A metal semi-solid pulping cooling device and pulping equipment

Abstract

The present invention relates to a metal semi-solid pulping cooling device and pulping equipment, including a rotating mechanism, two or more stirring mechanisms, a spoon, a cooling mechanism, a heat dissipation mechanism and a controller. The technical solution of the present application sets a stirring and quenching rod with a solid structure and uses a low-temperature metal alloy in a molten state as the heat transfer medium of the stirring and quenching rod that needs to be cooled, and utilizes the high thermal conductivity and high boiling point of the low-temperature metal alloy to quickly and reliably reduce the stirring and quenching rod to the initial temperature. The stirring and quenching rod can have a lower initial temperature and have a better heat transfer effect on the high-temperature metal liquid, which helps to improve the pulping quality and shorten the pulping time to increase production capacity. Compared with the prior art, the heat dissipation mechanism of the coolant and the rotating mechanism are separately set, which does not affect the life of the rotating mechanism, and even if the circulating pump is abnormal, it is not easily affected by the temperature to cause the risk of boiling and cracking of the stirring rod.

Description

Technical Field

[0001] The invention relates to the field of metal semi-solid pulping, and in particular to a metal semi-solid pulping cooling device and pulping equipment. Background Art

[0002] Semi-solid metal forming refers to a metal forming method that utilizes the semi-solid zone during the two-phase transition from solid to liquid or from liquid to solid. It is a metal forming method with good rheological properties. Semi-solid rheological forming is to strongly stir the molten metal during the cooling process from liquid phase to solid phase, and directly send the semi-solid metal slurry to the forming equipment for forming at a certain solid phase fraction. Strong stirring and rapid cooling can cause rapid and large-scale nucleation inside the metal alloy liquid and inhibit the formation or growth of dendrites, forming high-quality semi-solid structure.

[0003] The announcement number is CN114273632B, and the invention name is a patent for a liquid-cooled semi-solid slurrying process for aluminum alloys. By setting a coolant in the stirring shaft to cool down, the formation of dendrites is promoted. The formed dendrites are broken up by the stirring shaft and evenly dispersed, which greatly improves the slurrying efficiency of the aluminum alloy melt. Although stirring and rapid cooling can be achieved in theory, in practice, it is difficult to pass coolant through a rotating mechanism at high temperatures, and the coolant is prone to leaking during rotation, affecting the life of the rotating mechanism. In addition, when the delivery pump is abnormal, the stirring rod and the internal coolant will heat up to 300 to 400 degrees, and there is also a risk of boiling and cracking of the stirring rod. Summary of the invention

[0004] To this end, it is necessary to provide a metal semi-solid pulping cooling device and pulping equipment to solve the technical problems that it is difficult to pass coolant through the rotating mechanism and use it at high temperature, and the coolant is easy to leak during rotation, affecting the life of the rotating mechanism; and when the delivery pump is abnormal, the stirring rod and the internal coolant rise to 300 to 400 degrees, and there is a risk of boiling and cracking of the stirring rod.

[0005] To achieve the above-mentioned objectives, in a first aspect, the present invention provides a metal semi-solid pulping cooling device, comprising a rotating mechanism, two or more stirring mechanisms, a soup spoon, a cooling mechanism, a heat dissipation mechanism and a controller; the rotating mechanism comprises a fixed bracket, a rotating motor, a rotating bracket and two or more lifting platforms, the fixed bracket is equipped with a rotating motor, the rotating motor is equipped with a rotating bracket, the rotating motor is used to drive the rotating bracket to rotate 360°, the rotating bracket comprises two or more rotating arms, each rotating arm is equipped with a lifting platform; each lifting platform is equipped with a stirring mechanism, the stirring mechanism comprises a stirring motor, a stirring chilling rod and a chilling rod temperature measuring rod, the stirring motor is installed on the lifting platform, the output end of the stirring motor is connected to the stirring chilling rod, the stirring chilling rod is solid inside, the chilling rod temperature measuring rod is connected to the stirring chilling rod, and is used to monitor the temperature of the stirring chilling rod in real time; the soup spoon is located directly below one of the stirring mechanisms, and the soup spoon is used to hold high-temperature molten metal; the cooling mechanism is located directly below the other stirring mechanism, and the cooling mechanism comprises a double-layer protective A temperature barrel, a low-temperature metal alloy, a cooling tube, a heating tube and a molten metal temperature measuring rod. The low-temperature metal alloy is installed in the double-layer insulation barrel. The cooling tube, the heating tube and the molten metal temperature measuring rod are installed in the low-temperature metal alloy. The cooling tube is located between the heating tube and the inner wall of the double-layer insulation barrel. The inner diameter of the heating tube is larger than the outer diameter of the stirring and quenching rod. The heating tube is used to heat the low-temperature metal alloy according to the temperature monitored by the molten metal temperature measuring rod to make the low-temperature metal alloy in a molten state; the heat dissipation mechanism includes a coolant pipeline, a coolant tank, a circulation pump and a liquid-cooled radiator. The inlet of the cooling tube is connected to the outlet of the cooling tube through the coolant pipeline. The coolant tank, the circulation pump and the liquid-cooled radiator are all installed on the coolant pipeline. The circulation pump is located between the coolant tank and the inlet of the cooling tube. The liquid-cooled radiator is located between the coolant tank and the outlet of the cooling tube. The liquid-cooled radiator is used to cool the coolant flowing out of the cooling tube and return it to the cooling tube through the circulation pump; the controller is respectively communicated with the rotating mechanism, more than two stirring mechanisms, the cooling mechanism and the heat dissipation mechanism.

[0006] Preferably, the heat dissipation mechanism also includes a liquid cooling temperature sensor and a flow regulating valve, which are installed on the coolant pipeline. The liquid cooling temperature sensor is located between the outlet of the liquid cooling radiator and the cooling pipe, and the flow regulating valve is located between the circulation pump and the inlet of the cooling pipe. The controller is also respectively communicated with the liquid cooling temperature sensor and the flow regulating valve. The controller is used to control the flow regulating valve to adjust the flow rate and control the fan air volume on the liquid cooling radiator according to the coolant temperature monitored in real time by the liquid cooling temperature sensor.

[0007] Preferably, three stirring mechanisms are provided, and two cooling mechanisms and heat dissipation mechanisms are provided; one stirring mechanism is used to cooperate with the soup spoon, and the other two stirring mechanisms correspond to two cooling mechanisms, and the two cooling mechanisms correspond to two heat dissipation mechanisms.

[0008] Preferably, the stirring mechanism further comprises a protective gas releaser, the top of the protective gas releaser is installed on the lifting platform, and the bottom of the protective gas releaser is sleeved outside the stirring and quenching rod.

[0009] Preferably, the stirring mechanism also includes more than two thermal sensors, a thermal sensor is installed at the bottom of each rotating arm, the sensing end of the thermal sensor is aimed downward, and the controller is also communicated with the thermal sensor. The controller is used to monitor the internal temperature of the soup spoon in real time according to the thermal sensor to determine whether high-temperature alloy liquid is placed in the soup spoon, so as to control the descent of the lifting platform, open the protective gas releaser and operate the stirring motor.

[0010] Preferably, the controller is also used to monitor the internal temperature of the spoon in real time according to the thermal sensor to determine whether the high-temperature alloy liquid in the spoon is made into a semi-solid slurry, so as to control the lifting platform to rise, the protective gas releaser to close, and the stirring motor to close.

[0011] Preferably, two molten metal temperature measuring rods are provided, one of which is located between the inner wall of the insulation barrel and the cooling tube, and the other is located between the cooling tube and the heating tube.

[0012] Preferably, the cooling tube and the heating tube are spiral-shaped.

[0013] Preferably, the method further comprises the following steps:

[0014] S101: The controller monitors the temperature of the low-temperature metal alloy in real time according to the metal liquid temperature measuring rod to ensure that the low-temperature metal alloy is in a molten state and reaches the set temperature;

[0015] S102: The controller monitors the temperature of the stirring chilling rod in real time according to the chilling rod temperature measuring rod to determine whether the stirring chilling rod has reached the initial temperature. If the stirring chilling rod has not reached the initial temperature, the controller controls the rotating motor to operate so that the stirring chilling rod is located directly above the cooling mechanism.

[0016] S103: The controller controls the lifting platform to descend, and the stirring quenching rod descends and extends into the low-temperature metal alloy. At the same time, the controller controls the liquid cooling radiator to work to take away the heat of the low-temperature metal alloy. The cooling liquid after absorbing heat flows to the liquid cooling radiator and releases the heat to the outside through the fan. The cooling liquid after releasing heat flows back to the cooling liquid tank through the circulation pump for use, so as to ensure that the low-temperature metal alloy is in a molten state and reaches the set temperature.

[0017] S104: When the stirring and quenching rod reaches the initial temperature, the controller controls the lifting platform to rise to the initial position;

[0018] S105: The controller controls the rotating motor to work so that the stirring and quenching rod that has reached the initial temperature is located at the processing station;

[0019] S106: The soup spoon contains high-temperature molten metal, and the soup spoon is located directly below the processing station;

[0020] S107: The controller controls the lifting platform to descend and the stirring motor to work, and the stirring and quenching rod descends and extends into the high-temperature molten metal to stir, so that the high-temperature molten metal is made into a semi-solid slurry;

[0021] S108: After the pulping is completed, the controller controls the lifting platform to rise and the stirring motor to stop stirring;

[0022] S109: The controller controls the rotating motor to work so that the stirring and chilling rod is located directly above the cooling mechanism;

[0023] S110: Repeat steps S103-S104.

[0024] To achieve the above-mentioned purpose, in the second aspect, the inventor provides a metal semi-solid slurrying equipment, including a melting and holding furnace, a metal semi-solid slurrying cooling device such as any one of the items provided by the inventor above, a die-casting machine and a manipulator; the melting and holding furnace is used to melt the high-temperature metal alloy into high-temperature molten metal; the die-casting machine is used to liquid cast the semi-solid slurry; the manipulator drives the spoon to move into the melting and holding furnace to scoop the high-temperature molten metal, and after scooping, drives the spoon to move to the bottom of one of the stirring mechanisms, and drives the semi-solid slurry in the spoon into the die-casting machine.

[0025] Different from the prior art, the technical solution of the present application sets a stirring and chilling rod with a solid structure and adopts a low-temperature metal alloy in a molten state as the heat transfer medium of the stirring and chilling rod that needs to be cooled, and utilizes the high thermal conductivity and high boiling point of the low-temperature metal alloy to quickly and reliably reduce the stirring and chilling rod to the initial temperature. The stirring and chilling rod can have a lower initial temperature and have a better heat transfer effect on the high-temperature molten metal, which helps to improve the pulping quality and shorten the pulping time to increase production capacity. Compared with the prior art, the heat dissipation mechanism and the rotating mechanism of the coolant are separately arranged, which does not affect the life of the rotating mechanism, and even if the circulating pump is abnormal, it is not easily affected by the temperature to cause the risk of boiling and cracking of the stirring rod.

[0026] The above-mentioned records related to the invention content are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation mode and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present application and other related contents, and shall not be considered as limitations of the present application.

[0028] In the drawings of the specification:

[0029] Figure 1 This is a pulping flow chart of the metal semi-solid pulping equipment in this application;

[0030] Figure 2 It is a structural schematic diagram of the metal semi-solid slurry cooling device in this application;

[0031] Figure 3 It is a structural schematic diagram of the metal semi-solid pulping cooling device in this application from another perspective;

[0032] Figure 4 It is a front view of the metal semi-solid slurry cooling device in this application;

[0033] Figure 5 It is a structural schematic diagram of the cooling mechanism in this application;

[0034] Figure 6 A top view of the cooling mechanism in this application;

[0035] Figure 7 It is a schematic diagram of the heat dissipation mechanism and the cooling pipe in the present application being connected;

[0036] Figure 8 The composition and melting point of the materials that can be used as low-temperature metal alloys in this application.

[0037] The reference numerals in the above drawings are described as follows:

[0038] 100-metal semi-solid pulping cooling device; 1-rotating mechanism; 11-fixed bracket; 12-rotating motor; 13-rotating bracket; 131-rotating arm; 14-lifting platform; 2-stirring mechanism; 21-stirring motor; 22-stirring chilling rod; 23-protective gas releaser; 24-thermal sensor; 3-soup spoon; 4-cooling mechanism; 41-double-layer insulation barrel; 42-low-temperature metal alloy; 43-cooling pipe; 431-inlet of cooling pipe; 432-outlet of cooling pipe; 44-heating pipe; 45-metal liquid temperature measuring rod; 5-heating mechanism; 51-cooling liquid pipeline; 52-cooling liquid tank; 53-circulating pump; 54-liquid cooling radiator; 55-liquid cooling temperature sensor; 56-flow regulating valve. DETAILED DESCRIPTION

[0039] According to some embodiments of the present application, please refer to Figure 1The present invention provides a metal semi-solid slurry making device, comprising a melting and holding furnace, a metal semi-solid slurry making cooling device 100, a die-casting machine and a manipulator; the melting and holding furnace is used to melt a high-temperature metal alloy into a high-temperature molten metal; the die-casting machine is used to cast the semi-solid slurry; the manipulator drives a spoon 3 to move into the melting and holding furnace to scoop up the high-temperature molten metal, and after scooping up, drives the spoon 3 to move to the bottom of one of the stirring mechanisms 2, and drives the semi-solid slurry in the spoon 3 into the die-casting machine.

[0040] The melting and holding furnace uses electric energy or heat energy generated by fuel combustion to heat the metal to above its melting point to achieve the purpose of melting and holding. In this embodiment, the melting and holding furnace is mainly used to melt the high-temperature metal alloy into high-temperature molten metal. Preferably, the high-temperature metal alloy is an aluminum alloy.

[0041] The working principle of the metal semi-solid slurry making equipment is as follows: first, the robot drives the spoon 3 to move to the melting and holding furnace to scoop up the high-temperature molten metal; secondly, the robot drives the spoon 3 after scooping up the high-temperature molten metal to move to the bottom of one of the stirring mechanisms 2, and the metal semi-solid slurry making cooling device 100 starts to make semi-solid slurry; thirdly, after the semi-solid slurry is made, the robot drives the semi-solid slurry in the spoon 3 to move to the top of the feed port of the die-casting machine and pours the semi-solid slurry into the die-casting machine. After pouring, the robot drives the spoon out of the die-casting machine; finally, the die-casting machine performs die-casting and takes out the prepared molded parts, and the robot drives the spoon 3 back to the melting and holding furnace to prepare the semi-solid slurry again.

[0042] According to some embodiments of the present application, please refer to Figures 1 to 8The present invention provides a metal semi-solid pulping cooling device 100, comprising a rotating mechanism 1, two or more stirring mechanisms 2, a spoon 3, a cooling mechanism 4, a heat dissipation mechanism 5 and a controller; the rotating mechanism 1 comprises a fixed bracket 11, a rotating motor 12, a rotating bracket 13 and two or more lifting platforms 14, the fixed bracket 11 is equipped with a rotating motor 12, the rotating bracket 13 is equipped with the rotating motor 12, the rotating motor 12 is used to drive the rotating bracket 13 to rotate 360 ​​degrees, the rotating bracket 13 comprises two or more rotating arms 131, each rotating arm 131 is equipped with a lifting platform 14; each lifting platform 14 is equipped with a stirring mechanism 2, the stirring mechanism 2 comprises a stirring motor 21, a stirring chilling rod 22 and a chilling rod temperature measuring rod, the stirring motor 21 is installed on the lifting platform 14, the output end of the stirring motor 21 is connected to the stirring chilling rod 22, the stirring chilling rod 22 is solid inside, the chilling rod temperature measuring rod is connected to the stirring chilling rod 22, and is used for real-time Monitor the temperature of the stirring and chilling rod 22; the spoon 3 is located directly below one of the stirring mechanisms 2, and the spoon 3 is used to hold the high-temperature molten metal; the cooling mechanism 4 is located directly below the other stirring mechanism 2, and the cooling mechanism 4 includes a double-layer insulation barrel 41, a low-temperature metal alloy 42, a cooling pipe 43, a heating pipe 44 and a molten metal temperature measuring rod 45, the double-layer insulation barrel 41 is equipped with a low-temperature metal alloy 42, the low-temperature metal alloy 42 is equipped with a cooling pipe 43, a heating pipe 44 and a molten metal temperature measuring rod 45, the cooling pipe 4 3 is located between the heating tube 44 and the inner wall of the double-layer insulation barrel 41, the inner diameter of the heating tube 44 is larger than the outer diameter of the stirring and quenching rod 22, the heating tube 44 is used to heat the low-temperature metal alloy 42 according to the temperature monitored by the metal liquid temperature measuring rod 45, so that the low-temperature metal alloy 42 is in a molten state; the heat dissipation mechanism 5 includes a coolant pipeline 51, a coolant tank 52, a circulation pump 53 and a liquid cooling radiator 54, the inlet 431 of the cooling tube is connected with the outlet 432 of the cooling tube through the coolant pipeline 51, the coolant tank 52, the circulation pump 53 and the liquid cooling radiator 54 are all installed on the coolant pipeline 51, the circulation pump 53 is located between the coolant tank 52 and the inlet 431 of the cooling tube, the liquid cooling radiator 54 is located between the coolant tank 52 and the outlet 432 of the cooling tube, the liquid cooling radiator 54 is used to cool the coolant flowing out of the cooling tube 43, and return it to the cooling tube 43 through the circulation pump 53; the controller is respectively connected to the rotating mechanism 1, the two or more stirring mechanisms 2, the cooling mechanism 4 and the heat dissipation mechanism 5.

[0043] The fixed bracket 11 can be directly fixedly mounted on the heat dissipation mechanism 5, or it can be mounted on a separate fixed seat or the ground. Similarly, the soup spoon 3 and the double-layer heat-insulating bucket 41 are also placed on the fixed plane following the fixed bracket 11. For example: when the fixed bracket 11 is fixedly mounted on the heat dissipation mechanism 5, the soup spoon 3 and the double-layer heat-insulating bucket 41 are also placed on the heat dissipation mechanism 5. Optionally, the rotating bracket 13 also includes a connecting rod, which is mounted on the rotating motor 12, and the connecting rod is connected to more than two rotating arms 131. The shape of the connecting rod can be set according to the number of rotating arms 131. For example, when there are two rotating arms 131, the connecting rod is in a straight line shape and the rotating bracket 13 is in an H shape. When there are three rotating arms 131, the connecting rod is in a T shape. A lifting platform 14 is installed on each rotating arm 131. The lifting platform 14 is an existing lifting platform, so it is not repeated. In some embodiments, a slide rail extending in the vertical direction may be provided on the rotating arm 131, a slider is connected to the slide rail, a lifting cylinder is connected to the slider, and the slider can be driven to move along the slide rail under the action of the lifting cylinder, and a stirring motor 21 is installed on the slider.

[0044] The stirring and chilling rod 22 can be selected to have good non-stick properties and thermal shock resistance to metals. For example, temperature-resistant ceramics (boron nitride, aluminum nitride, etc.) are selected. Therefore, when the stirring and chilling rod 22 is removed, it is not easy for the metal alloy liquid to adhere to the surface and the risk of rapid cooling and heating damage to the stirring and chilling rod 22 is low. The stirring and chilling rod 22 can be made of solid non-stick ceramic material, or a copper rod or the like can be added inside to enhance the heat transfer effect of the stirring and chilling rod 22. Among them, the temperature of the stirring and chilling rod 22 is monitored by the chilling rod temperature measuring rod to determine whether the temperature of the stirring and chilling rod 22 reaches the low-temperature initial state. Only when the low-temperature initial state is reached can the high-temperature metal liquid be stirred and slurried (specifically, the chilling rod temperature measuring rod is inserted into the stirring and chilling rod 22 to directly measure the internal temperature of the chilling rod when in use, and then the temperature measurement signal is connected to the temperature acquisition board through a conductive slip ring (collector ring)). When the stirring and quenching rod 22 is actually used, it is necessary to stir the high-temperature molten metal strongly and cool it down quickly to a suitable solid phase ratio temperature, and the center temperature of the high-temperature molten metal is higher than the bottom and the wall of the spoon 3. If the spoon wall or bottom is used for rapid cooling, it is easy for the high-temperature molten metal to solidify into a shell near the wall or bottom of the spoon 3, while the inside is still liquid, resulting in an uneven temperature field. Therefore, the best rapid cooling position for the stirring and quenching rod 22 to insert the high-temperature molten metal is the center of the high-temperature molten metal. More than two stirring mechanisms 2 are set, and more than two stirring mechanisms 2 can be controlled by the rotating mechanism 1. When one stirring mechanism 2 is in the position of the spoon 3, another stirring mechanism 2 is in the position of the cooling mechanism 4, and the redundant stirring mechanism 2 can be used as a backup, thereby improving the overall pulping efficiency. In some embodiments, three stirring mechanisms 2 are provided, and two cooling mechanisms 4 and heat dissipation mechanisms 5 are provided; one stirring mechanism 2 is used to cooperate with the spoon 3, and the other two stirring mechanisms 2 correspond to two cooling mechanisms 4, and the two cooling mechanisms 4 correspond to two heat dissipation mechanisms 5. That is, there are two sets of cooling mechanisms 4 and heat dissipation mechanisms 5 that can be used and can be used as backup for each other.

[0045] The low temperature metal alloy 42 is a low temperature metal alloy 42 with a melting point of 50°C-150°C, and uses a certain proportion of bismuth, cadmium, tin, lead, dysprosium, indium and other elements as main components to form different eutectic low melting point alloys. Their composition and melting point are shown in Figure 8. Optionally, the low-temperature metal alloy 42 is a tin-bismuth alloy, with bismuth and tin low-melting-point alloy elements as main components and a melting point of about 70°C-150°C. The low-temperature metal alloy 42 is easily controlled in a molten state by heating due to its low melting point. The stirring and chilling rod 22 extending into the liquid low-temperature metal alloy 42 can ensure good contact. At the same time, the low-temperature metal liquid itself has a higher thermal conductivity, specific heat capacity per unit volume and a higher boiling point than ordinary coolants. The stirring and chilling rod 22 can quickly and reliably bring heat to the low-temperature metal liquid through contact, and then bring the heat to an external heat sink through the cooling tube 43 in the low-temperature metal liquid to release it to the outside. At the same time, the boiling point of the low-temperature metal alloy 42 is high, and the stirring and cooling rod in a high-temperature state will not cause explosive boiling and gasification when it is extended into the low-temperature metal liquid, and there is no need to frequently replenish the low-temperature metal alloy 42.

[0046] The double-layer insulation barrel 41 has a good insulation effect. A low-temperature metal alloy 42 is arranged in the double-layer insulation barrel 41. A heating tube 44 for heating the low-temperature metal alloy 42, a cooling tube 43 for cooling the low-temperature metal liquid, and a metal liquid temperature measuring rod 45 for monitoring the temperature of the low-temperature metal alloy 42 are arranged in the low-temperature metal alloy 42. The temperature monitored by the metal liquid temperature measuring rod 45 is used to determine whether the low-temperature metal alloy 42 is in a molten state. When it is in a solidified state, the heating tube 44 placed in the low-temperature metal alloy 42 is turned on to heat it, so that the low-temperature metal alloy 42 is melted and maintained within an initial temperature range.

[0047] The heat dissipation mechanism 5 is provided separately from the cooling mechanism 4 , and is mainly used to perform heat exchange with the coolant in the cooling pipe 43 .

[0048] The controller is a master switch that can be automatically controlled through the built-in program or with the assistance of an external remote control.

[0049] The technical solution of the present application sets the stirring and chilling rod 22 to adopt a solid structure and adopts a low-temperature metal alloy 42 in a molten state as the heat transfer medium of the stirring and chilling rod 22 that needs to be cooled, and utilizes the high thermal conductivity and high boiling point of the low-temperature metal alloy 42 to quickly and reliably reduce the stirring and chilling rod 22 to the initial temperature. The stirring and chilling rod 22 can have a lower initial temperature and have a better heat transfer effect on the high-temperature molten metal, which helps to improve the pulping quality and shorten the pulping time to increase production capacity. Compared with the prior art, the heat dissipation mechanism 5 of the coolant is separately arranged from the rotating mechanism 1, which does not affect the life of the rotating mechanism 1, and even if the circulating pump 53 is abnormal, it is not easily affected by the temperature to cause the risk of boiling and cracking of the stirring rod.

[0050] like Figure 7As shown, the heat dissipation mechanism 5 also includes a liquid cooling temperature sensor 55 and a flow regulating valve 56, which are installed on the coolant pipeline 51, the liquid cooling temperature sensor 55 is located between the liquid cooling radiator 54 and the outlet 432 of the cooling pipe, and the flow regulating valve 56 is located between the circulation pump 53 and the inlet 431 of the cooling pipe. The controller is also respectively communicated with the liquid cooling temperature sensor 55 and the flow regulating valve 56, and the controller is used to control the flow regulating valve 56 to adjust the flow and control the fan air volume on the liquid cooling radiator 54 according to the coolant temperature monitored in real time by the liquid cooling temperature sensor 55.

[0051] The flow regulating valve 56 and the liquid cooling temperature sensor 55 are both existing structures. In actual use, as long as the coolant temperature in the coolant tank 52 is kept slightly lower or close to the melting point of the low-temperature metal liquid, the flow of the flow regulating pump is continuously controlled to prevent the low-temperature metal liquid from solidifying. When the heat dissipation mechanism 5 is just started or abnormal, the heating tube 44 placed in the low-temperature metal alloy 42 can be used to heat it up and melt it to the working temperature. In addition, by controlling the flow of the coolant and the fan air volume on the liquid cooling radiator 54 through the flow regulating valve 56, the low-temperature metal alloy 42 can be kept in a molten state and at a relatively low temperature, so that the stirring and quenching rod 22 inserted into the low-temperature metal liquid has enough temperature difference to quickly transfer heat to the low-temperature metal liquid.

[0052] like Figure 3 and Figure 4 As shown, the stirring mechanism 2 further includes a protective gas releaser 23 , the top of the protective gas releaser 23 is installed on the lifting platform 14 , and the bottom of the protective gas releaser 23 is sleeved outside the stirring and quenching rod 22 .

[0053] The stirring and chilling rod 22 directly extends into the high-temperature molten metal, which will damage the surface oxide layer. Therefore, a protective gas releaser 23 is provided. The protective gas releaser 23 and the stirring and chilling rod 22 are synchronously lowered, and the protective gas release is turned on during the lowering process, so that the liquid surface of the high-temperature molten metal is always protected by the protective gas during the pulping stage, and it is not easy to produce oxidized slag. Since the low-temperature metal alloy 42 is at a relatively low temperature and is not easily oxidized, the protective gas releaser 23 can be turned off when the stirring and chilling rod 22 is extended into the low-temperature molten metal.

[0054] like Figure 4 As shown, the stirring mechanism 2 also includes more than two thermal sensors 24, and a thermal sensor 24 is installed at the bottom of each rotating arm 131, and the sensing end of the thermal sensor 24 is aimed downward. The controller is also communicated with the thermal sensor 24. The controller is used to monitor the internal temperature of the soup spoon 3 in real time according to the thermal sensor 24 to determine whether high-temperature alloy liquid is placed in the soup spoon 3, so as to control the descent of the lifting platform 14, open the protective gas releaser 23, and operate the stirring motor 21.

[0055] By communicating with the controller through the thermal sensor 24, it can be determined whether the soup spoon 3 is already filled with high-temperature molten metal, and then the corresponding equipment can be controlled to work, which is more intelligent.

[0056] like Figure 4 As shown, the controller is also used to monitor the internal temperature of the spoon 3 in real time according to the thermal sensor 24 to determine whether the high-temperature alloy liquid in the spoon 3 is made into a semi-solid slurry, so as to control the lifting platform 14 to rise, the protective gas releaser 23 to close, and the stirring motor 21 to close.

[0057] Similarly, the thermal sensor 24 can also determine whether the high-temperature alloy liquid is made into a semi-solid slurry, and then control the corresponding equipment to stop working, and complete the linkage intelligently. Preferably, more than two thermal sensors 24 can be installed at the bottom of each rotating arm 131. More than two thermal sensors 24 monitor the temperature of different parts of the spoon 3, and the feedback is more accurate.

[0058] like Figure 5 and Figure 6 As shown, two molten metal temperature measuring rods 45 are provided, one of which is located between the inner wall of the insulation barrel and the cooling pipe 43 , and the other molten metal temperature measuring rod 45 is located between the cooling pipe 43 and the heating pipe 44 .

[0059] By setting two molten metal temperature measuring rods 45 to cooperate with each other, the temperature of different positions of the low-temperature metal alloy 42 can be monitored, and the monitoring result is more accurate, which can better determine whether the low-temperature metal alloy 42 is in a molten state and reaches the set temperature.

[0060] like Figure 5 and Figure 6 As shown, the cooling tube 43 and the heating tube 44 are spiral.

[0061] The spiral shape has a larger surface area than the general shape. For the cooling tube 43, it can also have good contact with the low-temperature metal liquid, and it is easier to transfer the heat absorbed by the low-temperature metal liquid to the external heat dissipation mechanism 5 and release it to the outside to achieve heat exchange. For the heating tube 44, it has a larger contact area with the low-temperature metal alloy 42, which makes it easier to melt the low-temperature metal alloy 42 and keep the low-temperature metal alloy 42 in a molten state.

[0062] like Figure 1 As shown, the following steps are also included:

[0063] S101: The controller monitors the temperature of the low-temperature metal alloy 42 in real time according to the metal liquid temperature measuring rod 45 to ensure that the low-temperature metal alloy 42 is in a molten state and reaches a set temperature;

[0064] S102: The controller monitors the temperature of the stirring and chilling rod 22 in real time according to the chilling rod temperature measuring rod to determine whether the stirring and chilling rod 22 has reached the initial temperature. If the stirring and chilling rod 22 has not reached the initial temperature, the controller controls the rotating motor 12 to work so that the stirring and chilling rod 22 is located directly above the cooling mechanism 4.

[0065] S103: The controller controls the lifting platform 14 to descend, and the stirring and quenching rod 22 descends and extends into the low-temperature metal alloy 42. At the same time, the controller controls the liquid cooling radiator 54 to work to take away the heat of the low-temperature metal alloy 42. The cooling liquid after absorbing heat flows to the liquid cooling radiator 54 and releases the heat to the outside through the fan. The cooling liquid after releasing heat flows back to the cooling liquid tank 52 through the circulation pump 53 for use, so as to ensure that the low-temperature metal alloy 42 is in a molten state and reaches the set temperature.

[0066] S104: When the stirring and quenching rod 22 reaches the initial temperature, the controller controls the lifting platform 14 to rise to the initial position;

[0067] S105: The controller controls the rotating motor 12 to work so that the stirring and quenching rod 22 reaching the initial temperature is located at the processing station;

[0068] S106: The soup spoon 3 is filled with high-temperature molten metal, and the soup spoon 3 is located directly below the processing station;

[0069] S107: The controller controls the lifting platform 14 to descend and the stirring motor 21 to work, and the stirring and quenching rod 22 descends and extends into the high-temperature molten metal to stir, so that the high-temperature molten metal is made into a semi-solid slurry;

[0070] S108: After the pulping is completed, the controller controls the lifting platform 14 to rise and the stirring motor 21 to stop stirring;

[0071] S109: the controller controls the rotating motor 12 to work so that the stirring and chilling rod 22 is located directly above the cooling mechanism 4;

[0072] S110: Repeat steps S103-S104.

[0073] In step S102, it is important to note that if the device has just been turned on or an abnormality causes the temperature of the stirring and chilling rod 22 to be low, the stirring and chilling rod 22 needs to reach the initial temperature first.

[0074] In step S103, it is important to note that the depth and time of the stirring and quenching rod 22 inserted into the low-temperature metal liquid controls the appropriate speed and amount of heat transfer. The high thermal conductivity of the low-temperature metal alloy 42 will quickly absorb heat and heat up. At the same time, the circulation pump 53 is started, and the coolant flows through the spiral cooling tube 43 to take away the heat of the low-temperature metal alloy 42. The coolant after absorbing heat flows to the liquid cooling radiator 54 and releases the heat to the outside through the fan. The coolant after releasing heat flows back to the coolant tank 52 for recycling.

[0075] In step S105, it should be emphasized that the processing station is a station reserved specifically for the soup ladle 3, so that the soup ladle 3 containing high-temperature molten metal can be placed directly below the processing station.

[0076] In step S107, it is important to explain that the controller controls the lifting platform 14 to descend in the vertical direction, turns on the protective gas releaser 23 and the stirring motor 21, and the stirring and quenching rod 22 descends and extends into the high-temperature molten metal to stir, so that the high-temperature molten metal is made into a semi-solid slurry; wherein, the stirring and quenching rod 22 partially extends into the high-temperature molten metal to be slurried, and absorbs heat through heat transfer by utilizing its own heat storage capacity, and at the same time, the stirring and quenching rod 22 is driven by the stirring motor 21 to stir the high-temperature molten metal at a certain speed and regularity. Controlling the depth and insertion time of the stirring and quenching rod 22 into the high-temperature molten metal can control the speed and amount of heat transfer. Rapid cooling and stirring will cause the high-temperature molten metal to form a high-quality semi-solid structure with fine grains and high roundness.

[0077] In step S108 , it should be emphasized that after the pulping is completed, the controller controls the lifting platform 14 to rise in the vertical direction, closes the protective gas releaser 23 , and stops the stirring motor 21 from stirring.

Claims

1. A metal semi-solid pulping cooling device, characterized in that: include: A rotating mechanism (1), the rotating mechanism (1) comprising a fixed support (11), a rotating motor (12), a rotating support (13) and two or more lifting platforms (14), the rotating motor (12) being mounted on the fixed support (11), the rotating support (13) being mounted on the rotating motor (12), the rotating motor (12) being used to drive the rotating support (13) to rotate 360 ​​degrees, the rotating support (13) comprising two or more rotating arms (131), each of the rotating arms (131) being mounted with one of the lifting platforms (14); More than two stirring mechanisms (2), each of the lifting platforms (14) being equipped with one stirring mechanism (2), the stirring mechanism (2) comprising a stirring motor (21), a stirring and quenching rod (22) and a quenching rod temperature measuring rod, the stirring motor (21) being installed on the lifting platform (14), the output end of the stirring motor (21) being connected to the stirring and quenching rod (22), the stirring and quenching rod (22) being solid inside, and the quenching rod temperature measuring rod being connected to the stirring and quenching rod (22) for real-time monitoring of the temperature of the stirring and quenching rod (22); a soup spoon (3), the soup spoon (3) being located directly below one of the stirring mechanisms (2), and the soup spoon (3) being used to hold high-temperature molten metal; a cooling mechanism (4), the cooling mechanism (4) being located directly below the other stirring mechanism (2), the cooling mechanism (4) comprising a double-layer heat-insulating barrel (41), a low-temperature metal alloy (42), a cooling pipe (43), a heating pipe (44) and a molten metal temperature measuring rod (45), the low-temperature metal alloy (42) being installed in the double-layer heat-insulating barrel (41), the cooling pipe (43), the heating pipe (44) and the molten metal temperature measuring rod (45) being installed in the low-temperature metal alloy (42), the cooling pipe (43) being located between the heating pipe (44) and the inner wall of the double-layer heat-insulating barrel (41), the inner diameter of the heating pipe (44) being larger than the outer diameter of the stirring and quenching rod (22), the heating pipe (44) being used to heat the low-temperature metal alloy (42) according to the temperature monitored by the molten metal temperature measuring rod (45) so that the low-temperature metal alloy (42) is in a molten state; A heat dissipation mechanism (5), the heat dissipation mechanism (5) comprising a coolant pipe (51), a coolant tank (52), a circulation pump (53) and a liquid cooling radiator (54); the inlet (431) of the cooling pipe is connected to the outlet (432) of the cooling pipe via the coolant pipe (51); the coolant tank (52), the circulation pump (53) and the liquid cooling radiator (54) are all installed on the coolant pipe (51); the circulation pump (53) is located between the coolant tank (52) and the inlet (431) of the cooling pipe; the liquid cooling radiator (54) is located between the coolant tank (52) and the outlet (432) of the cooling pipe; the liquid cooling radiator (54) is used to cool the coolant flowing out of the cooling pipe (43) and return it to the cooling pipe (43) via the circulation pump (53); A controller is communicatively connected to the rotating mechanism (1), the two or more stirring mechanisms (2), the cooling mechanism (4), and the heat dissipation mechanism (5).

2. The metal semi-solid slurry cooling device according to claim 1, characterized in that: The heat dissipation mechanism (5) further comprises a liquid cooling temperature sensor (55) and a flow regulating valve (56), wherein the liquid cooling temperature sensor (55) and the flow regulating valve (56) are installed on the coolant pipe (51), wherein the liquid cooling temperature sensor (55) is located between the liquid cooling radiator (54) and the outlet (432) of the cooling pipe, and the flow regulating valve (56) is located between the circulation pump (53) and the inlet (431) of the cooling pipe. The controller is also respectively connected to the liquid cooling temperature sensor (55) and the flow regulating valve (56) for communication, and the controller is used to control the flow regulating valve (56) to adjust the flow and control the air volume of the fan on the liquid cooling radiator (54) according to the coolant temperature monitored in real time by the liquid cooling temperature sensor (55).

3. The metal semi-solid slurry cooling device according to claim 1, characterized in that: The stirring mechanisms (2) are provided in three pieces, and the cooling mechanisms (4) and the heat dissipation mechanisms (5) are provided in two pieces; One of the stirring mechanisms (2) is used to cooperate with the soup spoon (3), the other two stirring mechanisms (2) correspond to the two cooling mechanisms (4), and the two cooling mechanisms (4) correspond to the two heat dissipation mechanisms (5).

4. The metal semi-solid slurry cooling device according to claim 1, characterized in that: The stirring mechanism (2) further comprises a protective gas releaser (23), the top of the protective gas releaser (23) being mounted on the lifting platform (14), and the bottom of the protective gas releaser (23) being sleeved outside the stirring and quenching rod (22).

5. The metal semi-solid slurry cooling device according to claim 4, characterized in that: The stirring mechanism (2) further comprises two or more thermal sensors (24), one thermal sensor (24) being mounted at the bottom of each rotating arm (131), the sensing end of the thermal sensor (24) being directed downward, and the controller being in communication connection with the thermal sensor (24). The controller is used to monitor the internal temperature of the soup spoon (3) in real time according to the thermal sensor (24) to determine whether a high-temperature alloy liquid is placed in the soup spoon (3), so as to control the descent of the lifting platform (14), the opening of the protective gas releaser (23), and the operation of the stirring motor (21).

6. The metal semi-solid slurry cooling device according to claim 5, characterized in that: The controller is also used to monitor the internal temperature of the soup spoon (3) in real time according to the thermal sensor (24) to determine whether the high-temperature alloy liquid in the soup spoon (3) is made into a semi-solid slurry, so as to control the lifting platform (14) to rise, the protective gas releaser (23) to turn off, and the stirring motor (21) to turn off.

7. The metal semi-solid slurry cooling device according to claim 1, characterized in that: Two molten metal temperature measuring rods (45) are provided, one of which is located between the inner wall of the double-layer insulation barrel (41) and the cooling pipe (43), and the other is located between the cooling pipe (43) and the heating pipe (44).

8. The metal semi-solid slurry cooling device according to claim 1, characterized in that: The cooling tube (43) and the heating tube (44) are spiral-shaped.

9. The metal semi-solid slurry cooling device according to claim 1, characterized in that: The method for using the metal semi-solid pulping cooling device comprises the following steps: S101: the controller monitors the temperature of the low-temperature metal alloy (42) in real time according to the molten metal temperature measuring rod (45) to ensure that the low-temperature metal alloy (42) is in a molten state and reaches a set temperature; S102: the controller monitors the temperature of the stirring chilling rod (22) in real time according to the chilling rod temperature measuring rod to determine whether the stirring chilling rod (22) has reached the initial temperature; if the stirring chilling rod (22) has not reached the initial temperature, the controller controls the rotating motor (12) to operate so that the stirring chilling rod (22) is located directly above the cooling mechanism (4); S103: the controller controls the lifting platform (14) to descend, and the stirring quenching rod (22) to descend and extend into the low-temperature metal alloy (42). At the same time, the controller controls the liquid cooling radiator (54) to work so as to take away the heat of the low-temperature metal alloy (42). The cooling liquid after absorbing heat flows to the liquid cooling radiator (54) and releases the heat to the outside through the fan. The cooling liquid after releasing heat flows back to the cooling liquid tank (52) through the circulation pump (53) for use, so as to ensure that the low-temperature metal alloy (42) is in a molten state and reaches the set temperature. S104: when the stirring and quenching rod (22) reaches the initial temperature, the controller controls the lifting platform (14) to rise to the initial position; S105: the controller controls the rotating motor (12) to operate so that the stirring and quenching rod (22) that has reached the initial temperature is located at a processing station; S106: the soup spoon (3) is filled with high-temperature molten metal, and the soup spoon (3) is located directly below the processing station; S107: the controller controls the lifting platform (14) to descend and the stirring motor (21) to work, and the stirring and quenching rod (22) to descend and extend into the high-temperature molten metal to stir, so that the high-temperature molten metal is made into a semi-solid slurry; S108: After the pulping is completed, the controller controls the lifting platform (14) to rise and the stirring motor (21) to stop stirring; S109: the controller controls the rotating motor (12) to operate so that the stirring and chilling rod (22) is located directly above the cooling mechanism (4); S110: Repeat steps S103-S104.

10. A metal semi-solid pulping device, characterized in that: include: A melting and holding furnace, wherein the melting and holding furnace is used to melt a high-temperature metal alloy into a high-temperature molten metal; The metal semi-solid slurry cooling device (100) according to any one of claims 1 to 9; A die-casting machine, the die-casting machine being used to hydraulically cast a semi-solid slurry; A robot arm drives the spoon (3) to move into the melting and holding furnace to scoop up the high-temperature molten metal, and after scooping up, drives the spoon (3) to move to the bottom of one of the stirring mechanisms (2), and drives the semi-solid slurry in the spoon (3) into the die-casting machine.

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