Vacuum die-casting device of support aluminum alloy die-casting die

Abstract

The invention discloses a vacuum die-casting device of a support aluminum alloy die-casting die, and belongs to the technical field of die-casting devices.The vacuum die-casting device of the support aluminum alloy die-casting die comprises a support assembly, the support assembly comprises a first vertical plate and a connecting rod, and a plurality of second vertical plates are connected between the first vertical plate and the connecting rod; a fixed mold assembly is arranged at one end of the second vertical plate, a movable mold assembly matched with the fixed mold assembly is movably arranged at the other end of the second vertical plate, an automatic ejection assembly matched with the movable mold assembly is arranged on the fixed mold assembly, and a vacuumizing assembly matched with the fixed mold assembly is arranged on the movable mold assembly. The injection filling assembly matched with the fixed die assembly is arranged on the first vertical plate, a moving assembly connected with the movable die assembly is arranged between the second vertical plate and the fixed die assembly, and the injection filling device has the advantages of being efficient in vacuumizing, stable in sealing, rapid in die casting, safe, capable of preventing leakage, automatic in ejection, reliable in structure, convenient and fast to operate, simple, convenient and practical.

Description

Technical Field

[0001] This invention relates to the field of die-casting equipment technology, specifically to a vacuum die-casting device for a support aluminum alloy die-casting mold. Background Technology

[0002] Die casting equipment is a complete production system that uses high pressure to inject molten metal at high speed into a precision mold cavity, where it cools and solidifies to form a casting. The core equipment is the die casting machine, along with matching molds and peripheral equipment. It is suitable for the efficient and precise forming of metals such as aluminum alloys and zinc alloys. Die casting equipment can be divided into two main categories: hot chamber die casting machines and cold chamber die casting machines.

[0003] Currently, some existing vacuum die-casting devices for die-casting molds do not have effective sealing between the fixed mold and the moving mold, which may result in insufficient vacuum in the die-casting chamber. This could lead to excessive porosity in the castings, reducing their stability in subsequent use. At the same time, it is impossible to achieve automatic ejection of the castings, affecting the production efficiency of the castings.

[0004] Therefore, there is a need to provide a vacuum die-casting device for aluminum alloy die-casting molds to solve the above problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a vacuum die-casting device for aluminum alloy die-casting molds to solve the problems mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A vacuum die-casting device for an aluminum alloy die-casting mold for a support includes a support assembly. The support assembly includes a first upright plate and a connecting rod, and a plurality of second upright plates are connected between the first upright plate and the connecting rod. The device also includes:

[0008] The fixed mold assembly is located at one end of the second vertical plate;

[0009] The moving mold assembly is movably located at the other end of the second vertical plate and cooperates with the fixed mold assembly;

[0010] An automatic ejection assembly is mounted on the fixed mold assembly and cooperates with the moving mold assembly. The automatic ejection assembly is used to automatically eject the product casting.

[0011] The vacuuming assembly is mounted on the moving mold assembly and cooperates with the fixed mold assembly;

[0012] The injection filling assembly is located on the upright plate and mates with the fixed mold assembly;

[0013] The movable component is located between the upright plate and the fixed mold component and is connected to the moving mold component.

[0014] As a further embodiment of the present invention, the fixed mold assembly includes a fixed plate disposed on a plurality of upright plates II. A plurality of limiting rings abutting against the sidewalls of the fixed plate are installed on the upright plates II. The plurality of limiting rings are distributed on both sides of the fixed plate. A fixed mold is provided on the side of the fixed plate away from the injection filling assembly. A die casting groove is provided on the side of the fixed mold away from the fixed plate.

[0015] As a further embodiment of the present invention, the depth of the first die-casting tank and the depth of the second die-casting tank are the same.

[0016] As a further embodiment of the present invention, the moving mold assembly includes a movable plate slidably disposed on the second vertical plate, and a moving mold that cooperates with the fixed mold is installed on the side of the movable plate near the fixed plate. The moving mold has a second die-casting groove corresponding to the first die-casting groove on the side near the fixed mold.

[0017] As a further embodiment of the present invention, the movable component includes a screw rotatably disposed between the upright plate and the fixed plate. Two screws are provided and symmetrically distributed at the upper and lower ends of the fixed plate. Each end of the two screws is connected to a pulley, and the two pulleys are connected to each other by a transmission belt. The movable plate is provided with a threaded cylinder that is threadedly connected to the screws. The fixed plate is equipped with a motor connected to one of the screws.

[0018] As a further embodiment of the present invention, the automatic ejection assembly includes several grooves formed on the fixed plate and the fixed mold, the grooves corresponding to the die-casting grooves, and ejection rods slidably disposed within the grooves. The ends of the ejection rods away from the moving mold assembly are connected by a connecting frame located on the side of the fixed plate away from the fixed mold. The two ends of the fixed mold are movably provided with abutment plates, which are connected to the connecting frame by sliding rods that slide with the fixed plate. A spring sleeved on the outside of the sliding rod is connected between the fixed plate and the abutment plates. The two ends of the moving mold are respectively provided with abutment plates corresponding to the abutment plates, which are connected to the movable plate through grooves.

[0019] As a further embodiment of the present invention, the vacuum assembly includes air extraction holes formed on the movable plate and the moving mold. A processing box is provided on the side wall of the movable plate away from the moving mold. The processing box contains a vacuum pump and an inflation pump. A vacuum shut-off valve corresponding to the air extraction hole is installed on the movable plate. The vacuum shut-off valve is connected to the vacuum pump in the processing box through an air extraction pipe. An installation ring frame is provided at the end of the side wall of the moving mold away from the movable plate. An annular groove is provided on the inner side of the installation ring frame. A sealing airbag ring is provided in the annular groove. The sealing airbag ring is connected to the inflation pump in the processing box through an air guide pipe.

[0020] As a further embodiment of the present invention, the mounting ring frame is configured as a ring frame with a C-shaped cross-section.

[0021] As a further embodiment of the present invention, the injection filling assembly includes an injection port disposed on a fixed plate and a fixed mold, an injection tube corresponding to the injection port is connected between the fixed plate and the first vertical plate, a pusher corresponding to the inside of the injection tube is installed on the first vertical plate, a liquid storage tube is connected to the top of the end of the injection tube away from the fixed plate, and the liquid storage tube is connected to one side wall of the first vertical plate through an installation ring.

[0022] As a further embodiment of the present invention, the liquid storage tube is provided with a stirring module, a heater and a temperature sensor.

[0023] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art:

[0024] 1. In this invention, the fixed mold assembly and the moving mold assembly work together to form the die-casting chamber required for die-casting products. The vacuum pump assembly can extract the air from the chamber to maintain a vacuum, while simultaneously sealing the fixed mold assembly and the moving mold assembly to avoid excessive porosity in the product casting due to insufficient vacuum. Furthermore, the sealing design improves the pumping efficiency and effect. The injection filling assembly can quickly fill the die-casting chamber with molten aluminum alloy, facilitating rapid die-casting of the product casting. The moving assembly, connected to the moving mold assembly, moves the moving mold assembly, opening the die-casting chamber. The automatic ejection assembly automatically ejects the die-cast product casting by moving away from the moving mold assembly. This invention offers the advantages of efficient vacuuming, stable sealing, rapid die-casting, leak-proof safety, automatic ejection, reliable structure, convenient operation, and ease of use.

[0025] 2. In this invention, a vacuum pump is connected to a vacuum pipe and a vacuum shut-off valve to extract gas from the die-casting chamber through a vacuum hole, thereby achieving vacuum treatment of the die-casting chamber. At the same time, an inflation pump inflates the sealing airbag ring through a gas guide pipe. The inflation and expansion of the sealing airbag ring causes the inner wall of the sealing airbag ring to fit against the connection seam between the fixed mold and the moving mold, thereby sealing the die-casting chamber. This effectively prevents the risk of air leakage, avoids the problem of excessive porosity in the product casting due to insufficient vacuum, and improves the stability of die casting.

[0026] 3. In this invention, the stirring module ensures uniform distribution of alloying elements and avoids inconsistent performance of product castings due to local composition deviations. The combination of the stirring module and the heater can effectively ensure uniform temperature of the aluminum alloy solution.

[0027] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0028] Figure 1 This is a perspective view of the present invention.

[0029] Figure 2 This is a rear view of the present invention.

[0030] Figure 3 This is a schematic diagram of the ejected state of the present invention.

[0031] Figure 4 This is a schematic diagram of the automatic ejection component in this invention.

[0032] Figure 5 This is an exploded view of the vacuum pumping component in this invention.

[0033] Figure 6 This is a schematic diagram of the fixed mold structure in this invention.

[0034] Figure 7 This is a schematic diagram of the moving mold in this invention.

[0035] Reference numerals: 1. Support assembly; 101. First upright plate; 102. Second upright plate; 103. Connecting rod; 104. Reinforcing rib;

[0036] 2. Fixed mold assembly; 201. Fixing plate; 202. Limiting ring; 203. Fixed mold; 204. Die casting groove one;

[0037] 3. Automatic ejection assembly; 301. Connecting frame; 302. Ejection rod; 303. Slide rod; 304. Abutment plate one; 305. Spring; 306. Fixing rod; 307. Abutment plate two; 308. Slide groove;

[0038] 4. Moving mold assembly; 401. Movable plate; 402. Moving mold; 403. Die-casting groove two;

[0039] 5. Vacuum assembly; 501. Processing box; 502. Evacuation pipe; 503. Vacuum shut-off valve; 504. Evacuation port; 505. Air guide pipe; 506. Sealing airbag ring; 507. Mounting ring frame;

[0040] 6. Injection filling assembly; 601. Propeller; 602. Liquid reservoir; 603. Injection tube; 604. Injection port; 605. Mounting ring;

[0041] 7. Moving components; 701. Motor; 702. Screw; 703. Pulley; 704. Drive belt; 705. Threaded drum;

[0042] 8. Product castings. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0044] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0045] In one embodiment of the present invention, see Figures 1-3 A vacuum die-casting device for a bracket aluminum alloy die-casting mold includes a bracket assembly 1. The bracket assembly 1 includes a first vertical plate 101 and a connecting rod 103. A plurality of second vertical plates 102 are connected between the first vertical plate 101 and the connecting rod 103. A fixed mold assembly 2 is provided at one end of the second vertical plate 102, and a moving mold assembly 4 that cooperates with the fixed mold assembly 2 is movably provided at the other end of the second vertical plate 102. An automatic ejection assembly 3 that cooperates with the moving mold assembly 4 is provided on the fixed mold assembly 2. The automatic ejection assembly 3 is used to automatically eject the product casting 8. A vacuum pumping assembly 5 that cooperates with the fixed mold assembly 2 is provided on the moving mold assembly 4. An injection filling assembly 6 that cooperates with the fixed mold assembly 2 is provided on the first vertical plate 101. A moving assembly 7 that connects to the moving mold assembly 4 is provided between the second vertical plate 102 and the fixed mold assembly 2.

[0046] In this embodiment, the fixed mold assembly 2 and the moving mold assembly 4 work together to form the die-casting chamber required for the die-cast product casting 8. The vacuum pump assembly 5 can extract the air from the chamber to maintain a vacuum, and at the same time, it can achieve a seal between the fixed mold assembly 2 and the moving mold assembly 4, avoiding the problem of excessive porosity in the product casting 8 due to insufficient vacuum. Furthermore, the sealing setting can improve the pumping efficiency and effect. The injection filling assembly 6 can quickly fill the die-casting chamber with aluminum alloy solution, facilitating the rapid die-casting of the product casting 8. The moving assembly 7 drives the moving mold assembly 4 to move by connecting to it, which can open the die-casting chamber. The automatic ejection assembly 3 automatically ejects the product casting 8 after die-casting by moving away from the moving mold assembly 4. It has the effects of efficient vacuum pumping, stable sealing, rapid die-casting, safe leakage prevention, automatic ejection, reliable structure, convenient operation, and simple and practicality.

[0047] The first upright plate 101 and the connecting rod 103 are both L-shaped plates. The first upright plate 101 and the connecting rod 103 are provided with several reinforcing ribs 104. The several reinforcing ribs 104 can provide stable support for the first upright plate 101 and the connecting rod 103. The second upright plate 102 is provided with four ribs, which can realize a stable connection between the first upright plate 101 and the connecting rod 103.

[0048] In one embodiment of the present invention, see Figures 1-7 The fixed mold assembly 2 includes a fixed plate 201 disposed on a plurality of upright plates 102. A plurality of limiting rings 202 are installed on the upright plates 102 and abut against the side wall of the fixed plate 201. The plurality of limiting rings 202 are distributed on both sides of the fixed plate 201. A fixed mold 203 is provided on the side of the fixed plate 201 away from the injection filling assembly 6. A die casting groove 204 is provided on the side of the fixed mold 203 away from the fixed plate 201.

[0049] The moving mold assembly 4 includes a movable plate 401 that is slidably disposed on the second vertical plate 102. The movable plate 401 is equipped with a moving mold 402 that cooperates with the fixed mold 203 on the side near the fixed plate 201. The moving mold 402 is provided with a second die casting groove 403 that corresponds to the first die casting groove 204 on the side near the fixed mold 203.

[0050] The movable component 7 includes two screws 702 rotatably disposed between the upright plate 102 and the fixed plate 201. The screws 702 are provided and symmetrically distributed at the upper and lower ends of the fixed plate 201. Each end of the two screws 702 is connected to a pulley 703. The two pulleys 703 are connected to each other by a transmission belt 704. The movable plate 401 is provided with a threaded cylinder 705 that is threadedly connected to the screws 702. The fixed plate 201 is equipped with a motor 701 that is connected to one of the screws 702.

[0051] In this embodiment, in the initial state, the fixed mold 203 and the moving mold 402 are far apart from each other, and at this time, the injection filling assembly 6 does not perform injection operation.

[0052] When die casting is required, motor 701 drives one of the screws 702 to rotate clockwise. Screw 702 drives the other screw 702 to rotate synchronously through pulley 703 and transmission belt 704. Screw 702 drives movable plate 401 to move closer to fixed plate 201 through threaded connection with threaded cylinder 705 and sliding engagement between movable plate 401 and vertical plate 102, so that die casting tank 1 204 and die casting tank 2 403 fit together. The space enclosed between die casting tank 1 204 and die casting tank 2 403 is the die casting chamber. The injection filling component 6 injects aluminum alloy solution into the die casting chamber. After cooling, the final product casting 8 is formed.

[0053] When the product casting 8 needs to be ejected, the motor 701 drives one of the screws 702 to rotate counterclockwise. The screw 702 drives the other screw 702 to rotate synchronously through the connection of the pulley 703 and the transmission belt 704. The screw 702 drives the movable plate 401 away from the fixed plate 201 through the threaded connection with the threaded cylinder 705 and the sliding fit between the movable plate 401 and the vertical plate 102, thereby releasing the contact between the fixed mold 203 and the movable mold 402, opening the die casting chamber, and facilitating the ejection of the product casting 8.

[0054] The depth of the first die-casting tank 204 is the same as the depth of the second die-casting tank 403, which facilitates uniform heat dissipation of the product casting 8 and also facilitates the ejection of the product casting 8, avoiding the problem that the product casting 8 is inconvenient to eject due to the inconsistency between the depth of the first die-casting tank 204 and the second die-casting tank 403.

[0055] In one embodiment of the present invention, see Figures 1-5 The automatic ejection assembly 3 includes several grooves 308 formed on the fixed plate 201 and the fixed mold 203. The grooves 308 correspond to the die-casting groove 204. Ejection rods 302 are slidably arranged in the grooves 308. The ends of the ejection rods 302 away from the moving mold assembly 4 are connected by a connecting frame 301 located on the side of the fixed plate 201 away from the fixed mold 203. The two ends of the fixed mold 203 are movably provided with abutment plates 304. The abutment plates 304 are connected to the connecting frame 301 through a sliding rod 303 that slides with the fixed plate 201. A spring 305 sleeved on the outside of the sliding rod 303 is connected between the fixed plate 201 and the abutment plates 304. The two ends of the moving mold 402 are respectively provided with abutment plates 307 corresponding to the abutment plates 304. The abutment plates 307 are connected to the moving plate 401 through the grooves 308.

[0056] In this embodiment, when the fixed mold 203 and the moving mold 402 are in contact with each other, the die-casting chamber is formed, which facilitates the die-casting operation of the aluminum alloy solution. At this time, the first abutment plate 304 and the corresponding second abutment plate 307 abut with each other, the slide bar 303 is in a compressed state, and the connecting frame 301 is away from the fixed plate 201.

[0057] After die casting is completed, the moving component 7 releases the contact between the fixed mold 203 and the moving mold 402 by moving the movable plate 401 away from the fixed plate 201, the die casting chamber opens, the movable plate 401 drives the second abutment plate 307 to move synchronously by connecting with the slide groove 308, the extrusion pressure on the first abutment plate 304 decreases, the slide rod 303 returns to its original length, the slide rod 303 drives several ejection rods 302 to move synchronously by connecting with the first abutment plate 304 and the spring 305 and the connecting frame 301, the several ejection rods 302 push out the product casting 8 located in the first die casting groove 204 by sliding cooperation with the slide groove 308, which can realize the automatic ejection of the product casting 8.

[0058] The connecting frame 301 is set as an O-ring frame, which can effectively avoid interference with the injection filling component 6. The end face of the ejector rod 302 away from the connecting frame 301 and the side of the abutment plate 304 away from the connecting frame 301 are on the same vertical plane.

[0059] In one embodiment of the present invention, see Figures 1-3 , Figure 5 and Figure 7 The vacuum assembly 5 includes an air extraction hole 504 formed on the movable plate 401 and the moving mold 402. A processing box 501 is provided on the side wall of the movable plate 401 away from the moving mold 402. The processing box 501 is equipped with a vacuum pump and an air pump (not shown in the figure). A vacuum shut-off valve 503 corresponding to the air extraction hole 504 is installed on the movable plate 401. The vacuum shut-off valve 503 is connected to the vacuum pump in the processing box 501 through an air extraction pipe 502. An installation ring frame 507 is provided at the end of the side wall of the moving mold 402 away from the movable plate 401. An annular groove is provided on the inner side of the installation ring frame 507. A sealing airbag ring 506 is provided in the annular groove. The sealing airbag ring 506 is connected to the air pump in the processing box 501 through an air guide pipe 505.

[0060] In this embodiment, in the initial state, the fixed mold 203 and the moving mold 402 are far apart from each other, the sealing airbag ring 506 is in an uninflated state, and there is a gap between the inner sidewall of the sealing airbag ring 506 and the moving mold 402.

[0061] Motor 701 drives one screw 702 to rotate clockwise. Screw 702 drives the other screw 702 to rotate synchronously through pulley 703 and transmission belt 704. Screw 702 drives the movable plate 401 to move closer to the fixed plate 201 through threaded connection with threaded cylinder 705 and sliding engagement between movable plate 401 and vertical plate 102, so that die casting tank 1 204 and die casting tank 2 403 fit together. The space enclosed between die casting tank 1 204 and die casting tank 2 403 is the die casting chamber. Vacuum pump extracts the gas in the die casting chamber through the extraction hole 504 through extraction pipe 502 and vacuum shut-off valve 503, realizing vacuum treatment of die casting chamber.

[0062] Meanwhile, the air pump inflates the sealing airbag ring 506 through the air guide pipe 505. The inflation and expansion of the sealing airbag ring 506 causes the inner wall of the sealing airbag ring 506 to fit into the connection seam between the fixed mold 203 and the moving mold 402, thereby sealing the die-casting chamber. This effectively prevents the risk of air leakage, avoids the problem of excessive porosity in the product casting 8 due to insufficient vacuum, and improves the stability of die casting.

[0063] The mounting ring frame 507 is designed with a C-shaped cross-section to facilitate stable support for the sealing airbag ring 506.

[0064] In one embodiment of the present invention, see Figures 1-3The injection filling assembly 6 includes an injection port 604 disposed on the fixed plate 201 and the fixed mold 203. An injection tube 603 corresponding to the injection port 604 is connected between the fixed plate 201 and the vertical plate 101. An injector 6010 corresponding to the inside of the injection tube 603 is installed on the vertical plate 101. A liquid storage tube 602 is connected to the top of the end of the injection tube 603 away from the fixed plate 201. The liquid storage tube 602 is connected to the side wall of the vertical plate 101 through an installation ring 605.

[0065] In this embodiment, the aluminum alloy solution can be stored in the liquid storage tube 602. When the fixed mold 203 and the moving mold 402 are far apart, the pusher 601 is at its original length and will not inject the aluminum alloy solution. When the fixed mold 203 and the moving mold 402 are in contact with each other and the die casting chamber is in a vacuum state, the pusher 601 extends and quickly injects the aluminum alloy solution in the injection tube 603 into the die casting chamber through the injection port 604, thereby realizing the rapid die casting process of the product casting 8.

[0066] The liquid storage tube 602 is equipped with a stirring module, a heater and a temperature sensor (not shown in the figure). The stirring module, heater and temperature sensor all adopt existing technology. The stirring module ensures that the alloy elements are evenly distributed and avoids inconsistent performance of the product casting 8 due to local composition deviation. The cooperation of the stirring module and the heater can effectively ensure the uniform temperature of the aluminum alloy solution.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vacuum die-casting device for an aluminum alloy die-casting mold, characterized in that, The support assembly (1) includes a support plate (101) and a connecting rod (103), wherein a plurality of support plates (102) are connected between the support plate (101) and the connecting rod (103), and further includes: The fixed mold assembly (2) is located at one end of the upright plate (102); The moving mold assembly (4) is movably located at the other end of the upright plate (102) and cooperates with the fixed mold assembly (2); An automatic ejection assembly (3) is provided on the fixed mold assembly (2) and cooperates with the moving mold assembly (4). The automatic ejection assembly (3) is used to automatically eject the product casting (8). The vacuum assembly (5) is mounted on the moving mold assembly (4) and cooperates with the fixed mold assembly (2); The injection filling assembly (6) is mounted on the upright plate (101) and cooperates with the fixed mold assembly (2); The movable component (7) is located between the upright plate (102) and the fixed mold component (2) and is connected to the moving mold component (4).

2. The vacuum die-casting apparatus for the aluminum alloy die-casting mold of the bracket according to claim 1, characterized in that, The fixed mold assembly (2) includes a fixed plate (201) disposed on a plurality of upright plates (102). A plurality of limiting rings (202) abutting against the side wall of the fixed plate (201) are installed on the upright plates (102). The plurality of limiting rings (202) are distributed on both sides of the fixed plate (201). A fixed mold (203) is provided on the side of the fixed plate (201) away from the injection filling assembly (6). A die casting groove (204) is provided on the side of the fixed mold (203) away from the fixed plate (201).

3. The vacuum die-casting device for the aluminum alloy die-casting mold of the bracket according to claim 2, characterized in that, The depth of the first die-casting tank (204) is the same as the depth of the second die-casting tank (403).

4. The vacuum die-casting device for the aluminum alloy die-casting mold of the bracket according to claim 2, characterized in that, The moving mold assembly (4) includes a movable plate (401) that is slidably disposed on the second vertical plate (102). The movable plate (401) is equipped with a moving mold (402) that cooperates with the fixed mold (203) on the side near the fixed plate (201). The moving mold (402) is provided with a second die casting groove (403) that corresponds to the first die casting groove (204) on the side near the fixed mold (203).

5. The vacuum die-casting device for the aluminum alloy die-casting mold of the bracket according to claim 4, characterized in that, The moving component (7) includes a screw (702) rotatably disposed between the upright plate (102) and the fixed plate (201). The screw (702) has two screws symmetrically distributed at the upper and lower ends of the fixed plate (201). The ends of the two screws (702) are connected to pulleys (703). The two pulleys (703) are connected to each other by a transmission belt (704). The movable plate (401) is provided with a threaded cylinder (705) threadedly connected to the screw (702). The fixed plate (201) is equipped with a motor (701) connected to one of the screws (702).

6. The vacuum die-casting apparatus for the aluminum alloy die-casting mold of the bracket according to claim 2, characterized in that, The automatic ejection assembly (3) includes several grooves (308) formed on the fixed plate (201) and the fixed mold (203). The grooves (308) correspond to the die-casting groove (204). Ejection rods (302) are slidably arranged in the grooves (308). The ends of several ejection rods (302) away from the moving mold assembly (4) are connected by a connecting frame (301) located on the side of the fixed plate (201) away from the fixed mold (203). The two ends of the fixed mold (203) are movably provided with abutment plates. (304) The first abutment plate (304) is connected to the connecting frame (301) through a sliding rod (303) that slides with the fixed plate (201). A spring (305) sleeved on the outside of the sliding rod (303) is connected between the fixed plate (201) and the first abutment plate (304). The two ends of the moving mold (402) are respectively provided with abutment plates (307) corresponding to the first abutment plate (304). The second abutment plate (307) is connected to the moving plate (401) through a sliding groove (308).

7. The vacuum die-casting apparatus for the aluminum alloy die-casting mold of the bracket according to claim 4, characterized in that, The vacuum assembly (5) includes an air extraction hole (504) on the movable plate (401) and the moving mold (402). A processing box (501) is provided on the side wall of the movable plate (401) away from the moving mold (402). A vacuum pump and an air pump (not shown in the figure) are provided in the processing box (501). A vacuum shut-off valve (503) corresponding to the air extraction hole (504) is installed on the movable plate (401). The vacuum shut-off valve (503) is connected to the vacuum pump in the processing box (501) through the air extraction pipe (502). An installation ring frame (507) is provided at the end of the side wall of the moving mold (402) away from the movable plate (401). An annular groove is provided on the inner side of the installation ring frame (507). A sealing airbag ring (506) is provided in the annular groove. The sealing airbag ring (506) is connected to the air pump in the processing box (501) through the air guide pipe (505).

8. The vacuum die-casting apparatus for the aluminum alloy die-casting mold of the bracket according to claim 7, characterized in that, The mounting ring frame (507) is configured as a ring frame with a C-shaped cross section.

9. The vacuum die-casting apparatus for the aluminum alloy die-casting mold of the bracket according to claim 2, characterized in that, The injection filling assembly (6) includes an injection port (604) disposed on a fixed plate (201) and a fixed mold (203). An injection tube (603) corresponding to the injection port (604) is connected between the fixed plate (201) and the first vertical plate (101). A pusher (6010) corresponding to the inside of the injection tube (603) is installed on the first vertical plate (101). A liquid storage tube (602) is connected to the top of the end of the injection tube (603) away from the fixed plate (201). The liquid storage tube (602) is connected to the side wall of the first vertical plate (101) through an installation ring (605).

10. The vacuum die-casting apparatus for the aluminum alloy die-casting mold of the bracket according to claim 9, characterized in that, The liquid storage tube (602) is equipped with a stirring module, a heater and a temperature sensor.

Images