Magnesium alloy semi-solid injection molding device

Abstract

The application discloses a magnesium alloy semi-solid injection molding device, which comprises a hopper, a temperature control mechanism is arranged outside the hopper, the temperature control mechanism comprises a feeding pipe, a feeding channel is arranged at the center of the feeding pipe, the discharging end of the hopper is in through communication with the inside of the feeding channel, the body of the feeding pipe is respectively provided with an annular heat exchange cavity and a heating cavity, the heat exchange cavity and the heating cavity are coaxial with the feeding channel and are sequentially arranged outward along the radial direction of the feeding channel, a magnetic induction coil is arranged in the inside of the heating cavity, and main pipes are arranged on both sides of the outside of the feeding pipe, and relate to the technical field of magnesium alloy molding devices, solve the problem that, in the use process of the existing magnesium alloy injection molding device, the contact time of circulating hot air and magnesium alloy materials is short, and heat loss exists in the circulation process, so that the problem of insufficient heating and heat loss still exists in the actual heating process of the magnesium alloy materials.

Description

Technical Field

[0001] This invention relates to the field of magnesium alloy forming equipment technology, specifically to a magnesium alloy semi-solid injection molding device. Background Technology

[0002] Magnesium alloy semi-solid injection molding technology, as an advanced forming method between liquid casting and solid forging, achieves near-net-shape forming of high-density, high-quality parts at lower injection pressures, significantly improving the mechanical properties and surface quality of the products. Existing equipment cannot dynamically adjust the hot air distribution according to the screw advance rhythm, which easily leads to energy waste or insufficient heating. In the invention patent with publication number CN120755326A, a magnesium alloy semi-solid injection molding device is disclosed, including a feeding cylinder and a hopper for feeding the feeding cylinder, so that the heating gas can flow naturally from the hopper area into the feeding cylinder area, making full use of waste heat for stepped heating, reducing energy waste, lowering energy consumption, and improving thermal energy utilization efficiency.

[0003] While this device possesses the aforementioned advantages, it still has certain drawbacks in practical use: Firstly, the contact time between the circulating hot air and the magnesium alloy material is limited, making it difficult to effectively heat the magnesium alloy in a timely manner. Secondly, directly blowing hot air onto the material for heating not only limits the heating methods but also results in low air heating efficiency. Furthermore, heat loss occurs during the hot air flow, further reducing the heating effect on the magnesium alloy material. Consequently, insufficient heating and heat loss persist during the actual magnesium alloy injection molding process. Therefore, improvements are needed to address the shortcomings of existing magnesium alloy injection molding devices. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a magnesium alloy semi-solid injection molding device, which solves the problem that in the use of existing magnesium alloy injection molding devices, the contact time between the circulating hot air and the magnesium alloy material is short, and there is heat loss during the circulation process, resulting in insufficient heating and heat loss in the actual heating process of the magnesium alloy material.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a magnesium alloy semi-solid injection molding apparatus, comprising a hopper, a temperature control mechanism externally disposed on the hopper, the temperature control mechanism comprising a conveying pipe, a conveying channel disposed at the center of the conveying pipe, the discharge end of the hopper being connected to the interior of the conveying channel, the body of the conveying pipe having an annular heat exchange chamber and a heating chamber respectively, the heat exchange chamber and the heating chamber being coaxial with the conveying channel and arranged sequentially outward along the radial direction of the conveying channel, a magnetic induction coil being disposed inside the heating chamber, main pipes being disposed on both sides of the outside of the conveying pipe, branch pipes being connected to the interior of both main pipes, one end of each branch pipe being connected to the interior of the heat exchange chamber, and gas being disposed inside the heat exchange chamber.

[0006] Preferably, two or more sets of heat exchange chambers and heating chambers are arranged at equal distances along the axial direction of the material conveying channel for zoned temperature control during the magnesium alloy conveying process.

[0007] Preferably, an adjustment assembly is provided outside the magnetic induction coil. The adjustment assembly includes a fixed tube, which is disposed outside the feed pipe. A sliding rheostat is fixedly connected to the outer surface of the fixed tube. A connecting rod is fixedly connected to the sliding end of the sliding rheostat. A pin is fixedly connected to the outer surface of the connecting rod. One end of the pin is slidably connected to the body of the fixed tube and extends into the interior of the fixed tube. A compression spring is sleeved on the outside of the pin. The two ends of the compression spring are fixedly connected to the interior of the fixed tube and one end of the pin, respectively.

[0008] Preferably, the sliding end of the sliding rheostat is embedded and fixedly connected to a movable target, and a laser rangefinder is disposed on the outside of the movable target. The outer surface of the laser rangefinder is fixedly connected to the body of the sliding rheostat through it.

[0009] Preferably, a control unit is provided on the outside of the pin rod. The control unit includes a piston rod, one end of which is slidably connected to one end of the pin rod. The body of the pin rod has a sliding cavity, one end of the piston rod is slidably connected to the inside of the sliding cavity, and one end of the piston rod is fixedly connected to a stop ring. The outer surface of the stop ring is movably connected to the inside of the sliding cavity.

[0010] Preferably, a lifting rod is provided on the outside of the piston rod, the outer surface of the lifting rod is fixedly connected to the body of the solid pipe through the rod, a sealing plate is fixedly connected to the output end of the lifting rod, the outer surface of the sealing plate is slidably connected to the inside of the solid pipe, a temperature measuring rod is provided on the outside of the sealing plate, one end of the temperature measuring rod is fixedly connected to the body of the solid pipe through the rod and extends to the outside of the solid pipe, and the other end of the temperature measuring rod is fixedly connected to the body of the conveying pipe through the rod and extends to the inside of the conveying channel.

[0011] Preferably, the main pipe is provided with a circulation component, which includes two air boxes. The interior of each air box is connected to one end of the main pipe on both sides. The interior of each air box is connected to a connecting pipe. One end of the connecting pipe on one side is connected to the interior of the hopper, and one end of the connecting pipe on the other side is connected to a cyclone separator. The air inlet of the cyclone separator is connected to the interior of the hopper.

[0012] Preferably, a fan blade is rotatably connected inside the connecting pipe on one side, and a filter plate is rotatably connected through the shaft end of the fan blade. The outer surface of the filter plate is fixedly connected to the inside of one end of the connecting pipe on one side, and a stirring rod is fixedly connected to the shaft end of the fan blade through a coupling. The outer surface of the stirring rod is rotatably connected to the inside of the hopper.

[0013] Beneficial effects This invention provides a semi-solid injection molding apparatus for magnesium alloys. Compared with the prior art, it has the following advantages: (1) By setting a temperature control mechanism, the heating chamber and heat exchange chamber are coaxially set with the material conveying channel, and the magnesium alloy is heated by eddy current using a magnetic induction coil. This can quickly raise the temperature of the magnesium alloy, which not only improves the heating efficiency and heating effect, but also further reduces heat loss. Since the heat exchange chamber is closer to the material conveying channel, and the heat exchange chamber is set in a ring shape, the inert gas inside the heat exchange chamber can quickly exchange heat with the inside of the material conveying channel, thereby avoiding the problem of overheating of the magnesium alloy material due to excessive temperature. Furthermore, by setting multiple sets of heat exchange chamber and heating chamber at equal distances along the axial direction of the material conveying channel, gradient heating can be achieved, avoiding the problem of insufficient heating effect caused by heating at the end of the material conveying channel.

[0014] (2) By setting up an adjustment component and using the electrical connection between the sliding rheostat and the magnetic coil, if overheating occurs during the eddy current heating of the magnesium alloy material by the magnetic coil, the current value of the magnetic coil circuit is reduced by the sliding resistance of the sliding rheostat, thereby weakening the heating effect on the magnesium alloy material, so that the temperature and heat of the magnesium alloy material reach the required level, and avoiding the problem of overheating and burning of the magnesium alloy material.

[0015] (3) By setting up a control unit, the heat of different areas of the conveying channel is conducted by the temperature measuring rod and the active gas inside the solid tube is heated so that the internal gas pressure is increased by the expansion of the active gas due to heat. This pushes the piston rod to move and the sliding ring is used to slide inside the sliding cavity. The resistance value of the sliding rheostat is adjusted by the pin and connecting rod. This allows the temperature monitoring inside the conveying channel to be matched with the resistance adjustment of the magnetic coil, thereby achieving adaptive heating to avoid the problem of overheating of magnesium alloy materials. At the same time, by adjusting the position of the sealing plate inside the solid tube, the volume of the active gas activity area is adjusted to provide different temperature ranges, thereby adapting to the gradient heating in the conveying process of magnesium alloy materials and the adaptive heating required for gradient heating.

[0016] (4) By setting up a circulation component, the heat exchange chamber and the main pipes on both sides can be connected in series to form a circulation duct using the air boxes on both sides, connecting pipes, cyclone separators and hoppers. By allowing the inert gas after heat exchange to flow through the hopper, the magnesium alloy material inside the hopper can be dried. This avoids the problem of water vapor in the magnesium alloy material causing oxidation during the heating process, and also preheats the magnesium alloy material to facilitate subsequent semi-solid injection molding. At the same time, the cyclone separator can separate the inert gas and water vapor, realizing the recycling of the inert gas and avoiding the problem of inert gas loss. Attached Figure Description

[0017] Figure 1 This is a perspective view of the internal structure of the present invention; Figure 2 This is a perspective view of the external structure of the connecting rod of the present invention; Figure 3 This is a perspective view of the internal structure of the tube of the present invention; Figure 4 This is a perspective view of the external structure of the air box of the present invention; Figure 5 This is a perspective view of the external structure of the fan blade of the present invention.

[0018] In the diagram: 1. Hopper; 2. Conveying pipe; 3. Conveying channel; 4. Heat exchange chamber; 5. Heating chamber; 6. Magnetic coil; 7. Adjusting assembly; 71. Fixed pipe; 72. Sliding rheostat; 73. Connecting rod; 74. Pin rod; 75. Control unit; 751. Piston rod; 752. Sliding cavity; 753. Abutment ring; 754. Lifting rod; 755. Sealing plate; 756. Temperature measuring rod; 76. Compression spring; 77. Moving target; 78. Laser rangefinder; 8. Circulation assembly; 81. Air box; 82. Connecting pipe; 83. Cyclone separator; 84. Fan blade; 85. Filter plate; 86. Stirring rod; 9. Main pipe; 10. Branch pipe. Detailed Implementation

[0019] 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, and 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.

[0020] Please see Figure 1-5 This invention provides a technical solution: a magnesium alloy semi-solid injection molding device. The system includes a hopper 1, which contains magnesium alloy material to be processed. The hopper 1 is connected to an external feeding device and a negative pressure device. The feeding device supplies the magnesium alloy material to the hopper 1, while the negative pressure device creates a vacuum inside the hopper 1. The hopper 1 is equipped with a temperature control mechanism, including a conveying pipe 2. The conveying pipe 2 is made of a pressure-resistant, wear-resistant, high-temperature corrosion-resistant, and thermally conductive material, while the exterior is made of insulation material to prevent heat loss. A conveying channel 3 is located at the center of the conveying pipe 2. The conveying channel 3 is used for conveying, heating, and injection molding of the magnesium alloy material. It also contains a spiral conveying shaft (not shown in the figure). One end of the conveying channel 3 has a drive mechanism (not shown in the figure) to rotate the spiral conveying shaft, while the other end has an injection port and a molding die (not shown in the figure). The discharge end of the hopper 1 is connected to the interior of the conveying channel 3. The body of the conveying pipe 2 has an annular heat exchange chamber 4 and a heating chamber 5. The heat exchange cavity 4 is used for heat exchange, thereby dissipating heat when the magnesium alloy material inside the conveying channel 3 is overheated. The heat exchange cavity 4 is used to heat the magnesium alloy material inside the conveying channel 3 to facilitate injection molding. The heat exchange cavity 4 and the heating cavity 5 are coaxial with the conveying channel 3 and arranged sequentially along the radial direction of the conveying channel 3. A magnetic induction coil 6 is installed inside the heating cavity 5. The magnetic induction coil 6 is made of a conductive substrate material, including but not limited to T2 soft copper tube. Main pipes 9 are installed on both sides of the outside of the conveying pipe 2. Both the main pipe 9 and the branch pipe 10 are connected through the interior of the main pipe 9. Both the main pipe 9 and the branch pipe 10 are made of heat-insulating material. The main pipe 9 and the branch pipe 10 on both sides are used for the entry and exit of inert gas in the heat exchange chamber 4. At the same time, a solenoid valve is also installed on the branch pipe 10 to control the opening and closing of the branch pipe 10. One end of the branch pipe 10 on both sides is connected through the interior of the heat exchange chamber 4. The interior of the heat exchange chamber 4 is filled with inert gas. The use of inert gas can avoid the problem of oxidation of magnesium alloy material when drying magnesium alloy material in hopper 1.

[0021] Two or more sets of heat exchange chambers 4 and heating chambers 5 are set at equal distances along the axial direction of the conveying channel 3 for zoned temperature control during the conveying process of magnesium alloy. By setting multiple heating zones, the magnesium alloy material can be gradient heated during the conveying process inside the conveying channel 3, avoiding the problem of insufficient heating effect or overheating of magnesium alloy material.

[0022] An adjustment assembly 7 is provided outside the magnetic induction coil 6. The adjustment assembly 7 includes a fixed tube 71, which serves as a fixed support and contains an active gas. The fixed tube 71 is located outside the feed pipe 2. A sliding rheostat 72 is fixedly connected to the outer surface of the fixed tube 71. The sliding rheostat 72 is electrically connected to both the magnetic induction coil 6 and the external control circuit. A connecting rod 73 is fixedly connected to the sliding end of the sliding rheostat 72. A pin 74 is fixedly connected to the outer surface of the connecting rod 73. The pin 74 can drive the sliding rheostat 72 by sliding along a certain axis. The sliding end is used to adjust the current value of the magnetic coil 6 circuit, and the other end is set inside the solid tube 71 to play a limiting role. One end of the pin 74 is slidably connected to the body of the solid tube 71 and extends into the interior of the solid tube 71. A compression spring 76 is sleeved on the outside of the pin 74. The compression spring 76 can cause the pin 74 and the connecting rod 73 to drive the sliding end of the sliding rheostat 72 to reset through its own rebound, so as to provide the predetermined heating effect. The two ends of the compression spring 76 are fixedly connected to the interior of the solid tube 71 and one end of the pin 74, respectively.

[0023] A movable target 77 is embedded and fixedly connected to the sliding end of the sliding rheostat 72. The surface of the movable target 77 is marked. A laser rangefinder 78 is installed outside the movable target 77. The laser rangefinder 78 is electrically connected to an external control circuit. By recognizing the markings on the surface of the movable target 77, the position of the movable target 77 is monitored, thus forming a monitoring circuit. When the sliding end of the sliding rheostat 72 slides a certain distance, the external control circuit opens the solenoid valve on the corresponding branch pipe 10. The inert gas is circulated to dissipate heat from the magnesium alloy material inside the magnetic coil 6 and the material conveying channel 3, preventing the material from overheating and the magnetic coil 6 from being damaged. The outer surface of the laser rangefinder 78 is fixedly connected to the body of the sliding rheostat 72.

[0024] A control unit 75 is provided on the outside of the pin 74. The control unit 75 includes a piston rod 751. The piston rod 751 is made of a material that is pressure-resistant, wear-resistant, high-temperature corrosion-resistant, and has good sealing performance. One end of the piston rod 751 is slidably connected to one end of the pin 74. The body of the pin 74 has a sliding cavity 752. The sliding cavity 752 provides a certain sliding path to facilitate the expansion of the active gas during the heating process. This avoids the piston rod 751 directly pushing the pin 74 to move during the gradual heating of the magnesium alloy material by the magnetic induction coil 6. One end of the piston rod 751 is slidably connected to the inside of the sliding cavity 752. A retaining ring 753 is fixedly connected to one end of the piston rod 751. The retaining ring 753 drives the pin 74 to slide axially by abutting against the two sides inside the sliding cavity 752. At the same time, the sliding friction between the retaining ring 753 and the sliding cavity 752 is offset by the elastic force of the compression spring 76. The outer surface of the retaining ring 753 is movably connected to the inside of the sliding cavity 752.

[0025] A lifting rod 754 is provided on the outside of the piston rod 751. The lifting rod 754 is made of an electric push rod and is electrically connected to an external control circuit. The outer surface of the lifting rod 754 is fixedly connected to the body of the solid tube 71. A sealing plate 755 is fixedly connected to the output end of the lifting rod 754. The sealing plate 755 is made of the same material as the piston rod 751 and slides to adjust the internal air pressure of the solid tube 71 to provide different temperature monitoring ranges, thereby adapting to the gradient heating of the magnesium alloy material in the conveying channel 3. The outer surface of the sealing plate 755... The sealing plate 755 is slidably connected to the inside of the solid pipe 71. A temperature measuring rod 756 is provided on the outside of the sealing plate 755. The temperature measuring rod 756 is made of a material that is resistant to high temperature and corrosion and has good thermal conductivity. The two ends of the temperature measuring rod 756 are fixed to the inside of the conveying pipe 2 and the solid pipe 71 respectively for heat conduction. The middle part is wrapped by the outside of the conveying pipe 2 to play a role in heat preservation. One end of the temperature measuring rod 756 is fixedly connected to the body of the solid pipe 71 and extends to the outside of the solid pipe 71. The other end of the temperature measuring rod 756 is fixedly connected to the body of the conveying pipe 2 and extends to the inside of the conveying channel 3.

[0026] The main pipe 9 is externally equipped with a circulation assembly 8, which includes two gas boxes 81. The gas boxes 81 are made of a pressure-resistant, heat-insulating, and high-temperature corrosion-resistant material. One gas box 81 is used to store high-temperature inert gas, and the other gas box 81 is used to store low-temperature inert gas. The interiors of the two gas boxes 81 are respectively connected to one end of the two main pipes 9. Connecting pipes 82 are connected to the interiors of both gas boxes 81. The gas box 81 used to store high-temperature inert gas is connected to the corresponding connecting pipe 82 via a pump or exhaust fan, while the gas box 81 used to store low-temperature inert gas is connected to the corresponding main pipe 9 via a pump, etc., to facilitate the storage of inert gas. The flow of the material is such that one end of the connecting pipe 82 is connected to the interior of the hopper 1, and the other end of the connecting pipe 82 is connected to a cyclone separator 83. The cyclone separator 83 can separate impurities and water vapor mixed in the inert gas. At the same time, one end of the connecting pipe 82 and the air inlet of the cyclone separator 83 are connected to the upper and lower parts of the interior of the hopper 1, respectively. The air inlet of the cyclone separator 83 is equipped with a filter to prevent magnesium alloy materials from entering its interior. As a preferred method, in order to improve the separation effect, multiple cyclone separators 83 can be connected in series for filtration and separation. The air inlet of the cyclone separator 83 is connected to the interior of the hopper 1.

[0027] A fan blade 84 is rotatably connected inside the connecting pipe 82 on one side. The fan blade 84 obtains rotational power by contacting the flowing inert gas. A filter plate 85 is rotatably connected through the shaft end of the fan blade 84. The filter plate 85 facilitates the fixed support of the fan blade 84 and also facilitates the flow of inert gas. The outer surface of the filter plate 85 is fixedly connected to the inside of one end of the connecting pipe 82 on one side. A stirring rod 86 is fixedly connected to the shaft end of the fan blade 84 through a coupling. The stirring rod 86 rotates with the fan blade 84, which facilitates the flow of inert gas and improves the drying effect and efficiency of magnesium alloy materials. The outer surface of the stirring rod 86 is rotatably connected to the inside of the hopper 1.

[0028] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0029] Working principle: First, the magnesium alloy material to be processed is fed into the hopper 1 for storage through an external feeding device. Then, the air inside the hopper 1 is extracted by an external negative pressure device. As one side air box 81 pumps the high-temperature inert gas stored inside into the hopper 1 through an air pump, the high-temperature inert gas is driven to rotate by contact with the blades of the fan blade 84 during the flow of the high-temperature inert gas. This causes the stirring rod 86 to rotate inside the hopper 1 to achieve stirring of the magnesium alloy material. At the same time, the high-temperature inert gas dries and preheats the magnesium alloy material as it flows inside the hopper 1. Then, the inert gas enters the cyclone separator 83 to separate the impurities and water vapor mixed in with the inert gas. Meanwhile, the clean inert gas is cooled down by heat dissipation during the flow and flows into the other side air box 81 for storage. When performing injection molding on magnesium alloy materials, the magnesium alloy materials that have been dried and preheated inside the hopper 1 first enter the conveying channel 3 inside the conveying pipe 2 through the discharge end of the hopper 1. Then, the spiral conveying shaft drives the magnesium alloy materials to move inside the conveying channel 3. During the movement, the external control circuit supplies power to the magnetic induction coil 6 through the sliding rheostat 72, thereby heating the magnesium alloy materials with eddy current through the magnetic induction coil 6. Gradient heating is achieved through multiple sets of magnetic induction coils 6, so that the magnesium alloy materials are in a semi-solid state. Finally, the materials are injection molded at the end of the conveying process through the injection port and the molding die. When the magnetic coil 6 heats the magnesium alloy material, the temperature measuring rod 756 conducts its temperature through contact with the heated magnesium alloy material, thereby heating the active gas inside the solid tube 71. The active gas expands due to heat, pushing the piston rod 751 to slide inside the solid tube 71. At the same time, the abutment ring 753 slides inside the sliding cavity 752. When the abutment ring 753 abuts against the inner wall of one side of the sliding cavity 752, it pushes the pin 74 to slide axially. On the one hand, the pin 74 compresses the compression spring 76, and on the other hand, the pin 74 drives the sliding end of the sliding rheostat 72 to slide through the connecting rod 73, thereby increasing the resistance of the magnetic coil 6 circuit and reducing the circuit current, thus reducing the heating effect of the magnetic coil 6. When the temperature of the magnesium alloy material is too high, when the sliding end of the sliding rheostat 72 slides, the laser rangefinder 78 monitors the relative position of the moving target 77. Once the distance between the two is less than the preset distance value, a monitoring signal is generated. After receiving the monitoring signal, the external control circuit controls the solenoid valve on the branch pipe 10 connected to the heat exchange chamber 4 in the corresponding heating area to open. At the same time, it controls the air pump to draw low-temperature inert gas from the air box 81, allowing it to flow into the corresponding heat exchange chamber 4 through the main pipe 9 and the corresponding branch pipe 10. This heats the magnesium alloy material in the heating area by exchanging heat and cooling it down. The heated inert gas then enters the corresponding air box 81 through the branch pipe 10 on the other side and the main pipe 9 for storage, which is used for drying and preheating the magnesium alloy material in the hopper 1 later. When the temperature in the corresponding heating area drops to the required temperature, the pressure of the active gas in the solid pipe 71 decreases. At the same time, the spring 76 rebounds, causing the pin 74 to drive the sliding end of the sliding rheostat 72 to reset. Then, by monitoring the position of the moving target 77 through the laser rangefinder 78, the inert gas is controlled to stop flowing and be completely stored in the corresponding air box 81.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnesium alloy semi-solid injection molding apparatus, comprising a hopper (1), characterized in that: The hopper (1) is provided with a temperature control mechanism on its exterior. The temperature control mechanism includes a conveying pipe (2). A conveying channel (3) is provided at the center of the conveying pipe (2). The discharge end of the hopper (1) is connected to the interior of the conveying channel (3). The body of the conveying pipe (2) is provided with an annular heat exchange chamber (4) and a heating chamber (5). The heat exchange chamber (4) and the heating chamber (5) are coaxial with the conveying channel (3) and are arranged in sequence along the radial direction of the conveying channel (3). A magnetic coil (6) is provided inside the heating chamber (5). A main pipe (9) is provided on both sides of the outside of the conveying pipe (2). A branch pipe (10) is connected to the interior of the main pipe (9) on both sides. One end of the branch pipe (10) on both sides is connected to the interior of the heat exchange chamber (4). Gas is provided inside the heat exchange chamber (4).

2. The magnesium alloy semi-solid injection molding apparatus according to claim 1, characterized in that: The heat exchange chamber (4) and heating chamber (5) are arranged in two or more sets at equal distances along the axial direction of the material conveying channel (3) for zoned temperature control during the conveying process of magnesium alloy.

3. The magnesium alloy semi-solid injection molding apparatus according to claim 1, characterized in that: An adjustment assembly (7) is provided on the outside of the magnetic induction coil (6). The adjustment assembly (7) includes a solid tube (71). The solid tube (71) is located outside the feed pipe (2). A sliding rheostat (72) is fixedly connected to the outer surface of the solid tube (71). A connecting rod (73) is fixedly connected to the sliding end of the sliding rheostat (72). A pin (74) is fixedly connected to the outer surface of the connecting rod (73). One end of the pin (74) is slidably connected to the body of the solid tube (71) and extends into the interior of the solid tube (71). A compression spring (76) is sleeved on the outside of the pin (74). The two ends of the compression spring (76) are fixedly connected to the interior of the solid tube (71) and one end of the pin (74), respectively.

4. The magnesium alloy semi-solid injection molding apparatus according to claim 3, characterized in that: The sliding end of the sliding rheostat (72) is embedded and fixedly connected to a movable target (77). A laser rangefinder (78) is provided on the outside of the movable target (77). The outer surface of the laser rangefinder (78) is fixedly connected to the body of the sliding rheostat (72).

5. The magnesium alloy semi-solid injection molding apparatus according to claim 3, characterized in that: A control unit (75) is provided on the outside of the pin (74). The control unit (75) includes a piston rod (751). One end of the piston rod (751) is slidably connected to one end of the pin (74). The body of the pin (74) has a sliding cavity (752). One end of the piston rod (751) is slidably connected to the inside of the sliding cavity (752). One end of the piston rod (751) is fixedly connected to a stop ring (753). The outer surface of the stop ring (753) is movably connected to the inside of the sliding cavity (752).

6. The magnesium alloy semi-solid injection molding apparatus according to claim 5, characterized in that: A lifting rod (754) is provided on the outside of the piston rod (751). The outer surface of the lifting rod (754) is fixedly connected to the body of the solid tube (71). A sealing plate (755) is fixedly connected to the output end of the lifting rod (754). The outer surface of the sealing plate (755) is slidably connected to the inside of the solid tube (71). A temperature measuring rod (756) is provided on the outside of the sealing plate (755). One end of the temperature measuring rod (756) is fixedly connected to the body of the solid tube (71) and extends to the outside of the solid tube (71). One end of the temperature measuring rod (756) is fixedly connected to the body of the conveying pipe (2) and extends to the inside of the conveying channel (3).

7. The magnesium alloy semi-solid injection molding apparatus according to claim 1, characterized in that: The main pipe (9) is provided with a circulation component (8) on the outside. The circulation component (8) includes two air boxes (81). The interior of the two air boxes (81) is connected to one end of the two main pipes (9) respectively. The interior of the two air boxes (81) is connected to a connecting pipe (82). One end of the connecting pipe (82) on one side is connected to the interior of the hopper (1). One end of the connecting pipe (82) on the other side is connected to a cyclone separator (83). The air inlet of the cyclone separator (83) is connected to the interior of the hopper (1).

8. The magnesium alloy semi-solid injection molding apparatus according to claim 7, characterized in that: A fan blade (84) is rotatably connected inside the connecting pipe (82) on one side. A filter plate (85) is rotatably connected through the shaft end of the fan blade (84). The outer surface of the filter plate (85) is fixedly connected to the inside of one end of the connecting pipe (82) on one side. A stirring rod (86) is fixedly connected to the shaft end of the fan blade (84) through a coupling. The outer surface of the stirring rod (86) is rotatably connected to the inside of the hopper (1).

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