the second heating component, the temperature of the medium in the second chamber is heated to At the same time, the temperature of the medium in the first chamber is heated to .

8. The control method according to claim 7, characterized in that: In step S7, the following steps are included: Step S71: If it is determined Not within the range, calculation error , and introduce PID control algorithm to optimize the control signal , used to adjust the output power of the heating component in real time, the algorithm is as follows: in, is the gain parameter; Step S72: Dynamically adjust PID gain parameters through machine learning model , used to reduce the impact of ambient temperature.

9. The control method according to claim 8, characterized in that: In step S72, the following steps are included: Step S721: Collect system operation data, including , set a fixed time interval to update the dataset; Step S722: Data preprocessing, first cleaning the data, processing missing values ​​and outliers, and then standardizing or normalizing the data to facilitate model processing; Step S723: Model training and validation, select a model, train the model using historical data sets, and then use cross-validation to evaluate model performance; Step S724: Adjust parameters in real time and establish feature vectors: ， Then predict the PID parameters: ; Step S725: Update PID gain parameters in real time. .

10. The control method applied to the multi-mold temperature integrated control device according to claim 6, characterized in that: When the temperature of the medium in the first chamber needs to be lowered, the following steps are included: Step A1: Adjust the first heating component to the required power in advance, open the first control valve on the first delivery pipeline and close the first control valve on the second delivery pipeline, so that the medium in the first chamber is delivered to the third chamber. When the medium in the first chamber reaches a predetermined liquid level, close the first pump body first, and then close the second pump body after a certain period of time; Step A2: opening the second control valve close to the first chamber, and simultaneously replenishing a predetermined amount of medium at a predetermined temperature into the first chamber through the medium replenishment pipeline, so that the temperature of the medium in the first chamber is reduced to a required temperature, and closing the second control valve after replenishment is completed; Step A3: Start the first pump body and the second pump body, open the fifth control valve and close the fourth control valve at the same time, so that the medium circulates between the first chamber, the medium circuit and the mold; Step A4: close the fourth control valve and the fifth control valve, open the seventh control valve, and discharge the medium from the circulation; Step A5: Open the fourth control valve, close the fifth control valve and the seventh control valve, and simultaneously open the two first control valves to allow the medium to be delivered to the first chamber.

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