Constant temperature control system for foam forming and foam forming equipment

Abstract

The utility model provides a constant temperature control system for foam forming and foam forming equipment, and relates to the technical field of foam part production, the constant temperature control system for foam forming comprises a high temperature water tank, a low temperature water tank, a first temperature control assembly, a second temperature control assembly and a controller, water in the high-temperature water tank and the low-temperature water tank is mixed through a first water mixing valve, and a first temperature sensor is arranged to measure the water flow temperature in a first mixed flow output pipeline; the second temperature control assembly is used for carrying out constant temperature control on the mold, in the second temperature control assembly, water in the high-temperature water tank and the low-temperature water tank is mixed through a second water mixing valve, and a second temperature sensor is arranged to measure the water flow temperature in a second mixed flow output pipeline; the controller controls the water mixing proportion of the first water mixing valve according to the feedback of the first temperature sensor; water in the high-temperature water tank and the low-temperature water tank is mixed to control the outlet water temperature, and rapid temperature adjustment can be achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of foaming piece production, in particular to a constant temperature control system for foaming forming and a foaming forming device. BACKGROUND

[0002] Foaming is a common manufacturing process, which can be used for manufacturing foamed plastic products and can be applied to the packaging industry, the building field, the automobile industry, electronic appliances and the like. On an automobile or other vehicles, the foaming piece can be used as an interior decoration or other functional structure. In the foaming production process, temperature control is a key factor to ensure product quality. At present, the foaming production system controls the temperature of the mold and the tank through a mold temperature machine, so that the mold and the tank are kept at a corresponding temperature to ensure the quality of the foamed product. However, the method of using the mold temperature machine for constant temperature control in the current foaming production system has high energy consumption and slow temperature regulation speed. CONTENT OF THE UTILITY MODEL

[0003] The technical problem to be solved by the application is to solve the above-mentioned deficiencies of the prior art, and to provide a constant temperature control system for foaming forming and a foaming forming device.

[0004] A constant temperature control system for foaming forming, comprising:

[0005] A high-temperature water tank and a low-temperature water tank are provided; a connecting pipeline is arranged between the high-temperature water tank and the low-temperature water tank; one end of the connecting pipeline is connected to the top of the high-temperature water tank, and the other end is connected to the top of the low-temperature water tank;

[0006] A first temperature control assembly, comprising: a first water mixing valve, a first mixed flow output pipeline, a first mixed flow input pipeline, a second mixed flow input pipeline, a first backflow pipeline, and a first temperature sensor; wherein one end of the first mixed flow input pipeline is connected to the high-temperature water tank, and the other end is connected to a first water inlet of the first water mixing valve; one end of the second mixed flow input pipeline is connected to the low-temperature water tank, and the other end is connected to a second water inlet of the first water mixing valve; one end of the first mixed flow output pipeline is connected to a water outlet of the first water mixing valve, and the other end is used to be connected to a tank pipeline to input the mixed water flow output by the first water mixing valve into the tank pipeline; one end of the first backflow pipeline is connected to the low-temperature water tank, and the other end is used to be connected to the tank pipeline to transport the backflow water discharged from the tank pipeline to the low-temperature water tank; the first temperature sensor is used to measure the temperature of the water flow in the first mixed flow output pipeline;

[0007] A second temperature control assembly, comprising: a second water mixing valve, a second mixed water output pipeline, a third mixed water input pipeline, a fourth mixed water input pipeline, a second backflow pipeline, a second temperature sensor; wherein one end of the third mixed water input pipeline is connected to the high-temperature water tank, and the other end is connected to the first water inlet of the second water mixing valve; one end of the fourth mixed water input pipeline is connected to the low-temperature water tank, and the other end is connected to the second water inlet of the second water mixing valve; one end of the second mixed water output pipeline is connected to the water outlet of the second water mixing valve, and the other end is used to be connected to the mold pipeline to input the mixed water flow output by the second water mixing valve into the mold pipeline; one end of the second backflow pipeline is connected to the high-temperature water tank, and the other end is used to be connected to the mold pipeline to transport the backflow water discharged from the mold pipeline to the high-temperature water tank; the second temperature sensor is used to measure the water flow temperature in the second mixed water output pipeline;

[0008] A controller connected to the first water mixing valve and the first temperature sensor, capable of controlling the water mixing ratio of the first water mixing valve according to the feedback of the first temperature sensor; the controller is connected to the second water mixing valve and the second temperature sensor, capable of controlling the water mixing ratio of the second water mixing valve according to the feedback of the second temperature sensor.

[0009] Optionally, the first temperature control assembly further comprises a first temperature gauge; the first temperature gauge is arranged on the first mixed water output pipeline for measuring and displaying the water flow temperature in the first mixed water output pipeline;

[0010] The second temperature control assembly further comprises a second temperature gauge; the second temperature gauge is arranged on the second mixed water output pipeline for measuring and displaying the water flow temperature in the second mixed water output pipeline.

[0011] Optionally, the first temperature control assembly further comprises a first pressure gauge; the first pressure gauge is arranged on the first mixed water output pipeline for measuring and displaying the water flow pressure in the first mixed water output pipeline;

[0012] The second temperature control assembly further comprises a second pressure gauge; the second pressure gauge is arranged on the second mixed water output pipeline for measuring and displaying the water flow pressure in the second mixed water output pipeline.

[0013] Optionally, it further comprises: a water supplement pipeline; the water supplement pipeline is connected with the high-temperature water tank and the low-temperature water tank, and is connected to an external water source for supplementing water to the high-temperature water tank and the low-temperature water tank.

[0014] Optionally, the constant temperature control system for foaming molding further comprises a first temperature adjusting assembly; the first temperature adjusting assembly comprises a heater, a first temperature adjusting pipeline and a second temperature adjusting pipeline; the heater is used for heating water; the first temperature adjusting pipeline is connected with the high-temperature water tank and the heater, and is used for conveying water in the high-temperature water tank to the heater for heating; the second temperature adjusting pipeline is connected with the high-temperature water tank and the heater, and is used for conveying water after being heated by the heater back to the high-temperature water tank.

[0015] Optionally, the constant temperature control system for foaming molding further comprises a third temperature sensor; the third temperature sensor is arranged on the high-temperature water tank, and is used for measuring the water temperature of the high-temperature water tank; the third temperature sensor is connected with the controller, so that the controller can control the first temperature adjusting assembly according to the water temperature feedback of the high-temperature water tank.

[0016] Optionally, the constant temperature control system for foaming molding further comprises a second temperature adjusting assembly; the second temperature adjusting assembly comprises a cooler, a third temperature adjusting pipeline and a fourth temperature adjusting pipeline; the cooler is used for cooling water; the third temperature adjusting pipeline is connected with the low-temperature water tank and the cooler, and is used for conveying water in the low-temperature water tank to the cooler for cooling; the fourth temperature adjusting pipeline is connected with the low-temperature water tank and the cooler, and is used for conveying water after being cooled by the cooler back to the low-temperature water tank.

[0017] Optionally, the constant temperature control system for foaming molding further comprises a fourth temperature sensor; the fourth temperature sensor is arranged on the low-temperature water tank, and is used for measuring the water temperature of the low-temperature water tank; the fourth temperature sensor is connected with the controller, so that the controller can control the second temperature adjusting assembly according to the water temperature feedback of the low-temperature water tank.

[0018] Optionally, the heater is a wind-cooled module heater; and the cooler is a wind-cooled module refrigerator.

[0019] In another aspect, the application further provides a foaming molding device, which has any one of the constant temperature control systems for foaming molding.

[0020] In the application, the first temperature control assembly is used for constant temperature control of the material tank, in the first temperature control assembly, the water in the high-temperature water tank and the low-temperature water tank is mixed through the first water mixing valve, and the first temperature sensor is arranged to measure the water flow temperature in the first mixed flow output pipeline; the second temperature control assembly is used for constant temperature control of the mold, in the second temperature control assembly, the water in the high-temperature water tank and the low-temperature water tank is mixed through the second water mixing valve, and the second temperature sensor is arranged to measure the water flow temperature in the second mixed flow output pipeline; the controller controls the water mixing ratio of the first water mixing valve according to the feedback of the first temperature sensor; the controller is connected to the second water mixing valve and the second temperature sensor, and can control the water mixing ratio of the second water mixing valve according to the feedback of the second temperature sensor. In the above scheme, on the one hand, the water temperature control can be realized by mixing the water in the high-temperature water tank and the low-temperature water tank, and the temperature can be quickly adjusted. On the other hand, the connecting pipeline between the high-temperature water tank and the low-temperature water tank can be used to transfer heat between the high-temperature water tank and the low-temperature water tank, so that the heat can be more efficiently utilized, and the energy consumption is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 FIG. 1 is a structure schematic diagram of a constant temperature control system for foaming molding in the embodiment of the application.

[0022] Fig. 2 FIG. 2 is another structure schematic diagram of a constant temperature control system for foaming molding in the embodiment of the application.

[0023] Fig. 3 FIG. 3 is another structure schematic diagram of a constant temperature control system for foaming molding in the embodiment of the application.

[0024] FIG. 1 is a structure schematic diagram of a constant temperature control system for foaming molding in the embodiment of the application. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present application and further describe the technical solutions of the present application in conjunction with the drawings, but the present application is not limited to these embodiments. In the following description, specific details such as specific configurations and components are provided only to help a comprehensive understanding of the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope of protection of the present application. In addition, in order to be clear and concise, the description of known functions and structures is omitted.

[0026] It should be noted that the embodiments and features in the present application can be combined with each other without conflict.

[0027] The present application provides a constant temperature control system for foaming molding, which is used for constant temperature control of mold temperature and material tank in a foaming system. In an illustrative foaming system, the constant temperature control system is used for constant temperature treatment of molds on 6 stations and 3 material tanks, and requires that when working, the mold temperature is maintained at 40℃ in winter and 45℃ in summer, and the material tank temperature is maintained at 25℃, and the temperature control accuracy is ±1.5℃.

[0028] Figs. 1-3 A constant temperature control system for foaming molding is shown, which includes a high-temperature water tank 10 and a low-temperature water tank 20, a first temperature control component 30, a second temperature control component 40, and a controller 90.

[0029] Among them, the connection pipeline 50 is arranged between the high-temperature water tank 10 and the low-temperature water tank 20; one end of the connection pipeline 50 is connected to the top of the high-temperature water tank 10, and the other end is connected to the top of the low-temperature water tank 20.

[0030] The first temperature control component 30 includes a first water mixing valve 31, a first mixed flow output pipeline 32, a first mixed flow input pipeline 33, a second mixed flow input pipeline 34, a first return pipeline 35, and a first temperature sensor 36; wherein one end of the first mixed flow input pipeline 33 is connected to the high-temperature water tank 10, and the other end is connected to the first water inlet of the first water mixing valve 31; one end of the second mixed flow input pipeline 34 is connected to the low-temperature water tank 20, and the other end is connected to the second water inlet of the first water mixing valve 31; one end of the first mixed flow output pipeline 32 is connected to the water outlet of the first water mixing valve 31, and the other end is used to be connected to the material tank pipeline to input the mixed water flow output by the first water mixing valve 31 into the material tank pipeline; one end of the first return pipeline 35 is connected to the low-temperature water tank 20, and the other end is used to be connected to the material tank pipeline to transport the return flow discharged from the material tank pipeline to the low-temperature water tank 20; the first temperature sensor 36 is used to measure the water flow temperature in the first mixed flow output pipeline 32.

[0031] The second temperature control assembly 40 comprises a second water mixing valve 41, a second mixed water output pipeline 42, a third mixed water input pipeline 43, a fourth mixed water input pipeline 44, a second backflow pipeline 45, and a second temperature sensor 46. The third mixed water input pipeline 43 is connected to the high-temperature water tank 10 at one end and connected to the first water inlet of the second water mixing valve 41 at the other end. The fourth mixed water input pipeline 44 is connected to the low-temperature water tank 20 at one end and connected to the second water inlet of the second water mixing valve 41 at the other end. The second mixed water output pipeline 42 is connected to the water outlet of the second water mixing valve 41 at one end and used to connect to the mold pipeline to input the mixed water flow output by the second water mixing valve 41 into the mold pipeline at the other end. The second backflow pipeline 45 is connected to the high-temperature water tank 10 at one end and used to connect to the mold pipeline to transport the backflow water discharged from the mold pipeline to the high-temperature water tank 10 at the other end. The second temperature sensor 46 is used to measure the temperature of the water flow in the second mixed water output pipeline 42.

[0032] The controller 90 is connected to the first water mixing valve 31 and the first temperature sensor 36 and can control the water mixing ratio of the first water mixing valve 31 according to the feedback of the first temperature sensor 36. The controller 90 is connected to the second water mixing valve 41 and the second temperature sensor 46 and can control the water mixing ratio of the second water mixing valve 41 according to the feedback of the second temperature sensor 46.

[0033] In an example, when the foaming system works in winter, the mold temperature needs to be kept at 40°C, the material tank temperature needs to be kept at 25°C, the water temperature of the high-temperature water tank 10 is set to 45°C, and the water temperature of the low-temperature water tank is set to 23°C. When working, the first temperature control assembly 30 is used for controlling the material tank temperature, and the second temperature control assembly 40 is used for controlling the mold temperature.

[0034] When the foaming system works in winter, in the process of controlling the material tank temperature by the first temperature control assembly 30, the water in the high-temperature water tank 10 reaches the first water mixing valve 31 through the first mixed water input pipeline 33, the water in the low-temperature water tank 20 reaches the first water mixing valve 31 through the second mixed water input pipeline 34, and the two water flows enter the first mixed water output pipeline 32 after converging at the first water mixing valve 31. The first mixed water output pipeline 32 inputs the mixed water flow output by the first water mixing valve 31 into the material tank pipeline, and the backflow water of the material tank pipeline returns to the low-temperature water tank 20 through the first backflow pipeline 35. When the material tank temperature reaches the set value (for example, 23°C), the controller 90 controls the first water mixing valve 31 to close the high-temperature water tank water flow input from the first mixed water input pipeline 33. In this process, the backflow water returns to the low-temperature water tank 20 through the first backflow pipeline 35, and if the low-temperature water in the low-temperature water tank 20 overflows to the high-temperature water tank 10, the high-temperature water tank 10 can be heated to maintain the temperature.

[0035] When the foaming system works in winter, in the process of the second temperature control assembly 40 controlling the mold temperature, the water in the high-temperature water tank 10 reaches the second water mixing valve 41 through the third mixed flow input pipeline 43, the water in the low-temperature water tank 20 reaches the second water mixing valve 41 through the fourth mixed flow input pipeline 44, and the two water flows reach the second mixed flow output pipeline 42 after being mixed in the second water mixing valve 41. The second mixed flow output pipeline 42 inputs the mixed water flow output by the second water mixing valve 41 into the mold pipeline, and the backflow water of the mold pipeline returns to the high-temperature water tank 10 through the second backflow pipeline 45; when the mold temperature is too high, the controller 90 controls the second water mixing valve 41 to mix the low-temperature water tank water flow input from the fourth mixed flow input pipeline 44; when the mold temperature drops to 40°C, the controller 90 controls the second water mixing valve 41 to close the low-temperature water tank water flow input from the fourth mixed flow input pipeline 44. In this process, the backflow water returns to the high-temperature water tank 10 through the second backflow pipeline 45, and if the high-temperature water in the high-temperature water tank 10 overflows to the low-temperature water tank 20, the low-temperature water tank 20 can be cooled to maintain the temperature.

[0036] In an example, when the foaming system works in summer, the mold temperature needs to be kept at 45°C, the tank temperature needs to be kept at 25°C, and the water temperature of the high-temperature water tank 10 is set to 45°C, and the water temperature of the low-temperature water tank is set to 23°C. When working, the first temperature control assembly 30 is used for controlling the tank temperature, and the second temperature control assembly 40 is used for controlling the mold temperature.

[0037] When the foaming system works in summer, in the process of the first temperature control assembly 30 controlling the tank temperature, the water in the high-temperature water tank 10 reaches the first water mixing valve 31 through the first mixed flow input pipeline 33, the water in the low-temperature water tank 20 reaches the first water mixing valve 31 through the second mixed flow input pipeline 34, and the two water flows reach the first mixed flow output pipeline 32 after being mixed in the first water mixing valve 31. The first mixed flow output pipeline 32 inputs the mixed water flow output by the first water mixing valve 31 into the tank pipeline, and the backflow water of the tank pipeline returns to the low-temperature water tank 20 through the first backflow pipeline 35; when the tank temperature reaches the set value (for example, 23°C), the controller 90 controls the first water mixing valve 31 to close the high-temperature water tank water flow input from the first mixed flow input pipeline 33. In this process, the backflow water returns to the low-temperature water tank 20 through the first backflow pipeline 35, and if the low-temperature water in the low-temperature water tank 20 overflows to the high-temperature water tank 10, the high-temperature water tank 10 can be heated to maintain the temperature.

[0038] When the foaming system works in summer, in the process of controlling the mold temperature by the second temperature control assembly 40, the water in the high-temperature water tank 10 reaches the second water mixing valve 41 through the third mixed water input pipeline 43, and the water in the low-temperature water tank 20 reaches the second water mixing valve 41 through the fourth mixed water input pipeline 44, and the two water flows reach the second mixed water output pipeline 42 after being mixed in the second water mixing valve 41, and the second mixed water output pipeline 42 inputs the mixed water flow output by the second water mixing valve 41 into the mold pipeline, and the backflow water of the mold pipeline reaches the high-temperature water tank 10 through the second backflow pipeline 45; when the mold temperature is too high, the controller 90 controls the second water mixing valve 41 to mix the low-temperature water tank water flow input from the fourth mixed water input pipeline 44; when the mold temperature drops to 45℃, the controller 90 controls the second water mixing valve 41 to close the low-temperature water tank water flow input from the fourth mixed water input pipeline 44. In this process, the backflow water reaches the high-temperature water tank 10 through the second backflow pipeline 45, and if the high-temperature water in the high-temperature water tank 10 overflows to the low-temperature water tank 20, the low-temperature water tank 20 can be cooled to maintain the temperature.

[0039] In addition, in the working process of the above-mentioned constant temperature control system, if the high-temperature water in the high-temperature water tank 10 overflows to the low-temperature water tank 20, the low-temperature water tank 20 can be cooled to maintain the temperature; if the low-temperature water in the low-temperature water tank 20 overflows to the high-temperature water tank 10, the high-temperature water tank 10 can be heated to maintain the temperature.

[0040] In the embodiment of the present application, the constant temperature control system for foaming molding further comprises a first temperature adjusting assembly 70; the first temperature adjusting assembly 70 comprises a heater 71, a first temperature adjusting pipeline 72, and a second temperature adjusting pipeline 73; the heater 71 is used for heating water; the first temperature adjusting pipeline 72 connects the high-temperature water tank 10 and the heater 71, and is used for conveying the water in the high-temperature water tank 10 to the heater 71 for heating; the second temperature adjusting pipeline 73 connects the high-temperature water tank 10 and the heater 71, and is used for conveying the water heated by the heater 71 back to the high-temperature water tank 10.

[0041] Further, the constant temperature control system for foaming molding further comprises a third temperature sensor 11; the third temperature sensor 11 is arranged on the high-temperature water tank 10, and is used for measuring the water temperature of the high-temperature water tank 10; the third temperature sensor 11 is connected with the controller 90, so that the controller 90 can control the first temperature adjusting assembly 70 according to the water temperature feedback of the high-temperature water tank 10.

[0042] When the first temperature adjusting assembly 70 is used to heat the high-temperature water tank 10, the water in the high-temperature water tank 10 is conveyed to the heater 71 through the first temperature adjusting pipeline 72, and is backflowed to the high-temperature water tank 10 through the second temperature adjusting pipeline 73 after the heating process. In this process, the controller 90 can control the heating process of the first temperature adjusting assembly 70 according to the measurement data of the third temperature sensor 11, so that the water temperature of the high-temperature water tank 10 is maintained at a set level.

[0043] In the embodiment of the present application, the constant temperature control system for foaming molding further comprises a second temperature adjusting assembly 80; the second temperature adjusting assembly 80 comprises a cooler 81, a third temperature adjusting pipeline 82 and a fourth temperature adjusting pipeline 83; the cooler 81 is used for cooling water; the third temperature adjusting pipeline 82 is connected with the low-temperature water tank 20 and the cooler 81, and is used for conveying water in the low-temperature water tank 20 to the cooler 81 for cooling; the fourth temperature adjusting pipeline 83 is connected with the low-temperature water tank 20 and the cooler 81, and is used for conveying water cooled by the cooler 81 back to the low-temperature water tank 20.

[0044] Further, the constant temperature control system for foaming molding further comprises a fourth temperature sensor 21; the fourth temperature sensor 21 is arranged on the low-temperature water tank 20, and is used for measuring the water temperature of the low-temperature water tank 20; the fourth temperature sensor 21 is connected with the controller 90, so that the controller 90 can control the second temperature adjusting assembly 80 according to the water temperature feedback of the low-temperature water tank 20.

[0045] When the second temperature adjusting assembly 80 is used to cool the low-temperature water tank 20, the water in the low-temperature water tank 20 is conveyed to the cooler 81 through the third temperature adjusting pipeline 82, and is returned to the low-temperature water tank 20 through the fourth temperature adjusting pipeline 83 after cooling. In this process, the controller 90 can control the cooling process of the second temperature adjusting assembly 80 according to the measurement data of the fourth temperature sensor 21, so that the water temperature of the low-temperature water tank 20 is kept at a set level.

[0046] In addition, the heater 71 is a wind-cooled module heating machine; the cooler 81 is a wind-cooled module refrigeration machine. Similar to air conditioning heating, the wind-cooled module heating machine uses components such as a compressor, a condenser, an expansion valve and an evaporator to absorb low-temperature heat energy from air through the reverse Carnot principle, and convert it into high-temperature heat energy, thereby heating the water in the water tank. Similar to the principle of air conditioning, the wind-cooled module heating machine absorbs a large amount of low-temperature heat energy from air through the reverse Carnot principle, and converts it into high-temperature heat energy through compression of the compressor, and then transfers it to the constant temperature water tank to heat the water. Compared with ordinary heaters, the wind-cooled module heating machine has high heating efficiency and saves energy. Similar to air conditioning refrigeration, the wind-cooled module refrigeration machine mainly consists of a compressor, a condenser, an evaporator and an expansion valve. The compressor compresses the refrigerant to make it evaporate at high temperature, absorbs the heat of the cooled object, and reduces the temperature of the cooled object. The condenser cools the evaporated refrigerant to make it into a liquid and release heat, and then the fan discharges the heat; the refrigerant circulates between the evaporator and the expansion valve, and continuously absorbs heat to cool the water or other cooled objects in the water chiller.

[0047] In an embodiment of the present application, the first temperature control assembly 30 further comprises a first temperature gauge; the first temperature gauge is arranged on the first mixed flow output pipeline 32 to measure and display the water flow temperature in the first mixed flow output pipeline 32; the second temperature control assembly 40 further comprises a second temperature gauge; the second temperature gauge is arranged on the second mixed flow output pipeline 42 to measure and display the water flow temperature in the second mixed flow output pipeline 42. The first temperature gauge and the second temperature gauge can be used to display the pipeline temperature in real time, which is convenient for maintenance personnel to observe.

[0048] In an embodiment of the present application, the first temperature control assembly 30 further comprises a first pressure gauge; the first pressure gauge is arranged on the first mixed flow output pipeline 32 to measure and display the water flow pressure in the first mixed flow output pipeline 32; the second temperature control assembly 40 further comprises a second pressure gauge; the second pressure gauge is arranged on the second mixed flow output pipeline 42 to measure and display the water flow pressure in the second mixed flow output pipeline 42. The first pressure gauge and the second pressure gauge can be used to display the pipeline pressure in real time, which is convenient for maintenance personnel to observe.

[0049] The constant temperature control system further comprises a water supplement pipeline 60; the water supplement pipeline 60 is connected to the high-temperature water tank 10 and the low-temperature water tank 20 and connected to an external water source to supplement water to the high-temperature water tank 10 and the low-temperature water tank.

[0050] In addition, the present application also provides a foaming molding equipment, which has the constant temperature control system for foaming molding provided in the foregoing part. The constant temperature control system is used to control the temperature of the mold and the material tank in the foaming molding equipment.

[0051] Based on the constant temperature control system for foaming molding, the first temperature control assembly is used to control the temperature of the material tank. In the first temperature control assembly, the water in the high-temperature water tank and the low-temperature water tank is mixed by the first water mixing valve, and the first temperature sensor is arranged to measure the water flow temperature in the first mixed flow output pipeline; the second temperature control assembly is used to control the temperature of the mold. In the second temperature control assembly, the water in the high-temperature water tank and the low-temperature water tank is mixed by the second water mixing valve, and the second temperature sensor is arranged to measure the water flow temperature in the second mixed flow output pipeline; the controller is connected to the second water mixing valve and the second temperature sensor and can control the water mixing ratio of the second water mixing valve according to the feedback of the second temperature sensor. In the above scheme, on the one hand, the water temperature can be controlled by mixing the water in the high-temperature water tank and the low-temperature water tank, and the temperature can be quickly adjusted. On the other hand, the connecting pipeline arranged between the high-temperature water tank and the low-temperature water tank can be used to transfer heat between the high-temperature water tank and the low-temperature water tank, so that the heat can be more efficiently utilized, and the energy consumption can be reduced.

[0052] In the above-described embodiments of the present application, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be seen in the relevant description of other embodiments.

[0053] Furthermore, the terms "first", "second", etc. are used herein only to describe various embodiments and do not imply or connote relative importance or a number of indicated technical features. Thus, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise explicitly and specifically limited. It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0054] The specific embodiments described herein merely exemplify the technical solutions of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without departing from the scope defined by the claims of the present application.

Claims

1. A constant temperature control system for foam molding, characterized in that, The system comprises: a high-temperature water tank and a low-temperature water tank, a connecting pipeline being arranged between the high-temperature water tank and the low-temperature water tank; one end of the connecting pipeline is connected to the top of the high-temperature water tank, and the other end is connected to the top of the low-temperature water tank; a first temperature control assembly, comprising: a first water mixing valve, a first mixed water output pipeline, a first mixed water input pipeline, a second mixed water input pipeline, a first backflow pipeline, and a first temperature sensor; one end of the first mixed water input pipeline is connected to the high-temperature water tank, and the other end is connected to a first water inlet of the first water mixing valve; one end of the second mixed water input pipeline is connected to the low-temperature water tank, and the other end is connected to a second water inlet of the first water mixing valve; one end of the first mixed water output pipeline is connected to a water outlet of the first water mixing valve, and the other end is used to be connected to a tank pipeline to input mixed water flow output by the first water mixing valve into the tank pipeline; one end of the first backflow pipeline is connected to the low-temperature water tank, and the other end is used to be connected to the tank pipeline to transport backflow water discharged from the tank pipeline to the low-temperature water tank; the first temperature sensor is used to measure the temperature of water flow in the first mixed water output pipeline; a second temperature control assembly, comprising: a second water mixing valve, a second mixed water output pipeline, a third mixed water input pipeline, a fourth mixed water input pipeline, a second backflow pipeline, and a second temperature sensor; one end of the third mixed water input pipeline is connected to the high-temperature water tank, and the other end is connected to a first water inlet of the second water mixing valve; one end of the fourth mixed water input pipeline is connected to the low-temperature water tank, and the other end is connected to a second water inlet of the second water mixing valve; one end of the second mixed water output pipeline is connected to a water outlet of the second water mixing valve, and the other end is used to be connected to a mold pipeline to input mixed water flow output by the second water mixing valve into the mold pipeline; one end of the second backflow pipeline is connected to the high-temperature water tank, and the other end is used to be connected to the mold pipeline to transport backflow water discharged from the mold pipeline to the high-temperature water tank; the second temperature sensor is used to measure the temperature of water flow in the second mixed water output pipeline; a controller, the controller is connected to the first water mixing valve and the first temperature sensor, and can control the water mixing ratio of the first water mixing valve according to the feedback of the first temperature sensor; the controller is connected to the second water mixing valve and the second temperature sensor, and can control the water mixing ratio of the second water mixing valve according to the feedback of the second temperature sensor.

2. The constant temperature control system for foaming molding according to claim 1, wherein the first temperature control assembly further comprises a first temperature gauge; the first temperature gauge is arranged on the first mixed water output pipeline to measure and display the temperature of water flow in the first mixed water output pipeline; the second temperature control assembly further comprises a second temperature gauge; the second temperature gauge is arranged on the second mixed water output pipeline to measure and display the temperature of water flow in the second mixed water output pipeline.

3. The constant temperature control system for foaming molding according to claim 1, wherein the first temperature control assembly further comprises a first pressure gauge; the first pressure gauge is arranged on the first mixed water output pipeline to measure and display the pressure of water flow in the first mixed water output pipeline. The second temperature control assembly further comprises a second pressure gauge; the second pressure gauge is arranged on the second mixed flow output pipeline to measure and display the water flow pressure in the second mixed flow output pipeline.

4. The constant temperature control system for foam molding according to claim 1, wherein Further comprising: a water supplement pipeline; The water supplement pipeline is connected with the high-temperature water tank and the low-temperature water tank, and is connected to an external water source to supplement water to the high-temperature water tank and the low-temperature water tank.

5. The constant temperature control system for foam molding according to claim 1, wherein The constant temperature control system for foaming molding further comprises a first temperature control assembly; the first temperature control assembly comprises a heater, a first temperature control pipeline and a second temperature control pipeline; the heater is used for heating water; the first temperature control pipeline connects the high-temperature water tank and the heater, and is used for conveying water in the high-temperature water tank to the heater for heating; the second temperature control pipeline connects the high-temperature water tank and the heater, and is used for conveying water after being heated by the heater back to the high-temperature water tank.

6. The constant temperature control system for foam molding according to claim 5, wherein The constant temperature control system for foaming molding further comprises a third temperature sensor; the third temperature sensor is arranged on the high-temperature water tank to measure the water temperature of the high-temperature water tank; the third temperature sensor is connected with the controller, so that the controller can control the first temperature control assembly according to the water temperature feedback of the high-temperature water tank.

7. The thermostatic control system for foam molding according to claim 5 or 6, wherein Further comprising: a second temperature control assembly; The second temperature control assembly comprises a cooler, a third temperature control pipeline and a fourth temperature control pipeline; The cooler is used for cooling water; the third temperature control pipeline connects the low-temperature water tank and the cooler, and is used for conveying water in the low-temperature water tank to the cooler for cooling; the fourth temperature control pipeline connects the low-temperature water tank and the cooler, and is used for conveying water after being cooled by the cooler back to the low-temperature water tank.

8. The constant temperature control system for foam molding according to claim 7, wherein The constant temperature control system for foaming molding further comprises a fourth temperature sensor; the fourth temperature sensor is arranged on the low-temperature water tank to measure the water temperature of the low-temperature water tank; the fourth temperature sensor is connected with the controller, so that the controller can control the second temperature control assembly according to the water temperature feedback of the low-temperature water tank.

9. The constant temperature control system for foam molding according to claim 7, wherein The heater is a wind-cooled module heater; the cooler is a wind-cooled module refrigerator.

10. A foam molding apparatus characterized by comprising: The foaming molding equipment has the constant temperature control system for foaming molding according to any one of claims 1-9.

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