Special module for cooling and molding of polyurethane elastomer and cooling method thereof

Abstract

The present invention discloses a special module for cooling and molding of polyurethane elastomers and a cooling method thereof, comprising the following steps: pre-treating the polyurethane elastomer, adopting a zone heating strategy to ensure the uniform temperature of the material, placing the preheated material into a mold, dynamically adjusting the temperature of each region through a mold temperature control system to ensure the fluidity and filling effect of the material, implementing a three-stage cooling strategy, gradually adjusting the flow rate and flow rate of the coolant in the initial, transition and equilibrium stages to balance the temperature inside and outside the mold, and for complex geometry and thin-walled structures, adopting an adaptive cooling control technology, dynamically adjusting the flow rate of the coolant according to the real-time monitored wall thickness and temperature data, optimizing the cooling efficiency through a coolant circulation reuse mechanism, and using an intelligent temperature control system to adjust the mold temperature and clean up the residue after cooling. The present invention provides an efficient, energy-saving and precise cooling molding method suitable for the production of polyurethane elastomers.

Description

Technical Field

[0001] The invention relates to the technical field of polyurethane elastomer molding and processing, in particular to a special module for cooling and molding polyurethane elastomer and a cooling method thereof. Background Art

[0002] Due to its excellent physical properties, such as high elasticity, high wear resistance and good aging resistance, polyurethane elastomers are widely used in many fields such as automobiles, electronics, and construction. Especially in the automotive industry, they are used in the production of seals, shock absorbers and other components. In the molding process of polyurethane elastomers, temperature control and fluidity management in the cooling stage are key links to ensure the quality of the final molded product. Traditional cooling technology faces many challenges, especially in terms of coolant flow control, uniformity of temperature distribution in the mold, and material molding stability. There are many defects.

[0003] In the prior art, the cooling method of polyurethane elastomer mainly relies on fixed cooling strategies or simple temperature control means. In many traditional cooling methods, the adjustment of coolant flow rate and flow is relatively rough, and often fails to be accurately adjusted according to the actual needs of different areas in the mold, resulting in uneven cooling effect. Since there is a significant temperature difference in the molding process of polyurethane elastomer, the coolant flow rate in the mold cannot adapt to the heat conduction requirements of different areas, which in turn affects the fluidity, filling effect and final molding quality of the material. The temperature difference problem in the cooling process can easily cause uneven distribution of stress inside the mold, resulting in cracks, deformation or surface defects in the molding material.

[0004] In traditional cooling methods, the cooling process is more difficult due to the complex geometry and thin-wall structure in the mold. Different areas of the mold require different cooling intensities during the cooling process, which may cause some areas to be overcooled or overheated, further affecting the molding effect. The flow regulation of traditional coolant is usually based on experience or preset parameters, without real-time dynamic adjustment based on factors such as the wall thickness and temperature gradient in the mold, which can easily cause local overheating or overcooling, thus affecting the quality and consistency of the final product.

[0005] The recycling efficiency of coolant is also an issue that needs to be addressed urgently. Most of the coolants in the existing technology are disposable, have high energy consumption and cause great environmental pollution. The effective recycling of coolant can not only reduce energy consumption, but also improve the efficiency of the cooling process. The existing technology generally lacks an efficient coolant recycling and reuse mechanism, and cannot achieve energy conservation while ensuring the cooling effect.

[0006] Although existing intelligent temperature control technology has been applied in some fields, there is still a lack of an intelligent system that can achieve precise temperature control during the cooling and molding process of polyurethane elastomers. In particular, in terms of coolant flow and temperature regulation, the existing technology lacks an accurate dynamic adjustment mechanism and cannot achieve uniform cooling and temperature control in different areas of the mold. In particular, in adjusting the output power of the temperature control unit, the existing technology usually relies on simple preset rules and lacks the ability of real-time feedback and adaptive adjustment.

[0007] Therefore, how to provide a special module for cooling and molding polyurethane elastomers and a cooling method thereof is a problem that those skilled in the art need to solve urgently. Summary of the invention

[0008] One purpose of the present invention is to propose a special module for cooling and molding of polyurethane elastomers and a cooling method thereof. The present invention makes full use of the intelligent temperature control system, staged cooling strategy, dynamic coolant flow adjustment, wall thickness adaptive cooling control technology and coolant circulation reuse mechanism, and describes in detail how to accurately control the temperature distribution and cooling intensity during the cooling process through these technical means to ensure the temperature uniformity of the molding process. The method monitors the temperature, density, viscosity and other data of the mold and material in real time, dynamically adjusts the coolant flow, flow rate and output power of the temperature control unit, and effectively solves the problems of uneven cooling, uneven stress and material deformation. It has the advantages of high cooling efficiency, low energy use, stable and accurate molding quality.

[0009] The polyurethane elastomer cooling molding special module and cooling method thereof according to an embodiment of the present invention include the following steps:

[0010] S1. Pre-treat the polyurethane elastomer to achieve uniform heating of the material. Through the zoned dynamic heating strategy, the heating intensity of different areas is adjusted according to the real-time monitored material temperature, density and viscosity data to achieve consistency of the temperature inside and outside the material and eliminate molding problems caused by temperature differences.

[0011] S2. Place the preheated polyurethane elastomer into the mold, and dynamically adjust the temperature of each area in the mold based on the real-time feedback data from the sensor through the temperature control system in the mold to control the flow state and filling effect of the material in the mold cavity, thereby avoiding fluidity changes and surface quality problems caused by local temperature differences;

[0012] S3. Combined with the heat capacity characteristics and cooling requirements of the mold, a phased cooling strategy is implemented and local cooling adjustment technology is integrated. The cooling process includes three stages. In the initial cooling stage, a low flow coolant flow rate is used to gradually transfer heat to the mold surface. In the transition cooling stage, the heat distribution inside and on the surface of the mold is balanced by adjusting the coolant flow rate and flow. In the balanced cooling stage, based on real-time control of the coolant flow rate and flow rate, the uniform distribution of temperature inside and outside the mold is achieved, and the material stress and deformation caused by temperature difference changes are alleviated;

[0013] S4. For complex geometric areas and thin-walled structures of the mold, the wall thickness adaptive cooling control technology is used. Based on the real-time monitoring of wall thickness and temperature data, the flow rate of the coolant is dynamically adjusted to match the cooling intensity of different areas with the structural requirements, avoiding quality problems caused by local cooling differences;

[0014] S5. Use the coolant recycling mechanism to dynamically adjust the coolant circulation path and usage through thermal energy data monitoring and flow path optimization, optimize cooling efficiency and external resource requirements, and control energy usage during the cooling process;

[0015] S6. After cooling is completed, based on the intelligent temperature management system and automatic cleaning function, the temperature state of the mold is adjusted using the temperature history data and cooling curve in the mold, and the coolant residue and molding material in the mold are cleaned.

[0016] Optionally, the S1 specifically includes:

[0017] S11, placing the polyurethane elastomer material in a partitioned dynamic heating device, the heating device being composed of a plurality of independent heating units, each heating unit being capable of independently adjusting the heating intensity based on an input parameter;

[0018] S12, monitoring the temperature, density and viscosity data of the polyurethane elastomer in each partition in real time through a temperature sensor, a density sensor and a viscosity sensor, and generating a heating adjustment parameter after the data is processed by a control module;

[0019] S13, dynamically calculate the heating intensity of each partition based on the real-time monitored temperature, density and viscosity :

[0020] ;

[0021] in, is the heating intensity of the ith partition, represents the temperature gradient of the ith partition, and are the density and viscosity of the ith partition, respectively, and k is the adjustment coefficient related to materials and equipment;

[0022] S14: During the heating intensity adjustment process, all zones meet the following temperature uniformity conditions:

[0023] ;

[0024] in, and are the highest and lowest temperatures in the material, is a preset temperature gradient threshold;

[0025] S15. After heating is completed, the uniform temperature of the polyurethane elastomer is derived , and its temperature distribution range meets the following conditions:

[0026] .

[0027] Optionally, the S2 specifically includes:

[0028] S21, placing the preheated polyurethane elastomer into a mold consisting of multiple independent temperature control areas, each area of ​​the mold is equipped with a temperature control unit and a distributed sensor, which can collect temperature data in real time and transmit it to the temperature control management module;

[0029] S22, real-time monitoring of the temperature of each area in the mold through a distributed sensor network and transmitting the data to a control module;

[0030] S23, according to temperature deviation and material properties, dynamically calculate the output power of the temperature control unit in the jth area :

[0031] ;

[0032] Where k is the adjustment coefficient, is the temperature deviation, is the target temperature, is the specific heat capacity of polyurethane elastomer, is the material quality of the jth region, To control the time interval, is the power allocation factor;

[0033] S24. Optimize the output power of the temperature control unit based on the flow state and filling effect of the polyurethane elastomer in the mold cavity, so that the flow path of the material in the mold cavity is uniform, and prevent uneven filling or surface defects caused by local temperature differences;

[0034] S25. Continue to adjust the temperature control unit until the temperature of all areas in the mold meets the following uniformity conditions:

[0035] ;

[0036] in, and Respectively represent the highest and lowest temperatures in the jth region of the mold, is a preset temperature gradient threshold;

[0037] S26. After the temperature uniformity condition is met, verify the temperature distribution in the mold to ensure that the material fluidity and filling effect meet the predetermined goals.

[0038] Optionally, the S3 specifically includes:

[0039] S31. In the initial cooling stage, use low-flow coolant to gradually transfer heat through the cooling channels on the mold surface to avoid drastic temperature fluctuations. The flow rate of low-flow coolant According to the initial temperature of the mold and heat capacity Make adjustments;

[0040] S32, in the transition cooling stage, by adjusting the coolant flow rate and flow , to achieve temperature balance between the inside and the surface of the mold, by adjusting the temperature difference inside the mold and dynamic adjustment of coolant flow rate to control the heat transfer rate;

[0041] S33, in the equilibrium cooling stage, based on the temperature data in the mold and real-time monitoring of coolant flow rate , by controlling the coolant flow Make the temperature inside and outside the mold evenly distributed, and the coolant flow Proportional to the temperature difference between the various areas in the mold;

[0042] S34, continue to adjust the coolant flow rate and flow rate until the temperature difference between the inside and outside of the mold is less than the preset temperature difference threshold ;

[0043] S35. After cooling is completed, based on the real-time monitored temperature distribution, the mold surface and internal temperature are further adjusted to make the temperature uniform and achieve the ideal molding quality. The final state data of the cooling process is output according to the adjustment of the coolant flow rate and flow rate.

[0044] Optionally, the S4 specifically includes:

[0045] S41. Real-time monitoring of wall thickness in different areas of the mold and temperature data , transmit it to the cooling control module, generate cooling demand information for each area, and adjust the coolant flow rate according to the cooling requirements of the complex geometric structure and thin-walled areas of the mold;

[0046] S42, based on wall thickness of each area and temperature deviation , calculate the cooling intensity of each area , the intensity With wall thickness and temperature deviation The nonlinear relationship between is expressed by the following formula:

[0047] ;

[0048] in, is the adjustment coefficient, and is the nonlinear index of temperature deviation and wall thickness, is the wall thickness correction factor;

[0049] S43. According to the calculated cooling intensity, the coolant flow rate of each area is further adjusted. There is a dynamic relationship between the coolant flow rate, the cooling intensity and the temperature deviation. The relationship between the flow rate, the cooling intensity and the flow rate is expressed by the following formula:

[0050] ;

[0051] in, is the current coolant flow rate, is the maximum flow rate, is the flow regulation coefficient, and are the exponential correction coefficients for temperature deviation and flow rate, respectively;

[0052] S44, real-time monitoring of coolant flow in each area through feedback control system Dynamically adjust the coolant flow rate according to temperature changes, so that the coolant flow rate and strength of the complex geometric areas and thin-walled structures of the mold match the structural requirements of the mold, avoiding quality problems caused by local cooling differences;

[0053] S45: After the cooling intensity in each area reaches the set requirements, continue to optimize the coolant flow To ensure the coolant flow and temperature gradient in the mold The proportional relationship meets the predetermined standard, so that the temperature distribution in each area is uniform, avoiding material stress and deformation caused by excessive local temperature difference;

[0054] S46, by adjusting the coolant flow rate and flow rate until all areas of the mold reach a preset temperature uniformity standard, the dynamic relationship between the coolant flow rate and the wall thickness and temperature difference in each area of ​​the mold is stabilized to ensure the final molding quality;

[0055] S47. After cooling is completed, the final cooling process data is output, including the coolant flow, temperature data and wall thickness of each area, as well as the optimized cooling state data.

[0056] Optionally, the S5 specifically includes:

[0057] S51. During the cooling process, monitor the temperature of the coolant in real time , heat energy consumption and flow path, and obtain the heat energy consumption data of the coolant through the heat recovery system , and calculate the coolant reuse efficiency ;

[0058] S52, according to the coolant return temperature difference and heat consumption , calculate the coolant reuse flow rate for each area , the flow rate and heat energy consumption and flow rate There is a dynamic relationship between:

[0059] ;

[0060] in, is the adjustment coefficient, , and is the exponential correction factor for temperature difference, heat energy consumption and flow rate, is the volume of coolant, is the current coolant flow rate;

[0061] S53, by dynamically adjusting the coolant reuse flow , optimize the flow path of the coolant in the return path, so that the coolant can evenly recover heat energy in different mold areas and optimize the reuse efficiency. The optimized flow path enables the coolant to enter the area with higher heat load more effectively;

[0062] S54, Coolant flow based on real-time monitoring , Temperature data and heat consumption , dynamically adjust the coolant flow rate through the feedback control system and flow , so that the coolant flow rate matches the heat load requirements of different areas of the mold, optimizing cooling efficiency and reducing energy consumption;

[0063] S55. During the cooling process, continuously monitor and adjust the coolant flow rate , so that the cooling requirements of each area of ​​the mold can be fully met, avoiding quality problems caused by uneven local cooling;

[0064] S56. After the cooling is completed, the final cooling data is output, including the reuse flow rate of the coolant, the reflux temperature difference, the heat energy consumption, the optimized cooling path information and the coolant flow rate, so as to make efficient use of the energy in the cooling process.

[0065] Optionally, the S6 specifically includes:

[0066] S61, after cooling is completed, based on the temperature history data in the mold The intelligent temperature management system can adjust the temperature of the mold in real time to make the temperature of each area in the mold uniform and reach the preset target temperature. , the regulation process is based on the coolant flow Dynamic adjustment of

[0067] S62, based on the real-time temperature data in the mold With historical data The difference in temperature inside the mold is calculated , and optimize the coolant flow rate through the temperature adjustment algorithm according to the temperature difference , making the temperature difference Close to zero, achieving temperature uniformity of the mold;

[0068] S63, monitor the amount of coolant remaining in the mold and adjust the cleaning fluid flow through the automatic cleaning system , remove coolant residue and molding materials in real time to ensure that there is no attachment on the mold surface and avoid the negative impact of residue on the mold;

[0069] S64, according to the remaining amount of coolant Dynamically adjust the cleaning fluid flow rate according to the cleaning needs of different areas of the mold , making the cleaning process efficient and not affecting the operation of the mold temperature control system;

[0070] S65, real-time monitoring of coolant flow through feedback control system and cleaning fluid flow , optimize the interaction between the two, make the mold temperature regulation and cleaning process coordinated, avoid temperature fluctuations caused by the cleaning process, and make the mold surface and inner cavity temperature stable;

[0071] S66: After cooling and cleaning the coolant residue and molding materials, output the final temperature adjustment data and cleaning status data, including the temperature change of each area, the cleaning liquid flow rate, , Residual amount of coolant And the temperature status information of the mold, so that the mold can be cleaned efficiently and the temperature uniformity can be guaranteed.

[0072] Optional modules include:

[0073] Heating module: Through the dynamic heating strategy of different zones, the heating intensity of different zones is adjusted according to the real-time monitoring of material temperature, density and viscosity data, so as to make the temperature inside and outside of the material consistent and eliminate the temperature difference problem in the molding process;

[0074] Temperature control module: Through the temperature control unit in the mold, based on the real-time feedback data from the sensor, the temperature of each area of ​​the mold is dynamically adjusted to control the flow state and filling effect of the material in the mold cavity, avoiding fluidity changes and surface defects caused by local temperature differences;

[0075] Cooling module: Implement a phased cooling strategy and combine it with local cooling adjustment technology to gradually adjust the coolant flow rate and flow rate to evenly distribute the temperature inside and outside the mold and alleviate material stress and deformation caused by temperature differences;

[0076] Wall thickness adaptive cooling module: Based on real-time monitoring of wall thickness and temperature data, the coolant flow rate is dynamically adjusted to match the cooling intensity of different areas with the structural requirements, avoiding quality problems caused by local cooling differences;

[0077] Coolant recycling module: Through thermal data monitoring and flow path optimization, the coolant can be recycled and reused, and the use of coolant can be dynamically adjusted to optimize cooling efficiency and reduce energy demand;

[0078] Intelligent temperature control module: Based on the temperature history data and cooling curve, it adjusts the temperature state of the mold and cleans the coolant residue and molding materials in the mold to ensure smooth subsequent molding processing;

[0079] Sensor and control module: Use multiple sensors to monitor the status of polyurethane elastomer materials in real time, and process data through the control module to generate heating adjustment parameters and temperature control output power to achieve precise control and automatic adjustment.

[0080] The beneficial effects of the present invention are:

[0081] The present invention effectively solves the material stress and deformation problems caused by temperature differences commonly seen in the molding process of polyurethane elastomers by introducing a staged cooling strategy and local cooling adjustment technology. Compared with traditional cooling methods, the present invention can more accurately control the temperature distribution inside and outside the mold, avoiding surface quality problems and molding defects caused by excessive temperature fluctuations. Especially in the initial cooling stage, the gradual heat transfer of low-flow coolant can effectively avoid drastic temperature fluctuations, thereby reducing deformation and cracking caused by uneven cooling.

[0082] The wall thickness adaptive cooling control technology of the present invention, combined with real-time monitored wall thickness and temperature data, can dynamically adjust the flow rate of the coolant to ensure that the cooling intensity of each area in the mold matches the structural requirements. The application of this technology solves the problem of uneven cooling in traditional cooling methods due to the complex geometric structure of the mold and thin-walled areas, and avoids quality fluctuations caused by local excessive or insufficient cooling. By adjusting the coolant flow rate in real time, the present invention ensures that the cooling effect of the mold is more precise and improves the dimensional accuracy and surface quality of the molded parts.

[0083] The present invention also proposes a coolant recycling and reuse mechanism, which achieves efficient utilization of the coolant by optimizing the flow path and usage of the coolant, improves energy utilization efficiency in the cooling process, reduces coolant consumption and dependence on external resources, and the recycling of the coolant extends its service life and reduces the frequency of replacement, having strong economic and environmental advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0084] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0085] Figure 1 The present invention provides a flow chart of a special module for cooling and molding a polyurethane elastomer and a cooling method thereof. DETAILED DESCRIPTION

[0086] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0087] refer to Figure 1 , a special module for cooling and molding of polyurethane elastomer and a cooling method thereof, comprising the following steps:

[0088] S1. Pre-treat the polyurethane elastomer to achieve uniform heating of the material. Through the zoned dynamic heating strategy, the heating intensity of different areas is adjusted according to the real-time monitored material temperature, density and viscosity data to achieve consistency of the temperature inside and outside the material and eliminate molding problems caused by temperature differences.

[0089] S2. Place the preheated polyurethane elastomer into the mold, and dynamically adjust the temperature of each area in the mold based on the real-time feedback data from the sensor through the temperature control system in the mold to control the flow state and filling effect of the material in the mold cavity, thereby avoiding fluidity changes and surface quality problems caused by local temperature differences;

[0090] S3. Combined with the heat capacity characteristics and cooling requirements of the mold, a phased cooling strategy is implemented and local cooling adjustment technology is integrated. The cooling process includes three stages. In the initial cooling stage, a low flow coolant flow rate is used to gradually transfer heat to the mold surface. In the transition cooling stage, the heat distribution inside and on the surface of the mold is balanced by adjusting the coolant flow rate and flow. In the balanced cooling stage, based on real-time control of the coolant flow rate and flow rate, the uniform distribution of temperature inside and outside the mold is achieved, and the material stress and deformation caused by temperature difference changes are alleviated;

[0091] S4. For complex geometric areas and thin-walled structures of the mold, the wall thickness adaptive cooling control technology is used. Based on the real-time monitoring of wall thickness and temperature data, the flow rate of the coolant is dynamically adjusted to match the cooling intensity of different areas with the structural requirements, avoiding quality problems caused by local cooling differences;

[0092] S5. Use the coolant recycling mechanism to dynamically adjust the coolant circulation path and usage through thermal energy data monitoring and flow path optimization, optimize cooling efficiency and external resource requirements, and control energy usage during the cooling process;

[0093] S6. After cooling is completed, based on the intelligent temperature management system and automatic cleaning function, the temperature state of the mold is adjusted using the temperature history data and cooling curve in the mold, and the coolant residue and molding material in the mold are cleaned.

[0094] In this implementation manner, the S1 specifically includes:

[0095] S11, placing the polyurethane elastomer material in a partitioned dynamic heating device, the heating device being composed of a plurality of independent heating units, each heating unit being capable of independently adjusting the heating intensity based on an input parameter;

[0096] S12, monitoring the temperature, density and viscosity data of the polyurethane elastomer in each partition in real time through a temperature sensor, a density sensor and a viscosity sensor, and generating a heating adjustment parameter after the data is processed by a control module;

[0097] S13, dynamically calculate the heating intensity of each partition based on the real-time monitored temperature, density and viscosity :

[0098] ;

[0099] in, is the heating intensity of the ith partition, represents the temperature gradient of the ith partition, and are the density and viscosity of the ith partition, respectively, and k is the adjustment coefficient related to materials and equipment;

[0100] S14: During the heating intensity adjustment process, all zones meet the following temperature uniformity conditions:

[0101] ;

[0102] in, and are the highest and lowest temperatures in the material, is a preset temperature gradient threshold;

[0103] S15. After heating is completed, the uniform temperature of the polyurethane elastomer is derived , and its temperature distribution range meets the following conditions:

[0104] .

[0105] In this implementation, S2 specifically includes:

[0106] S21, placing the preheated polyurethane elastomer into a mold consisting of multiple independent temperature control areas, each area of ​​the mold is equipped with a temperature control unit and a distributed sensor, which can collect temperature data in real time and transmit it to the temperature control management module;

[0107] S22, real-time monitoring of the temperature of each area in the mold through a distributed sensor network and transmitting the data to a control module;

[0108] S23, according to temperature deviation and material properties, dynamically calculate the output power of the temperature control unit in the jth area :

[0109] ;

[0110] Among them, k is the adjustment coefficient, is the temperature deviation, is the target temperature, is the specific heat capacity of polyurethane elastomer, is the material quality of the jth region, To control the time interval, is the power allocation factor;

[0111] S24. Optimize the output power of the temperature control unit based on the flow state and filling effect of the polyurethane elastomer in the mold cavity, so that the flow path of the material in the mold cavity is uniform, and prevent uneven filling or surface defects caused by local temperature differences;

[0112] S25. Continue to adjust the temperature control unit until the temperature of all areas in the mold meets the following uniformity conditions:

[0113] ;

[0114] in, and Respectively represent the highest and lowest temperatures in the jth region of the mold, is a preset temperature gradient threshold;

[0115] S26. After the temperature uniformity condition is met, verify the temperature distribution in the mold to ensure that the material fluidity and filling effect meet the predetermined goals.

[0116] In this implementation, S3 specifically includes:

[0117] S31. In the initial cooling stage, use low-flow coolant to gradually transfer heat through the cooling channels on the mold surface to avoid drastic temperature fluctuations. The flow rate of low-flow coolant According to the initial temperature of the mold and heat capacity Make adjustments;

[0118] S32, in the transition cooling stage, by adjusting the coolant flow rate and flow , to achieve temperature balance between the inside and the surface of the mold, by adjusting the temperature difference inside the mold and dynamic adjustment of coolant flow rate to control the heat transfer rate;

[0119] S33, in the equilibrium cooling stage, based on the temperature data in the mold and real-time monitoring of coolant flow rate , by controlling the coolant flow Make the temperature inside and outside the mold evenly distributed, and the coolant flow Proportional to the temperature difference between the various areas in the mold;

[0120] S34, continue to adjust the coolant flow rate and flow rate until the temperature difference between the inside and outside of the mold is less than the preset temperature difference threshold ;

[0121] S35. After cooling is completed, based on the real-time monitored temperature distribution, the mold surface and internal temperature are further adjusted to make the temperature uniform and achieve the ideal molding quality. The final state data of the cooling process is output according to the adjustment of the coolant flow rate and flow rate.

[0122] In this implementation, S4 specifically includes:

[0123] S41. Real-time monitoring of wall thickness in different areas of the mold and temperature data , transmit it to the cooling control module, generate cooling demand information for each area, and adjust the coolant flow rate according to the cooling requirements of the complex geometric structure and thin-walled areas of the mold;

[0124] S42, based on wall thickness of each area and temperature deviation , calculate the cooling intensity of each area , the intensity With wall thickness and temperature deviation The nonlinear relationship between is expressed by the following formula:

[0125] ;

[0126] in, is the adjustment coefficient, and is the nonlinear index of temperature deviation and wall thickness, is the wall thickness correction factor;

[0127] S43. According to the calculated cooling intensity, the coolant flow rate of each area is further adjusted. There is a dynamic relationship between the coolant flow rate, the cooling intensity and the temperature deviation. The relationship between the flow rate, the cooling intensity and the flow rate is expressed by the following formula:

[0128] ;

[0129] in, is the current coolant flow rate, is the maximum flow rate, is the flow regulation coefficient, and are the exponential correction coefficients for temperature deviation and flow rate, respectively;

[0130] S44, real-time monitoring of coolant flow in each area through feedback control system Dynamically adjust the coolant flow rate according to temperature changes, so that the coolant flow rate and strength of the complex geometric areas and thin-walled structures of the mold match the structural requirements of the mold, avoiding quality problems caused by local cooling differences;

[0131] S45: After the cooling intensity in each area reaches the set requirements, continue to optimize the coolant flow To ensure the coolant flow and temperature gradient in the mold The proportional relationship meets the predetermined standard, so that the temperature distribution in each area is uniform, avoiding material stress and deformation caused by excessive local temperature difference;

[0132] S46, by adjusting the coolant flow rate and flow rate until all areas of the mold reach a preset temperature uniformity standard, the dynamic relationship between the coolant flow rate and the wall thickness and temperature difference in each area of ​​the mold is stabilized to ensure the final molding quality;

[0133] S47. After cooling is completed, the final cooling process data is output, including the coolant flow, temperature data and wall thickness of each area, as well as the optimized cooling state data.

[0134] In this implementation manner, S5 specifically includes:

[0135] S51. During the cooling process, monitor the temperature of the coolant in real time , heat energy consumption and flow path, and obtain the heat energy consumption data of the coolant through the heat recovery system , and calculate the coolant reuse efficiency ;

[0136] S52, according to the coolant return temperature difference and heat consumption , calculate the coolant reuse flow rate for each area , the flow rate and heat energy consumption and flow rate There is a dynamic relationship between:

[0137] ;

[0138] in, is the adjustment coefficient, , and is the exponential correction factor for temperature difference, heat energy consumption and flow rate, is the volume of coolant, is the current coolant flow rate;

[0139] S53, by dynamically adjusting the coolant reuse flow , optimize the flow path of the coolant in the return path, so that the coolant can evenly recover heat energy in different mold areas and optimize the reuse efficiency. The optimized flow path enables the coolant to enter the area with higher heat load more effectively;

[0140] S54, Coolant flow based on real-time monitoring , Temperature data and heat consumption , dynamically adjust the coolant flow rate through the feedback control system and flow , so that the coolant flow rate matches the heat load requirements of different areas of the mold, optimizing cooling efficiency and reducing energy consumption;

[0141] S55. During the cooling process, continuously monitor and adjust the coolant flow rate , so that the cooling requirements of each area of ​​the mold can be fully met, avoiding quality problems caused by uneven local cooling;

[0142] S56. After the cooling is completed, the final cooling data is output, including the reuse flow rate of the coolant, the reflux temperature difference, the heat energy consumption, the optimized cooling path information and the coolant flow rate, so as to make efficient use of the energy in the cooling process.

[0143] In this implementation manner, S6 specifically includes:

[0144] S61, after cooling is completed, based on the temperature history data in the mold The intelligent temperature management system can adjust the temperature of the mold in real time to make the temperature of each area in the mold uniform and reach the preset target temperature. , the regulation process is based on the coolant flow Dynamic adjustment of

[0145] S62, based on the real-time temperature data in the mold With historical data The difference in temperature inside the mold is calculated , and optimize the coolant flow rate through the temperature adjustment algorithm according to the temperature difference , making the temperature difference Close to zero, achieving temperature uniformity of the mold;

[0146] S63, monitor the amount of coolant remaining in the mold and adjust the cleaning fluid flow through the automatic cleaning system , remove coolant residue and molding materials in real time to ensure that there is no attachment on the mold surface and avoid the negative impact of residue on the mold;

[0147] S64, according to the remaining amount of coolant Dynamically adjust the cleaning fluid flow rate according to the cleaning needs of different areas of the mold , making the cleaning process efficient without affecting the operation of the mold temperature control system;

[0148] S65, real-time monitoring of coolant flow through feedback control system and cleaning fluid flow , optimize the interaction between the two, make the mold temperature regulation and cleaning process coordinated, avoid temperature fluctuations caused by the cleaning process, and make the mold surface and inner cavity temperature stable;

[0149] S66: After cooling and cleaning the coolant residue and molding materials, output the final temperature adjustment data and cleaning status data, including the temperature change of each area, the cleaning liquid flow rate, , Residual amount of coolant And the temperature status information of the mold, so that the mold can be cleaned efficiently and the temperature uniformity can be guaranteed.

[0150] In this embodiment, the following modules are included:

[0151] Heating module: Through the dynamic heating strategy of different zones, the heating intensity of different zones is adjusted according to the real-time monitoring of material temperature, density and viscosity data, so as to make the temperature inside and outside of the material consistent and eliminate the temperature difference problem in the molding process;

[0152] Temperature control module: Through the temperature control unit in the mold, based on the real-time feedback data from the sensor, the temperature of each area of ​​the mold is dynamically adjusted to control the flow state and filling effect of the material in the mold cavity, avoiding fluidity changes and surface defects caused by local temperature differences;

[0153] Cooling module: Implement a phased cooling strategy and combine it with local cooling adjustment technology to gradually adjust the coolant flow rate and flow rate to evenly distribute the temperature inside and outside the mold and alleviate material stress and deformation caused by temperature differences;

[0154] Wall thickness adaptive cooling module: Based on real-time monitoring of wall thickness and temperature data, the coolant flow rate is dynamically adjusted to match the cooling intensity of different areas with the structural requirements, avoiding quality problems caused by local cooling differences;

[0155] Coolant recycling module: Through thermal data monitoring and flow path optimization, the coolant can be recycled and reused, and the use of coolant can be dynamically adjusted to optimize cooling efficiency and reduce energy demand;

[0156] Intelligent temperature control module: Based on the temperature history data and cooling curve, it adjusts the temperature state of the mold and cleans the coolant residue and molding materials in the mold to ensure smooth subsequent molding processing;

[0157] Sensor and control module: Use multiple sensors to monitor the status of polyurethane elastomer materials in real time, and process data through the control module to generate heating adjustment parameters and temperature control output power to achieve precise control and automatic adjustment.

[0158] Embodiment 1:

[0159] In order to verify the feasibility of the present invention in implementation, the present invention is applied to the molding process of polyurethane elastomer. Mold cooling is a crucial process link. In order to ensure the quality of the material and the molding accuracy during the molding process, the cooling rate and temperature uniformity must be controlled to avoid material stress concentration due to excessive local temperature difference, and even quality problems such as deformation and cracks. Traditional cooling methods usually use coolants with uniform flow rate, but since polyurethane elastomers have more complex thermal properties and mold structures, their cooling process often faces the challenge of large local temperature differences, which in turn affects the molding effect. In order to overcome this problem, the present invention proposes a cooling method for cooling molding of polyurethane elastomers. By adopting technologies such as phased cooling strategy, wall thickness adaptive control, and coolant recycling and reuse, the cooling efficiency can be effectively improved and the molding quality can be guaranteed.

[0160] The production line of a well-known automobile parts manufacturer was selected as the application scenario. The production line specializes in the production of a polyurethane elastomer seat support for automobile seats. The mold design of this product is relatively complex, there is a large temperature difference on the surface, and its thin-walled structure has high requirements for cooling. The traditional cooling method has not been able to effectively solve the problem of excessive temperature difference in this process, resulting in frequent molding defects in the production process, such as local stress concentration, deformation and surface unevenness of the material. The company decided to use the cooling method proposed in the present invention for optimization.

[0161] During the production process, the preheated polyurethane elastomer material is placed in a preset mold. At this time, the temperature of the mold and the temperature of the material are not completely consistent, especially in the complex geometric areas and thin-walled structures of the mold. The temperature difference is more obvious. In order to avoid uneven flow caused by local temperature differences and affect the filling effect, the zoned dynamic heating strategy mentioned in the present invention is adopted. By real-time monitoring of the temperature of each area in the mold and adjusting the heating intensity according to the heating requirements of different areas, the temperature distribution in the mold is ensured to be uniform, thereby avoiding uneven cooling caused by excessive temperature differences.

[0162] In the initial cooling stage, low-flow coolant is used for cooling to avoid excessive mold stress caused by rapid temperature changes. The flow rate of the coolant is determined by the initial temperature and heat capacity of the mold. The flow rate is low to ensure that heat is transferred at a stable rate. The coolant transfers heat through the cooling channel on the mold surface to ensure that the mold surface temperature gradually decreases. After 10 minutes of initial cooling, the temperature of the mold surface drops from the original 180°C to 120°C, the temperature difference gradually decreases, and the coolant flow rate is maintained at 1.2L / min.

[0163] After entering the transition cooling stage, the coolant flow rate and flow rate begin to increase moderately to balance the temperature distribution between the inside and surface of the mold. The temperature difference in the mold is monitored in real time through the temperature control system and sensors. When the temperature difference between the inner surface and the inside of the mold reaches 10°C, the system begins to adjust the coolant flow rate to 2.5L / min and gradually increase the output power of the temperature control unit to ensure that the temperature difference continues to decrease and the cooling process is effectively controlled. At this stage, the dynamic adjustment of the coolant flow rate and flow rate optimizes the heat conduction between the inside and surface of the mold and reduces the negative impact of the temperature difference on the cooling effect. After 20 minutes of transition cooling, the internal temperature of the mold dropped to 90°C and the surface temperature was 100°C. The temperature difference between the two was reduced to 5°C, and the coolant flow rate was increased to 3.5L / min, which fully ensured the cooling uniformity.

[0164] During the balanced cooling stage, a strategy of controlling the coolant flow rate based on real-time temperature data was adopted. When the temperature difference between the inside and outside of the mold dropped below the preset threshold of 5°C, the system entered the balanced cooling stage, and the coolant flow rate was maintained at 3.5L / min. The coolant flow rate continued to be adjusted according to the real-time temperature until the temperature inside and outside the mold was completely balanced and the cooling was completed. During this process, the temperature inside the mold eventually dropped to 80°C, and the external temperature dropped to 82°C. The temperature difference was controlled within 2°C, which greatly reduced the stress and deformation of the molding material.

[0165] To further improve the cooling efficiency, the present invention also adopts a cooling liquid recycling mechanism. After the cooling liquid passes through the cooling system, it is not discharged immediately, but recovered through the thermal data monitoring system, and the flow path and use of the cooling liquid are adjusted to optimize the cooling efficiency and reduce the consumption of external resources. During the implementation process, the amount of cooling liquid used was reduced by about 20% compared with the traditional method, while the cooling efficiency was increased by 10%.

[0166] Through this series of optimization measures, the temperature difference control and cooling efficiency of the polyurethane elastomer cooling molding process have been significantly improved, and the molding quality has been effectively guaranteed. After implementing this cooling method, the molding defect rate of the production line has been significantly reduced from the original 8% to 2%, and the quality of the molded products has been greatly improved, the product surface quality has become smoother, the dimensional accuracy has been guaranteed, and the process stability has been improved.

[0167] Table 1 Changes of key parameters in cooling process

[0168]

[0169] Table 2 Comparison of molding quality

[0170]

[0171] From the table data, we can see that the zoned dynamic heating strategy during the heating process can adjust the heating intensity of different areas in real time, effectively solving the material stress and deformation problems caused by excessive temperature difference during the molding process. Through this method, the heating uniformity of the material is improved by about 15%, avoiding the defects caused by uneven heating. In the process of mold temperature control, the real-time adjustment strategy of the temperature control unit is adopted to accurately adjust the temperature of each area according to the temperature difference and material characteristics of different areas. In this way, it can effectively avoid uneven filling or surface defects caused by local temperature unevenness. The accuracy of the temperature control system is improved by 12%, and the molding surface quality is also improved by 20%. In terms of multi-stage adjustment of the cooling process, the dynamic adjustment of the coolant flow rate and flow rate optimizes the cooling effect. Especially in the balanced cooling stage, the temperature difference inside and outside the mold is effectively controlled, material stress and deformation problems are alleviated, and the adjustment of coolant flow reduces the temperature difference inside and outside the mold by 30%, significantly improving the quality of the molded products. For thin-walled areas and complex geometric shapes of the mold, wall thickness adaptive control technology is implemented. By real-time monitoring of wall thickness and temperature data, the coolant flow is adjusted to ensure balanced cooling intensity in each area. The matching degree between coolant flow and cooling intensity is improved by 18%, effectively avoiding quality problems caused by cooling differences. The coolant recycling and reuse mechanism significantly improves cooling efficiency and reduces energy consumption by optimizing the coolant flow path and usage method. Through this mechanism, energy consumption is reduced by 30% and cooling efficiency is improved.

[0172] In summary, the present invention can effectively improve the cooling efficiency and product quality in the molding process of polyurethane elastomers, and solve the problems commonly existing in the prior art, such as uneven temperature control, inaccurate coolant flow regulation, and low cooling efficiency.

[0173] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cooling method for cooling a polyurethane elastomer, characterized in that: The steps include: S1. Pre-treat the polyurethane elastomer to achieve uniform heating of the material. Through the zoned dynamic heating strategy, the heating intensity of different areas is adjusted according to the real-time monitored material temperature, density and viscosity data to achieve consistency of the temperature inside and outside the material and eliminate molding problems caused by temperature differences. S2. Place the preheated polyurethane elastomer into the mold, and dynamically adjust the temperature of each area in the mold based on the real-time feedback data from the sensor through the temperature control system in the mold to control the flow state and filling effect of the material in the mold cavity, thereby avoiding fluidity changes and surface quality problems caused by local temperature differences; S3. Combined with the heat capacity characteristics and cooling requirements of the mold, a phased cooling strategy is implemented and local cooling adjustment technology is integrated. The cooling process includes three stages. In the initial cooling stage, a low flow coolant flow rate is used to gradually transfer heat to the mold surface. In the transition cooling stage, the heat distribution inside and on the surface of the mold is balanced by adjusting the coolant flow rate and flow. In the balanced cooling stage, based on real-time control of the coolant flow rate and flow rate, the uniform distribution of temperature inside and outside the mold is achieved, and the material stress and deformation caused by temperature difference changes are alleviated; S4. For complex geometric areas and thin-walled structures of the mold, the wall thickness adaptive cooling control technology is used. Based on the real-time monitoring of wall thickness and temperature data, the flow rate of the coolant is dynamically adjusted to match the cooling intensity of different areas with the structural requirements, avoiding quality problems caused by local cooling differences; S5. Use the coolant recycling mechanism to dynamically adjust the coolant circulation path and usage through thermal energy data monitoring and flow path optimization, optimize cooling efficiency and external resource requirements, and control energy usage during the cooling process; S6. After cooling is completed, based on the intelligent temperature management system and automatic cleaning function, the temperature state of the mold is adjusted using the temperature history data and cooling curve in the mold, and the coolant residue and molding material in the mold are cleaned.

2. The cooling method for cooling and molding a polyurethane elastomer according to claim 1, characterized in that: The S1 specifically includes: S11, placing the polyurethane elastomer material in a partitioned dynamic heating device, the heating device being composed of a plurality of independent heating units, each heating unit being capable of independently adjusting the heating intensity based on an input parameter; S12, monitoring the temperature, density and viscosity data of the polyurethane elastomer in each partition in real time through a temperature sensor, a density sensor and a viscosity sensor, and generating a heating adjustment parameter after the data is processed by a control module; S13, dynamically calculate the heating intensity of each partition based on the real-time monitored temperature, density and viscosity : ； in, is the heating intensity of the ith partition, represents the temperature gradient of the ith partition, and are the density and viscosity of the ith partition, respectively, and k is the adjustment coefficient related to materials and equipment; S14: During the heating intensity adjustment process, all zones meet the following temperature uniformity conditions: ； in, and are the highest and lowest temperatures in the material, is a preset temperature gradient threshold; S15. After heating is completed, the uniform temperature of the polyurethane elastomer is derived , and its temperature distribution range meets the following conditions: 。 3. The cooling method for cooling and molding a polyurethane elastomer according to claim 1, characterized in that: The S2 specifically includes: S21, placing the preheated polyurethane elastomer into a mold consisting of multiple independent temperature control areas, each area of ​​the mold is equipped with a temperature control unit and a distributed sensor, which can collect temperature data in real time and transmit it to the temperature control management module; S22, real-time monitoring of the temperature of each area in the mold through a distributed sensor network and transmitting the data to a control module; S23, according to temperature deviation and material properties, dynamically calculate the output power of the temperature control unit in the jth area : ； Among them, k is the adjustment coefficient, is the temperature deviation, is the target temperature, is the specific heat capacity of polyurethane elastomer, is the material quality of the jth region, To control the time interval, is the power allocation factor; S24. Optimize the output power of the temperature control unit based on the flow state and filling effect of the polyurethane elastomer in the mold cavity, so that the flow path of the material in the mold cavity is uniform, and prevent uneven filling or surface defects caused by local temperature differences; S25. Continue to adjust the temperature control unit until the temperature of all areas in the mold meets the following uniformity conditions: ； in, and Respectively represent the highest and lowest temperatures in the jth region of the mold, is a preset temperature gradient threshold; S26. After the temperature uniformity condition is met, verify the temperature distribution in the mold to ensure that the material fluidity and filling effect meet the predetermined goals.

4. The cooling method for cooling and molding a polyurethane elastomer according to claim 1, characterized in that: The S3 specifically includes: S31. In the initial cooling stage, use low-flow coolant to gradually transfer heat through the cooling channels on the mold surface to avoid drastic temperature fluctuations. The flow rate of low-flow coolant According to the initial temperature of the mold and heat capacity Make adjustments; S32, in the transition cooling stage, by adjusting the coolant flow rate and flow , to achieve temperature balance between the inside and the surface of the mold, by adjusting the temperature difference inside the mold and dynamic adjustment of coolant flow rate to control the heat transfer rate; S33, in the equilibrium cooling stage, based on the temperature data in the mold and real-time monitoring of coolant flow rate , by controlling the coolant flow Make the temperature inside and outside the mold evenly distributed, and the coolant flow Proportional to the temperature difference between the various areas in the mold; S34, continue to adjust the coolant flow rate and flow rate until the temperature difference between the inside and outside of the mold is less than the preset temperature difference threshold ; S35. After cooling is completed, based on the real-time monitored temperature distribution, the mold surface and internal temperature are further adjusted to make the temperature uniform and achieve the ideal molding quality. The final state data of the cooling process is output according to the adjustment of the coolant flow rate and flow rate.

5. The cooling method for cooling and molding a polyurethane elastomer according to claim 1, characterized in that: The S4 specifically includes: S41. Real-time monitoring of wall thickness in different areas of the mold and temperature data , transmit it to the cooling control module, generate cooling demand information for each area, and adjust the coolant flow rate according to the cooling requirements of the complex geometric structure and thin-walled areas of the mold; S42, based on wall thickness of each area and temperature deviation , calculate the cooling intensity of each area , the intensity With wall thickness and temperature deviation The nonlinear relationship between is expressed by the following formula: ； in, is the adjustment coefficient, and is the nonlinear index of temperature deviation and wall thickness, is the wall thickness correction factor; S43. According to the calculated cooling intensity, the coolant flow rate of each area is further adjusted. There is a dynamic relationship between the coolant flow rate, the cooling intensity and the temperature deviation. The relationship between the flow rate, the cooling intensity and the flow rate is expressed by the following formula: ； in, is the current coolant flow rate, is the maximum flow rate, is the flow regulation coefficient, and are the exponential correction coefficients for temperature deviation and flow rate, respectively; S44, real-time monitoring of coolant flow in each area through feedback control system Dynamically adjust the coolant flow rate according to temperature changes, so that the coolant flow rate and strength of the complex geometric areas and thin-walled structures of the mold match the structural requirements of the mold, avoiding quality problems caused by local cooling differences; S45: After the cooling intensity in each area reaches the set requirements, continue to optimize the coolant flow To ensure the coolant flow and temperature gradient in the mold The proportional relationship meets the predetermined standard, so that the temperature distribution in each area is uniform, avoiding material stress and deformation caused by excessive local temperature difference; S46, by adjusting the coolant flow rate and flow rate until all areas of the mold reach a preset temperature uniformity standard, the dynamic relationship between the coolant flow rate and the wall thickness and temperature difference in each area of ​​the mold is stabilized to ensure the final molding quality; S47. After cooling is completed, the final cooling process data is output, including the coolant flow, temperature data and wall thickness of each area, as well as the optimized cooling state data.

6. The cooling method for cooling and molding a polyurethane elastomer according to claim 1, characterized in that: The S5 specifically includes: S51. During the cooling process, monitor the temperature of the coolant in real time , heat energy consumption and flow path, and obtain the heat energy consumption data of the coolant through the heat recovery system , and calculate the coolant reuse efficiency ; S52, according to the coolant return temperature difference and heat consumption , calculate the coolant reuse flow rate for each area , the flow rate and heat energy consumption and flow rate There is a dynamic relationship between: ； in, is the adjustment coefficient, , and is the exponential correction factor for temperature difference, heat energy consumption and flow rate, is the volume of coolant, is the current coolant flow rate; S53, by dynamically adjusting the coolant reuse flow , optimize the flow path of the coolant in the return path, so that the coolant can evenly recover heat energy in different mold areas and optimize the reuse efficiency. The optimized flow path enables the coolant to enter the area with higher heat load more effectively; S54, Coolant flow based on real-time monitoring , Temperature data and heat consumption , dynamically adjust the coolant flow rate through the feedback control system and flow , so that the coolant flow rate matches the heat load requirements of different areas of the mold, optimizing cooling efficiency and reducing energy consumption; S55. During the cooling process, continuously monitor and adjust the coolant flow rate , so that the cooling requirements of each area of ​​the mold can be fully met, avoiding quality problems caused by uneven local cooling; S56. After the cooling is completed, the final cooling data is output, including the reuse flow rate of the coolant, the reflux temperature difference, the heat energy consumption, the optimized cooling path information and the coolant flow rate, so as to make efficient use of the energy in the cooling process.

7. The cooling method for cooling and molding a polyurethane elastomer according to claim 1, characterized in that: The S6 specifically includes: S61, after cooling is completed, based on the temperature history data in the mold The intelligent temperature management system can adjust the temperature of the mold in real time to make the temperature of each area in the mold uniform and reach the preset target temperature. , the regulation process is based on the coolant flow Dynamic adjustment of S62, based on the real-time temperature data in the mold With historical data The difference in temperature inside the mold is calculated , and optimize the coolant flow rate through the temperature adjustment algorithm according to the temperature difference , making the temperature difference Close to zero, achieving temperature uniformity of the mold; S63, monitor the amount of coolant remaining in the mold and adjust the cleaning fluid flow through the automatic cleaning system , remove coolant residue and molding materials in real time to ensure that there is no attachment on the mold surface and avoid the negative impact of residue on the mold; S64, according to the remaining amount of coolant Dynamically adjust the cleaning fluid flow rate according to the cleaning needs of different areas of the mold , making the cleaning process efficient without affecting the operation of the mold temperature control system; S65, real-time monitoring of coolant flow through feedback control system and cleaning fluid flow , optimize the interaction between the two, make the mold temperature regulation and cleaning process coordinated, avoid temperature fluctuations caused by the cleaning process, and make the mold surface and inner cavity temperature stable; S66: After cooling and cleaning the coolant residue and molding materials, output the final temperature adjustment data and cleaning status data, including the temperature change of each area, the cleaning liquid flow rate, , Residual amount of coolant And the temperature status information of the mold, so that the mold can be cleaned efficiently and the temperature uniformity can be guaranteed.

8. A special module for cooling and molding polyurethane elastomer, characterized in that: Includes the following modules: Heating module: Through the dynamic heating strategy of different zones, the heating intensity of different zones is adjusted according to the real-time monitoring of material temperature, density and viscosity data, so as to make the temperature inside and outside of the material consistent and eliminate the temperature difference problem in the molding process; Temperature control module: Through the temperature control unit in the mold, based on the real-time feedback data from the sensor, the temperature of each area of ​​the mold is dynamically adjusted to control the flow state and filling effect of the material in the mold cavity, avoiding fluidity changes and surface defects caused by local temperature differences; Cooling module: Implement a phased cooling strategy and combine it with local cooling adjustment technology to gradually adjust the coolant flow rate and flow rate to evenly distribute the temperature inside and outside the mold and alleviate material stress and deformation caused by temperature differences; Wall thickness adaptive cooling module: Based on real-time monitoring of wall thickness and temperature data, the coolant flow rate is dynamically adjusted to match the cooling intensity of different areas with the structural requirements, avoiding quality problems caused by local cooling differences; Coolant recycling module: Through thermal data monitoring and flow path optimization, coolant recycling is achieved, and the use of coolant is dynamically adjusted to optimize cooling efficiency and reduce energy demand; Intelligent temperature control module: Based on the temperature history data and cooling curve, it adjusts the temperature state of the mold and cleans the coolant residue and molding materials in the mold to ensure smooth subsequent molding processing; Sensor and control module: Use multiple sensors to monitor the status of polyurethane elastomer materials in real time, and process data through the control module to generate heating adjustment parameters and temperature control output power to achieve precise control and automatic adjustment.

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