A cooling structure for a magnesium alloy semi-solid injection molding die

Abstract

This utility model discloses a cooling structure for a magnesium alloy semi-solid injection molding mold, relating to the field of mold forming technology. It includes a base frame, with a heat dissipation device fixedly installed on the top of the base frame, and the mold body placed inside the heat dissipation device. This utility model, employing the above structure, achieves fully automated transfer of the mold body from the molding station to the heat dissipation station during use by setting a third motor, lead screw, slider, and connecting components such as a first motor, second motor, and mounting block for the pick-and-place mechanism. This eliminates the need for direct manual contact with the high-temperature mold and allows for mold flipping and disassembly operations driven by the motor, simplifying the operation process. This avoids the risk of burns caused by manual contact and improves production efficiency, solving the problem of existing devices requiring manual mold handling, which is cumbersome and prone to burns.

Description

Technical Field

[0001] This utility model belongs to the field of mold forming technology, and specifically relates to a cooling structure for a magnesium alloy semi-solid injection molding mold. Background Technology

[0002] Magnesium alloy semi-solid injection molding molds are specialized molds used in the semi-solid injection molding process of magnesium alloys. They mainly consist of a cavity, core, gating system, cooling system, and ejection mechanism. The cavity and core together form the molding part, giving the magnesium alloy semi-solid slurry the final product shape. The gating system is responsible for smoothly introducing the semi-solid slurry into the cavity. The cooling system accelerates the solidification speed of the molded part by introducing coolant, ensuring product quality. The ejection mechanism is used to remove the product from the mold after molding. This mold must withstand the high pressure and specific temperature of the semi-solid slurry. It is made of high-temperature resistant, high-strength mold steel, enabling efficient and precise molding of magnesium alloy parts, and is widely used in the automotive, electronics, and other fields.

[0003] Existing magnesium alloy semi-solid injection molding molds require the mold to be removed from the worktable after use. The mold is still hot after use, making it inconvenient for users to remove it immediately. They need to wait for it to cool down, which is time-consuming and results in low work efficiency.

[0004] Chinese patent CN213033623U discloses a magnesium alloy semi-solid injection molding mold, comprising a mold body, an outer sleeve of a collar, and a handwheel fitted around the collar. A gap exists between the collar and the handwheel, and heat insulation plates are fixed to both sides of the collar and handwheel. The handwheel is hollow, and its inner wall has evenly distributed heat dissipation fins on both the upper and lower sides. Through holes are opened on both sides of the handwheel, and rings are fixed within these holes. Water pipes are rotatably connected to the rings, with the ends of the water pipes extending out of the rings. A mounting plate is fixed to the bottom of the mold body. This invention can cool the handwheel, preventing discomfort caused by excessive temperature when the user touches it, and also prevents the user from touching the hot mold body while holding the handwheel, facilitating heat dissipation from the mold body.

[0005] While the aforementioned device provides some heat dissipation during application, it lacks the function of utilizing the water resources after heat exchange. Furthermore, the absence of a heat recovery structure leads to heat waste. Additionally, the mold handling during operation is cumbersome and prone to errors, such as touching the mold before it has fully cooled, potentially causing burns. Therefore, the device has certain defects and shortcomings, necessitating design improvements. Utility Model Content

[0006] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a cooling structure for a magnesium alloy semi-solid injection molding die to solve the problems raised in the background art.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0008] A cooling structure for a magnesium alloy semi-solid injection molding mold includes a base frame, a heat dissipation device fixedly installed on the top of the base frame, a mold body placed inside the heat dissipation device, a pick-and-place mechanism fixedly installed in the middle of the side of the base frame away from the heat dissipation device, a connecting component provided on the top of the pick-and-place mechanism, and the pick-and-place mechanism connected to the upper end of one side of the mold body through the connecting component.

[0009] The heat dissipation device includes a mold base, the mold body is placed inside the mold base, the surface of the mold body is in close contact with the inner wall of the mold base, a heat conduction mechanism is fixedly installed on the outer side of the mold base, and a heat circulation mechanism is fixedly connected to the outer side of the heat conduction mechanism.

[0010] As a preferred technical solution, the picking and placing mechanism includes a guide rail, which is fixedly installed on the middle of one side of the base frame. A third motor is fixedly installed at the bottom of the guide rail. A lead screw is fixedly installed through the output end of the third motor and passes through the guide rail. The lead screw is rotatably connected to the inside of the guide rail. A slider is threadedly connected to the outer surface of the lead screw. The slider is slidably connected to the inside of the guide rail. A connecting frame is fixedly installed on the top of the slider. The connecting assembly is fixedly installed on the top of the connecting frame.

[0011] As a preferred technical solution, the connecting assembly includes a mounting sleeve and a mounting rail. The mounting sleeve is fixedly installed on the top of the connecting frame. A first motor is fixedly installed inside the mounting sleeve. A fixing seat is fixedly installed at the output end of the first motor. A second motor is fixedly installed on the side of the fixing seat near the base frame. A mounting block is fixedly installed at the output end of the second motor. The mounting rail is fixedly installed on the upper side of one side of the mold body. The mounting block is inserted into the inner side of the mounting rail. Mounting screws are threaded to both sides of the mounting rail. The ends of the mounting screws pass through the mounting rail and are threaded to the mounting block. The mounting screws are configured as hand-tightening screws.

[0012] As a preferred technical solution, a base plate is fixedly installed at the bottom of the base frame, and mounting holes are provided at the four corners of the base plate, and the mounting holes are countersunk holes.

[0013] As a preferred technical solution, the heat conduction mechanism includes a hollow heat conduction sleeve, which is fixedly installed on the outside of the mold base. Connecting pipes are fixedly installed on the upper end of the side away from the pick-and-place mechanism and the lower end of the side away from the pick-and-place mechanism. The heat circulation mechanism is fixedly installed on the outside of the connecting pipes.

[0014] As a preferred technical solution, the heat circulation mechanism includes a tank body, and an installation groove is provided on the upper end of the side of the tank body near the base frame. A circulation pump is fixedly installed inside the installation groove. The input end of the circulation pump is connected to the connecting pipe at the upper end of the hollow heat-conducting sleeve, and the bottom of the tank body is connected to the connecting pipe at the lower end of the hollow heat-conducting sleeve.

[0015] As a preferred technical solution, an external water pipe is fixedly installed on the top of the tank, and a drain pipe is fixedly installed on the bottom of the tank. Both the drain pipe and the external water pipe are equipped with solenoid valves.

[0016] In summary, the present invention has the following main advantages:

[0017] First, during the application of this technical solution, by setting up a hollow heat-conducting sleeve with a heat-conducting mechanism and a tank and circulation pump with a heat circulation mechanism, the hollow heat-conducting sleeve can efficiently absorb the heat of the mold body during use. The circulation pump drives the coolant to circulate in the system, and the tank collects the coolant carrying heat. This coolant can be transported to other heat-requiring equipment through external pipelines for secondary use, thereby achieving the effect of fully recovering and utilizing heat and reducing energy waste. This solves the problem that the existing device lacks a heat recovery structure, resulting in the loss of heat during the mold heat dissipation process.

[0018] Secondly, during the application of this technical solution, by setting a third motor, lead screw, slider, and connecting components such as the first motor, second motor, and mounting block of the pick-and-place mechanism, the mold body can be automatically transferred from the molding station to the heat dissipation station during use. There is no need for manual direct contact with the high-temperature mold, and the mold can be flipped and disassembled by motor drive, which simplifies the operation process. This achieves the effect of avoiding the risk of burns caused by manual contact and improving production efficiency. It solves the problem that the existing device requires manual pick-and-place of molds, which is cumbersome and prone to burn accidents. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a bottom view of the structure of this utility model;

[0021] Figure 3 This is a side view of the extended state of the picking and placing mechanism of this utility model;

[0022] Figure 4 This is a top view of the extended state of the picking and placing mechanism of this utility model;

[0023] Figure 5 This is a utility model Figure 4A magnified structural diagram at point A.

[0024] Reference numerals: 1. Base frame; 2. Heat dissipation device; 21. Mold base; 22. Heat conduction mechanism; 221. Hollow heat conduction sleeve; 222. Connecting pipe; 23. Heat circulation mechanism; 231. Tank; 232. Mounting groove; 233. Circulation pump; 234. External water pipe; 235. Drain pipe; 326. Solenoid valve; 3. Picking and placing mechanism; 31. Guide rail; 32. Third motor; 33. Lead screw; 34. Slider; 35. Connecting frame; 4. Mold body; 5. Mounting hole; 6. Connecting assembly; 61. Mounting sleeve; 62. Mounting rail; 63. First motor; 64. Fixed base; 65. Second motor; 66. Mounting block; 67. Mounting screw; 7. Base plate. Detailed Implementation

[0025] Example

[0026] refer to Figures 1 to 5 The cooling structure of a magnesium alloy semi-solid injection molding mold in this embodiment includes a base frame 1, a heat dissipation device 2 fixedly installed on the top of the base frame 1, a mold body 4 placed inside the heat dissipation device 2, a pick-and-place mechanism 3 fixedly installed in the middle of the side of the base frame 1 away from the heat dissipation device 2, a connecting component 6 provided on the top of the pick-and-place mechanism 3, and the pick-and-place mechanism 3 connected to the upper end of one side of the mold body 4 through the connecting component 6.

[0027] The heat dissipation device 2 includes a mold base 21, with the mold body 4 placed inside the mold base 21. The surface of the mold body 4 is in contact with the inner wall of the mold base 21. A heat conduction mechanism 22 is fixedly installed on the outer side of the mold base 21, and a heat circulation mechanism 23 is fixedly connected to the outer side of the heat conduction mechanism 22. During the application of this device, after the mold body 4 completes its work, the pick-and-place mechanism 3 is connected to the mold body 4 through the connecting component 6 and moves it into the mold base 21 of the heat dissipation device 2. The surface of the mold body 4 is in contact with the inner wall of the mold base 21. The heat conduction mechanism 22 absorbs the heat transferred from the mold base 21 to the mold body 4, and the heat circulation mechanism 23 cools it down. The liquid circulates within the heat conduction mechanism 22, continuously carrying away heat to cool the mold body 4. The pick-and-place mechanism 3 can remove the cooled mold body 4 from the mold base 21, completing the entire cooling process. It can be seen that during use, the heat dissipation device 2 is in close contact with the mold body 4, resulting in high heat conduction efficiency. The heat circulation mechanism 23 can continuously cool the mold, ensuring a stable cooling effect. The pick-and-place mechanism 3 automatically moves the mold body 4 through the connecting component 6, reducing manual intervention. The coordinated work of each structure makes the mold cooling process efficient and orderly, improving the continuity and reliability of the overall operation and meeting the needs of rapid mold cooling and automated operation.

[0028] refer to Figures 1-4A base plate 7 is fixedly installed at the bottom of the base frame 1. Mounting holes 5 are provided at each of the four corners of the base plate 7. These mounting holes 5 are countersunk holes. During application, the base plate 7 at the bottom of the base frame 1 is fixedly connected to the base frame 1. The entire device is fixedly installed through the mounting holes 5 at the four corners of the base plate 7. During installation, bolts pass through the countersunk holes 5 and are connected and fixed to the ground or workbench surface. The countersunk holes allow the bolt heads to be embedded in the holes, preventing the bolt heads from protruding from the surface of the base plate 7. The working principle is to distribute the weight of the base frame 1 and the upper structure by utilizing the load-bearing capacity of the base plate 7. The bolts connected through the mounting holes 5 fix the entire device in a preset position, preventing shaking or displacement during use. The advantages are that the base plate 7 increases the contact area between the base frame 1 and the mounting surface, improving overall stability; the countersunk hole design ensures the surface of the base plate 7 is flat, preventing the bolt heads from obstructing surrounding operations, while also enhancing the firmness of the bolt connection, ensuring structural stability during mold handling, heat dissipation, and other operations.

[0029] refer to Figures 1-5The picking and placing mechanism 3 includes a guide rail 31, which is fixedly installed on the middle of one side of the base frame 1. A third motor 32 is fixedly installed at the bottom of the guide rail 31. A lead screw 33 is fixedly installed through the guide rail 31 at the output end of the third motor 32. The lead screw 33 is rotatably connected to the inside of the guide rail 31. A slider 34 is threadedly connected to the outer surface of the lead screw 33. The slider 34 is slidably connected to the inside of the guide rail 31. A connecting frame 35 is fixedly installed on the top of the slider 34. A connecting assembly 6 is fixedly installed on the top of the connecting frame 35. The connecting assembly 6 includes a mounting sleeve 61 and a mounting bracket 62. The mounting rail 62 and mounting sleeve 61 are fixedly installed on the top of the connecting frame 35. The first motor 63 is fixedly installed inside the mounting sleeve 61. The output end of the first motor 63 is fixedly installed with a fixing seat 64. The fixing seat 64 is fixedly installed with a second motor 65 on the side near the base frame 1. The output end of the second motor 65 is fixedly installed with a mounting block 66. The mounting rail 62 is fixedly installed on the upper side of one side of the mold body 4. The mounting block 66 is inserted into the inner side of the mounting rail 62. Both sides of the mounting rail 62 are threaded with mounting screws 67. The end of the mounting screw 67 passes through... The mounting rail 62 and mounting block 66 are threaded together. The mounting screw 67 is a hand-tightening screw. During the application of this device, when the pick-and-place mechanism 3 is working, the third motor 32 at the bottom of the guide rail 31 starts, and the output end drives the lead screw 33 that passes through the guide rail 31 to rotate. The slider 34, which is threaded to the lead screw 33, slides along the inside of the guide rail 31. The connecting bracket 35 at the top of the slider 34 moves with the slider 34. The connecting component 6 at the top of the connecting bracket 35 moves synchronously. In the connecting component 6, the first motor 63 inside the mounting sleeve 61 drives the fixed seat 64 to rotate. The second motor 65 on one side of the mold body 4 drives the mounting block 66 to rotate, so that the mounting block 66 is inserted into the inner side of the mounting rail 62 on one side of the mold body 4. The hand-tightening mounting screws 67 on both sides of the mounting rail 62 are tightened, and their ends pass through the mounting rail 62 and are threaded to the mounting block 66 to achieve fixation. The advantage is that the third motor 32 achieves stable transfer through the screw 33 and slider 34 structure, the first motor 63 and the second motor 65 adjust the angle of the mounting block 66 to ensure precise docking, and the hand-tightening screws facilitate quick loading and unloading. Overall, it reduces manual intervention and improves operation efficiency and safety.

[0030] refer to Figures 1-4The heat conduction mechanism 22 includes a hollow heat conduction sleeve 221, which is fixedly installed on the outside of the mold base 21. Connecting pipes 222 are fixedly installed on the upper end of the side of the hollow heat conduction sleeve 221 away from the pick-and-place mechanism 3 and on the lower end of the side away from the pick-and-place mechanism 3. The heat circulation mechanism 23 is fixedly installed on the outside of the connecting pipes 222. The heat circulation mechanism 23 includes a tank 231. An installation groove 232 is provided on the upper end of the side of the tank 231 near the base frame 1. A circulation pump 233 is fixedly installed inside the installation groove 232. The input end of the circulation pump 233 and the middle... The upper end of the hollow heat-conducting sleeve 221 is connected to the connecting pipe 222, and the bottom of the tank 231 is connected to the lower end of the hollow heat-conducting sleeve 221. An external water pipe 234 is fixedly installed on the top of the tank 231, and a drain pipe 235 is fixedly installed on the bottom of the tank 231. Both the drain pipe 235 and the external water pipe 234 are equipped with solenoid valves 326. During the application of this device, the hollow heat-conducting sleeve 221 of its heat-conducting mechanism 22 is fixed to the outside of the mold base 21 to absorb the heat transferred by the mold base 21. In the heat circulation mechanism 23... A circulation pump 233 is installed in a mounting groove 232 on the upper side of a tank 231. Its input end is connected to a connecting pipe 222 at the upper end of a hollow heat-conducting sleeve 221, and the bottom of the tank 231 is connected to a connecting pipe 222 at the lower end of the hollow heat-conducting sleeve 221. After the circulation pump 233 starts, it pumps the coolant in the tank 231 into the hollow heat-conducting sleeve 221. After absorbing heat, the coolant flows back to the tank 231, forming a circulation. An external water pipe 234 at the top of the tank 231 replenishes the coolant, and a drain pipe 235 at the bottom discharges waste liquid. Both are equipped with solenoid valves. The 326 control valve has the advantages of increasing the heat exchange area through the hollow heat-conducting sleeve 221, ensuring stable coolant circulation through the circulating pump 233, and precisely controlling the liquid flow through the solenoid valve 326. This overall system achieves efficient heat exchange and can quickly replace the cooling water inside the tank 231 when the internal temperature rises and the tank loses its heat dissipation capacity. The cooled hot water can be discharged through the drain pipe 235 for easy utilization. During use, the drain pipe 235 can be connected to an external hot water container for easy collection and utilization of hot water, ensuring a continuous and stable cooling effect.

[0031] Operating principle and advantages: During the application of this device, after the injection molding operation is completed in the mold body 4, the pick-and-place mechanism 3 is activated. The third motor 32 outputs torque to drive the lead screw 33 in the guide rail 31 to rotate. The slider 34, which is threadedly connected to the lead screw 33, slides along the inner wall of the guide rail 31. The connecting frame 35 on the top of the slider 34 moves synchronously with the slider 34. The connecting component 6 on the top of the connecting frame 35 moves to one side of the mold body 4. The first motor 63 drives the fixed seat 64 to rotate around its own axis to adjust the spatial orientation of the mounting block 66. The second motor 65 drives the mounting block 66 to rotate to an angle that matches the mounting rail 62. The mounting block 66 is precisely inserted into the inner side of the mounting rail 62. The hand-tightened mounting screws 67 on both sides of the mounting rail 62 are tightened, so that the mounting screws... The end of the 67 extends through the mounting rail 62 and is threadedly connected to the mounting block 66, thus securing the connecting component 6 to the mold body 4. Subsequently, the third motor 32 rotates in reverse, driving the mold body 4 to move horizontally via the lead screw 33, slider 34, and connecting bracket 35, smoothly transferring it to the inside of the mold seat 21 of the heat dissipation device 2. The mold body 4 is placed inside the mold seat 21, with its outer surface tightly fitted to the inner wall of the mold seat 21. The heat conduction mechanism 22 on the outside of the mold seat 21 begins to operate, and the hollow heat conduction sleeve 221 absorbs the heat from the mold body 4 through the mold seat 21. The circulation pump 233 of the heat circulation mechanism 23 starts, pumping the coolant from the bottom of the tank 231 into the lower end of the hollow heat conduction sleeve 221 through the connecting pipe 222. The coolant then circulates through the hollow heat conduction sleeve. During the internal flow of the sleeve 221, heat is fully absorbed, and then the coolant flows back to the tank 231 from the upper connecting pipe 222, forming a continuous heat exchange cycle. The external water pipe 234 at the top of the tank 231 is used to replenish the coolant in the tank 231, and the drain pipe 235 at the bottom is used to discharge the waste liquid. The solenoid valve 326 on the external water pipe 234 and the drain pipe 235 controls the quantitative replenishment of coolant and the discharge of waste liquid through on / off control. The waste liquid has a certain temperature, and at this time, the high-temperature waste liquid can be used for workers to wash or for other purposes in the factory workshop. After cooling is completed, the third motor 32 runs again, driving the lead screw 33 to drive the slider 34 to slide. The sliding of the slider 34 drives the connecting frame 35 to move upward. The upward movement of the connecting frame 35 is carried by the connecting assembly 6. The moving mold body 4 is pulled out from inside the mold base 21. At this time, the first motor 63 is started, which drives the fixed seat 64 on its top to rotate. The rotation of the fixed seat 64 drives the second motor 65 to move outward, thereby moving the mold body 4 to the outer area. The second motor 65 is started to run, which drives the mold body 4 to flip to an inclined state, so as to facilitate the automatic removal of the mold body 4 and the complete separation of the molded workpiece inside. When the mold body 4 needs to be removed, the mounting screw 67 is manually turned to move it outward, which can release the connection between the mounting rail 62 and the mounting block 66 and remove the mounting rail 62 from the mounting block 66. The bottom plate 7 at the bottom of the base frame 1 is connected to the external fixed surface through the countersunk mounting holes 5 at the four corners to ensure that the overall structure remains stable during operation.

[0032] During the application of this device, it addresses the problem of heat waste caused by the lack of heat recovery structure in existing devices. This technical solution achieves efficient circulation and absorption of heat from the mold body 4 through the coordinated operation of the heat conduction mechanism 22 and the heat circulation mechanism 23. The tank 231, as a heat carrier storage container, can centrally collect coolant carrying a large amount of heat. This hot coolant can be transported to other heat-requiring equipment through external pipelines, facilitating the secondary utilization of heat and significantly reducing heat waste. This fundamentally solves the problem of heat waste. For the problem of existing devices requiring manual mold handling, which is cumbersome and prone to burns, this technical solution uses an automated transfer system composed of the handling mechanism 3 and the connecting component 6 to achieve fully automated transfer of the mold body 4 from the molding station to the heat dissipation station. There is no need for direct contact between humans and the high-temperature mold, completely avoiding the risk of burns caused by human error. At the same time, it simplifies the complex process of traditional manual handling and significantly improves production efficiency.

[0033] During use, the guide rail 31 provides precise sliding guidance for the slider 34, and the fit clearance between its inner wall and the slider 34 is precision machined to ensure the straightness and stability of the moving trajectory of the connecting frame 35; the first motor 63 and the second motor 65 coordinate to adjust the spatial posture of the mounting block 66 through rotational movements in different directions, so that the mounting block 66 and the mounting rail 62 can be precisely connected, ensuring the reliability of the connection; the hand-tightening mounting screw 67 adopts an anti-slip texture design, which makes it easy for operators to manually operate to fix or disassemble the connecting component 6 and the mold body 4 without the need for additional tools; the hollow heat-conducting sleeve 221 is made of high thermal conductivity material, and its inner wall fits tightly with the outer wall of the mold seat 21, increasing the contact area with the mold seat 21 and effectively improving the heat conduction efficiency; the circulating pump 233 provides a stable liquid delivery pressure to ensure that the coolant maintains the set flow rate in the circulation pipeline, ensuring the heat exchange effect; the base plate 7 is made of high-strength plate, and the countersunk mounting holes 5 at the four corners can be fixed to the ground or workbench with bolts to ensure that the whole device does not shake during operation and is firmly and reliably installed;

[0034] During the application of this device, the hollow heat-conducting sleeve 221 has an inner diameter of 150-200mm and a length of 300-500mm to match the mold base 21; the connecting pipe 222 has a diameter of 20-30mm; the tank 231 has a volume of 50-100L and a height of 400-600mm; the mounting hole 5 has a diameter of 12-16mm and a countersunk hole depth of 8-10mm; the lead screw 33 has a diameter of 16-20mm and a length of 300-500mm; the slider 34 has a boss width of 30-40mm, and the guide rail 31 has a convex cavity width that matches it. The electronic components are as follows: the first motor 63 and the second motor 65 are 60ST-M00630 servo motors; the third motor 32 is an 86BYG250H stepper motor; the circulating pump 233 is an ISG50-160; the solenoid valve 326 is a 2W-160-15; and the controller is a PLC. The S7-1200 is installed on the upper side of the base frame 1. The electronic components are connected to the controller via wires and powered by 380V three-phase AC power. The controller is connected to 220V AC power and then converted to provide the appropriate voltage for each component.

Claims

1. A cooling structure for a magnesium alloy semi-solid injection molding die, characterized in that: Includes a base frame (1), a heat dissipation device (2) is fixedly installed on the top of the base frame (1), a mold body (4) is placed inside the heat dissipation device (2), a pick-and-place mechanism (3) is fixedly installed in the middle of the side of the base frame (1) away from the heat dissipation device (2), a connecting component (6) is provided on the top of the pick-and-place mechanism (3), and the pick-and-place mechanism (3) is connected to the upper end of one side of the mold body (4) through the connecting component (6); The heat dissipation device (2) includes a mold base (21), the mold body (4) is placed inside the mold base (21), the surface of the mold body (4) is attached to the inner wall of the mold base (21), a heat conduction mechanism (22) is fixedly installed on the outside of the mold base (21), and a heat circulation mechanism (23) is fixedly connected to the outside of the heat conduction mechanism (22).

2. The cooling structure for a magnesium alloy semi-solid injection molding die according to claim 1, characterized in that: The picking and placing mechanism (3) includes a guide rail (31), which is fixedly installed on the middle of one side of the base frame (1). A third motor (32) is fixedly installed at the bottom of the guide rail (31). A lead screw (33) is fixedly installed through the guide rail (31) at the output end of the third motor (32). The lead screw (33) is rotatably connected to the inside of the guide rail (31). A slider (34) is threadedly connected to the outer surface of the lead screw (33). The slider (34) is slidably connected to the inside of the guide rail (31). A connecting frame (35) is fixedly installed on the top of the slider (34). The connecting component (6) is fixedly installed on the top of the connecting frame (35).

3. The cooling structure for a magnesium alloy semi-solid injection molding die according to claim 2, characterized in that: The connecting assembly (6) includes a mounting sleeve (61) and a mounting rail (62). The mounting sleeve (61) is fixedly installed on the top of the connecting frame (35). A first motor (63) is fixedly installed inside the mounting sleeve (61). A fixing seat (64) is fixedly installed at the output end of the first motor (63). A second motor (65) is fixedly installed on the side of the fixing seat (64) near the base frame (1). A mounting block (66) is fixedly installed at the output end of the second motor (65). The mounting rail (62) is fixedly installed on the upper side of one side of the mold body (4). The mounting block (66) is inserted into the inner side of the mounting rail (62). Both sides of the mounting rail (62) are threaded with mounting screws (67). The end of the mounting screw (67) passes through the mounting rail (62) and the mounting block (66) and is threadedly connected. The mounting screw (67) is a hand-tightening screw.

4. The cooling structure for a magnesium alloy semi-solid injection molding die according to claim 1, characterized in that: The base frame (1) is fixedly installed with a base plate (7), and mounting holes (5) are provided at the four corners of the base plate (7). The mounting holes (5) are countersunk holes.

5. The cooling structure for a magnesium alloy semi-solid injection molding die according to claim 1, characterized in that: The heat conduction mechanism (22) includes a hollow heat conduction sleeve (221), which is fixedly installed on the outside of the mold base (21). A connecting pipe (222) is fixedly installed on the upper end of the side away from the pick-and-place mechanism (3) and the lower end of the side away from the pick-and-place mechanism (3). The heat circulation mechanism (23) is fixedly installed on the outside of the connecting pipe (222).

6. The cooling structure for a magnesium alloy semi-solid injection molding die according to claim 5, characterized in that: The heat circulation mechanism (23) includes a tank (231). The upper end of the tank (231) near the base frame (1) is provided with an installation groove (232). A circulation pump (233) is fixedly installed inside the installation groove (232). The input end of the circulation pump (233) is connected to the connecting pipe (222) at the upper end of the hollow heat-conducting sleeve (221). The bottom of the tank (231) is connected to the connecting pipe (222) at the lower end of the hollow heat-conducting sleeve (221).

7. The cooling structure for a magnesium alloy semi-solid injection molding die according to claim 6, characterized in that: An external water pipe (234) is fixedly installed on the top of the tank (231), and a drain pipe (235) is fixedly installed on the bottom of the tank (231). Both the drain pipe (235) and the external water pipe (234) are equipped with solenoid valves (326).

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