Magnesium alloy die cooling oil device

Abstract

The utility model discloses a magnesium alloy die cooling oil device which comprises an oil tank, a cooling device and a die, and the oil tank is communicated with a cooling flow channel of the die through a cooling pipeline; the cooling device comprises a heat exchanger, a refrigeration assembly and a cooling water system. One end of the oil inlet pipe is communicated with the oil tank, and the other end of the oil inlet pipe is communicated with the oil outlet pipe through the heat exchanger; one end of the oil return pipe is communicated with the oil outlet pipe through the refrigeration assembly, and the other end of the oil return pipe is communicated with the oil tank; the cooling water system is connected with the heat exchanger and the refrigeration assembly and used for providing cooling water for the heat exchanger and the refrigeration assembly. The device further comprises a pump body assembly, a valve control assembly and a temperature control assembly. The pump body assembly is used for pumping cooling oil of the oil tank to the mold and the cooling device. The oil-cooling multistage cooling structure design is adopted, the risk that magnesium alloy explodes when encountering water is eradicated, energy-saving constant-temperature control over the mold temperature is achieved, the cooling effect is good, and the mold machining stability is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of casting cooling technology, and in particular to a cooling oil device for magnesium alloy molds. Background Technology

[0002] Magnesium alloy die casting is a manufacturing process in which molten magnesium alloy is injected into a mold cavity under high pressure. Because magnesium alloy can achieve the same performance requirements as steel, while reducing the weight of steel by one-third, it is widely used in the automotive, aerospace, and electronics industries.

[0003] During the production process, magnesium metal is more reactive and can explode when it comes into contact with water. Therefore, traditional water cooling systems used in molds such as aluminum alloy molds cannot be used in magnesium alloy molds. Moreover, existing cooling systems have poor control, high energy consumption, and large temperature variations, resulting in high costs, low efficiency, and unreliable processing quality.

[0004] Therefore, by developing a magnesium alloy mold cooling oil device, which adopts a multi-stage oil cooling structure design, the risk of magnesium alloy exploding when it comes into contact with water is eliminated, energy-saving constant temperature control of the mold temperature is achieved, the cooling effect is excellent, and the stability of mold processing is guaranteed. Utility Model Content

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] A magnesium alloy mold cooling oil device includes an oil tank, a cooling device, and a mold, characterized in that,

[0007] The oil tank is connected to the cooling channel of the mold via a cooling pipe;

[0008] The cooling device includes a heat exchanger, a refrigeration component, and a cooling water system;

[0009] The heat exchanger is equipped with an oil inlet pipe and an oil outlet pipe. One end of the oil inlet pipe is connected to the oil tank, and the other end is connected to the oil outlet pipe through the heat exchanger.

[0010] The refrigeration component is equipped with an oil return pipe, one end of which is connected to the oil outlet pipe through the refrigeration component, and the other end is connected to the oil tank.

[0011] The cooling water system is connected to the heat exchanger and the refrigeration components, and is used to provide cooling water to the heat exchanger and the refrigeration components.

[0012] It also includes pump body components, valve control components, and temperature control components;

[0013] The pump assembly is used to pump the cooling oil from the oil tank to the mold and cooling device. The valve control assembly is used to control the opening and closing of the cooling pipe and the oil outlet pipe. The temperature control assembly is used to monitor the temperature of the cooling oil in the cooling pipe and the oil return pipe, as well as the temperature of the cooling water entering the heat exchanger and the refrigeration unit.

[0014] Preferably, the refrigeration assembly includes an evaporator, a compressor, a condenser, a gas pipe, and a liquid pipe;

[0015] The evaporator is connected to the condenser via a liquid pipe. A compressor is installed on the gas pipe, with one end connected to the condenser and the other end connected to the evaporator. The oil outlet pipe is connected to the oil return pipe via the evaporator. The condenser is connected to the cooling water system.

[0016] Preferably, the temperature control component includes a first temperature sensor and a second temperature sensor, the pump body component includes a first pump body, and the valve control component includes a first valve;

[0017] The cooling pipeline includes an oil inlet cooling pipe and an oil outlet cooling pipe. The oil inlet cooling pipe is provided with a first pump body, a first valve and a first temperature sensor in sequence towards the mold, and the oil outlet cooling pipe is provided with a second temperature sensor.

[0018] Preferably, the temperature control component further includes a third temperature sensor, the pump body component further includes a second pump body, and the valve control component further includes a second valve and a third valve;

[0019] The second valve and the second pump body are mounted on the oil inlet pipe.

[0020] The third temperature sensor and the third valve are located on the return oil pipe.

[0021] Preferably, the temperature control component further includes a fourth temperature sensor and a fifth temperature sensor, and the heat exchanger is provided with a first cooling water inlet pipe and a first cooling water outlet pipe connected to the cooling water system.

[0022] The fourth temperature sensor is installed in the first cooling water inlet pipe, and the fifth temperature sensor is installed in the first cooling water outlet pipe.

[0023] Preferably, the temperature control component further includes a sixth temperature sensor and a seventh temperature sensor, and the condenser of the cooling component is provided with a second cooling water inlet pipe and a second cooling water outlet pipe connected to the cooling water system.

[0024] The sixth temperature sensor is installed in the second cooling water inlet pipe, and the seventh temperature sensor is installed in the second cooling water outlet pipe.

[0025] Preferably, a water collection pipe is provided on the second cooling water outlet pipe, and a water collection tank is provided at the other end of the water collection pipe. The water collection tank is used to store the cooling water after heat absorption for use in other production processes.

[0026] Preferably, the cooling oil is a low-viscosity silicone oil.

[0027] Preferably, the valve in the valve control assembly is a solenoid valve.

[0028] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0029] 1. This utility model adopts an oil-cooled multi-stage cooling structure design, which eliminates the risk of magnesium alloy exploding when it comes into contact with water, achieves energy-saving constant temperature control of the mold temperature, has a good cooling effect, and ensures the stability of mold processing.

[0030] 2. Through the pump body assembly, valve control assembly and temperature control assembly, the temperature of the cooling oil in the oil tank can be precisely controlled and maintained within the set temperature range, thereby achieving constant temperature control of the mold temperature.

[0031] 3. The condenser and radiator share the same cooling water system for heat exchange, eliminating the need for additional heat dissipation devices and achieving efficient and energy-saving cooling of the cooling oil. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of this utility model;

[0033] The components include: oil tank 1, cooling device 2, mold 3, water collection tank 4, heat exchanger 21, refrigeration assembly 22, cooling water system 23, first pump body 51, second pump body 52, first valve 61, second valve 62, third valve 63, first temperature sensor 71, second temperature sensor 72, third temperature sensor 73, fourth temperature sensor 74, fifth temperature sensor 75, sixth temperature sensor 76, seventh temperature sensor 77, oil inlet pipe 10, oil outlet pipe 20, oil return pipe 30, first cooling water inlet pipe 40, first cooling water outlet pipe 50, second cooling water inlet pipe 60, second cooling water outlet pipe 70, water collection pipe 80, oil inlet cooling pipe 90, oil outlet cooling pipe 100, evaporator 221, compressor 222, condenser 223, gas pipe 224, and liquid pipe 225. Detailed Implementation

[0034] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0035] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," "up," "down," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0038] like Figure 1 As shown, a cooling oil device for a magnesium alloy mold 3 includes an oil tank 1, a cooling device 2, and a mold 3. The oil tank 1 is connected to the cooling flow channel of the mold 3 through a cooling pipe.

[0039] The cooling device 2 includes a heat exchanger 21, a refrigeration component 22, and a cooling water system 23;

[0040] The heat exchanger 21 is provided with an oil inlet pipe 10 and an oil outlet pipe 20. One end of the oil inlet pipe 10 is connected to the oil tank 1, and the other end is connected to the oil outlet pipe 20 through the heat exchanger 21.

[0041] The refrigeration component 22 is provided with an oil return pipe 30. One end of the oil return pipe 30 is connected to the oil outlet pipe 20 through the refrigeration component 22, and the other end is connected to the oil tank 1.

[0042] The cooling water system 23 is connected to the heat exchanger 21 and the refrigeration assembly 22, and the cooling water system 23 is used to provide cooling water to the heat exchanger 21 and the refrigeration assembly 22.

[0043] It also includes pump body components, valve control components, and temperature control components;

[0044] The pump assembly is used to pump the cooling oil from the oil tank 1 to the mold 3 and the cooling device 2. The valve control assembly is used to control the opening and closing of the cooling pipe and the oil outlet pipe 20. The temperature control assembly is used to monitor the temperature of the cooling oil in the cooling pipe and the return oil pipe 30, as well as the temperature of the cooling water entering the heat exchanger 21 and the refrigeration assembly 22.

[0045] In this embodiment, by using oil instead of water as the cooling medium, the risk of magnesium alloy exploding when it comes into contact with water is eliminated; at the same time, a two-stage cooling heat exchange structure design is adopted. First, the cooling oil in the oil tank 1 enters the heat exchanger 21 to exchange heat with the cooling water for primary cooling. After cooling, the cooling oil passes through the refrigeration component 22 for secondary cooling, thereby forming cooling oil with the required temperature that flows back to the oil tank 1. This continuously cools the cooling oil in the oil tank 1, keeping the temperature of the cooling oil stably maintained within the set temperature range.

[0046] Then, the cooling oil that meets the temperature requirements circulates continuously into the cooling channel of mold 3 through the cooling pipes, cooling mold 3 while achieving constant temperature control of mold 3.

[0047] In the above structure, under the condition of a certain total heat, the cooling oil is initially cooled by cooling water through the heat exchanger 21, which reduces the power required for cooling the refrigeration component 22, thereby reducing the volume of the refrigeration component 22, reducing the energy consumption required for refrigeration, and occupying a small area while being energy-efficient.

[0048] In this embodiment, the cooling water is tap water or cooling water prepared in the production workshop.

[0049] The temperature control component is electrically connected to the pump body component, valve control component, and refrigeration device.

[0050] Furthermore, such as Figure 1 As shown, the refrigeration assembly 22 includes an evaporator 221, a compressor 222, a condenser 223, a gas pipe 224, and a liquid pipe 225;

[0051] The evaporator 221 is connected to the condenser 223 via the liquid pipe 225. The compressor 222 is installed on the gas pipe 224, with one end connected to the condenser 223 and the other end connected to the evaporator 221. The oil outlet pipe 20 is connected to the oil return pipe 30 via the evaporator 221. The condenser 223 is connected to the cooling water system 23.

[0052] In this embodiment, the working principle of the refrigeration component 22 is as follows: the refrigerant flowing in the liquid pipe 225 and the gas pipe 224 is as follows: firstly, the low-pressure, liquid refrigerant enters the evaporator 221 and exchanges heat with the cooling oil after primary cooling. After absorbing heat, the low-pressure, liquid refrigerant forms a low-pressure gaseous state. Then, the low-temperature cooling oil continuously circulates into the oil tank 1 for cooling the mold 3. The low-pressure gaseous refrigerant forms a high-pressure gaseous state after passing through the compressor 222. The high-pressure gaseous refrigerant exchanges heat with the cooling water in the condenser 223 and forms a high-pressure liquid state. Then, the high-pressure liquid refrigerant forms a low-pressure gaseous state after pressure control and enters the evaporator 221, thereby continuously cooling the cooling oil.

[0053] In this embodiment, the condenser 223 and the radiator share the cooling water of the cooling water system 23 for heat exchange, eliminating the need for additional heat dissipation devices, resulting in low manufacturing costs and energy consumption, and achieving efficient and energy-saving cooling of the cooling oil.

[0054] In addition, due to the heat exchange structure design that prevents cooling water from directly contacting cooling oil, the risk of magnesium alloy exploding when it comes into contact with water is avoided by water mixed in the cooling oil.

[0055] Furthermore, such as Figure 1 As shown, the temperature control component includes a first temperature sensor 71 and a second temperature sensor 72, the pump body component includes a first pump body 51, and the valve control component includes a first valve 61.

[0056] The cooling pipeline includes an oil inlet cooling pipe 90 and an oil outlet cooling pipe 100. The oil inlet cooling pipe 90 is provided with a first pump body 51, a first valve 61 and a first temperature sensor 71 in sequence in the direction close to the mold 3. The oil outlet cooling pipe 100 is provided with a second temperature sensor 72.

[0057] In this embodiment, the temperature of the cooling oil entering the mold 3 is monitored by the first temperature sensor 71 to control the start and stop of the first pump body 51 and the opening and closing of the first valve 61. At the same time, the temperature of the cooling oil flowing from the mold 3 into the oil tank 1 is monitored by the second temperature sensor 72 to control the cooling device 2 to cool the cooling oil, thereby ensuring that the temperature of the cooling oil entering the mold 3 reaches the set temperature range and that the temperature of the cooling oil in the oil tank 1 is maintained within the set range; thus achieving precise and efficient control of the cooling oil.

[0058] Furthermore, such as Figure 1 As shown, the temperature control component also includes a third temperature sensor 73, the pump body component also includes a second pump body 52, and the valve control component also includes a second valve 62 and a third valve 63;

[0059] The second valve 62 and the second pump body 52 are mounted on the oil inlet pipe 10.

[0060] The third temperature sensor 73 and the third valve 63 are mounted on the oil return pipe 30.

[0061] In this embodiment, the second pump body 52 acts as a circulating pump, and together with the cooling device 2, it continuously cools the cooling oil in the oil tank 1. The temperature of the cooling oil in the return oil pipe 30 is monitored by the third temperature sensor 73 to control the refrigeration device. If the temperature is lower than the set value, the refrigeration device is controlled to stop or reduce the cooling power. If the temperature is higher than the set value, the refrigeration device is controlled to increase the cooling power, thereby achieving energy-saving variable frequency cooling of the cooling oil.

[0062] Furthermore, such as Figure 1As shown, in order to detect the temperature of the cooling water entering and exiting the heat exchanger 21 in real time and ensure the heat exchange effect of the heat exchanger 21, the temperature control component also includes a fourth temperature sensor 74 and a fifth temperature sensor 75. The heat exchanger 21 is provided with a first cooling water inlet pipe 40 and a first cooling water outlet pipe 50 connected to the cooling water system 23.

[0063] The fourth temperature sensor 74 is installed in the first cooling water inlet pipe 40, and the fifth temperature sensor 75 is installed in the first cooling water outlet pipe 50.

[0064] By monitoring the temperature of the cooling water entering and exiting the heat exchanger 21 in real time, the normal operation of the heat exchanger 21 can be ensured, and the flow rate of the cooling water can be controlled according to the temperature, thereby achieving efficient and energy-saving heat exchange of the heat exchanger 21.

[0065] Furthermore, such as Figure 1 As shown, in order to detect the temperature of the cooling water entering and exiting the condenser 223 in real time and ensure the heat exchange effect of the cooler, the temperature control component also includes a sixth temperature sensor 76 and a seventh temperature sensor 77. The condenser 223 of the cooling component is provided with a second cooling water inlet pipe 60 and a second cooling water outlet pipe 70 connected to the cooling water system 23.

[0066] The sixth temperature sensor 76 is installed in the second cooling water inlet pipe 60, and the seventh temperature sensor 77 is installed in the second cooling water outlet pipe 70.

[0067] By monitoring the temperature of the cooling water entering and exiting the cooler in real time, the normal operation of the cooler can be ensured, and the flow rate of the cooling water can be controlled according to the temperature, thereby achieving efficient and energy-saving heat exchange for the condenser 223.

[0068] Furthermore, such as Figure 1 As shown, in order to save water resources and recover heat energy, a water collection pipe 80 is provided on the second cooling water outlet pipe 70. A valve for controlling the on and off is provided on the water collection pipe 80. A water collection tank 4 is provided at the other end of the water collection pipe 80. The water collection tank 4 is used to store the cooling water after heat absorption for use in other production processes.

[0069] Furthermore, in order to improve the reliability and stability of cooling the magnesium alloy mold 3, the cooling oil is a low-viscosity silicone oil.

[0070] Furthermore, in order to improve the control sensitivity and stability of the on / off states of each pipeline, the valves in the valve control assembly are solenoid valves.

[0071] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model patent.

Claims

1. A magnesium alloy mold cooling oil device, comprising an oil tank, a cooling device, and a mold, characterized in that, The oil tank is connected to the cooling channel of the mold via a cooling pipe; The cooling device includes a heat exchanger, a refrigeration component, and a cooling water system; The heat exchanger is equipped with an oil inlet pipe and an oil outlet pipe. One end of the oil inlet pipe is connected to the oil tank, and the other end is connected to the oil outlet pipe through the heat exchanger. The refrigeration component is equipped with an oil return pipe, one end of which is connected to the oil outlet pipe through the refrigeration component, and the other end is connected to the oil tank. The cooling water system is connected to the heat exchanger and the refrigeration components, and is used to provide cooling water to the heat exchanger and the refrigeration components. It also includes pump body components, valve control components, and temperature control components; The pump assembly is used to pump the cooling oil from the oil tank to the mold and cooling device. The valve control assembly is used to control the opening and closing of the cooling pipe and the oil outlet pipe. The temperature control assembly is used to monitor the temperature of the cooling oil in the cooling pipe and the oil return pipe, as well as the temperature of the cooling water entering the heat exchanger and the refrigeration unit.

2. The magnesium alloy mold cooling oil device according to claim 1, characterized in that, The refrigeration components include an evaporator, a compressor, a condenser, a gas pipe, and a liquid pipe; The evaporator is connected to the condenser via a liquid pipe. A compressor is installed on the gas pipe, with one end connected to the condenser and the other end connected to the evaporator. The oil outlet pipe is connected to the oil return pipe via the evaporator. The condenser is connected to the cooling water system.

3. The magnesium alloy mold cooling oil device according to claim 1, characterized in that, The temperature control component includes a first temperature sensor and a second temperature sensor, the pump body component includes a first pump body, and the valve control component includes a first valve. The cooling pipeline includes an oil inlet cooling pipe and an oil outlet cooling pipe. The oil inlet cooling pipe is provided with a first pump body, a first valve and a first temperature sensor in sequence towards the mold, and the oil outlet cooling pipe is provided with a second temperature sensor.

4. The magnesium alloy mold cooling oil device according to claim 1, characterized in that, The temperature control component also includes a third temperature sensor, the pump body component also includes a second pump body, and the valve control component also includes a second valve and a third valve; The second valve and the second pump body are mounted on the oil inlet pipe. The third temperature sensor and the third valve are located on the return oil pipe.

5. A magnesium alloy mold cooling oil device according to claim 1, characterized in that, The temperature control component also includes a fourth temperature sensor and a fifth temperature sensor, and the heat exchanger is provided with a first cooling water inlet pipe and a first cooling water outlet pipe connected to the cooling water system. The fourth temperature sensor is installed in the first cooling water inlet pipe, and the fifth temperature sensor is installed in the first cooling water outlet pipe.

6. A magnesium alloy mold cooling oil device according to claim 1, characterized in that, The temperature control component also includes a sixth temperature sensor and a seventh temperature sensor, and the condenser of the cooling device is provided with a second cooling water inlet pipe and a second cooling water outlet pipe connected to the cooling water system. The sixth temperature sensor is installed in the second cooling water inlet pipe, and the seventh temperature sensor is installed in the second cooling water outlet pipe.

7. A magnesium alloy mold cooling oil device according to claim 6, characterized in that, A water collection pipe is provided on the second cooling water outlet pipe, and a water collection tank is provided at the other end of the water collection pipe. The water collection tank is used to store the cooling water after heat absorption for use in the production process.

8. A magnesium alloy mold cooling oil device according to claim 1, characterized in that, The cooling oil is a low-viscosity silicone oil.

9. A magnesium alloy mold cooling oil device according to claim 1, 3, or 4, characterized in that, The valve in the valve control assembly is a solenoid valve.

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