Integrated die-casting die for front side plate of new energy automobile

Abstract

The invention relates to the technical field of die-casting dies, in particular to an integrated die-casting die for a front side plate of a new energy automobile, which comprises an upper die with an upper die cavity and a lower die with a lower die cavity, the upper die cavity and the lower die cavity are closed to form a complete die cavity, and a gas circulation dust removal mechanism is arranged between the upper die and the lower die. The gas circulation dedusting mechanism comprises an exhaust unit, a dedusting unit for dedusting gas, a return gas mixing unit for providing power for gas flow and a backflow unit, the exhaust unit comprises an exhaust pipe, the dedusting assembly comprises a dedusting assembly, the return gas mixing unit comprises a gas flow driving unit, and the backflow unit comprises a gas return pipe. The complete die cavity, the exhaust pipe, the dust removal assembly, the airflow driving unit and the air return pipe are sequentially connected to form a gas circulation path. And by arranging the exhaust unit, the dust removal unit, the return gas mixing unit and the backflow unit, impurities contained in water after hydrogen combustion are reduced, and therefore the die-casting forming quality of the automobile parts is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of die-casting molds, and specifically relates to an integrated die-casting mold for the front side plate of a new energy vehicle. Background Art

[0002] With the rapid development of the new energy vehicle industry, the requirements for the lightweight, high strength, and manufacturing precision of automotive parts are increasing day by day. As an important part of the body structure of a new energy vehicle, the quality and performance of the front side plate directly affect the safety, comfort, and endurance of the whole vehicle. The integrated die-casting technology has attracted much attention because it can significantly reduce the number of parts, simplify the production process, improve production efficiency, and quality consistency. Through the integrated die-casting technology, parts with complex structures such as the front side plate can be formed in one go, significantly reducing the body weight and at the same time enhancing the strength and rigidity of the overall structure.

[0003] The patent with the Chinese patent publication number CN118808593B discloses an integrated die-casting mold for a new energy vehicle with the function of preventing the die-cast product from deforming. Before die-casting, the gas supply unit supplies hydrogen into the mold cavity, and the hydrogen concentration supplied into the mold cavity each time is controlled at 4%. Since the volume of the mold cavity remains constant, when injecting hydrogen into the mold cavity through the gas supply unit, the supply amount of the gas supply unit can also be preset, so as to ensure that the hydrogen concentration in the mold cavity is 4%. If the hydrogen concentration is lower than 4%, the hydrogen cannot burn, and in actual operation, it is impossible to ensure that the hydrogen concentration is exactly 4%. Therefore, the amount of hydrogen charged into the mold cavity needs to be appropriately relaxed, so that the hydrogen concentration is between 4% and 10%. Although hydrogen will explode and burn in this interval, the impact is small and will not cause great damage to the mold cavity. And because the gas supply unit injects hydrogen into the mold cavity, water vapor can be generated after the hydrogen burns. Since the upper mold and the lower mold are at a high temperature, the water vapor generated by the hydrogen combustion can be quickly evaporated. After injecting hydrogen and causing explosion and combustion multiple times, the oxygen in the mold cavity is consumed, thereby reducing the oxygen content in the mold cavity, making the die-cast product not easily deformed.

[0004] Although the above solution consumes the oxygen in the mold cavity by combustion, after the upper mold and the lower mold are closed, the air in the mold cavity contains impurities. The water generated during the hydrogen combustion will combine with the impurities in the air and fall onto the inner wall of the lower mold. When the water meets the high-temperature inner wall, it will evaporate, causing the impurities contained in the water to adhere to the inner wall of the lower mold, which may cause impurity marks on the die-cast parts and affect the quality of the parts. Summary of the Invention

[0005] To solve the above problems, an integrated die-casting mold for the front side plate of a new energy vehicle is provided. Through the cooperation of an exhaust unit, a dust removal unit, a gas return mixing unit, and a reflux unit, the impurities contained in the water after hydrogen combustion are reduced, and the impurities left on the inner wall of the lower mold cavity after water vapor evaporation are avoided, thus significantly improving the quality of die-casting forming of automotive parts.

[0006] To solve the problems of the existing technology, the present invention provides an integrated die-casting mold for the front side plate of a new energy vehicle, which includes an upper mold with an upper mold cavity and a lower mold with a lower mold cavity. After the upper mold cavity and the lower mold cavity are closed, a complete mold cavity is formed. An exhaust cavity communicating with the upper mold cavity is opened on the upper mold, and a gas return cavity communicating with the lower mold cavity is opened on the lower mold. The exhaust cavity and the gas return cavity are respectively located at both ends of the complete mold cavity. A gas circulation dust removal mechanism is arranged between the upper mold and the lower mold. The gas circulation dust removal mechanism includes an exhaust unit arranged in the exhaust cavity, a dust removal unit for dust removal of the gas, a gas return mixing unit for providing power for the gas flow, and a reflux unit arranged in the gas return cavity. The exhaust unit includes an exhaust pipe, the dust removal unit includes a dust removal component, the gas return mixing unit includes an air flow driving unit, and the reflux unit includes a gas return pipe. The complete mold cavity, the exhaust pipe, the dust removal component, the air flow driving unit, and the gas return pipe are sequentially connected to form a gas circulation path.

[0007] Preferably, the gas return mixing unit further includes a mixing pipe. One end of the mixing pipe is connected to the air flow driving unit. After the upper mold cavity and the lower mold cavity are closed, the other end of the mixing pipe is connected to the reflux unit. A three-way joint is arranged in the middle of the mixing pipe, and the three-way joint is connected to an external gas supply unit.

[0008] Preferably, the dust removal unit further includes a first partition component arranged between the exhaust pipe and the dust removal component, and the first partition component is used to block the gas from flowing from the exhaust pipe to the dust removal component.

[0009] Preferably, the dust removal unit further includes a first control component for controlling the state of the first partition component; when gas flow is required, the first control component controls the first partition component to connect the exhaust pipe and the dust removal component; when gas flow needs to be blocked, the first control component controls the first partition component to block the exhaust pipe and the dust removal component.

[0010] Preferably, the gas return mixing unit further includes a second partition component. The second partition component is arranged on the lower mold and is fixedly connected to the gas return pipe. After the upper mold cavity and the lower mold cavity are closed, the mixing pipe is connected to the second partition component, and the second partition component is used to block the gas from flowing back from the gas return pipe into the mixing pipe.

[0011] Preferably, the gas return mixing unit further includes a second control component for controlling the state of the second partition component; when gas flow is required, the second control component controls the second partition component to connect the gas return pipe and the mixing pipe; when gas flow needs to be blocked, the second control component controls the second partition component to block the gas return pipe and the mixing pipe.

[0012] Preferably, the exhaust unit further includes a first closing plate, a first convex portion is provided in the middle of the first closing plate, during die casting, the surface of the first convex portion and the remaining surfaces of the upper mold cavity form a complete inner wall of the upper mold cavity, and exhaust ports are provided at both ends of the first closing plate, and the exhaust ports are connected to the exhaust pipe.

[0013] Preferably, the exhaust unit further includes a first sealing baffle and a first closing structure; the first sealing baffle is arranged in the upper mold cavity and fits with the inner wall of the upper mold cavity; the first closing structure is arranged in the upper mold cavity, and the first closing structure is used to control the movement of the first closing plate in the upper mold cavity.

[0014] Preferably, the reflux unit further includes a second closing plate, a second convex portion is provided in the middle of the second closing plate, during die casting, the surface of the second convex portion and the remaining surfaces of the lower mold cavity form a complete inner wall of the lower mold cavity, and gas return ports are provided at both ends of the second closing plate, and the gas return ports are connected to the gas return pipe.

[0015] Preferably, the reflux unit further includes a second sealing baffle and a second closing structure; the second sealing baffle is arranged in the lower mold cavity and fits with the inner wall of the lower mold cavity; the second closing structure is arranged in the lower mold cavity, and the second closing structure is used to control the movement of the second closing plate in the lower mold cavity.

[0016] The beneficial effects of the present invention compared with the prior art are: 1. The present invention is provided with an upper mold, a lower mold and a gas circulation dust removal mechanism. After the upper mold and the lower mold are closed, a complete closed mold cavity is formed, providing a necessary closed environment for gas circulation. The exhaust cavity and the return air cavity are respectively located at both ends of the mold cavity, ensuring that the air in the mold cavity can form an effective lateral flow path. The complete mold cavity, the exhaust pipe, the dust removal component, the air flow driving unit and the return air pipe are connected in sequence to form a gas circulation path, providing a basis for dust removal. The exhaust unit introduces the air in the mold cavity into the dust removal component through the exhaust pipe. The dust removal component can filter the impurities in the air to ensure that clean air enters the subsequent link. The air flow driving unit generates suction and thrust, respectively guiding the gas into the dust removal component and pushing the clean air back into the mold cavity, realizing the cyclic flow and continuous purification of the gas. After the hydrogen burns, the gas circulation dust removal mechanism is started again to perform secondary filtration on the air in the mold cavity, effectively absorbing water vapor and reducing the water content in the air. Through the exhaust unit, the dust removal unit, the return air mixing unit and the return flow unit, the impurities contained in the water after hydrogen combustion are reduced, and the phenomenon that impurities are left on the inner wall of the lower mold cavity after water vapor evaporation is avoided, thereby significantly improving the quality of die-casting forming of automotive parts.

[0017] 2. The present invention is provided with a mixing pipe. The mixing pipe enables the clean air to be fully mixed with the hydrogen released from the three-way joint during the flowing process. Since the air generates a natural suction force on the hydrogen in the mixing pipe, it ensures that the hydrogen can be evenly and efficiently dispersed into the air, promoting the efficient consumption of oxygen during the subsequent ignition process, reducing the residue of unreacted oxygen, and improving the stability of the environment in the die-casting cavity. Through the cyclic flow of air, the hydrogen is evenly mixed into the air in the closed cavity, so that after the air filtration is completed, the oxygen can be consumed in time, improving the die-casting production efficiency.

[0018] 3. The present invention is provided with a first partition component. When the gas circulation dust removal process is started, the first partition component is adjusted to the open state, allowing the air containing impurities to enter the dust removal component through the exhaust pipe for purification treatment. Before the hydrogen is about to be ignited to consume oxygen, the first partition component is adjusted to the closed state, effectively blocking the spread of the flame or high-temperature gas that may be generated by hydrogen combustion in the direction of the dust removal component, thereby protecting the dust removal component and avoiding damage to the dust removal component caused by hydrogen combustion. Description of the Drawings

[0019] Figure 1 is a perspective view of an integrated die-casting mold for the front side plate of a new energy vehicle according to the present invention.

[0020] Figure 2 is a left view of an integrated die-casting mold for the front side plate of a new energy vehicle according to the present invention.

[0021] Figure 3 is Figure 2 a plane cross-sectional view at A-A in

[0022] Figure 4 is Figure 2 The perspective sectional view at A-A in it.

[0023] Figure 5 It is a perspective view of the exhaust unit, dust removal unit, gas return mixing unit and return flow unit in an integrated die-casting mold for the front side plate of a new energy vehicle of the present invention.

[0024] Figure 6 It is a perspective sectional view of the first partition assembly and the first control assembly in an integrated die-casting mold for the front side plate of a new energy vehicle of the present invention.

[0025] Figure 7 It is a perspective view of the first sealing plate, the first downward pressing drive assembly and the first reset assembly in an integrated die-casting mold for the front side plate of a new energy vehicle of the present invention.

[0026] Figure 8 It is an exploded view of the second partition assembly and the second control assembly in an integrated die-casting mold for the front side plate of a new energy vehicle of the present invention.

[0027] Figure 9 It is a perspective Figure One .

[0028] Figure 10 It is a perspective Figure Two .

[0029] Figure 11 It is a perspective Figure One .

[0030] Figure 12 It is a perspective Figure Two .

[0031] The reference numerals in the figure are: 1, upper die; 2, lower die; 3, exhaust unit; 31, exhaust pipe; 32, first closing plate; 321, first convex portion; 33, first sealing baffle; 34, first closing structure; 341, first lifting drive structure; 3411, first linear drive; 3412, first drive plate; 342, first guiding structure; 3421, first guide post; 3422, first guide sleeve; 4, dust removal unit; 41, dust removal assembly; 411, dust removal box; 412, dust removal filter element; 42, first partition assembly; 421, first partition box; 422, first sealing plate; 423, first sealing block; 43, first control assembly; 431, first pressing drive assembly; 4311, first rotating shaft; 4312, first cam; 432, first reset assembly; 4321, second guide post; 4322, first connecting plate; 4323, first spring; 5, return air mixing unit; 51, air flow drive unit; 52, mixing pipe; 521, tee joint; 53, second partition assembly; 531, second partition box; 532, second sealing plate; 533, second sealing block; 54, second control assembly; 541, second pressing drive assembly; 5411, second rotating shaft; 5412, second cam; 542, second reset assembly; 5421, third guide post; 5422, second connecting plate; 5423, second spring; 6, return flow unit; 61, return air pipe; 62, second closing plate; 621, second convex portion; 63, second sealing baffle; 64, second closing structure; 641, second lifting drive structure; 6411, second linear drive; 6412, second drive plate; 642, second guiding structure; 6421, fourth guide post; 6422, second guide sleeve; 7, gas supply unit; 8, ignition unit. Detailed implementation manners

[0032] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0033] Refer to Figures 1 to 12Shown: An integrated die-casting mold for the front side panel of a new energy vehicle, including an upper mold 1 with an upper mold cavity and a lower mold 2 with a lower mold cavity. After the upper mold cavity and the lower mold cavity are closed, a complete mold cavity is formed. An exhaust cavity communicating with the upper mold cavity is opened on the upper mold 1, and a return air cavity communicating with the lower mold cavity is opened on the lower mold 2. The exhaust cavity and the return air cavity are respectively located at both ends of the complete mold cavity. A gas circulation dust removal mechanism is arranged between the upper mold 1 and the lower mold 2. The gas circulation dust removal mechanism includes an exhaust unit 3 arranged in the exhaust cavity, a dust removal unit 4 for dust removal of the gas, a return air mixing unit 5 for providing power for the gas flow, and a return flow unit 6 arranged in the return air cavity. The exhaust unit 3 includes an exhaust pipe 31, the dust removal unit 4 includes a dust removal assembly 41, the return air mixing unit 5 includes an air flow driving unit 51, and the return flow unit 6 includes a return air pipe 61. The complete mold cavity, the exhaust pipe 31, the dust removal assembly 41, the air flow driving unit 51, and the return air pipe 61 are sequentially connected to form a circulation path of the gas.

[0034] Specifically, a gas supply unit 7 and an ignition unit 8 are externally connected to the upper mold 1. The gas supply unit 7 and the ignition unit 8 adopt existing technologies. Further, the dust removal assembly 41 includes a dust removal box 411 and a detachable dust removal filter element 412 arranged inside the dust removal box 411. The dust removal box 411 is connected to the exhaust pipe 31, and the upper end of the dust removal box 411 is connected to the air flow driving unit 51. The gas flowing out of the complete mold cavity first passes through the dust removal assembly 41 and then through the air flow driving unit 51.

[0035] After the mold is closed, the mold cavity forms a closed space. At this time, the exhaust cavity and the return air cavity are opened, and the return air mixing unit 5 starts to operate. The air flow driving unit 51 generates suction, guiding the air in the mold cavity to enter the dust removal box 411 along the exhaust pipe 31. After being filtered by the dust removal filter element 412 and removing impurities, the clean air is then pushed by the air flow driving unit 51 and returns to the mold cavity through the return air pipe 61. Since the exhaust cavity and the return air cavity are respectively located at both ends of the mold cavity, it ensures that the air in the mold cavity can flow horizontally, enabling the air in the mold cavity to contact the dust removal assembly 41. Through the continuous action of the return air mixing unit 5, the air is repeatedly purified, improving the dust removal effect. After the dust removal process is completed, the gas supply unit 7 quantitatively injects hydrogen into the closed mold cavity. Subsequently, the ignition unit 8 ignites the hydrogen. The water generated by the combustion of hydrogen adheres to the inner wall of the lower mold cavity, and the water is heated and evaporated into water vapor. At this time, the return air mixing unit 5 is started again to filter the air in the mold cavity for the second time and absorb the water vapor, effectively reducing the water content in the air. Through the exhaust unit 3, the dust removal unit 4, the return air mixing unit 5, and the return flow unit 6, the impurities contained in the water after the hydrogen combustion are reduced, avoiding the impurities left on the inner wall of the lower mold cavity after the water vapor evaporates, thereby significantly improving the quality of die-casting forming of automotive parts.

[0036] Refer to Figure 3 、 Figure 4 and Figure 5As shown: The gas return mixing unit 5 further includes a mixing pipe 52. One end of the mixing pipe 52 is connected to the air flow driving unit 51. After the upper mold cavity and the lower mold cavity are clamped, the other end of the mixing pipe 52 is connected to the return flow unit 6. A three-way joint 521 is provided in the middle of the mixing pipe 52, and the three-way joint 521 is connected to an externally connected gas supply unit 7.

[0037] After the externally connected gas supply unit 7 supplies hydrogen into the closed cavity, it is necessary to wait for the hydrogen to evenly diffuse into the closed cavity, and then ignite to consume oxygen. Otherwise, some oxygen will not react with hydrogen. Therefore, a mixing pipe 52 is provided between the air flow driving unit 51 and the return air pipe 61. The three-way joint 521 on the mixing pipe 52 is connected to the gas supply unit 7. When clean air flows in the mixing pipe 52, the gas supply unit 7 gradually releases hydrogen towards the three-way joint 521, and the air flowing in the mixing pipe 52 generates a suction force on the hydrogen, sucking the hydrogen into the air and flowing together with the air. Through the circulating flow of the air, the hydrogen is evenly mixed into the air in the closed cavity, so that after the air filtration is completed, the oxygen can be consumed in time, improving the die-casting production efficiency.

[0038] Refer to Figure 4 and Figure 6 As shown: The dust removal unit 4 further includes a first partition component 42 provided between the exhaust pipe 31 and the dust removal component 41. The first partition component 42 is used to block the gas from flowing from the exhaust pipe 31 to the dust removal component 41.

[0039] Specifically, the first partition component 42 includes a first partition box 421, a first sealing plate 422 and a first sealing block 423. The first partition box 421 is provided at the lower end of the dust removal box 411. The lower end of the first partition box 421 is connected to the exhaust pipe 31. The first sealing plate 422 is provided inside the first partition box 421. The first sealing block 423 is provided on one side of the first sealing plate 422 facing the lower end of the first partition box 421. The first sealing block 423 is in an inverted conical shape, and the maximum diameter of the first sealing block 423 is larger than the diameter of the exhaust pipe 31.

[0040] Since hydrogen is introduced into the air during the dust removal stage, the air at the exhaust end also contains hydrogen. When the hydrogen is ignited, the combustion may extend through the exhaust pipe 31 to the dust removal component 41, causing damage to the dust filter element 412 in the dust removal component 41. Therefore, a first partition component 42 is provided. When the gas circulation dust removal process is started, the first sealing plate 422 drives the first sealing block 423 away from the exhaust pipe 31, allowing air containing impurities to enter the dust removal component 41 through the exhaust pipe 31 for purification. Before the hydrogen is ignited to consume oxygen, the first sealing plate 422 moves in the opposite direction, driving the first sealing block 423 to be tightly inserted into the exhaust pipe 31. By utilizing the inverted cone structural feature, one end of the exhaust pipe 31 is sealed, and a tight and effective physical partition can be formed, which effectively blocks the flame or high-temperature gas that may be generated by the combustion of hydrogen from spreading toward the dust removal component 41, thereby protecting the key components in the dust removal component 41 and preventing the combustion of hydrogen from damaging the dust removal component 41.

[0041] Reference Figure 3 , Figure 6 and Figure 7 As shown: the dust removal unit 4 also includes a first control component 43 configured to control the state of the first partition component 42; when gas flow is required, the first control component 43 controls the first partition component 42 to connect the exhaust pipe 31 and the dust removal component 41; when the gas flow needs to be blocked, the first control component 43 controls the first partition component 42 to isolate the exhaust pipe 31 and the dust removal component 41.

[0042] Specifically, the first control component 43 includes a first pressing drive component 431 and four first reset components 432. The first pressing drive component 431 includes a first rotating shaft 4311 and a first cam 4312. The first rotating shaft 4311 is arranged along the length direction of the first sealing plate 422, and both ends of the first rotating shaft 4311 are connected to the first partition box 421. The first cam 4312 is arranged on the first rotating shaft 4311. The four first reset components 432 are grouped into two. The two groups of first reset components 432 are respectively arranged at both ends of the first sealing plate 422, and the two first reset components in one group are arranged in a group. The reset assembly 432 is respectively located on both sides of the first rotating shaft 4311, and the first reset assembly 432 includes a second guide column 4321, a first connecting plate 4322 and a first spring 4323. The second guide column 4321 is arranged at the bottom of the first partition box 421, one end of the first connecting plate 4322 is connected to the first sealing plate 422, and the other end of the first connecting plate 4322 is slidably connected to the second guide column 4321, and the first spring 4323 is sleeved on the second guide column 4321, and the two ends of the first spring 4323 are respectively abutted against the end of the second guide column 4321 and the first connecting plate 4322.

[0043] When the first rotating shaft 4311 rotates such that the base circle end of the first cam 4312 faces the first sealing plate 422, the first springs 4323 in the four first reset components 432 act simultaneously, applying a uniform and equal force towards the first rotating shaft 4311 to the first connecting plate 4322. The action of this balanced force keeps the first connecting plate 4322 in a horizontal state, thereby driving the first sealing block 423 to separate from the exhaust pipe 31, achieving the connection of the gas passage. On the contrary, when the first rotating shaft 4311 continues to rotate such that the convex end of the first cam 4312 contacts the first sealing plate 422, the pressure exerted by the first cam 4312 on the first sealing plate 422 gradually increases until it exceeds the resultant force of the four first springs 4323. At this time, under the action of the first cam 4312, the first sealing plate 422 moves towards the exhaust pipe 31 along the second guide post 4321, tightly inserting the first sealing block 423 into the exhaust pipe 31, effectively blocking the gas passage, thereby realizing the switching of the state of the first partition component 42 and ensuring the on-demand control of gas flow.

[0044] Refer to Figure 3 and Figure 8 As shown: The gas return mixing unit 5 further includes a second partition component 53. The second partition component 53 is arranged on the lower mold 2 and is fixedly connected to the gas return pipe 61. After the upper mold cavity and the lower mold cavity are closed, the mixing pipe 52 is connected to the second partition component 53. The second partition component 53 is used to block the gas from flowing back from the gas return pipe 61 into the mixing pipe 52.

[0045] Specifically, the second partition component 53 includes a second partition box 531, a second sealing plate 532, and a second sealing block 533. The lower end of the second partition box 531 is connected to the gas return pipe 61. The second sealing plate 532 is arranged inside the second partition box 531. The second sealing block 533 is arranged on one side of the second sealing plate 532 facing the lower end of the second partition box 531. The second sealing block 533 is in an inverted conical shape, and the maximum diameter of the second sealing block 533 is larger than the diameter of the gas return pipe 61.

[0046] When hydrogen burns, it will flow back into the mixing tube 52 along the return pipe 61, and the mixing tube 52 is connected to the gas supply unit 7. If the combustion spreads to the mixing tube 52, it may pose a threat to the gas supply unit 7. Therefore, a second partition assembly 53 is provided. When the gas circulation dust removal process is started, the second sealing plate 532 drives the second sealing block 533 away from the return pipe 61, allowing the purified air to flow back into the closed mold cavity through the return pipe 61. Before the hydrogen is ignited to consume oxygen, the second sealing plate 532 moves in the opposite direction, driving the second sealing block 533 to be tightly inserted into the return pipe 61. The inverted cone structural feature is used to achieve the blockage of one end of the return pipe 61, which can form a tight and effective physical partition, effectively blocking the flame or high-temperature gas that may be generated by the combustion of hydrogen from spreading into the mixing tube 52, thereby preventing the flame or high-temperature gas from being transmitted to the gas supply unit 7 and reducing the danger.

[0047] Reference Figure 3 and Figure 8 As shown: the return air mixing unit 5 also includes a second control component 54 for controlling the state of the second partition component 53; when gas flow is required, the second control component 54 controls the second partition component 53 to connect the return air pipe 61 and the mixing pipe 52; when the gas flow needs to be blocked, the second control component 54 controls the second partition component 53 to isolate the return air pipe 61 and the mixing pipe 52.

[0048] Specifically, the second control assembly 54 includes a second downward pressing drive assembly 541 and four second reset assemblies 542. The second downward pressing drive assembly 541 includes a second rotating shaft 5411 and a second cam 5412. The second rotating shaft 5411 is arranged along the length direction of the second sealing plate 532, and both ends of the second rotating shaft 5411 are connected to the second partition box 531. The second cam 5412 is arranged on the second rotating shaft 5411. The four second reset assemblies 542 are grouped into two. The two groups of second reset assemblies 542 are respectively arranged at both ends of the second sealing plate 532, and the two second reset assemblies in one group are arranged in a group. The reset assembly 542 is respectively located on both sides of the second rotating shaft 5411, and the second reset assembly 542 includes a third guide column 5421, a second connecting plate 5422 and a second spring 5423. The third guide column 5421 is arranged at the bottom of the second partition box 531, one end of the second connecting plate 5422 is connected to the second sealing plate 532, and the other end of the second connecting plate 5422 is slidably connected to the third guide column 5421, and the second spring 5423 is sleeved on the third guide column 5421, and the two ends of the second spring 5423 are respectively abutted against the end of the third guide column 5421 and the second connecting plate 5422.

[0049] When the second rotating shaft 5411 rotates such that the base circle end of the second cam 5412 faces the second sealing plate 532, the second springs 5423 in the four second reset components 542 act simultaneously, exerting a uniform and equal force on the second connecting plate 5422 towards the second rotating shaft 5411. The action of this balanced force keeps the second connecting plate 5422 in a horizontal state, thereby driving the second sealing block 533 to separate from the return air pipe 61, achieving the connection of the gas passage. On the contrary, when the second rotating shaft 5411 continues to rotate such that the convex end of the second cam 5412 contacts the second sealing plate 532, the pressure exerted by the second cam 5412 on the second sealing plate 532 gradually increases until it exceeds the resultant force of the four second springs 5423. At this time, under the action of the second cam 5412, the second sealing plate 532 moves towards the return air pipe 61 along the third guide post 5421, tightly inserting the second sealing block 533 into the return air pipe 61, effectively blocking the gas passage, thus realizing the switching of the state of the second partition component 53 and ensuring the on-demand control of gas flow.

[0050] Refer to Figure 3 and Figure 9 As shown: The exhaust unit 3 further includes a first closing plate 32. A first protrusion 321 is provided in the middle of the first closing plate 32. During die casting, the surface of the first protrusion 321 and the remaining surfaces of the upper die cavity form a complete inner wall of the upper die cavity. Exhaust ports are provided at both ends of the first closing plate 32, and the exhaust ports are connected to the exhaust pipe 31.

[0051] During the air dust removal stage, the first protrusion 321 on the first closing plate 32 separates from the upper die cavity, forming an exhaust passage, enabling the air in the closed cavity to flow through the exhaust passage to the exhaust port and then be guided into the exhaust pipe 31, achieving effective air dust removal. During die casting, the first protrusion 321 on the first closing plate 32 combines with the upper die cavity to jointly form the shape required for die casting. This not only ensures the dimensional accuracy and surface quality of the die-cast part but also effectively prevents the leakage of molten metal, improving the stability and controllability of the die-casting process, thus realizing the flexible switching of the first closing plate 32 between air dust removal and die-casting operations.

[0052] Refer to Figure 9 and Figure 10 As shown: The exhaust unit 3 further includes a first sealing baffle 33 and a first closing structure 34; the first sealing baffle 33 is arranged in the upper die cavity and fits with the inner wall of the upper die cavity; the first closing structure 34 is arranged in the upper die cavity, and the first closing structure 34 is used to control the movement of the first closing plate 32 in the upper die cavity.

[0053] Specifically, the first closing structure 34 includes two first lifting drive structures 341 and two first guiding structures 342. The two first lifting drive structures 341 are respectively arranged at both ends of the first closing plate 32. The first lifting drive structure 341 includes two first linear drivers 3411 symmetrically arranged with respect to the first closing plate 32. The output end of the first linear driver 3411 is provided with a first drive plate 3412. The two ends of the first drive plate 3412 are respectively hinged to the first linear driver 3411 and the first closing plate 32. The two first guiding structures 342 are respectively arranged at both ends of the first closing plate 32. The first guiding structure 342 includes a first guide post 3421 and a first guide sleeve 3422. The first guide post 3421 is connected to the first closing plate 32, and the first guide sleeve 3422 is connected to the first sealing baffle 33, and the first guide post 3421 is movably connected to the first guide sleeve 3422.

[0054] During the air dust removal stage, the two first lifting drive structures 341 are started simultaneously. The two first linear drivers 3411 respectively apply forces to the two first drive plates 3412, so that the two ends of the two first drive plates 3412 connected to the two first linear drivers 3411 move away from each other, and the included angle between the two first drive plates 3412 increases accordingly. The movement of the first drive plate 3412 is transmitted to the first closing plate 32 through the hinge structure, so that the first closing plate 32 is subjected to a tensile force until it is in close contact with the first sealing baffle 33, realizing the opening of the exhaust passage. And the first guide post 3421 moves along the first guide sleeve 3422, so that the first closing plate 32 maintains translation. During the die-casting operation, the two first lifting drive structures 341 are started simultaneously again, but at this time the two first linear drivers 3411 drive the two first drive plates 3412 to move in the reverse direction, so that the two first drive plates 3412 simultaneously apply a thrust to the first closing plate 32. As the thrust increases, the first closing plate 32 gradually combines with the upper die 1 to jointly form a complete die-casting cavity. Through the coordinated action of the first lifting drive structure 341 and the first guiding structure 342, the precise control of the movement trajectory of the first closing plate 32 is realized, ensuring the smooth progress of the die-casting operation and the air dust removal stage.

[0055] Refer to Figure 4 and Figure 11 As shown: The reflux unit 6 further includes a second closing plate 62. A second convex portion 621 is provided in the middle of the second closing plate 62. During die-casting, the surface of the second convex portion 621 and the rest of the surface of the lower die cavity form a complete inner wall of the lower die cavity. Air return ports are opened at both ends of the second closing plate 62, and the air return ports are connected to the air return pipe 61.

[0056] During the air dust removal stage, the second protrusion 621 on the second closing plate 62 is separated from the lower die cavity, forming a return air channel. This allows the air in the return air pipe 61 to enter the return air channel through the exhaust port and finally enter the sealed cavity. During die casting, the second protrusion 621 on the second closing plate 62 combines with the lower die cavity to jointly shape the required die-cast shape. This not only ensures the dimensional accuracy and surface quality of the die-cast part but also effectively prevents the leakage of molten metal, improving the stability and controllability of the die-casting process. Thus, the second closing plate 62 can be flexibly switched between air return and die-casting operations.

[0057] Refer to Figure 11 and Figure 12 As shown: The return air unit 6 further includes a second sealing baffle 63 and a second closing structure 64; the second sealing baffle 532 is arranged in the lower die cavity and fits against the inner wall of the lower die cavity; the second closing structure 64 is arranged in the lower die cavity, and the second closing structure 64 is used to control the movement of the second closing plate 62 in the lower die cavity.

[0058] Specifically, the second closing structure 64 includes two second lifting drive structures 641 and two second guiding structures 642. The two second lifting drive structures 641 are respectively arranged at both ends of the second closing plate 62. The second lifting drive structure 641 includes two second linear drivers 6411 symmetrically arranged with respect to the second closing plate 62. The output end of the second linear driver 6411 is provided with a second drive plate 6412. Both ends of the second drive plate 6412 are respectively hinged to the second linear driver 6411 and the second closing plate 62. The two second guiding structures 642 are respectively arranged at both ends of the second closing plate 62. The second guiding structure 642 includes a fourth guide post 6421 and a second guide sleeve 6422. The fourth guide post 6421 is connected to the second closing plate 62, the second guide sleeve 6422 is connected to the first sealing baffle 33, and the fourth guide post 6421 is movably connected to the second guide sleeve 6422.

[0059] During the air dust removal stage, two second lifting drive structures 641 are started simultaneously. Two second linear drivers 6411 apply forces to two second drive plates 6412 respectively, causing the two ends of the two second drive plates 6412 connected to the two second linear drivers 6411 to move away from each other. The angle between the two second drive plates 6412 increases accordingly. The movement of the second drive plate 6412 is transmitted to the second closing plate 62 through the hinge structure, causing the second closing plate 62 to be subjected to a tensile force until it tightly abuts against the second sealing baffle 63, realizing the opening of the air return channel. And the fourth guide post 6421 moves along the second guide sleeve 6422, keeping the second closing plate 62 in translation. During the die casting operation, the two second lifting drive structures 641 are started simultaneously again. However, at this time, the two second linear drivers 6411 drive the two second drive plates 6412 to move in the reverse direction, causing the two second drive plates 6412 to apply a thrust to the second closing plate 62 simultaneously. As the thrust increases, the second closing plate 62 gradually combines with the lower die 2 to jointly form a complete die casting cavity. Through the coordinated action of the second lifting drive structure 641 and the second guiding structure 642, the precise control of the movement trajectory of the second closing plate 62 is realized, ensuring the smooth progress of the die casting operation and the air dust removal stage.

[0060] The above embodiments only represent one or several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An integrated die-casting mold for a front side panel of a new energy vehicle, comprising an upper mold (1) having an upper mold cavity and a lower mold (2) having a lower mold cavity, wherein the upper mold cavity and the lower mold cavity are combined to form a complete mold cavity, and the characteristics are as follows: An exhaust cavity connected to the upper mold cavity is formed on the upper mold (1), and an air return cavity connected to the lower mold cavity is formed on the lower mold (2), and the exhaust cavity and the air return cavity are respectively located at two ends of the complete mold cavity. A gas circulation dust removal mechanism is provided between the upper mold (1) and the lower mold (2), and the gas circulation dust removal mechanism comprises an exhaust unit (3) arranged in the exhaust cavity, a dust removal unit (4) for removing dust from the gas, a air return mixing unit (5) for providing power for the gas flow, and a return unit (6) arranged in the air return cavity. The exhaust unit (3) comprises an exhaust pipe (31), the dust removal unit (4) comprises a dust removal assembly (41), the air return mixing unit (5) comprises an air flow driving unit (51), and the return unit (6) comprises an air return pipe (61). The complete mold cavity, the exhaust pipe (31), the dust removal assembly (41), the air flow driving unit (51), and the air return pipe (61) are sequentially connected to form a gas circulation path.

2. The integrated die-casting mold for the front side panel of a new energy vehicle according to claim 1, characterized in that: The return air mixing unit (5) further comprises a mixing tube (52), one end of the mixing tube (52) being connected to the airflow driving unit (51), and the other end of the mixing tube (52) being connected to the return flow unit (6) after the upper mold cavity and the lower mold cavity are molded together, and a three-way joint (521) is provided in the middle of the mixing tube (52), and the three-way joint (521) is connected to an external gas supply unit (7).

3. The integrated die-casting mold for the front side panel of a new energy vehicle according to claim 1, characterized in that: The dust removal unit (4) further comprises a first partition assembly (42) arranged between the exhaust pipe (31) and the dust removal assembly (41), the first partition assembly (42) being used to block the flow of gas from the exhaust pipe (31) to the dust removal assembly (41).

4. The integrated die-casting mold for the front side panel of a new energy vehicle according to claim 3, characterized in that: The dust removal unit (4) further comprises a first control component (43) configured to control the state of the first partition component (42); when gas flow is required, the first control component (43) controls the first partition component (42) to connect the exhaust pipe (31) and the dust removal component (41); when gas flow needs to be prevented, the first control component (43) controls the first partition component (42) to partition the exhaust pipe (31) and the dust removal component (41).

5. The integrated die-casting mold for the front side panel of a new energy vehicle according to claim 2, characterized in that: The return air mixing unit (5) further comprises a second partition component (53), the second partition component (53) being arranged on the lower mould (2), and the second partition component (53) being fixedly connected to the return air pipe (61); after the upper mould cavity and the lower mould cavity are closed, the mixing pipe (52) is connected to the second partition component (53), and the second partition component (53) is used to prevent gas from flowing back from the return air pipe (61) into the mixing pipe (52).

6. The integrated die-casting mold for the front side panel of a new energy vehicle according to claim 5, characterized in that: The return air mixing unit (5) further comprises a second control component (54) for controlling the state of the second partition component (53); when gas flow is required, the second control component (54) controls the second partition component (53) to connect the return air pipe (61) and the mixing pipe (52); when gas flow needs to be blocked, the second control component (54) controls the second partition component (53) to isolate the return air pipe (61) and the mixing pipe (52).

7. The integrated die-casting mold for the front side panel of a new energy vehicle according to claim 1, characterized in that: The exhaust unit (3) further comprises a first closing plate (32), a first protrusion (321) being arranged in the middle of the first closing plate (32), and during die casting, the surface of the first protrusion (321) and the remaining surface of the upper die cavity form a complete inner wall of the upper die cavity, and exhaust ports are arranged at both ends of the first closing plate (32), and the exhaust ports are connected to the exhaust pipe (31).

8. The integrated die-casting mold for the front side panel of a new energy vehicle according to claim 7, characterized in that: The exhaust unit (3) further comprises a first sealing baffle (33) and a first closing structure (34); The first sealing baffle (33) is arranged in the upper mold cavity and is in contact with the inner wall of the upper mold cavity; The first closing structure (34) is arranged in the upper mold cavity, and the first closing structure (34) is used to control the movement of the first closing plate (32) in the upper mold cavity.

9. The integrated die-casting mold for the front side panel of a new energy vehicle according to claim 1, characterized in that: The reflux unit (6) further comprises a second closed plate (62), a second protrusion (621) being arranged in the middle of the second closed plate (62), and during die casting, the surface of the second protrusion (621) and the remaining surface of the lower die cavity form a complete inner wall of the lower die cavity, and air return ports are arranged at both ends of the second closed plate (62), and the air return ports are connected to the air return pipe (61).

10. The integrated die-casting mold for the front side panel of a new energy vehicle according to claim 9, characterized in that: The reflux unit (6) further comprises a second sealing baffle (63) and a second closing structure (64); The second sealing plate (532) baffle is arranged in the lower mold cavity and fits with the inner wall of the lower mold cavity; The second closing structure (64) is arranged in the lower mold cavity, and the second closing structure (64) is used to control the movement of the second closing plate (62) in the lower mold cavity.

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