A high-strength die-cast aluminum alloy forming demoulding processing device

Abstract

The present invention relates to the technical field of aluminum alloy production, and specifically to a high-strength die-casting aluminum alloy forming demolding processing device, comprising a detachably connected mold A and a mold B. When the two are in a fitted state, a die-casting cavity is formed in the middle of the two. A pouring pipe for pouring aluminum solution is provided on the lower side of the mold A, and two frames are sleeved on the outer sides of the mold B. A piston tube A is provided on the frame. A cavity A is provided in the mold A, and a moving part is movably connected in the cavity A. A movable groove is provided in the movable part, and a movable plate is movably connected in the movable groove. When the mold A is separated from the mold B, the gas in the piston tube A enters the movable groove and drives the movable plate to move toward the die-casting cavity to assist in demolding. Through the provided movable part and movable plate, the displacement when the mold is separated is utilized in the demolding process, and the gas is used as a medium to intermittently drive the movable plate to vibrate and cooperate with the gas pressure, while acting on the outer wall of the formed aluminum profile, thereby improving the demolding effect.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum alloy production, and in particular to a high-strength die-casting aluminum alloy forming and demoulding processing device. Background Art

[0002] Die casting is a process of metal smelting. It is a casting method in which molten alloy liquid is filled into the cavity of a steel mold at high speed under the action of high pressure, and the alloy liquid is solidified under pressure to form a casting. According to the specific structural shape of the part, a corresponding mold is made, and then a fluid liquid is poured into the die casting cavity. After subsequent condensation and demoulding procedures, the formed casting can be taken out. The demoulding method of existing die casting equipment is to use a push rod set in the mold. When the mold is displaced, the push rod in the corresponding mold will extend from the mold and directly act on the outer wall of the casting. The position of the push rod usually remains unchanged, but the adhesion between the casting and the inner wall of the mold is random. For example, the release agent is sprayed unevenly. The push rod in a fixed position is easy to cause marks on the surface of the die casting during the demoulding process, affecting the product quality. In view of this, we propose a high-strength die-casting aluminum alloy forming demoulding processing device. Summary of the Invention

[0003] In response to the above-mentioned shortcomings of the prior art, the present invention provides a high-strength die-cast aluminum alloy forming demolding processing device, which can effectively solve the problem that the demolding method of the existing die-casting equipment is through a push rod set in the mold. When the mold is displaced, the push rod in the corresponding mold will extend out of the mold and directly act on the outer wall of the casting, and the position of the push rod usually remains unchanged, but the adhesion force between the casting and the inner wall of the mold is random, for example, the release agent is sprayed unevenly, and the push rod in the fixed position is easy to cause marks on the surface of the die-casting during the demolding process, affecting the product quality.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0005] The present invention provides a high-strength die-cast aluminum alloy forming demolding processing device, comprising a detachably connected mold A and a mold B. When the two are in a bonded state, a die-casting cavity is formed in the middle of the two. A pouring pipe for pouring aluminum solution is provided on the lower side of the mold A, and two frames are sleeved on the outer sides of the mold B. The frames are provided with piston tubes A.

[0006] A cavity A is provided in the mold A, a movable part is movably connected in the cavity A, a movable groove is provided in the movable part, and a movable plate is movably connected in the movable groove. When the mold A is separated from the mold B, the gas in the piston tube A enters the movable groove and drives the movable plate to move toward the die-casting cavity to assist in demolding;

[0007] There are overlapping blocks fixedly installed on both sides of mold B, and a overlapping plate is movably connected to the frame. A nozzle pipe for spraying release agent is fixedly connected to the overlapping plate. When mold B and mold A approach each other, the nozzle pipe will be pulled out from between mold A and mold B.

[0008] Furthermore, an inclined surface is provided on cavity A near the die-casting cavity, and the movable part and cavity A are slidably fitted together. The outer wall of the movable part is elastically connected to the inner wall of cavity A through spring A, and cavity A is connected to the hose through a connecting groove provided on mold A, and the hose is connected to piston tube A; the movable groove is connected to cavity A through a circular hole, and the outer wall of the movable plate is slidably fitted with the inner wall of the movable groove, and the movable plate separates cavity A from the movable groove; the outer wall of the movable plate and the cavity wall of the die-casting cavity on mold A are on the same plane, and when the gas flows from the piston tube A through the hose into the interior of cavity A, the movable part will move toward the side away from the die-casting cavity, and the corresponding movable plate will squeeze the casting, and at the same time the gas will blow toward the die-casting cavity along the inclined surface.

[0009] Furthermore, the piston tube A is fixedly connected to the outer wall of the frame, and a piston rod A is movably connected inside the piston tube A. The piston rod A is fixedly connected to the outer wall of the overlapping block, and the overlapping plate is elastically connected to the outer wall of the frame through a spring B. A slope A is provided on the side wall of the overlapping block, and a slope B is provided on the overlapping plate. The slope A and the slope B are slidably matched. When the mold A and the mold B approach each other, relative sliding occurs between the corresponding overlapping block and the overlapping plate, and the overlapping plate drives the nozzle tube to be pulled out of the die-casting cavity.

[0010] Furthermore, it also includes a sleeve fixedly installed in the middle position of the outer wall of the mold B, a slide groove is provided inside the sleeve, a cylindrical part is movably connected in the slide groove, the outer end of the cylindrical part is elastically connected to the outer wall of the sleeve through a spring C, the inner end face of the cylindrical part and the cavity wall of the die-casting cavity are in the same plane, and an arc block is symmetrically fixedly installed on the outer end of the cylindrical part; and a piston tube B is arranged on one side of the mold B, a piston rod B is movably connected in the piston tube B, the piston rod B extends through the piston tube B to the outside and is fixedly connected to a cross frame, an arc surface is provided at the lower end of the cross frame, the arc surface and the arc block are slidably fitted together, and the piston tube B is also kept in communication with the hose.

[0011] Furthermore, it also includes a resistance tube movably connected in the cylindrical part, a through groove is provided inside the resistance tube, and a plurality of air outlet holes are provided in a ring-shaped structure at the end of the through groove. The resistance tube extends through the cylindrical part to the outside where a connecting pipe is fixedly installed, and the connecting pipe is kept in communication with the air extraction end of the external air pump; it also includes a circular ring fixedly installed on the outer wall of the resistance tube, the circular ring slides with the sliding groove provided in the cylindrical part, and the circular ring is elastically connected to the inner wall of the sliding groove through a spring D.

[0012] Furthermore, it also includes a contact switch arranged on the outer wall of the sleeve, which is used to control the power state of the spring D; when the outer wall of the cylindrical part contacts the contact switch, the spring D is energized; when the spring D is in the energized state, it will contract and cause the resistance tube to extend out of the cylindrical part to assist in demolding.

[0013] Compared with the known public technologies, the technical solution provided by the present invention has the following beneficial effects:

[0014] The present invention utilizes the displacement of the mold during separation by setting up moving parts and moving plates, uses gas as a medium to intermittently drive the moving plate to vibrate in coordination with the gas pressure, and simultaneously acts on the outer wall of the formed aluminum profile to improve the demoulding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0016] Figure 1 It is a schematic diagram of the overall structure of the demoulding equipment of the present invention;

[0017] Figure 2 This is a structural schematic diagram of the present invention when mold A and mold B are separated;

[0018] Figure 3 Schematic diagram of the cross-sectional structure of cavity A of the present invention;

[0019] Figure 4 This is a schematic diagram of the explosion structure of the mold B of the present invention;

[0020] Figure 5 This is a schematic diagram of the explosion structure at the lap plate of the present invention;

[0021] Figure 6 This is a structural diagram of the cylindrical member and the piston tube B of the present invention when they are separated;

[0022] Figure 7 It is a schematic diagram of the cross-sectional structure of the cylindrical member of the present invention.

[0023] Reference numerals:

[0024] 100, mold A; 101, cavity A; 102, inclined surface; 103, connecting groove; 110, casting pipe; 120, hose;

[0025] 200, mold B; 210, overlap block; 211, inclined surface A; 220, sleeve; 221, contact switch; 222, slide;

[0026] 300, moving part; 301, movable slot; 310, spring A; 320, moving plate;

[0027] 400, frame; 410, piston tube A;

[0028] 500, lap plate; 501, inclined plane B; 510, nozzle tube; 520, spring B;

[0029] 600, cylindrical member; 601, sliding groove; 610, spring C; 620, arc block;

[0030] 700, conflict tube; 701, air outlet; 710, connecting tube; 720, spring D;

[0031] 800, piston tube B; 810, cross frame; 811, curved surface. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. 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 any creative efforts shall fall within the scope of protection of the present invention.

[0033] The present invention will be further described below with reference to the embodiments.

[0034] Refer to the attached Figure 1-Figure 7 As shown in the figure, a high-strength die-casting aluminum alloy forming demolding processing device includes a detachably connected mold A100 and a mold B200. When the two are in a fitted state, a die-casting cavity is formed in the middle of the two. A pouring tube 110 for pouring aluminum solution is provided on the lower side of the mold A100. In the present application, the die-casting is achieved by placing the aluminum solution in the pouring tube 110, and then moving the driving shaft movably connected in the pouring tube 110 to one side, so that the aluminum solution in the pouring tube 110 is pushed to the internal position of the die-casting cavity to achieve die-casting. It should be noted that in the die-casting link, a stable overlap is maintained between the corresponding mold A100 and the mold B200, and a die-casting cavity is formed in the middle of the two. After the aluminum solution is pushed into the die-casting cavity, it is pressurized by the driving shaft. After a certain period of time, the temperature is reduced and the corresponding aluminum profile can be die-cast.

[0035] Before die-casting, in order to ensure the high efficiency of subsequent demolding, it is necessary to evenly spray the release agent on the inner wall of the die-casting cavity. The existing spraying method is manual spraying, which is less efficient. However, in this application, the mold B200 is fixedly installed with a lap block 210 on both sides, and the frame 400 is movably connected with a lap plate 500. The lap plate 500 is fixedly connected with a nozzle tube 510 for spraying the release agent. When the mold B200 and the mold A100 are close to each other, the nozzle tube 510 will be pulled out from between the mold A100 and the mold B200. In addition, a slope A211 is provided on the side wall of the overlapping block 210, and a slope B501 is provided on the overlapping plate 500. The slope A211 and the slope B501 are slidably matched. When the mold A100 and the mold B200 approach each other, relative sliding occurs between the corresponding overlapping block 210 and the overlapping plate 500, and the overlapping plate 500 drives the nozzle tube 510 to be pulled out of the die-casting cavity.

[0036] During the spraying process of the release agent, when mold A100 and mold B200 approach each other, as an embodiment, in the present application, mold B200 can be driven toward one side of mold A100 by an external driving rod, and the position of corresponding mold A100 is relatively fixed. When mold B200 approaches the position of mold A100, the lap block 210 that is relatively fixed with mold B200 will also move synchronously, and the lap plate 500 is movably connected to the frame 400, and the side wall of the lap block 210 A bevel A211 is provided on the top, and a bevel B501 is provided on the lap plate 500. The bevel A211 and the bevel B501 are slidably fitted together. When the external driving rod is running, the corresponding two lap plates 500 will move away from each other, and the nozzle tube 510 fixedly installed on the lap plate 500 will also move synchronously. During spraying, the nozzle tube 510 is inside the die-casting cavity. When spraying is completed, the corresponding nozzle tube 510 will be removed from the die-casting cavity to ensure stable overlap between the mold A100 and the mold B200.

[0037] It is worth noting that in the present application, the end of the nozzle tube 510 is set as a rubber head. When the die-casting is completed, during the demoulding process, the corresponding mold A100 will move away from the mold B200. At this time, the two lap plates 500 will approach each other. During this process, the end of the nozzle tube 510 will contact the outside of the formed aluminum profile. On the one hand, the rubber head will not damage the outer wall of the aluminum profile. At the same time, the contact between the rubber head and the aluminum profile can also assist in demoulding. In addition, the piston tube A410 is fixedly connected to the outer wall of the frame 400, and the piston rod A is movably connected inside the piston tube A410. The piston rod A is fixedly connected to the outer wall of the lap block 210, and the lap plate 500 is elastically connected to the outer wall of the frame 400 through the spring B520. The spring B520 is provided to reset the lap plate 500, and the nozzle tube 510 is then placed between the middle of the mold A100 and the mold B200 to allow subsequent spraying of the release agent on the inner wall of the die-casting cavity.

[0038] During the die-casting process, when mold A100 and mold B200 are overlapped and a die-casting cavity is formed between the two, gas will exist in the corresponding die-casting cavity. In the subsequent die-casting process, when the aluminum melt is squeezed into the die-casting cavity by the external drive shaft, part of the air in the die-casting cavity will be squeezed into the aluminum melt. In addition, there is a certain amount of hydrogen in the aluminum melt itself. In this case, it is more important to fully discharge the gas in the die-casting cavity. If it is not discharged in time, more bubbles will form on the surface during the subsequent aluminum profile forming, affecting the quality.

[0039] Therefore, the present application also includes a solution for exhausting the air in the die-casting cavity. Specifically, it also includes a sleeve 220 fixedly installed in the middle of the outer wall of the mold B200, a slide groove 222 is provided inside the sleeve 220, and a cylindrical member 600 is movably connected in the slide groove 222. The outer end of the cylindrical member 600 is elastically connected to the outer wall of the sleeve 220 by a spring C610. The inner end surface of the cylindrical member 600 and the cavity wall of the die-casting cavity are in the same plane. It also includes a resistance tube 700 movably connected in the cylindrical member 600, and a through groove is provided inside the resistance tube 700. The end of the through groove is annularly provided with a plurality of air outlet holes 701. The resistance tube 700 passes through the cylindrical member 600 and extends to the outside where a connecting pipe 710 is fixedly installed. The connecting pipe 710 is connected to the air extraction end of the external air pump.

[0040] When mold A100 and mold B200 are in an overlapping state, and before die-casting, the position of the resistance tube 700 is adjusted, specifically, the resistance tube 700 is moved toward the position of mold A100, so that the end of the resistance tube 700 contacts the outer wall of the movable plate 320, and the end face of the movable plate 320 is in the same plane as the inner wall of the die-casting cavity. When the end of the resistance tube 700 contacts the outer wall of the movable plate 320, the air outlet 701 opened at the end position of the resistance tube 700 will remain connected with the die-casting cavity, and the external air pump, in conjunction with the connection between the internal groove of the resistance tube 700 and the air pump and the air outlet 701, can extract the gas in the die-casting cavity and form a relative vacuum state, thereby reducing the number of bubbles on the surface of the aluminum profile in the subsequent die-casting molding link and improving the die-casting quality. When the die-casting cavity is vacuumed, the resistance tube 700 is reset to prepare for die-casting.

[0041] When the die casting is completed, the demoulding operation needs to be performed. In order to improve the demoulding efficiency, in this application, the demoulding is assisted in the mold A100 and the mold B200 respectively. Specifically, on the one hand, the method of assisting the demoulding on the mold A100, in this application, includes two frames 400 arranged on the outer side of the mold B200, and a piston tube A410 is provided on the frame 400; a cavity A101 is provided in the mold A100, and a moving part 300 is movably connected in the cavity A101, and a movable groove 301 is provided in the movable part 300, and a movable plate 320 is movably connected in the movable groove 301. When the mold A100 is separated from the mold B200, the gas in the piston tube A410 enters the movable groove 301 and drives the movable plate 320 to move toward the die casting cavity to assist the demoulding; specifically, in the demoulding link, when ... When the die casting die 100 is separated from the die B200, the gas in the corresponding piston tube A410 enters the cavity A101 through the hose 120. At this time, the movable member 300 movably connected in the cavity A101 moves toward the side away from the die casting cavity. The corresponding gas enters the inner position of the die casting cavity from the outer wall of the movable plate 320 and inflates the contact surface between the aluminum profile and the die casting cavity. At this time, the aluminum profile and the die casting cavity are separated by the gas pressure.

[0042] Furthermore, in the present application, an inclined surface 102 is provided on the cavity A101 near the die-casting cavity, the movable part 300 and the cavity A101 are slidably matched, the outer wall of the movable part 300 is elastically connected to the inner wall of the cavity A101 through a spring A310, the cavity A101 is connected to the hose 120 through a connecting groove 103 provided on the mold A100, and the hose 120 is connected to the piston tube A410; the movable groove 301 is connected to the cavity A101 through a circular hole The outer wall of the movable plate 320 slides with the inner wall of the movable groove 301, and the movable plate 320 separates the cavity A101 from the movable groove 301; the outer wall of the movable plate 320 and the cavity wall of the die-casting cavity on the mold A100 are on the same plane. When the gas flows from the piston tube A410 through the hose 120 into the cavity A101, the movable part 300 will move toward the side away from the die-casting cavity, and the corresponding movable plate 320 will squeeze the casting, and the gas will blow toward the die-casting cavity along the inclined surface 102.

[0043] Specifically, when the gas enters the cavity A101, the corresponding movable plate 320 connected to the internal position of the movable part 300 will move toward the direction of the mold B200. The end face of the movable plate 320 is on the same horizontal plane with the cavity wall of the die-casting cavity before demolding. When the movable plate 320 moves toward the direction of the mold B200, the corresponding movable plate 320 will exert external force on the aluminum profile to achieve demolding. It should be noted that when the gas enters the die-casting cavity along the inclined surface 102, the cavity A101 can be depressurized. Under the action of the spring A310, the movable part 300 will reset, and the corresponding movable plate 320 will be in a state close to vibration. This knocking method can effectively improve the efficiency of demolding.

[0044] Regarding the demolding process, another way to improve the demolding efficiency is provided in the present application. Specifically, an arc block 620 is symmetrically fixedly installed on the outer end of the cylindrical part 600; and a piston tube B800 is arranged on one side of the mold B200. A piston rod B is movably connected inside the piston tube B800. The piston rod B extends through the piston tube B800 to the outside and is fixedly connected to a cross frame 810. An arc surface 811 is provided at the lower end of the cross frame 810. The arc surface 811 is slidably fitted with the arc block 620, and the piston tube B800 is also connected to the hose 120. Specifically in the present application, when mold A100 is separated from mold B200, the gas in the corresponding piston tube A410 will enter the internal position of the piston tube B800 through the hose 120. At this time, the piston rod B movably connected in the piston tube B800 will drive the cross frame 810 to move synchronously. In conjunction with the sliding fit between the arc surface 811 and the arc block 620, the corresponding cylindrical part 600 will slide in the slide groove 222, so that the end of the cylindrical part 600 will contact the outer wall of the aluminum profile. In conjunction with the movable plate 320 acting on the aluminum profile, the force acting on the aluminum profile can be increased, thereby improving the demolding effect.

[0045] Furthermore, the present application also includes a circular ring fixedly mounted on the outer wall of the resistance tube 700. The circular ring slides with the sliding groove 601 provided in the cylindrical member 600 and is elastically connected to the inner wall of the sliding groove 601 via a spring D720. A contact switch 221 is also provided on the outer wall of the sleeve 220. The contact switch 221 is used to control the power supply state of the spring D720. When the outer wall of the cylindrical member 600 contacts the contact switch 221, the spring D720 is energized. When the spring D720 is in the energized state, it contracts, causing the resistance tube 700 to extend from the cylindrical member 600 to assist in demolding. When the cylindrical member 600 is moved axially by the cross frame 810, the corresponding contact switch 221 is intermittently contacted, thereby enabling the resistance tube 700 to move out of the cylindrical member 600 and act on the aluminum profile, improving the demolding effect.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A high-strength die-cast aluminum alloy forming demoulding processing device, characterized in that: include: A die A (100) and a die B (200) are detachably connected. When the two are in a fitted state, a die-casting cavity is formed at the middle of the two. A pouring pipe (110) for pouring aluminum solution is provided on the lower side of the die A (100), and two frames (400) are sleeved on the outer sides of the die B (200). A piston tube A (410) is provided on the frame (400). A cavity A (101) is provided in the mold A (100), a movable member (300) is movably connected in the cavity A (101), a movable groove (301) is provided in the movable member (300), and a movable plate (320) is movably connected in the movable groove (301). When the mold A (100) is separated from the mold B (200), gas in the piston tube A (410) enters the movable groove (301) and drives the movable plate (320) to move toward the die-casting cavity to assist in demoulding. The mold B (200) is fixedly provided with overlapping blocks (210) on both sides, and the frame (400) is movably connected with an overlapping plate (500). The overlapping plate (500) is fixedly connected with a nozzle pipe (510) for spraying a release agent. When the mold B (200) and the mold A (100) are brought close to each other, the nozzle pipe (510) is pulled away from between the mold A (100) and the mold B (200); It also includes a sleeve (220) fixedly mounted at the middle position of the outer wall of the mold B (200), a slide groove (222) is provided inside the sleeve (220), a cylindrical member (600) is movably connected in the slide groove (222), the outer end of the cylindrical member (600) is elastically connected to the outer wall of the sleeve (220) through a spring C (610), the inner end surface of the cylindrical member (600) and the cavity wall of the die-casting cavity are in the same plane, and an arc block (620) is symmetrically fixedly mounted on the outer end of the cylindrical member (600); In addition, a piston tube B (800) is provided at one side of the mold B (200), wherein a piston rod B is movably connected inside the piston tube B (800), and the piston rod B extends through the piston tube B (800) to the outside and is fixedly connected to a cross frame (810), wherein an arcuate surface (811) is provided at the lower end of the cross frame (810), and the arcuate surface (811) is slidably fitted with the arc block (620), and the piston tube B (800) is also kept in communication with the hose (120).

2. The high-strength die-cast aluminum alloy forming demoulding processing device according to claim 1, characterized in that: An inclined surface (102) is provided on the cavity A (101) at a position close to the die-casting cavity. The moving part (300) and the cavity A (101) are slidably matched. The outer wall of the moving part (300) is elastically connected to the inner wall of the cavity A (101) via a spring A (310). The cavity A (101) is connected to the hose (120) via a connecting groove (103) provided on the mold A (100). The hose (120) is connected to the piston tube A (410). The movable groove (301) is connected to the cavity A (101) through the circular hole, the outer wall of the movable plate (320) is slidably matched with the inner wall of the movable groove (301), and the movable plate (320) separates the cavity A (101) from the movable groove (301); The outer wall of the movable plate (320) is in the same plane as the wall of the die-casting cavity on the mold A (100). When the gas flows from the piston tube A (410) through the hose (120) into the cavity A (101), the movable part (300) moves toward the side away from the die-casting cavity, and the corresponding movable plate (320) squeezes the casting, and the gas is blown toward the die-casting cavity along the inclined surface (102).

3. The high-strength die-cast aluminum alloy forming demoulding processing device according to claim 2, characterized in that: The piston tube A (410) is fixedly connected to the outer wall of the frame (400), and a piston rod A is movably connected inside the piston tube A (410), the piston rod A is fixedly connected to the outer wall of the lap block (210), and the lap plate (500) is elastically connected to the outer wall of the frame (400) via a spring B (520); A slope A (211) is provided on the side wall of the lap block (210), and a slope B (501) is provided on the lap plate (500). The slope A (211) and the slope B (501) are slidably matched. When the mold A (100) and the mold B (200) are close to each other, relative sliding occurs between the corresponding lap block (210) and the lap plate (500), and the lap plate (500) drives the nozzle tube (510) to be withdrawn from the die-casting cavity.

4. The high-strength die-cast aluminum alloy forming demoulding processing device according to claim 3, characterized in that: The invention also includes a resistance tube (700) movably connected to the cylindrical member (600), wherein a through groove is provided inside the resistance tube (700), and a plurality of air outlet holes (701) are provided at the end of the through groove in an annular structure. The resistance tube (700) passes through the cylindrical member (600) and extends to the outside where a connecting tube (710) is fixedly installed. The connecting tube (710) is connected to the air extraction end of the external air pump. It also includes a circular ring fixedly mounted on the outer wall of the resistance tube (700), the circular ring slidingly cooperates with the sliding groove (601) provided in the cylindrical member (600), and the circular ring is elastically connected to the inner wall of the sliding groove (601) via a spring D (720).

5. The high-strength die-cast aluminum alloy forming demoulding processing device according to claim 4, characterized in that: It also includes a contact switch (221) provided on the outer wall of the sleeve (220), the contact switch (221) being used to control the power-on state of the spring D (720); When the outer wall of the cylindrical member (600) contacts the contact switch (221), the spring D (720) is energized; when the spring D (720) is in the energized state, it contracts and causes the contact tube (700) to extend out from the cylindrical member (600) to assist in demoulding.

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