A temperature control device for a die-casting mold

Abstract

The present invention belongs to the technical field of mold temperature control, and discloses a die-casting mold temperature control device, including a separation tank, a return oil pipe and a liquid discharge temperature control mechanism. Temperature sensors are installed on both the return oil pipe and the liquid discharge temperature control mechanism. The output end of the return oil pipe is communicated with the upper part of the separation tank; in the above solution, the heat-conducting oil enters the return oil pipe and presses the spring baffle downward. At this time, the heat-conducting oil will form a conical heat-conducting oil film between the inner wall of the output end of the return oil pipe and the outer wall of the spring baffle and enter the separation tank. The dispersed heat-conducting oil will fall on the conical perforated plate and fall into the liquid collecting cylinder through the guidance of the conical perforated plate. At the same time, the ultrasonic generator operates to discharge the gas inside the heat-conducting oil in the liquid collecting cylinder to make it float, and at the same time, the bubbles floating on the liquid surface at the top of the liquid collecting cylinder are broken by the rotation at the bottom of the defoaming slurry mechanism, avoiding the influence of the bubbles in the heat-conducting oil on the mold.

Description

Technical Field

[0001] The present invention belongs to the technical field of mold temperature control, and specifically relates to a die-casting mold temperature control device. Background Art

[0002] A mold temperature controller is a temperature control device used for die-casting molds, which mainly realizes precise control of the mold temperature through the circulation of heating or cooling media.

[0003] The mold temperature controller is connected to the pipeline on the die-casting mold through an oil return pipeline and an oil supply pipeline. Its principle is that through a heat-conducting oil circulation system, the heated oil is pumped into the internal pipeline of the mold, and heat exchange is used to preheat or cool the mold, so as to avoid sticking of the mold caused by high temperature or dimensional deviation, reduce the thermal stress impact on the mold, and prevent the mold from cracking or premature aging.

[0004] For example, the invention patent with the publication number CN105818348B discloses a mold temperature control device including an air storage tank, a heating tank and a heat exchanger. The air storage tank is provided with a gas guide pipe for steam output, the heating tank has a water inlet and is internally provided with a heating pipe, the heating tank is connected and communicated with the air storage tank through a gas transmission pipe, and the heat exchanger has a cold water inlet, a hot water outlet, a steam recovery port and a condensate discharge port. The hot water outlet is connected to the water inlet of the heating tank. It is characterized in that: both the air storage tank and the heating tank are strip-shaped and arranged at intervals up and down, and, at least three gas transmission pipes are arranged at both ends and the middle of the air storage tank respectively. Compared with the prior art, the advantages of the present invention are: the multi-channel design can make the whole amount in the heating tank enter the air storage tank in the same time, so that the steam saturation degree output from the air storage tank is relatively high, thus ensuring the heat transfer effect of the output steam. The temperature of the saturated steam in the above scheme is determined by its pressure, but in actual application, if there is moisture in the steam or local overheating occurs, it will cause temperature fluctuations.

[0005] For another example, the invention of the enhanced polypropylene engineering plastic processing equipment with the publication number of CN119773163A and its preparation method include a screw extruder, a feeding mechanism located at the top of the screw extruder, a heat conduction mechanism located outside the screw extruder, an upper die body and a lower die body located at the output end of the screw extruder. The upper die body and the lower die body are combined, and a die support frame is supported at the bottom of the lower die body. The bottom end of the die support frame is fixedly connected with a base; the heat conduction mechanism includes a heat pipe body and a cold pipe body, and the heat pipe body is filled with heat conduction oil, and the cold pipe body is filled with coolant. A plurality of hollow heat conduction blocks are connected between the heat pipe body and the cold pipe body at the same time. The enhanced polypropylene engineering plastic processing equipment and its preparation method disclosed in the present invention can ensure the melting demand, fluidity, mixing property of raw materials during the feeding process and the quality of finished products, and at the same time play a role in cost saving. In addition, it can also avoid the sudden cooling of the die during the cooling process and provide effective protection for the die. However, when the die temperature is too high, the temperature of the oil liquid will rise rapidly in the die, and local gasification of the oil liquid will occur to generate bubbles. And these bubbles will act like a heat insulation layer and hinder the heat conduction between the die and the heat conduction oil, thereby reducing the heat exchange effect between the oil liquid and the inner wall of the die, and exacerbating the situation of local overheating or overcooling of the die. And when the bubbles flow with the oil liquid to a narrow pipeline or pump body, it will cause a sudden change in local pressure and cause additional impact on equipment such as the pump body, shortening its service life.

[0006] Based on this, to solve the above problems, a die-casting mold temperature control device is proposed. Summary of the Invention

[0007] To solve the problems raised in the above background technology, the present invention provides a die-casting mold temperature control device, which solves the problems that the heat conduction oil in the mold temperature control machine will generate bubbles during the circulation process, reducing the temperature control effect on the mold and shortening the service life of the equipment.

[0008] To achieve the above object, the present invention provides the following technical solution: A die-casting mold temperature control device includes a separation tank, a return oil pipe and a liquid discharge temperature control mechanism. Temperature sensors are installed on both the return oil pipe and the liquid discharge temperature control mechanism. The output end of the return oil pipe is communicated with the upper part of the separation tank. A conical porous plate is fixedly connected to the middle of the separation tank, and there is a gap between the outer periphery of the conical porous plate and the inner wall of the separation tank. A liquid collecting cylinder for receiving the heat conduction oil output from the return oil pipe is arranged at the bottom of the separation tank. The input end of the liquid discharge temperature control mechanism is communicated with the bottom of the liquid collecting cylinder;

[0009] A retaining skirt is fixedly connected to the bottom end of the return oil pipe. A pull spring baffle for blocking the output end of the return oil pipe in the initial state is arranged on the return oil pipe. Air holes are opened at the top of the return oil pipe;

[0010] An ultrasonic generator is fixedly connected to the separation tank, and its generating end extends into the liquid collection cylinder;

[0011] A defoaming slurry mechanism located inside the separation tank is movably installed on the oil return pipe. The bottom end of the defoaming slurry mechanism is located on the liquid surface of the heat-conducting oil in the liquid collection cylinder and can be telescopically adjusted according to the liquid surface height. A fan blade is also arranged on the outer periphery of the defoaming slurry mechanism. When the heat-conducting oil is output in the oil return pipe, it can impact the fan blade and drive the defoaming slurry mechanism to rotate.

[0012] Preferably, a condensation mechanism for collecting and condensing the gas in the separation tank and then re-flowing it back into the separation tank is fixedly connected to the top of the separation tank

[0013] Preferably, the liquid discharge temperature control mechanism includes a pump body, the input end of which is connected to the bottom of the liquid collection cylinder. The output end of the pump body is fixedly connected to an electric control three-way valve. The two output ends of the electric control three-way valve are respectively connected to a heating chamber and a cooling chamber, and the output ends of both are connected to the same liquid discharge pipe.

[0014] Preferably, the defoaming slurry mechanism includes a main shaft movably connected to the oil return pipe. A spline shaft is connected to the main shaft by internal splines. A cavity is provided at the bottom end of the spline shaft. A crushing paddle is fixedly connected to the bottom end of the spline shaft. An adjusting component for reducing the pressure of the spline shaft on the liquid surface of the liquid collection cylinder is symmetrically arranged inside the main shaft;

[0015] The bottom end of the spline shaft extends into the liquid surface of the liquid collection cylinder, and the liquid buoyancy enables the crushing paddle to be above the liquid surface.

[0016] Preferably, the adjusting component includes a gear movably connected inside the main shaft, and a circular rack meshing with the gear is also vertically movably connected inside the main shaft;

[0017] A number of groups of ring teeth that can mesh with the gear are vertically arranged in the middle of the spline shaft.

[0018] Preferably, a conical dispersion plate is fixedly connected to the outer periphery of the main shaft and is located below the conical porous plate.

[0019] Preferably, a funnel is fixedly connected inside the separation tank and is located between the crushing paddle and the conical dispersion plate. A gap is left between the funnel and the outer wall of the spline shaft.

[0020] Preferably, the condensation mechanism includes a condensation box located above the separation tank. The top of the separation tank is fixedly connected to an exhaust pipe, and the top of the exhaust pipe is connected to the condensation box. Heat dissipation fins are also arranged inside the condensation box. The bottom of the condensation box is fixedly connected to a liquid return pipe, and the bottom end of the liquid return pipe is connected to the middle of the separation tank. A pressure relief valve is also arranged at the top of the condensation box.

[0021] Preferably, the bottom of the condensation box is an inclined surface, and the bottom of the inclined surface is connected to the liquid return pipe

[0022] Preferably, the bottom end of the liquid return pipe is in a V-shaped bent shape.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] In the above solution, the heat-conducting oil enters the oil return pipe and squeezes the spring baffle to move downward. At this time, the heat-conducting oil will enter the separation tank through the conical heat-conducting oil film formed between the inner wall of the output end of the oil return pipe and the outer wall of the spring baffle, and impact the fan blades, so that the defoaming slurry mechanism is driven to rotate to separate the heat-conducting oil film. The dispersed heat-conducting oil will fall on the conical perforated plate and drop into the liquid collecting cylinder through the guidance of the conical perforated plate. In the above process, the heat-conducting oil will release a large amount of heat and the gas inside it due to being dispersed. At the same time, the ultrasonic generator operates to discharge the gas inside the heat-conducting oil in the liquid collecting cylinder to make it float. At the same time, the bubbles floating on the liquid surface at the top of the liquid collecting cylinder are broken by the rotation at the bottom of the defoaming slurry mechanism. Finally, the heat-conducting oil is heated or cooled by the liquid discharge temperature control mechanism and then re-input into the die-casting mold for temperature control, avoiding the influence of the bubbles in the heat-conducting oil on the mold.

[0025] When the heat-conducting oil impacts the fan blades in the above solution, the main shaft and the spline shaft will be driven to rotate, so that the crushing blades rotate. At the same time, under the buoyancy of the cavity and the balance force of the adjusting component, the crushing blades can fit the liquid surface of the heat-conducting oil in the liquid collecting cylinder, ensuring that when the input oil volume of the oil return pipe and the output oil volume of the liquid discharge temperature control mechanism change, the crushing blades can adapt to the change of the liquid surface in the liquid collecting cylinder and can continuously break the bubbles floating on the heat-conducting oil in the liquid collecting cylinder.

[0026] In the above solution, the heat-conducting oil is guided to the top of the crushing blades through the funnel and flows down along the conical surface thereon, so as to drive the bubbles floating in the middle of the liquid collecting cylinder from the center to the outside. Since the end speed of the crushing blades is relatively fast, the crushing effect of the crushing blades on the bubbles can be better.

[0027] In the above solution, part of the cooled heat-conducting oil can be stored in the bent part of the liquid return pipe, thus forming a communicating vessel structure, ensuring that the condensed liquid in the condenser can enter the separation tank through the liquid return pipe, and at the same time blocking the gas in the separation tank from entering the condenser through the liquid return pipe to ensure that the gas-liquid pipelines can work separately and avoid mutual interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front view plane structure schematic diagram of the present invention.

[0029] Figure 2 It is a front view perspective plan view of the present invention.

[0030] Figure 3 It is a structure schematic diagram of the liquid inlet pipe of the present invention.

[0031] Figure 4This is a partial front elevation plane cross-sectional view of the present invention.

[0032] Figure 5 is Figure 4 an enlarged view of part A in

[0033] Figure 6 is Figure 4 an enlarged view of part B in

[0034] Figure 7 This is a schematic structural view of the conical dispersion plate of the present invention.

[0035] Figure 8 This is a schematic structural view of the adjustment assembly of the present invention.

[0036] Figure 9 This is a schematic top cross-sectional plane view of the main shaft of the present invention.

[0037] Figure 10 is Figure 9 an enlarged view of part C in

[0038] In the figure: 1. Separation tank; 11. Liquid collection cylinder; 12. Conical perforated plate; 13. Funnel; 2. Return oil pipe; 21. Temperature sensor; 22. Baffle skirt; 23. Air hole; 24. Spring baffle; 3. Drainage temperature control mechanism; 31. Pump body; 32. Electric control three-way valve; 33. Heating chamber; 34. Cooling chamber; 35. Drainage pipe; 4. Ultrasonic generator; 5. Condensation mechanism; 51. Condensation box; 52. Heat dissipation fins; 53. Return liquid pipe; 54. Pressure relief valve; 55. Exhaust pipe; 6. Defoaming slurry mechanism; 61. Main shaft; 611. Conical dispersion plate; 62. Crushing paddle; 63. Spline shaft; 631. Cavity; 64. Adjustment assembly; 641. Gear; 642. Circular rack; 7. Fan blade. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] As Figures 1 to 10As shown in the figure, the present invention provides a temperature control device for a die-casting mold, including a separation tank 1, a return oil pipe 2, and a liquid discharge temperature control mechanism 3. Temperature sensors 21 are installed on both the return oil pipe 2 and the liquid discharge temperature control mechanism 3. The output end of the return oil pipe 2 is communicated with the upper part of the separation tank 1. A conical porous plate 12 is fixedly connected to the middle of the separation tank 1, and there is a gap between the outer periphery of the conical porous plate 12 and the inner wall of the separation tank 1. A liquid collecting cylinder 11 for receiving the heat-conducting oil output from the return oil pipe 2 is arranged at the bottom of the separation tank 1. The input end of the liquid discharge temperature control mechanism 3 is communicated with the bottom of the liquid collecting cylinder 11;

[0041] A retaining skirt 22 is fixedly connected to the bottom end of the return oil pipe 2. A tension spring baffle 24 for blocking the output end of the return oil pipe 2 in the initial state is arranged on the return oil pipe 2. An air hole 23 is opened at the top of the return oil pipe 2;

[0042] An ultrasonic generator 4 is fixedly connected to the separation tank 1, and its generating end extends into the liquid collecting cylinder 11;

[0043] An anti-foaming slurry mechanism 6 is movably installed on the return oil pipe 2 inside the separation tank 1. The bottom end of the anti-foaming slurry mechanism 6 is located on the liquid surface of the heat-conducting oil in the liquid collecting cylinder 11 and can be telescopically adjusted according to the liquid level height. A fan blade 7 is also arranged on the outer periphery of the anti-foaming slurry mechanism 6. When the heat-conducting oil in the return oil pipe 2 is output, it can impact the fan blade 7 and drive the anti-foaming slurry mechanism 6 to rotate;

[0044] A condensation mechanism 5 for collecting and condensing the gas in the separation tank 1 and then re-flowing it back into the separation tank 1 is fixedly connected to the top of the separation tank 1;

[0045] Adopting the above scheme, when the heat-conducting oil enters the return oil pipe 2 and presses the tension spring baffle 24 downward, at this time, the heat-conducting oil will form a conical heat-conducting oil film through the inner wall of the output end of the return oil pipe 2 and the outer wall of the tension spring baffle 24 and enter the separation tank 1, and impact the fan blade 7, causing it to drive the anti-foaming slurry mechanism 6 to rotate to separate the heat-conducting oil film. The dispersed heat-conducting oil will fall on the conical porous plate 12 and drop into the liquid collecting cylinder 11 through the guidance of the conical porous plate 12. In the above process, the heat-conducting oil will release a large amount of heat and the gas inside it due to being dispersed. At the same time, the ultrasonic generator 4 operates to discharge the gas inside the heat-conducting oil in the liquid collecting cylinder 11 to make it float, and at the same time, the bubbles floating on the liquid surface at the top of the liquid collecting cylinder 11 are broken by the rotation of the bottom end of the anti-foaming slurry mechanism 6. Finally, the heat-conducting oil is heated or cooled through the liquid discharge temperature control mechanism 3 and then re-input into the die-casting mold for temperature control, avoiding the influence of the bubbles in the heat-conducting oil on the mold.

[0046] As Figure 1 and Figure 2 shown, the liquid discharge temperature control mechanism 3 includes a pump body 31, whose input end is communicated with the bottom of the liquid collecting cylinder 11. The output end of the pump body 31 is fixedly communicated with an electric control three-way valve 32. The two output ends of the electric control three-way valve 32 are respectively communicated with a heating chamber 33 and a cooling chamber 34, and the output ends of both are communicated with the same liquid discharge pipe 35;

[0047] With the above solution, the temperature sensor 21 on the return oil pipe 2 can detect the temperature of the returned heat-conducting oil and determine whether the temperature in the die-casting mold is too high, so as to control the electric three-way valve 32 to communicate with the heating chamber 33 or the cooling chamber 34, and finally input the heat-conducting oil after cooling or heating into the mold through the drain pipe 35.

[0048] As Figures 2 to 10 shown, the defoaming slurry mechanism 6 includes a main shaft 61 movably connected to the return oil pipe 2. A spline shaft 63 is spline-connected inside the main shaft 61. A cavity 631 is formed at the bottom end of the spline shaft 63. A crushing blade 62 is fixedly connected to the bottom end of the spline shaft 63. An adjusting component 64 for reducing the liquid surface pressure of the spline shaft 63 on the liquid surface of the liquid collecting cylinder 11 is symmetrically arranged inside the main shaft 61;

[0049] The bottom end of the spline shaft 63 extends into the liquid surface of the liquid collecting cylinder 11 and is buoyed by the liquid, enabling the crushing blade 62 to be above the liquid surface;

[0050] The adjusting component 64 includes a gear 641 movably connected inside the main shaft 61. A circular rack 642 meshing with the gear 641 is also vertically movably connected inside the main shaft 61;

[0051] Several groups of ring teeth capable of meshing with the gear 641 are vertically arranged in the middle of the spline shaft 63;

[0052] With the above solution, when the heat-conducting oil impacts the fan blade 7, it will drive the main shaft 61 and the spline shaft 63 to rotate, so that the crushing blade 62 rotates. At the same time, under the buoyancy of the cavity 631 and the balance force of the adjusting component 64, the crushing blade 62 will be able to fit the liquid surface of the heat-conducting oil in the liquid collecting cylinder 11, ensuring that when the oil input by the return oil pipe 2 and the oil output change of the liquid discharge temperature control mechanism 3, the crushing blade 62 can adapt to the change of the liquid surface in the liquid collecting cylinder 11 and can continuously crush the bubbles floating on the heat-conducting oil on the liquid collecting cylinder 11;

[0053] It should be noted that the circular rack 642 has a downward trend due to its own gravity. Through the meshing of the gear 641 and the spline shaft 63, the buoyancy force on the spline shaft 63 can be reduced to avoid the situation where the gravity of the spline shaft 63 is too large and the cavity 631 cannot provide sufficient buoyancy, resulting in the broken blade 62 rotating deep into the liquid surface and causing the liquid surface to flow and mix with bubbles; and since the bottom of the spline shaft 63 is cylindrical and the cavity 631 is part of the bottom of the spline shaft 63, when the main shaft 61 rotates to drive the spline shaft 63 to rotate, the bottom of the spline shaft 63 will also rotate in the part of the heat-conducting oil stored in the liquid collecting cylinder 11. Since the top section of the spline shaft 63 is a smooth circle and the projection of the spline shaft 63 in the vertical direction is the center of the liquid collecting cylinder 11, when the spline shaft 63 rotates, its influence on the liquid surface of the heat-conducting oil in the liquid collecting cylinder 11 can be ignored, avoiding the situation where the rotation of the spline shaft 63 drives the liquid surface in the liquid collecting cylinder 11 to generate vortices and affects the bubble-breaking effect of the broken blade 62.

[0054] As Figures 6 to 8 shown, a conical dispersion plate 611 is fixedly connected to the outer periphery of the main shaft 61 below the conical porous plate 12; a funnel 13 is also fixedly connected inside the separation tank 1 between the broken blade 62 and the conical dispersion plate 611, and there is a gap between the outer wall of the funnel 13 and the spline shaft 63;

[0055] With the above scheme, the heat-conducting oil is guided to the top of the broken blade 62 through the funnel 13 and flows down along the conical surface thereon, so as to drive the bubbles floating in the middle of the liquid collecting cylinder 11 from the center to the outside. Since the end speed of the broken blade 62 is relatively fast, the bubble-breaking effect of the broken blade 62 can be better.

[0056] As Figure 1 、 Figure 2 and Figure 4 shown, the condensation mechanism 5 includes a condensation box 51 located above the separation tank 1. The top of the separation tank 1 is fixedly connected and communicated with an exhaust pipe 55, and the top of the exhaust pipe 55 is communicated with the condensation box 51. Heat dissipation fins 52 are also arranged in the condensation box 51. The bottom of the condensation box 51 is an inclined surface, and the bottom of the inclined surface is fixedly connected and communicated with a return pipe 53. The bottom end of the return pipe 53 is communicated with the middle part of the separation tank 1. A pressure relief valve 54 is also arranged at the top of the condensation box 51; the bottom end of the return pipe 53 is in a V-shaped bending shape;

[0057] With the above solution, after the hot gas in the heat-conducting oil is separated, it will enter the condensation box 51 through the exhaust pipe 55 and be cooled by the heat-dissipating fins 52. At this time, the condensed liquid droplets generated by the cooling will flow back to the separation tank 1 through the condensation box 51 and the liquid return pipe 53 for circulation, avoiding the situation where part of the heat-conducting oil is vaporized and discharged, resulting in waste. At the same time, due to the V-shaped bending at the bottom of the liquid return pipe 53, part of the cooled heat-conducting oil can be stored in the bent part of the liquid return pipe 53, thus forming a communicating vessel structure, ensuring that the condensed liquid in the condensation box 51 can enter the separation tank 1 through the liquid return pipe 53, and at the same time blocking the gas in the separation tank 1 from entering the condensation box 51 through the liquid return pipe 53 to ensure that the gas-liquid pipelines can work separately and avoid mutual interference.

[0058] The working principle and usage process of the present invention:

[0059] The heat-conducting oil in the die-casting mold passes through the return oil pipe 2 and presses the spring baffle 24 downward. At this time, the heat-conducting oil will enter the separation tank 1 through the conical heat-conducting oil film formed between the inner wall of the output end of the return oil pipe 2 and the outer wall of the spring baffle 24, and impact the fan blade 7, causing it to drive the defoaming slurry mechanism 6 to rotate and separate the heat-conducting oil film. The dispersed heat-conducting oil will fall on the conical perforated plate 12 and drop into the liquid collection cylinder 11 through the guiding of the conical perforated plate 12. During the above process, the heat-conducting oil will release a large amount of heat and the gas inside it due to being dispersed. At the same time, the ultrasonic generator 4 operates to discharge the gas inside the heat-conducting oil in the liquid collection cylinder 11 to make it float, and at the same time, the bubbles floating on the liquid surface at the top of the liquid collection cylinder 11 are broken by the rotation at the bottom of the defoaming slurry mechanism 6. Finally, the heat-conducting oil is heated or cooled by the liquid discharge temperature control mechanism 3 and then re-input into the die-casting mold for temperature control;

[0060] When the fan blade 7 rotates, the fan blade 7 will drive the spline shaft 63 to rotate through the main shaft 61, so that the crushing blade 62 rotates. At the same time, under the buoyancy of the cavity 631 and the balance force of the adjusting component 64, the crushing blade 62 can fit the liquid surface of the heat-conducting oil in the liquid collection cylinder 11, ensuring that when the oil input by the return oil pipe 2 and the oil output by the liquid discharge temperature control mechanism 3 change, the crushing blade 62 can adapt to the change of the liquid surface in the liquid collection cylinder 11; at the same time, the setting of the funnel 13 guides the heat-conducting oil to the conical surface at the top of the crushing blade 62 and flows along it, so that the bubbles floating in the middle of the liquid collection cylinder 11 can be driven from the center to the outside. Since the speed of the end of the crushing blade 62 is faster, the crushing effect of the crushing blade 62 on the bubbles can be better;

[0061] After the hot gas in the heat-conducting oil is separated, it will enter the condensation box 51 along the exhaust pipe 55 and be cooled by the heat-dissipating fins 52. At this time, the condensed liquid droplets generated by the cooling will flow back to the separation tank 1 through the condensation box 51 and the liquid return pipe 53 for circulation, avoiding the situation where part of the heat-conducting oil is vaporized and discharged, which is a waste. At the same time, due to the V-shaped bending arrangement at the bottom of the liquid return pipe 53, part of the cooled heat-conducting oil can be stored in the bending part of the liquid return pipe 53, thus forming a communicating vessel structure, ensuring that the liquid condensed in the condensation box 51 can enter the separation tank 1 through the liquid return pipe 53, and at the same time blocking the gas in the separation tank 1 from entering the condensation box 51 through the liquid return pipe 53 to ensure that the gas-liquid pipelines can work separately and avoid interfering with each other.

[0062] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0063] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temperature control device for a die-casting mold, comprising a separation tank (1), a return oil pipe (2) and a liquid discharge temperature control mechanism (3), temperature sensors (21) are installed on both the return oil pipe (2) and the liquid discharge temperature control mechanism (3), and it is characterized in that: The output end of the return oil pipe (2) is communicated with the upper part of the separation tank (1). A conical porous plate (12) is fixedly connected to the middle of the separation tank (1), and there is a gap between the outer periphery of the conical porous plate (12) and the inner wall of the separation tank (1). A liquid collecting cylinder (11) for receiving the heat-conducting oil output from the return oil pipe (2) is arranged at the bottom of the separation tank (1), and the input end of the liquid discharge temperature control mechanism (3) is communicated with the bottom of the liquid collecting cylinder (11); A retaining skirt (22) is fixedly connected to the bottom end of the return oil pipe (2). A tension spring baffle (24) for blocking the output end of the return oil pipe (2) in the initial state is arranged on the return oil pipe (2), and an air hole (23) is opened at the top of the return oil pipe (2); An ultrasonic generator (4) is fixedly connected to the separation tank (1), and its generating end extends into the liquid collecting cylinder (11); An anti-foaming slurry mechanism (6) located inside the separation tank (1) is movably installed on the return oil pipe (2). The bottom end of the anti-foaming slurry mechanism (6) is located above the liquid level of the heat-conducting oil in the liquid collecting cylinder (11) and can be telescopically adjusted along with the liquid level height. A fan blade (7) is further arranged on the outer periphery of the anti-foaming slurry mechanism (6). When the heat-conducting oil in the return oil pipe (2) is output, it can impact the fan blade (7) and drive the anti-foaming slurry mechanism (6) to rotate; The anti-foaming slurry mechanism (6) includes a main shaft (61) movably connected to the return oil pipe (2). A spline shaft (63) is connected to the main shaft (61) by splines. A cavity (631) is opened at the bottom end of the spline shaft (63), and a crushing paddle (62) is fixedly connected to the bottom end of the spline shaft (63). A regulating component (64) for reducing the pressure of the spline shaft (63) on the liquid level of the liquid collecting cylinder (11) is symmetrically arranged inside the main shaft (61); The bottom end of the spline shaft (63) extends into the liquid level of the liquid collecting cylinder (11), and the crushing paddle (62) can be located above the liquid level under the buoyancy of the liquid; 2. The temperature control device for die-casting molds according to claim 1, characterized in that: A condensing mechanism (5) for collecting and condensing the gas in the separation tank (1) and then re-flowing it back into the separation tank (1) is fixedly communicated with the top of the separation tank (1); 3. The temperature control device for die-casting molds according to claim 1, characterized in that: The liquid discharge temperature control mechanism (3) includes a pump body (31) whose input end is communicated with the bottom of the liquid collecting cylinder (11). The output end of the pump body (31) is fixedly communicated with an electric control three-way valve (32). The two output ends of the electric control three-way valve (32) are respectively communicated with a heating chamber (33) and a cooling chamber (34), and the output ends of both are communicated with the same liquid discharge pipe (35); 4. The temperature control device for die-casting molds according to claim 1, characterized in that: The regulating component (64) includes a gear (641) movably connected to the inside of the main shaft (61), and a circular rack (642) meshing with the gear (641) is vertically and movably connected to the inside of the main shaft (61); A plurality of groups of ring teeth capable of meshing with the gear (641) are vertically arranged in the middle of the spline shaft (63); 5. The temperature control device for die-casting molds according to claim 1, characterized in that: A conical dispersion plate (611) located below the conical porous plate (12) is fixedly connected to the outer periphery of the main shaft (61); 6. The temperature control device for a die-casting mold according to claim 1, characterized in that: A funnel (13) located between the crushing paddle (62) and the conical dispersion plate (611) is further fixedly connected to the inside of the separation tank (1), and there is a gap between the funnel (13) and the outer wall of the spline shaft (63); 7. The temperature control device for die-casting molds according to claim 2, wherein: The condensation mechanism (5) includes a condensation box (51) located above the separation tank (1). The top of the separation tank (1) is fixedly communicated with an exhaust pipe (55), and the top of the exhaust pipe (55) is communicated with the condensation box (51). A heat dissipation fin (52) is also arranged in the condensation box (51). The bottom of the condensation box (51) is fixedly communicated with a liquid return pipe (53). The bottom end of the liquid return pipe (53) is communicated with the middle part of the separation tank (1). A pressure relief valve (54) is also arranged at the top of the condensation box (51).

8. The temperature control device for die-casting molds according to claim 7, wherein: The bottom of the condensation box (51) is an inclined surface, and the bottom of the inclined surface is communicated with the liquid return pipe (53).

9. The temperature control device for die-casting molds according to claim 7, characterized in that: The bottom end of the liquid return pipe (53) is in a V-shaped bent shape.

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