Isothermal cooling die-casting equipment and method for aluminum flange with neck

Abstract

The present invention discloses an isothermal cooling die-casting device and method for an aluminum flange with a neck, which relates to the technical field of die-casting, comprising a die-casting table, wherein an upper mold and a lower mold are arranged inside the die-casting table, and a melting cavity is arranged outside the die-casting table; the upper mold and the lower mold are combined together to form a die-casting cavity, and a conveying body is arranged inside the die-casting cavity, and the outer wall diameter of the conveying body is equal to the inner wall diameter of the flange; during the conveying process, the molten metal can be conveyed to the die-casting cavity by the conveying pipe through a spiral tube. Since the diameter of the spiral tube is small, the flow rate of the molten metal is accelerated when the molten metal flows in the spiral tube. When the molten metal flows out from the side of the spiral tube away from the conveying pipe, the flow rate of the molten metal is the fastest. Then, the molten metal moves to the side of the die-casting cavity away from the conveying pipe in the form of a jet, so that the molten metal first fills the edge of the die-casting cavity and then fills the center of the die-casting cavity.

Description

Technical Field

[0001] The invention relates to the technical field of die casting, in particular to isothermal cooling die casting equipment and a method for an aluminum flange with a neck. Background Art

[0002] Die casting equipment is a type of equipment used for metal pressure casting. It allows molten metal to be quickly filled into the mold cavity under high pressure, and obtains precise metal parts after cooling and solidification. Die-cast workpieces are widely used in many industries such as automobiles, aviation, electronics, and home appliances.

[0003] In the existing die-casting device, during the process of injecting molten metal, the molten metal flows in the runner, and heat is lost. As a result, the temperature of the molten metal drops and solidifies after it is transported to the die-casting cavity, thereby affecting the die-casting quality. In addition, during the die-casting process, the diameter of the runner is large, resulting in a large amount of processing residue connected to the formed workpiece. Summary of the Invention

[0004] The object of the present invention is to provide an isothermal cooling die-casting device and method for an aluminum flange with a neck, so as to solve the problems raised in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An isothermal cooling die-casting device for an aluminum flange with a neck includes a die-casting table, an upper mold and a lower mold are arranged inside the die-casting table, the upper mold is a movable mold, and the lower mold is a fixed mold. A hydraulic cylinder is provided on the side of the die-casting table close to the upper mold, and the push rod of the hydraulic cylinder is connected to the upper mold. A melting cavity is provided outside the die-casting table.

[0007] Preferably, the upper mold and the lower mold are combined to form a die-casting cavity, and a conveying body is provided inside the die-casting cavity, and the outer wall diameter of the conveying body is equal to the inner wall diameter of the flange.

[0008] After the previous die-casting flange is removed, the controller controls the hydraulic cylinder on the die-casting table to start, and the push rod of the hydraulic cylinder drives the upper mold to move, and the upper mold moves to the side close to the lower mold. Finally, the upper mold and the lower mold complete the mold closing, so that the upper mold and the lower mold are combined into a die-casting cavity.

[0009] Preferably, the conveying body is composed of an upper pressing body and a lower pressing body, a conveying tube is provided inside the upper pressing body, a piston rod is provided on the side of the conveying tube away from the lower pressing body, the piston rod is slidingly and sealingly connected to the conveying tube, an electric cylinder is provided on the side of the conveying tube away from the piston rod, the push rod of the electric cylinder is connected to the piston rod, and an infusion port is provided on the top of the upper mold, and the infusion port is connected to the conveying tube.

[0010] The molten metal is transported to the conveying pipe through the melting cavity, and then the controller controls the electric cylinder to start. The push rod in the electric cylinder drives the piston rod to move, so that the piston rod moves along the conveying pipe to the side close to the conveying body. The piston rod pushes the molten metal to move during the movement, and the molten metal is subjected to pressure injection treatment. When the piston rod moves to the maximum point, that is, when the depression and the bulge fit together, the molten metal fills the die-casting cavity. Then the piston rod remains stationary to complete the pressure maintenance treatment of the die-casting cavity.

[0011] Preferably, a plurality of spiral grooves are provided at the bottom of the upper pressure body and the top of the lower pressure body, and the upper and lower spiral grooves are combined into a spiral tube, and the delivery tube is connected to the die-casting cavity through the spiral grooves.

[0012] After the upper mold and the lower mold are closed, the spiral grooves arranged on the upper and lower sides are combined into a spiral tube, so that the molten metal can be transported to the die-casting cavity by the delivery pipe through the spiral tube during the transportation process. Due to the small diameter of the spiral tube, the flow rate of the molten metal is accelerated when it flows in the spiral tube. When the molten metal flows out from the side of the spiral tube away from the delivery pipe, the flow rate of the molten metal is the fastest at this time. Then, the molten metal moves to the side of the die-casting cavity away from the delivery pipe in the form of a jet, so that the molten metal first fills the edge of the die-casting cavity and then fills the center of the die-casting cavity, thereby improving the quality of the flange die-casting.

[0013] Preferably, a liquid spray port is provided between two adjacent spiral grooves, and a slope is provided on the surface of the liquid spray port, and the height of the slope close to the die-casting cavity is greater than the height of the slope close to the delivery pipe. A degreasing cavity is also provided on the outside of the die-casting table, and a suction pump is provided in the degreasing cavity, and the suction pump is connected to the liquid spray port through a pipeline.

[0014] When the upper mold moves toward the side close to the lower mold, the controller controls the suction pump to start, and the suction pump extracts the degreasing agent in the degreasing cavity, transports it to the liquid spray port through the pipeline, and then sprays it out through the liquid spray port. Since the surface of the liquid spray port is provided with a slope, and the height of the slope close to the die-casting cavity is greater than the height of the slope close to the delivery pipe, the liquid spray port located in the lower mold sprays toward the bottom of the upper mold, and the liquid spray port located in the upper mold sprays toward the top of the lower mold. During the process of closing the upper and lower molds, the spraying of the degreasing agent is completed, which shortens the time required for the process flow.

[0015] Preferably, a protrusion is provided at the center of the lower pressing body, and a depression is provided on a side of the piston rod close to the protrusion, and the protrusion is engaged with the depression.

[0016] During the die-casting period, the electromagnet in the moving cavity is in the power-off state, and the axes of the ball, moving column and rotating ball are in the overlapping state. At this time, the exhaust pipe is located inside the protrusion, and the protrusion and the rotating ball form a whole. When the piston rod pushes the molten metal to move along the conveying pipe, when the molten metal moves to the junction of the protrusion and the spiral groove, the protrusion occupies the space in the conveying pipe, so that the moving space of the molten metal is compressed, and the flow speed of the molten metal is accelerated, so that the molten metal is transported faster from the conveying pipe through the spiral pipe composed of the spiral groove to the die-casting cavity, and transported at a faster speed, thereby avoiding the loss of heat of the molten metal during the conveying process.

[0017] Preferably, a movable cavity is provided inside the lower pressure body, a movable column is provided in the movable cavity, a ball is provided at the bottom of the movable column, the movable column is slidingly connected to the movable cavity through the ball, a plurality of electromagnets are provided at the bottom of the movable cavity, and the ball is a magnetic conductor.

[0018] When the electromagnet is energized, it generates magnetic force, which attracts the ball, which serves as a magnetic conductor, causing the ball to slide along the bottom of the moving cavity. During the sliding process, the ball drives the moving column to deflect. After the moving column deflects, the rotating ball will also deflect, thereby driving the movement of the exhaust pipe and completing the connection between the delivery pipe and the moving cavity.

[0019] Preferably, a rotating ball is provided on the top of the movable column, and the rotating ball is rotatably connected to the protrusion. Several exhaust pipes are provided on the side of the rotating ball close to the movable cavity. One end of the exhaust pipe is connected to the delivery pipe, and the other end of the exhaust pipe is connected to the movable cavity. An air pump is provided at the bottom of the lower mold, and the air pump is connected to the movable cavity through a pipeline.

[0020] The air pump is started under the action of the controller, and the air pump extracts the air in the moving chamber. At the same time of gas extraction, the electromagnet at the bottom of the moving chamber is energized, and the electromagnet generates magnetic force, which causes the ball to rotate under the influence of the magnetic force. After the ball rotates, it drives the moving column to deflect, and the moving column drives the rotating ball to rotate after deflection, and then the rotating ball drives one end of the exhaust pipe to rotate from the side located inside the protrusion to the side located on the delivery pipe. At this time, the exhaust pipe connects the delivery pipe and the moving chamber, and the gas in the die-casting chamber and the delivery pipe can be transported to the moving chamber through the exhaust pipe, thereby completing the vacuum treatment in the die-casting chamber, and due to the sequential energization of the electromagnet, the rotating ball can rotate around the axis of the protrusion, so that several exhaust pipes can perform exhaust treatment on the gas in different directions. The extracted gas is transported to the moving chamber, where it will be affected by the heat of the electromagnet, and then the gas can be heated in the moving chamber, and finally transported to the steam chamber through the pipeline for insulation treatment, thereby improving resource utilization.

[0021] Preferably, a steam chamber is provided on the side of the upper mold and the lower mold close to the die-casting cavity, and the steam chamber is filled with steam through a pipe. The distance between the die-casting cavity and the side of the steam chamber away from the conveying body is smaller than the distance between the die-casting cavity and the side of the steam chamber close to the conveying body.

[0022] By conveying steam into the steam chamber, the temperature carried by the steam can be transferred to the die-casting chamber through the upper mold and the lower mold, so that the temperature in the die-casting chamber rises, avoiding the rapid condensation of the molten metal when it cools, thereby causing die-casting defects and affecting the die-casting quality. In addition, the distance between the die-casting chamber and the side of the steam chamber away from the conveying body is smaller than the distance between the die-casting chamber and the side of the steam chamber close to the conveying body, so that the heat received by the inner wall of the die-casting chamber on the farther side of the spiral groove increases, thereby reducing the temperature difference between the edge and center positions of the die-casting chamber, thereby improving the quality of the flange die-casting.

[0023] A molding method of an isothermal cooling die-casting molding device for an aluminum flange with a neck, characterized by:

[0024] The molding method comprises the following specific steps:

[0025] S1, the upper mold moves toward the side close to the lower mold;

[0026] S2: While the upper mold is moving, the degreasing agent is sprayed out from the spray port;

[0027] S3. After the upper mold and the lower mold are closed, the die casting cavity is vacuumed;

[0028] S4, the piston rod pushes the molten metal to perform injection processing;

[0029] S5. After die casting is completed, the upper mold and the lower mold are separated.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. Due to the small diameter of the spiral tube, the flow rate of the molten metal is accelerated when it flows in the spiral tube. When the molten metal flows out from the side of the spiral tube away from the delivery pipe, the flow rate of the molten metal is the fastest. Then, the molten metal moves to the side of the die-casting cavity away from the delivery pipe in the form of a jet, so that the molten metal first fills the edge of the die-casting cavity and then fills the center of the die-casting cavity, thereby improving the quality of the flange die-casting.

[0032] 2. Since the protrusions occupy the space in the conveying pipe, the moving space of the molten metal is compressed, and the flow speed of the molten metal is accelerated, so that the molten metal is transported from the conveying pipe through the spiral pipe composed of spiral grooves to the die-casting cavity faster, and transported at a faster speed, avoiding the loss of heat of the molten metal during the transportation process.

[0033] 3. As the electromagnets are energized in sequence, the rotating ball can rotate around the raised axis, so that several exhaust pipes can exhaust the gas in different directions. The extracted gas is transported to the mobile cavity, where it will be affected by the heat of the electromagnet. The gas can then be heated in the mobile cavity and finally transported to the steam cavity through the pipeline for insulation treatment, thereby improving resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A perspective view of the present invention;

[0035] Figure 2 Schematic diagram of the structure of the upper mold;

[0036] Figure 3 Schematic diagram of the structure of the lower mold;

[0037] Figure 4 Schematic diagram of the internal structure of the present invention;

[0038] Figure 5 It is an internal front view of the present invention;

[0039] Figure 6 It is a structural schematic diagram of the rotating ball when it is in a rotating state;

[0040] Figure 7 for Figure 4 A magnified view of middle A;

[0041] In the figure: 1. Die-casting table; 11. Upper mold; 12. Lower mold; 13. Die-casting cavity; 14. Conveying body; 15. Upper pressure body; 16. Lower pressure body; 17. Conveying pipe; 18. Piston rod; 19. Spiral groove; 20. Liquid spraying port; 21. Protrusion; 22. Depression; 23. Moving cavity; 24. Moving column; 25. Ball; 26. Rotating ball; 27. Exhaust pipe; 28. Steam cavity. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] Example: Figure 1-Figure 7 As shown, the present invention provides a technical solution for isothermal cooling die-casting equipment and method for aluminum flange with neck.

[0044] An isothermal cooling die-casting molding equipment for an aluminum flange with a neck includes a die-casting table 1, an upper mold 11 and a lower mold 12 are arranged inside the die-casting table 1, the upper mold 11 is a movable mold, and the lower mold 12 is a fixed mold. A hydraulic cylinder is provided on the side of the die-casting table 1 close to the upper mold 11, and the push rod of the hydraulic cylinder is connected to the upper mold 11. A melting cavity is provided outside the die-casting table 1.

[0045] As a specific embodiment of the present invention, the upper mold 11 and the lower mold 12 are combined to form a die-casting cavity 13. A conveying body 14 is provided inside the die-casting cavity 13. The outer wall diameter of the conveying body 14 is equal to the inner wall diameter of the flange.

[0046] As a specific embodiment of the present invention, a steam chamber 28 is provided on the side of the upper mold 11 and the lower mold 12 close to the die-casting cavity 13, and the steam chamber 28 is filled with steam through a pipe. The distance between the steam chamber 28 away from the conveying body 14 and the die-casting cavity 13 is smaller than the distance between the steam chamber 28 close to the conveying body 14 and the die-casting cavity 13.

[0047] As a specific embodiment of the present invention, the conveying body 14 is composed of an upper pressure body 15 and a lower pressure body 16, a conveying tube 17 is provided inside the upper pressure body 15, a piston rod 18 is provided on the side of the conveying tube 17 away from the lower pressure body 16, the piston rod 18 is slidingly and sealedly connected to the conveying tube 17, an electric cylinder is provided on the side of the conveying tube 17 away from the piston rod 18, the push rod of the electric cylinder is connected to the piston rod 18, and an infusion port is provided on the top of the upper mold 11, and the infusion port is connected to the conveying tube 17.

[0048] As a specific embodiment of the present invention, a protrusion 21 is provided at the center of the lower pressing body 16 , and a recess 22 is provided on a side of the piston rod 18 close to the protrusion 21 , and the protrusion 21 is engaged with the recess 22 .

[0049] As a specific embodiment of the present invention, a plurality of spiral grooves 19 are provided at the bottom of the upper pressure body 15 and the top of the lower pressure body 16. The upper and lower spiral grooves 19 are combined into a spiral tube, and the delivery tube 17 is connected to the die-casting cavity 13 through the spiral grooves 19.

[0050] As a specific embodiment of the present invention, a liquid spray port 20 is provided between two adjacent spiral grooves 19, and a slope is provided on the surface of the liquid spray port 20. The height of the slope close to the die-casting cavity 13 is greater than the height of the slope close to the delivery pipe 17. A degreasing cavity is also provided on the outside of the die-casting table 1, and a suction pump is provided in the degreasing cavity. The suction pump is connected to the liquid spray port 20 through a pipeline.

[0051] As a specific embodiment of the present invention, a movable cavity 23 is provided inside the lower pressure body 16, a movable column 24 is provided in the movable cavity 23, a ball 25 is provided at the bottom of the movable column 24, the movable column 24 is slidingly connected to the movable cavity 23 through the ball 25, and a plurality of electromagnets are provided at the bottom of the movable cavity 23, and the ball 25 is a magnetic conductor.

[0052] As a specific embodiment of the present invention, a rotating ball 26 is provided on the top of the movable column 24, and the rotating ball 26 is rotatably connected to the protrusion 21. A plurality of exhaust pipes 27 are provided on the side of the rotating ball 26 close to the movable cavity 23. One end of the exhaust pipe 27 is connected to the delivery pipe 17, and the other end of the exhaust pipe 27 is connected to the movable cavity 23. An air pump is provided at the bottom of the lower mold 12, and the air pump is connected to the movable cavity 23 through a pipeline.

[0053] A molding method of an isothermal cooling die-casting molding device for an aluminum flange with a neck, characterized by:

[0054] The molding method comprises the following specific steps:

[0055] S1, the upper mold 11 moves toward the side close to the lower mold 12;

[0056] S2: While the upper mold 11 is moving, the spray port 20 sprays the degreasing agent;

[0057] S3, after the upper mold 11 and the lower mold 12 are closed, the die casting cavity 13 is vacuumed;

[0058] S4, the piston rod 18 pushes the molten metal to perform injection processing;

[0059] S5. After die casting is completed, the upper mold 11 and the lower mold 12 are separated.

[0060] Working principle of the present invention:

[0061] After the previous die-casting flange is removed, the controller controls the hydraulic cylinder on the die-casting table 1 to start, and the push rod of the hydraulic cylinder drives the upper mold 11 to move, and the upper mold 11 moves to the side close to the lower mold 12. Finally, the upper mold 11 and the lower mold 12 are closed, so that the upper mold 11 and the lower mold 12 are combined to form a die-casting cavity 13;

[0062] When the upper mold 11 moves toward the side close to the lower mold 12, the controller controls the suction pump to start, and the suction pump extracts the degreasing agent in the degreasing cavity and transports it to the liquid spraying port 20 through the pipeline. Then, the liquid is sprayed outward through the liquid spraying port 20. Since the surface of the liquid spraying port 20 is provided with an inclined surface, and the height of the inclined surface close to the die-casting cavity 13 is greater than the height of the inclined surface close to the delivery pipe 17, the liquid spraying port 20 located in the lower mold 12 sprays toward the bottom of the upper mold 11, and the liquid spraying port 20 located in the upper mold 11 sprays toward the top of the lower mold 12. During the process of closing the upper mold 11 and the lower mold 12, the degreasing agent is sprayed.

[0063] The pump is started under the action of the controller, and the air pump extracts the air in the movable chamber 23. While the gas is being extracted, the electromagnet at the bottom of the movable chamber 23 is energized, and the electromagnet generates a magnetic force, which causes the ball 25 to rotate under the influence of the magnetic force. After the ball 25 rotates, it drives the movable column 24 to deflect. After the movable column 24 deflects, it drives the rotating ball 26 to rotate. Then, the rotating ball 26 drives one end of the exhaust pipe 27 to rotate from the side located inside the protrusion 21 to the side located on the delivery pipe 17. At this time, the exhaust pipe 27 connects the delivery pipe 17 and the movable chamber 23. The gas in the die-casting cavity 13 and the delivery pipe 17 can be delivered to the movable cavity 23 through the exhaust pipe 27, thereby completing the vacuum treatment in the die-casting cavity 13. Moreover, due to the sequential energization of the electromagnets, the rotating ball 26 can rotate around the axis of the protrusion 21, so that the plurality of exhaust pipes 27 can exhaust the gas in different directions. The extracted gas is delivered to the movable cavity 23, where it will be affected by the heat of the electromagnet, and then the gas can be heated in the movable cavity 23. Finally, it is delivered to the steam cavity 28 through the pipeline for heat preservation treatment.

[0064] After the upper mold 11 and the lower mold 12 are closed, the spiral grooves 19 arranged on the upper and lower sides are combined into a spiral tube, so that the molten metal can be transported through the spiral tube and transported to the die-casting cavity 13 by the delivery pipe 17 during the transportation process. Due to the small diameter of the spiral tube, the flow rate of the molten metal is accelerated when flowing in the spiral tube. When the molten metal flows out from the side of the spiral tube away from the delivery pipe 17, the flow rate of the molten metal is the fastest at this time. Then, the molten metal moves to the side of the die-casting cavity 13 away from the delivery pipe 17 in the form of a jet, so that the molten metal first fills the edge of the die-casting cavity 13 and then fills the center of the die-casting cavity 13;

[0065] During die-casting, the electromagnet in the movable cavity 23 is in a power-off state, and the axes of the ball 25, the movable column 24 and the rotating ball 26 are in an overlapping state. At this time, the exhaust pipe 27 is located inside the protrusion 21, and the protrusion 21 and the rotating ball 26 form a whole. When the piston rod 18 pushes the molten metal to move along the conveying pipe 17, when the molten metal moves to the junction of the protrusion 21 and the spiral groove 19, the protrusion 21 occupies the space in the conveying pipe 17, so that the moving space of the molten metal is compressed, and the flow speed of the molten metal is accelerated, so that the molten metal is more quickly conveyed from the conveying pipe 17 through the spiral pipe composed of the spiral groove 19 to the die-casting cavity 13, and conveyed at a faster speed.

[0066] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An isothermal cooling die-casting device for aluminum flanges with necks, characterized by: The die-casting platform (1) comprises an upper mold (11) and a lower mold (12) arranged inside the die-casting platform (1), wherein the upper mold (11) is a movable mold and the lower mold (12) is a fixed mold; a hydraulic cylinder is arranged on one side of the die-casting platform (1) close to the upper mold (11); a push rod of the hydraulic cylinder is connected to the upper mold (11); and a melting cavity is arranged outside the die-casting platform (1); The upper mold (11) and the lower mold (12) are combined to form a die-casting cavity (13), and a conveying body (14) is provided inside the die-casting cavity (13). The outer wall diameter of the conveying body (14) is equal to the inner wall diameter of the flange; The conveying body (14) is composed of an upper pressing body (15) and a lower pressing body (16), a conveying pipe (17) is provided inside the upper pressing body (15), a piston rod (18) is provided on the side of the conveying pipe (17) away from the lower pressing body (16), the piston rod (18) and the conveying pipe (17) are connected in a sliding and sealing manner, an electric cylinder is provided on the side of the conveying pipe (17) away from the piston rod (18), the push rod of the electric cylinder is connected to the piston rod (18), and an infusion port is provided on the top of the upper mold (11), and the infusion port is connected to the conveying pipe (17); A plurality of spiral grooves (19) are provided at the bottom of the upper pressure body (15) and the top of the lower pressure body (16). The upper and lower spiral grooves (19) are combined into a spiral tube. The delivery tube (17) is connected to the die-casting cavity (13) through the spiral grooves (19).

2. The isothermal cooling die-casting equipment for aluminum flanges with necks according to claim 1, characterized in that: A liquid spray port (20) is provided between two adjacent spiral grooves (19), and a slope is provided on the surface of the liquid spray port (20), and the height of the slope close to the die-casting cavity (13) is greater than the height of the slope close to the delivery pipe (17). A degreasing cavity is also provided on the outside of the die-casting table (1), and a suction pump is provided in the degreasing cavity, and the suction pump is connected to the liquid spray port (20) through a pipeline.

3. The isothermal cooling die-casting equipment for aluminum flanges with necks according to claim 2, characterized in that: A protrusion (21) is provided at the center of the lower pressing body (16), and a recess (22) is provided on one side of the piston rod (18) close to the protrusion (21), and the protrusion (21) is engaged with the recess (22).

4. The isothermal cooling die-casting equipment for aluminum flanges with necks according to claim 3, characterized in that: A movable cavity (23) is provided inside the lower pressure body (16), a movable column (24) is provided in the movable cavity (23), a ball (25) is provided at the bottom of the movable column (24), the movable column (24) is slidably connected to the movable cavity (23) through the ball (25), a plurality of electromagnets are provided at the bottom of the movable cavity (23), and the ball (25) is a magnetic conductor.

5. The isothermal cooling die-casting equipment for aluminum flanges with necks according to claim 4, characterized in that: A rotating ball (26) is provided on the top of the movable column (24), and the rotating ball (26) is rotatably connected to the protrusion (21). A plurality of exhaust pipes (27) are provided on the side of the rotating ball (26) close to the movable cavity (23). One end of the exhaust pipe (27) is connected to the delivery pipe (17), and the other end of the exhaust pipe (27) is connected to the movable cavity (23). An air pump is provided at the bottom of the lower mold (12), and the air pump is connected to the movable cavity (23) through a pipeline.

6. The isothermal cooling die-casting equipment for aluminum flanges with necks according to claim 5, characterized in that: A steam cavity (28) is provided on one side of the upper mold (11) and the lower mold (12) close to the die-casting cavity (13); the steam cavity (28) is filled with steam through a pipeline; and the distance between the die-casting cavity (13) and the side of the steam cavity (28) away from the conveying body (14) is smaller than the distance between the die-casting cavity (13) and the side of the steam cavity (28) close to the conveying body (14).

7. A molding method for an isothermal cooling die-casting molding apparatus for an aluminum flange with a neck according to any one of claims 1 to 6, characterized in that: The molding method comprises the following specific steps: S1, the upper mold (11) moves toward the side close to the lower mold (12); S2, while the upper mold (11) moves, the liquid spraying port (20) sprays out the degreasing agent; S3, after the upper mold (11) and the lower mold (12) are closed, the die casting cavity (13) is vacuumed; S4, the piston rod (18) pushes the molten metal to perform injection processing; S5. After die casting is completed, the upper mold (11) and the lower mold (12) are separated.

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