A high thermal conductive controllable magnesium alloy die-casting mold embedded with heat pipe array

Abstract

The application belongs to the technical field of non-ferrous metal die-casting moulds, and particularly relates to a high-thermal-conductivity controllable magnesium alloy die-casting mould with embedded heat pipe array, which comprises a mould shell; the mould shell is a rectangular structure with an embedded hollow groove; an upper sealing plate is rotatably connected to one side of the top of the mould shell, and a lower sealing plate is rotatably connected to one side of the bottom of the mould shell; a first thermal conduction pipe is embedded and installed on the side of the top of the mould shell away from the upper sealing plate; the mould shell serves as a bearing matrix; the upper sealing plate and the lower sealing plate are opened and closed by rotation; the first linkage plate and the second linkage plate are driven by the rotating screw rod to slide along the thermal conduction plate; the spacing is adjusted to assemble different size cavities in cooperation with the limiting plate; the first thermal conduction pipe and the second thermal conduction pipe are connected to a temperature control heat source to deliver heat to the thermal conduction assembly; the thermal conduction assembly transfers heat from the bottom of the thermal conduction plate; the temperature of the thermal conduction plate is controlled in sections; the temperature field of the cavity is balanced; and the controllable thermal conduction cooling of the magnesium alloy die-casting process is completed.

Description

Technical Field

[0001] This invention belongs to the field of non-ferrous metal die casting mold technology, and specifically relates to a high thermal conductivity controllable magnesium alloy die casting mold with an embedded heat pipe array. Background Technology

[0002] Magnesium alloys are widely used in the automotive, aerospace, and 3C electronics industries due to their low density, high specific strength, and excellent damping properties. Die casting is the main processing method for magnesium alloy components. During the die casting process, the uniformity of the mold temperature field and the cooling rate directly determine the grain structure, dimensional accuracy, and surface quality of the casting. Uneven temperature can easily lead to defects such as cold shuts, shrinkage cavities, and hot cracks.

[0003] A search revealed that Chinese Patent Publication No. CN218517671U discloses a metal die-casting mold that is easy to separate. The mold includes a base, an upper mold, and a lower mold. The upper mold is mounted on the upper end of the base, and the lower mold is mounted on the upper surface of the base. The upper mold includes a support rod, a groove, a spring, a round shaft, a fixing button, an air pump, an upper mold plate, a locking block, and a pressure table. The support rod is mounted on the upper surface of the base, the groove is formed inside the support rod and contains a spring, the round shaft is mounted on the side end of the support rod and has a fixing button at its top, the air pump is mounted at the top of the support rod, the upper mold plate is mounted in the middle of the round shaft and has a locking block on its lower surface, and the pressure table is mounted in the middle of the upper mold plate. The lower mold includes a mold groove, a locking groove, a lifting rod, a pressure plate, and a top plate. This die-casting mold, through the cooperation of the upper and lower molds, enables rapid molding and facilitates mold removal after molding, and is not easily deformed.

[0004] However, the equipment still has the following drawbacks: Although it can achieve rapid molding and facilitate mold removal after molding, and is not easily deformed, existing magnesium alloy die casting molds mostly use a single cooling water channel or fixed heat pipe structure. Not only is it difficult to achieve precise temperature control in different areas of the cavity according to the heat dissipation requirements, but it also cannot adapt to the rapid switching of cavities of various sizes, resulting in poor mold versatility, low production efficiency and limited casting yield. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a high thermal conductivity controllable magnesium alloy die-casting mold with an embedded heat pipe array, comprising a mold housing; the mold housing is a rectangular structure with a built-in hollow groove, an upper sealing plate is rotatably connected to one side of the top of the mold housing, and a lower sealing plate is rotatably connected to one side of the bottom of the mold housing, a first heat-conducting pipe is embedded and installed on the top side of the mold housing away from the upper sealing plate, a heat-conducting plate is horizontally arranged in the hollow groove of the mold housing, a first linkage plate and a second linkage plate are slidably attached to the heat-conducting plate, a limit plate is also provided on the outer wall of the heat-conducting plate near the first heat-conducting pipe, and the first linkage plate and the second linkage plate slide and adjust different distances on the heat-conducting plate for assembling cavities of different sizes on the top of the heat-conducting plate; The outer walls of the mold housing are each embedded with a second heat pipe. A heat-conducting component is installed in the hollow groove of the mold housing and at the bottom of the heat-conducting plate. The input end of one side of the heat-conducting component is connected to the first heat pipe, and the input end of the other side of the heat-conducting component is connected to the second heat pipe. Heat of different temperatures is delivered to the first heat pipe and the second heat pipe to regulate the heat in different areas of the heat-conducting component.

[0006] Furthermore, both ends of the heat-conducting plate are provided with protrusions, and a lead screw is rotatably connected between every two sets of protrusions. The lead screws are horizontally distributed on both sides of the heat-conducting plate, and the lead screws are threadedly connected to the first linkage plate and the second linkage plate. Both ends of the lead screws extend to the outer wall of the mold shell, and a handwheel is provided at each end of the lead screw.

[0007] Furthermore, the heat-conducting component includes six sets of four-way valves; the six sets of four-way valves are arranged in the same horizontal array, and the central axes of the six sets of four-way valves overlap and are attached to the bottom of the heat-conducting plate.

[0008] Furthermore, all six sets of four-way valves are interconnected through the first pipe body, and the central axis of the first pipe body coincides with the central axis of the six sets of four-way valves. First solenoid valves are embedded on both sides of the outer wall of the first pipe body, and the two sets of four-way valves on the side away from the first pipe body are interconnected with the second heat-conducting pipe.

[0009] Furthermore, each of the six sets of four-way valves has a second tube connected to its port on the side closest to the first heat-conducting pipe. A second solenoid valve is installed on the side wall of the second tube. The ends of the two sets of second tubes furthest from the four-way valves are connected to the other end of the first heat-conducting pipe.

[0010] Furthermore, each of the six sets of four-way valves has a third tube connected to its port on the side furthest from the first heat pipe, and a third solenoid valve is installed on the side wall of the third tube.

[0011] Furthermore, both the ends of the second and third pipe bodies, and the side furthest from the four-way valve, are connected to elbows, and the second pipe body, the third pipe body, and the elbows form a serpentine tubular structure.

[0012] Furthermore, the bottom of the first linkage plate, the second linkage plate, and the limiting plate are all provided with reserved slots, and the reserved slots are movably engaged with the outer walls of the first heat-conducting pipe, the second pipe body, and the third pipe body.

[0013] Furthermore, the bottom of the heat-conducting plate is embedded with the same number of upper positioning seats as the elbow. The bottom of the upper positioning seat is provided with a tapered slope that fits and connects to the top of the elbow. The bottom of the upper positioning seat is provided with a first cavity, and several sets of detection ends are embedded and installed at the bottom port of the first cavity. One side of each set of detection ends is fitted and connected to different positions on the outer wall of the elbow. A temperature sensor is also provided on the inner wall of the first cavity. The side of each set of detection ends away from the elbow is electrically connected to the temperature sensor.

[0014] Furthermore, a number of lower positioning seats, the same number as the upper positioning seats, are embedded in the outer wall of the lower sealing plate and on the side near the hollow groove. The top of the lower positioning seat is provided with a second cavity that communicates with the first cavity. A number of limiting grooves are provided at the port of the lower positioning seat on the side near the second cavity. The limiting grooves are all movably engaged with the bottom of the detection end.

[0015] The beneficial effects of this invention are: 1. The mold shell serves as the supporting base. Rotating the upper and lower sealing plates opens and closes the hollow groove. Rotating the screw drives the first and second linkage plates to slide along the heat-conducting plate. With the help of the limiting plate, the spacing can be adjusted to assemble cavities of different sizes. The first and second heat-conducting pipes are connected to the temperature-controlled heat source to transfer heat to the heat-conducting components. The heat-conducting components transfer heat from the bottom of the heat-conducting plate. The temperature of the heat-conducting plate is controlled in zones to balance the temperature field of the cavity and complete the controllable heat conduction and cooling of the magnesium alloy die-casting process.

[0016] 2. Mold preheating: The first heat pipe collects the heat required for mold preheating, the second heat pipe remains closed, and the six sets of four-way valves, the first solenoid valve, the second solenoid valve, and the third solenoid valve open simultaneously, so that the heat in the first heat pipe is transported to the bottom of the heat-conducting plate through the second pipe and the first pipe. The heat is then transferred upward through the heat-conducting plate to the hollow groove of the mold shell, so as to quickly preheat the cavities at different positions in the gap between the first linkage plate and the second linkage plate.

[0017] 3. Temperature difference control: After the first heat pipe stops delivering heat, the second heat pipe continues to deliver heat higher than that of the first heat pipe. By opening the first solenoid valves on both sides of the first pipe body in different directions and closing several sets of second solenoid valves or several sets of third solenoid valves on the same side, the heat delivered by the second heat pipe is diverted to the second or third pipe body through the four-way valve, and then delivered through the serpentine tubular structure formed by the elbows. This is used to isolate and transmit the heat between the first linkage plate and the second linkage plate, thereby creating different temperature differences in the cavity.

[0018] 4. Temperature detection and positioning: The tapered slope at the bottom of the upper positioning seat is fitted to the top of the elbow. Several sets of detection ends in the first cavity are fitted to different positions on the outer wall of the elbow to collect temperature signals and transmit them to the temperature sensor. The second cavity at the top of the lower positioning seat is connected to the first cavity. Several sets of limiting grooves are movably engaged at the bottom of the detection end to achieve accurate positioning of the pipeline and real-time temperature monitoring.

[0019] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of a high thermal conductivity controllable magnesium alloy die-casting mold according to an embodiment of the present invention is shown. Figure 1 ; Figure 2 A schematic diagram of the structure of a high thermal conductivity controllable magnesium alloy die-casting mold according to an embodiment of the present invention is shown. Figure 2 ; Figure 3 A schematic diagram of the structure of a high thermal conductivity controllable magnesium alloy die-casting mold according to an embodiment of the present invention is shown. Figure 3 ; Figure 4 A schematic diagram of the structure of the heat-conducting plate according to an embodiment of the present invention is shown. Figure 1 ; Figure 5 A schematic diagram showing the connection between the heat-conducting plate and the heat-conducting component according to an embodiment of the present invention is shown; Figure 6 A schematic diagram of the structure of the thermal conductive component according to an embodiment of the present invention is shown; Figure 7 A top view of the structure of the heat-conducting component according to an embodiment of the present invention is shown; Figure 8 A schematic diagram of the structure of the heat-conducting plate according to an embodiment of the present invention is shown. Figure 2 ; Figure 9 A schematic diagram of the sealing plate in an embodiment of the present invention is shown.

[0022] In the diagram: 1. Mold shell; 2. Upper sealing plate; 3. Lower sealing plate; 4. First heat-conducting pipe; 5. Heat-conducting plate; 6. First linkage plate; 7. Second linkage plate; 8. Limiting plate; 9. Heat-conducting component; 91. Four-way valve; 92. First pipe body; 93. First solenoid valve; 94. Second pipe body; 95. Second solenoid valve; 96. Third pipe body; 97. Elbow; 98. Third solenoid valve; 10. Second heat-conducting pipe; 11. Lead screw; 12. Reserved groove; 13. Upper positioning seat; 14. Conical slope; 15. First cavity; 16. Detection end; 17. Temperature sensor; 18. Lower positioning seat; 19. Second cavity; 20. Limiting groove. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] This invention provides a high thermal conductivity controllable magnesium alloy die-casting mold with an embedded heat pipe array, including a mold shell 1; exemplarily, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown.

[0025] The mold housing 1 is a rectangular structure with a built-in hollow groove. An upper sealing plate 2 is rotatably connected to the top side of the mold housing 1, and a lower sealing plate 3 is rotatably connected to the bottom side of the mold housing 1. A first heat-conducting pipe 4 is embedded in the top side of the mold housing 1 away from the upper sealing plate 2. A heat-conducting plate 5 is horizontally arranged in the hollow groove of the mold housing 1. A first linkage plate 6 and a second linkage plate 7 are slidably attached to the heat-conducting plate 5. A limit plate 8 is also provided on the outer wall of the heat-conducting plate 5 near the first heat-conducting pipe 4. The first linkage plate 6 and the second linkage plate 7 slide on the heat-conducting plate 5 to adjust different distances for assembling cavities of different sizes on the top of the heat-conducting plate 5. The outer walls of the mold housing 1 are each embedded with a second heat pipe 10. A heat-conducting component 9 is installed in the hollow groove of the mold housing 1 and at the bottom of the heat-conducting plate 5. The input end of one side of the heat-conducting component 9 is connected to the first heat pipe 4, and the input end of the other side of the heat-conducting component 9 is connected to the second heat pipe 10. Heat of different temperatures is delivered to the first heat pipe 4 and the second heat pipe 10 to regulate the heat in different areas of the heat-conducting component 9.

[0026] Furthermore, both ends of the heat-conducting plate 5 are provided with protrusions, and a lead screw 11 is rotatably connected between every two sets of protrusions. The lead screw 11 is horizontally distributed on both sides of the heat-conducting plate 5, and the lead screw 11 is threadedly connected to the first linkage plate 6 and the second linkage plate 7. Both ends of the lead screw 11 extend to the outer wall of the mold housing 1, and a handwheel is provided at each end of the lead screw 11.

[0027] Specifically, the mold shell 1 serves as the supporting base. Rotating the upper sealing plate 2 and the lower sealing plate 3 opens and closes the hollow groove. Rotating the screw 11 drives the first linkage plate 6 and the second linkage plate 7 to slide along the heat-conducting plate 5. With the help of the limiting plate 8, the limiting position is adjusted. Different sized cavities can be assembled. The first heat-conducting pipe 4 and the second heat-conducting pipe 10 are connected to the temperature-controlled heat source to transfer heat to the heat-conducting component 9. The heat-conducting component 9 transfers heat from the bottom of the heat-conducting plate 5, and the temperature of the heat-conducting plate 5 is controlled in zones to balance the temperature field of the cavity and complete the controllable heat conduction and cooling of the magnesium alloy die casting process.

[0028] The heat-conducting component 9 includes six sets of four-way valves 91; for example, such as Figure 6 and Figure 7 As shown.

[0029] The six sets of four-way valves 91 are arranged in the same horizontal array, and the central axes of the six sets of four-way valves 91 are aligned and connected to the bottom of the heat-conducting plate 5. The six sets of four-way valves 91 are interconnected through the first tube 92, and the central axis of the first tube 92 coincides with the central axis of the six sets of four-way valves 91. The outer walls of the first tube 92 are embedded with first solenoid valves 93. The two sets of four-way valves 91, on the side away from the first tube 92, are interconnected with the second heat-conducting pipe 10. The ports of the six sets of four-way valves 91 and the side closest to the first heat pipe 4 are all connected to a second pipe body 94. A second solenoid valve 95 is installed on the side wall of the second pipe body 94. The ends of the two sets of second pipe bodies 94 that are away from the four-way valves 91 are connected to the other end of the first heat pipe 4. The ports of the six sets of four-way valves 91, on the side away from the first heat pipe 4, are all connected to a third pipe body 96, and a third solenoid valve 98 is installed on the side wall of the third pipe body 96. The ends of the second pipe body 94 and the third pipe body 96, and the side away from the four-way valve 91, are connected to elbows 97. The second pipe body 94, the third pipe body 96 and the elbows 97 are spliced ​​together to form a serpentine tubular structure.

[0030] Specifically, the first heat pipe 4 is used to collect the heat required for mold preheating. By closing the second heat pipe 10 and opening several sets of four-way valves 91, the first solenoid valve 93, the second solenoid valve 95 and the third solenoid valve 98, the heat in the first heat pipe 4 is transported to the bottom of the heat-conducting plate 5, so that the heat can be transferred upward through the bottom of the heat-conducting plate 5 to the hollow groove of the mold shell 1, and the cavity at different positions in the gap between the first linkage plate 6 and the second linkage plate 7 is rapidly preheated. After the first heat pipe 4 is shut off from delivering heat, the heat delivered to the second heat pipe 10 is continuously increased to a higher temperature than that of the first heat pipe 4. Then, by opening the first solenoid valves 93 on both sides of the first tube body 92 in different directions, and closing several sets of second solenoid valves 95 or several sets of third solenoid valves 98 on the same side, the heat delivered from the second heat pipe 10 enters through the four-way valve 91 and is delivered to the direction of the second tube body 94 or the third tube body 96. The heat delivered from the first heat pipe 4 is diverted through the first solenoid valves 93 and 95 near the second tube body 94, or through the first solenoid valves 93 and 98 near the third tube body 96. This is used to isolate and transmit the heat between the first linkage plate 6 and the second linkage plate 7, forming different temperature differences within the cavity.

[0031] Furthermore, the bottom of the first linkage plate 6, the second linkage plate 7 and the limiting plate 8 are all provided with reserved grooves 12, and the reserved grooves 12 are movably engaged with the outer walls of the first heat-conducting pipe 4, the second pipe body 94 and the third pipe body 96.

[0032] Furthermore, the bottom of the heat-conducting plate 5 is embedded with the same number of upper positioning seats 13 as the elbow 97. The bottom of the upper positioning seat 13 is provided with a tapered slope 14 that fits and connects to the top of the elbow 97. The bottom of the upper positioning seat 13 is provided with a first cavity 15, and a number of detection ends 16 are embedded and installed at the bottom port of the first cavity 15. One side of each of the detection ends 16 is fitted and connected to different positions on the outer wall of the elbow 97. The inner wall of the first cavity 15 is also provided with a temperature sensor 17, and the side of each of the detection ends 16 away from the elbow 97 is electrically connected to the temperature sensor 17.

[0033] Furthermore, a number of lower positioning seats 18, the same number as the upper positioning seats 13, are embedded and installed on the outer wall of the lower sealing plate 3 and on the side near the hollow groove. The top of the lower positioning seat 18 is provided with a second cavity 19 that communicates with the first cavity 15. A number of limiting grooves 20 are provided at the port of the lower positioning seat 18 on the side near the second cavity 19. The number of limiting grooves 20 are all movably engaged with the bottom of the detection end 16.

[0034] Specifically, the first heat pipe 4 collects the heat required for mold preheating, the second heat pipe 10 remains closed, and the six sets of four-way valves 91, the first solenoid valve 93, the second solenoid valve 95 and the third solenoid valve 98 are opened simultaneously, so that the heat in the first heat pipe 4 is transported to the bottom of the heat-conducting plate 5 through the second pipe body 94 and the first pipe body 92. The heat is then transferred upward through the heat-conducting plate 5 to the hollow groove of the mold shell 1, so as to quickly preheat the cavities at different positions in the gap between the first linkage plate 6 and the second linkage plate 7. After the first heat pipe 4 stops delivering heat, the second heat pipe 10 continues to deliver heat higher than that of the first heat pipe 4. By opening the first solenoid valves 93 in different directions on both sides of the first pipe body 92 and closing several sets of second solenoid valves 95 or several sets of third solenoid valves 98 on the same side, the heat delivered by the second heat pipe 10 is diverted to the second pipe body 94 or the third pipe body 96 through the four-way valve 91, and then delivered through the serpentine tubular structure formed by the elbow 97. This is used to isolate and transmit the heat between the first linkage plate 6 and the second linkage plate 7, thereby forming different temperature differences in the cavity. Temperature detection and positioning: The tapered slope 14 at the bottom of the upper positioning seat 13 is fitted and connected to the top of the elbow 97. Several sets of detection ends 16 in the first cavity 15 are fitted to different positions on the outer wall of the elbow 97 to collect temperature signals and transmit them to the temperature sensor 17. The second cavity 19 at the top of the lower positioning seat 18 is connected to the first cavity 15. Several sets of limiting grooves 20 are movably engaged at the bottom of the detection ends 16 to achieve accurate positioning of the pipeline and real-time temperature monitoring.

[0035] The working principle of a high thermal conductivity controllable magnesium alloy die-casting mold with an embedded heat pipe array proposed in this invention is as follows: Step 1: Mold Preheating. The first heat pipe 4 collects the heat required for mold preheating. The second heat pipe 10 remains closed. The six sets of four-way valves 91, the first solenoid valve 93, the second solenoid valve 95, and the third solenoid valve 98 are opened simultaneously, so that the heat in the first heat pipe 4 is transported to the bottom of the heat-conducting plate 5 through the second pipe body 94 and the first pipe body 92. The heat is then transferred upward through the heat-conducting plate 5 to the hollow groove of the mold shell 1, so as to quickly preheat the cavities at different positions in the gap between the first linkage plate 6 and the second linkage plate 7. Step 2: Temperature difference control. After the first heat pipe 4 stops delivering heat, the second heat pipe 10 continues to deliver heat higher than that of the first heat pipe 4. By opening the first solenoid valves 93 in different directions on both sides of the first pipe body 92 and closing several sets of second solenoid valves 95 or several sets of third solenoid valves 98 on the same side, the heat delivered by the second heat pipe 10 is diverted to the second pipe body 94 or the third pipe body 96 through the four-way valve 91, and then delivered through the serpentine tubular structure formed by the elbow 97. This is used to isolate and transmit the heat between the first linkage plate 6 and the second linkage plate 7, thereby forming different temperature differences in the cavity. Step 3: Temperature detection and positioning. The tapered slope 14 at the bottom of the upper positioning seat 13 is attached to the top of the elbow 97. Several sets of detection ends 16 in the first cavity 15 are attached to different positions on the outer wall of the elbow 97 to collect temperature signals and transmit them to the temperature sensor 17. The second cavity 19 at the top of the lower positioning seat 18 is connected to the first cavity 15. Several sets of limiting grooves 20 are movably engaged at the bottom of the detection ends 16 to achieve accurate positioning of the pipeline and real-time temperature monitoring.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high thermal conductivity controllable magnesium alloy die-casting mold with an embedded heat pipe array, characterized in that: The mold housing (1) is a rectangular structure with a built-in hollow groove. An upper sealing plate (2) is rotatably connected to the top side of the mold housing (1), and a lower sealing plate (3) is rotatably connected to the bottom side of the mold housing (1). A first heat-conducting pipe (4) is embedded and installed on the top side of the mold housing (1) away from the upper sealing plate (2). A heat-conducting plate (5) is horizontally arranged in the hollow groove of the mold housing (1). A first linkage plate (6) and a second linkage plate (7) are slidably attached to the heat-conducting plate (5). A limit plate (8) is also provided on the outer wall of the heat-conducting plate (5) and on the side close to the first heat-conducting pipe (4). The first linkage plate (6) and the second linkage plate (7) slide and adjust different distances on the heat-conducting plate (5) for assembling cavities of different sizes on the top of the heat-conducting plate (5). The outer walls of the mold housing (1) are each embedded with a second heat pipe (10). A heat-conducting component (9) is installed in the hollow groove of the mold housing (1) and at the bottom of the heat-conducting plate (5). The input end of one side of the heat-conducting component (9) is connected to the first heat pipe (4), and the input end of the other side of the heat-conducting component (9) is connected to the second heat pipe (10). Heat of different temperatures is delivered to the first heat pipe (4) and the second heat pipe (10) to regulate the heat regulation of different areas in the heat-conducting component (9).

2. The high thermal conductivity controllable magnesium alloy die-casting mold with embedded heat pipe array according to claim 1, characterized in that: The ends of both sides of the heat-conducting plate (5) are provided with protrusions, and a lead screw (11) is rotatably connected between each two sets of protrusions. The lead screw (11) is horizontally distributed on both sides of the heat-conducting plate (5), and the lead screw (11) is threadedly connected to the first linkage plate (6) and the second linkage plate (7). Both ends of the lead screw (11) extend to the outer wall of the mold housing (1), and a handwheel is provided at the end of the lead screw (11).

3. The high thermal conductivity controllable magnesium alloy die-casting mold with embedded heat pipe array according to claim 1, characterized in that: The heat-conducting component (9) includes six sets of four-way valves (91); the six sets of four-way valves (91) are arranged in the same horizontal array, and the central axes of the six sets of four-way valves (91) overlap and are attached to the bottom of the heat-conducting plate (5).

4. The high thermal conductivity controllable magnesium alloy die-casting mold with embedded heat pipe array according to claim 3, characterized in that: The six sets of four-way valves (91) are all interconnected through the first tube (92), and the central axis of the first tube (92) coincides with the central axis of the six sets of four-way valves (91). The first solenoid valves (93) are embedded on both sides of the outer wall of the first tube (92), and the two sets of four-way valves (91) and the side away from the first tube (92) are interconnected with the second heat pipe (10).

5. The high thermal conductivity controllable magnesium alloy die-casting mold with embedded heat pipe array according to claim 4, characterized in that: The ports of the six sets of four-way valves (91) and the side closest to the first heat pipe (4) are all connected to a second pipe body (94). A second solenoid valve (95) is installed on the side wall of the second pipe body (94). The ends of the two sets of second pipe bodies (94) that are far from the four-way valves (91) are connected to the other end of the first heat pipe (4).

6. The high thermal conductivity controllable magnesium alloy die-casting mold with embedded heat pipe array according to claim 5, characterized in that: The ports of the six sets of four-way valves (91) and the side away from the first heat pipe (4) are all connected to a third pipe body (96), and a third solenoid valve (98) is installed on the side wall of the third pipe body (96).

7. The high thermal conductivity controllable magnesium alloy die-casting mold with embedded heat pipe array according to claim 6, characterized in that: The ends of the second pipe (94) and the third pipe (96) and the side away from the four-way valve (91) are connected to elbows (97). The second pipe (94), the third pipe (96) and the elbow (97) are spliced ​​together to form a serpentine tubular structure.

8. The high thermal conductivity controllable magnesium alloy die-casting mold with embedded heat pipe array according to claim 1, characterized in that: The bottom of the first linkage plate (6), the second linkage plate (7) and the limiting plate (8) are all provided with reserved grooves (12), and the reserved grooves (12) are movably engaged with the outer walls of the first heat-conducting pipe (4), the second pipe body (94) and the third pipe body (96).

9. The high thermal conductivity controllable magnesium alloy die-casting mold with embedded heat pipe array according to claim 1, characterized in that: The bottom of the heat-conducting plate (5) is embedded with an upper positioning seat (13) of the same number as the elbow (97). The bottom of the upper positioning seat (13) is provided with a conical slope (14) that fits and connects to the top of the elbow (97). The bottom of the upper positioning seat (13) is provided with a first cavity (15), and a number of detection ends (16) are embedded and installed at the bottom port of the first cavity (15). One side of each of the detection ends (16) is fitted and connected to the outer wall of the elbow (97) at different positions. The inner wall of the first cavity (15) is also provided with a temperature sensor (17). The side of each of the detection ends (16) away from the elbow (97) is electrically connected to the temperature sensor (17).

10. The high thermal conductivity controllable magnesium alloy die-casting mold with embedded heat pipe array according to claim 1, characterized in that: A number of lower positioning seats (18) are embedded in the outer wall of the lower sealing plate (3) and on the side near the hollow groove. The same number of lower positioning seats (13) are installed. The top of the lower positioning seat (18) is provided with a second cavity (19) that communicates with the first cavity (15). A number of limiting grooves (20) are provided on the side of the lower positioning seat (18) near the second cavity (19). The limiting grooves (20) are all movably engaged with the bottom of the detection end (16).

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