An integrated die-casting mold for the front side panel of a new energy vehicle

Abstract

The present invention relates to the technical field of die-casting molds, and specifically to an integrated die-casting mold for the front side panel of a new energy vehicle, comprising an upper mold having an upper mold cavity and a lower mold having a lower mold cavity. The upper mold cavity and the lower mold cavity are combined to form a 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 comprises an exhaust unit, a dust removal unit for removing gas dust, a return gas mixing unit and a reflux unit for providing power for gas flow. The exhaust unit comprises an exhaust pipe, the dust removal assembly comprises a dust removal assembly, the return gas mixing unit comprises an airflow driving unit, and the reflux unit comprises a return gas pipe. The complete mold cavity, the exhaust pipe, the dust removal assembly, the airflow driving unit and the return gas pipe are connected in sequence to form a gas circulation path. By arranging the exhaust unit, the dust removal unit, the return gas mixing unit and the reflux unit, impurities contained in water after hydrogen combustion are reduced, thereby significantly improving the quality of die-casting of automobile parts.

Description

Technical Field

[0001] The present invention relates to the technical field of die-casting dies, and in particular to an integrated die-casting die for a front side panel of a new energy vehicle. Background Art

[0002] With the rapid development of the new energy vehicle industry, the demand for lightweight, high-strength, and precision-engineered automotive components is increasing. As a crucial component of the new energy vehicle body structure, the quality and performance of the front side panel directly impact the safety, comfort, and range of the vehicle. Integrated die-casting technology has attracted significant attention due to its ability to significantly reduce the number of parts, simplify the production process, and improve production efficiency and quality consistency. This technology allows complex components like the front side panel to be formed in one go, significantly reducing vehicle weight while improving overall structural strength and rigidity.

[0003] The Chinese patent announcement number CN118808593B discloses an integrated die-casting mold for new energy vehicles that can prevent deformation of die-cast finished products. Before die-casting, the gas supply unit supplies hydrogen into the mold cavity. The concentration of hydrogen supplied to the mold cavity is controlled at 4% each time. Since the volume of the mold cavity is constant, when the hydrogen is injected into the mold cavity through the gas supply unit, the supply amount of the gas supply unit can also be pre-set to ensure that the hydrogen concentration in the mold cavity is at 4%. If the hydrogen concentration is lower than 4%, the hydrogen cannot burn. In actual operation, it is impossible to ensure that the hydrogen concentration is completely It is in the state of 4%. In this case, the amount of hydrogen filled into the mold cavity needs to be appropriately relaxed so that the concentration of hydrogen is between 4% and 10%. Although hydrogen will explode in this range, the impact is small and will not cause major damage to the mold cavity. Moreover, since the gas supply unit fills the mold cavity with hydrogen, water vapor will be generated after the hydrogen burns. Since the temperature of the upper mold and the lower mold is relatively high, the water vapor generated by the hydrogen combustion can be quickly evaporated. By injecting hydrogen multiple times and after explosions, the oxygen in the mold cavity is consumed, thereby reducing the oxygen content in the mold cavity, making the finished product after die-casting less likely to deform.

[0004] Although the above solution consumes 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 produced by the combustion of hydrogen will combine with the impurities in the air and fall onto the inner wall of the lower mold. The water will evaporate when it encounters the high-temperature inner wall, causing the impurities contained in the water to adhere to the inner wall of the lower mold. This may cause traces of impurities to appear on the die-cast parts, affecting the quality of the parts. Summary of the Invention

[0005] To address the above issues, an integrated die-casting mold for the front side panels of new energy vehicles is provided. Through the cooperation of the exhaust unit, dust removal unit, return air mixing unit and reflux unit, the impurities contained in the water after hydrogen combustion are reduced, and impurities are avoided from being left on the inner wall of the lower mold cavity after water vapor evaporation, thereby significantly improving the quality of die-casting of automotive parts.

[0006] In order to solve the problems of the prior art, the present invention provides an integrated die-casting mold for the front side panel of a new energy vehicle, comprising an upper mold having an upper mold cavity and a lower mold having a lower mold cavity. The upper mold cavity and the lower mold cavity are combined to form a complete mold cavity. An exhaust cavity connected to the upper mold cavity is provided on the upper mold, and an air return cavity connected to the lower mold cavity is provided on the lower mold, 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 and the lower mold. The gas circulation dust removal mechanism comprises an exhaust unit arranged in the exhaust cavity, a dust removal unit for removing gas dust, a air return mixing unit for providing power for gas flow, and a return unit arranged in the air return cavity. The exhaust unit comprises an exhaust pipe, the dust removal unit comprises a dust removal assembly, the return air mixing unit comprises an air flow driving unit, and the return unit comprises an air return pipe. The complete mold cavity, the exhaust pipe, the dust removal assembly, the air flow driving unit and the air return pipe are connected in sequence to form a gas circulation path.

[0007] Preferably, the return air mixing unit also includes a mixing tube, one end of which is connected to the airflow driving unit. After the upper mold cavity and the lower mold cavity are closed, the other end of the mixing tube is connected to the return unit. A three-way joint is provided in the middle of the mixing tube, and the three-way joint is connected to the external gas supply unit.

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

[0009] Preferably, the dust removal unit also includes a first control component configured to control 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 isolate the exhaust pipe and the dust removal component.

[0010] Preferably, the return air mixing unit also includes a second partition assembly, which is arranged on the lower mold and fixedly connected to the return air pipe. After the upper mold cavity and the lower mold cavity are closed, the mixing pipe is connected to the second partition assembly, and the second partition assembly is used to isolate the gas from flowing back from the return air pipe into the mixing pipe.

[0011] Preferably, the return air mixing unit also 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 return air pipe and the mixing pipe; when gas flow needs to be blocked, the second control component controls the second partition component to isolate the return air pipe and the mixing pipe.

[0012] Preferably, the exhaust unit also includes a first closing plate, a first protrusion is provided in the middle of the first closing plate, during die casting, the surface of the first protrusion and the remaining surface of the upper mold cavity constitute 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 also includes a first sealing baffle and a first closing structure; the first sealing baffle is arranged in the upper mold cavity and fits against 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 also includes a second closed plate, a second protrusion is provided in the middle of the second closed plate, during die casting, the surface of the second protrusion and the remaining surface of the lower mold cavity constitute a complete inner wall of the lower mold cavity, and return air ports are provided at both ends of the second closed plate, and the return air ports are connected to the return air pipe.

[0015] Preferably, the reflux unit also includes a second sealing baffle and a second closing structure; the second sealing plate baffle is arranged in the lower mold cavity and fits against 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] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 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, which provides a necessary closed environment for gas circulation. The exhaust cavity and the return air cavity are respectively located at the two ends of the mold cavity, ensuring that the air in the mold cavity can form an effective horizontal flow path. The complete mold cavity, exhaust pipe, dust removal component, air flow drive unit and return air pipe are connected in sequence to form a gas circulation path, which provides 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 impurities in the air to ensure clean air. When the hydrogen enters the subsequent links, the airflow drive unit generates suction and thrust, guiding the gas into the dust removal component and pushing the clean air back to the mold cavity respectively, realizing the circulation and continuous purification of the gas. After the hydrogen burns, the gas circulation dust removal mechanism starts again to filter the air in the mold cavity for the second time, effectively absorbing water vapor and reducing the water content in the air. Through the exhaust unit, dust removal unit, return air mixing unit and reflux unit, the impurities contained in the water after hydrogen combustion are reduced, avoiding impurities on the inner wall of the lower mold cavity after water vapor evaporation, thereby significantly improving the quality of die-casting of automotive parts.

[0018] 2. The present invention is provided with a mixing tube, which allows clean air to be fully mixed with the hydrogen released from the three-way joint during the flow process. Since the air generates natural suction on the hydrogen in the mixing tube, it ensures that the hydrogen can be evenly and efficiently dispersed into the air, promotes the efficient consumption of oxygen in the subsequent ignition process, reduces the residual unreacted oxygen, and improves the stability of the environment in the die-casting cavity. Through the circulation of air, the hydrogen is evenly mixed with the air in the closed cavity, so that after the air filtration is completed, the oxygen can be consumed in time, thereby improving the die-casting production efficiency.

[0019] 3. The present invention provides a first partition assembly. When the gas circulation dust removal process is started, the first partition assembly is adjusted to an open state, allowing air containing impurities to enter the dust removal assembly through the exhaust pipe for purification. Before hydrogen is ignited to consume oxygen, the first partition assembly is adjusted to a closed state, effectively blocking the flame or high-temperature gas that may be generated by hydrogen combustion from spreading toward the dust removal assembly, thereby protecting the dust removal assembly and preventing hydrogen combustion from damaging the dust removal assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of an integrated die-casting mold for a front side panel of a new energy vehicle according to the present invention.

[0021] Figure 2 It is a left view of an integrated die-casting mold for a front side panel of a new energy vehicle according to the present invention.

[0022] Figure 3 yes Figure 2 Plane section view at AA in the middle.

[0023] Figure 4 yes Figure 2 Stereoscopic cross-sectional view at AA in the middle.

[0024] Figure 5 It is a three-dimensional diagram of an exhaust unit, a dust removal unit, a return air mixing unit and a reflux unit in an integrated die-casting mold for a front side panel of a new energy vehicle according to the present invention.

[0025] Figure 6 It is a three-dimensional cross-sectional view of a first partition component and a first control component in an integrated die-casting mold for a front side panel of a new energy vehicle according to the present invention.

[0026] Figure 7 It is a three-dimensional diagram of a first sealing plate, a first downward driving assembly and a first reset assembly in an integrated die-casting mold for a front side panel of a new energy vehicle of the present invention.

[0027] Figure 8 This is an exploded view of a second partition component and a second control component in an integrated die-casting mold for a front side panel of a new energy vehicle according to the present invention.

[0028] Figure 9 The present invention is a three-dimensional exhaust unit in an integrated die-casting mold for the front side panel of a new energy vehicle. Figure 1 .

[0029] Figure 10 The present invention is a three-dimensional exhaust unit in an integrated die-casting mold for the front side panel of a new energy vehicle. Figure 2 .

[0030] Figure 11 The invention is a three-dimensional reflux unit in an integrated die-casting mold for a front side panel of a new energy vehicle. Figure 1 .

[0031] Figure 12 The invention is a three-dimensional reflux unit in an integrated die-casting mold for a front side panel of a new energy vehicle. Figure 2 .

[0032] 1. The upper mold; 2. The lower mold; 3. The exhaust unit; 31. The exhaust pipe; 32. The first closing plate; 321. The first protrusion; 33. The first sealing baffle; 34. The first closing structure; 341. The first lifting drive structure; 3411. The first linear drive; 3412. The first drive plate; 342. The first guide structure; 3421. The first guide column; 3422. The first guide sleeve; 4. The dust removal unit; 41. The dust removal assembly; 411. The dust removal box; 412. The dust removal filter element; 42. The first partition assembly; 421. The first partition box; 422. The first sealing plate; 423. The first sealing block; 43. The first control assembly; 431. The first pressing drive assembly; 4311. The first rotating shaft; 4312. The first cam; 432. The first reset assembly; 4321. The second guide column; 4322. The first connecting plate; 4323. The first spring; 5. Return air mixing unit; 51. Air flow drive unit; 52. Mixing tube; 521. T-joint; 53. Second partition assembly; 531. Second partition box; 532. Second sealing plate; 533. Second sealing block; 54. Second control assembly; 541. Second downward pressure 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 air unit; 61. Return air pipe; 62. Second closing plate; 621. Second protrusion; 63. Second sealing baffle; 64. Second closing structure; 641. Second lifting drive structure; 6411. Second linear drive; 6412. Second drive plate; 642. Second guide structure; 6421. Fourth guide post; 6422. Second guide sleeve; 7. Gas supply unit; 8. Ignition unit. DETAILED DESCRIPTION

[0033] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Reference Figures 1 to 12As shown: An integrated die-casting mold for the front side panel of a new energy vehicle, comprising an upper mold 1 with an upper mold cavity and a lower mold 2 with a lower mold cavity. The upper mold cavity and the lower mold cavity are combined to form a complete mold cavity. The upper mold 1 is provided with an exhaust cavity connected to the upper mold cavity, and the lower mold 2 is provided with a return air cavity connected to the lower mold cavity, and 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 provided 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 removing gas dust, a return air mixing unit 5 for providing power for gas flow, and a return air 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 airflow driving unit 51, and the return air unit 6 includes a return air pipe 61. The complete mold cavity, the exhaust pipe 31, the dust removal assembly 41, the airflow driving unit 51 and the return air pipe 61 are connected in sequence to form a gas circulation path.

[0035] Specifically, the upper mold 1 is externally connected to a gas supply unit 7 and an ignition unit 8, and the gas supply unit 7 and the ignition unit 8 adopt existing technology. Furthermore, the dust removal assembly 41 includes a dust removal box 411 and a dust removal filter element 412 arranged inside the dust removal box 411 and capable of being removed. 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 airflow drive unit 51. The gas flowing out of the complete mold cavity first passes through the dust removal assembly 41 and then passes through the airflow drive unit 51.

[0036] 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 airflow driving unit 51 generates suction to guide the air in the mold cavity along the exhaust pipe 31 into the dust removal box 411. After being filtered by the dust removal filter element 412 and impurities are removed, the clean air is pushed by the airflow 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 is ensured that the air in the mold cavity can flow horizontally, so that the air in the mold cavity contacts the dust removal component 41. Through the continuous action of the return air mixing unit 5, the air is repeatedly purified, which improves the removal efficiency. Dust effect: After the dust removal process is completed, the gas supply unit 7 injects a quantitative amount of hydrogen into the closed mold cavity, and then the ignition unit 8 ignites the hydrogen. The water produced by the combustion of hydrogen adheres to the inner wall of the lower mold cavity, and the water evaporates into water vapor due to heat. At this time, the return air mixing unit 5 is started again to perform secondary filtration on the air in the mold cavity, absorb water vapor, and effectively reduce the water content in the air. Through the exhaust unit 3, dust removal unit 4, return air mixing unit 5 and reflux unit 6, the impurities contained in the water after the hydrogen combustion are reduced, and impurities are avoided from being left on the inner wall of the lower mold cavity after the evaporation of water vapor, thereby significantly improving the quality of the die-casting of automotive parts.

[0037] Reference Figure 3 、 Figure 4 and Figure 5As shown: the return air mixing unit 5 also includes a mixing tube 52, one end of the mixing tube 52 is connected to the airflow driving unit 51, and after the upper mold cavity and the lower mold cavity are closed, the other end of the mixing tube 52 is connected to the return unit 6, 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 the external gas supply unit 7.

[0038] After the external gas supply unit 7 provides hydrogen into the closed cavity, it is necessary to wait for the hydrogen to diffuse evenly into the closed cavity before igniting and consuming oxygen, otherwise some oxygen will not react with the hydrogen. Therefore, a mixing tube 52 is set between the airflow drive unit 51 and the return air pipe 61, and the three-way joint 521 on the mixing tube 52 is connected to the gas supply unit 7. When clean air flows in the mixing tube 52, the gas supply unit 7 gradually releases the hydrogen toward the three-way joint 521, and the air flowing in the mixing tube 52 generates suction on the hydrogen, sucking the hydrogen into the air and flowing with the air. Through the circulation of the air, the hydrogen is evenly mixed with the air in the closed cavity, so that after the air filtration is completed, the oxygen can be consumed in time, thereby improving the die-casting production efficiency.

[0039] Reference Figure 4 and Figure 6 As shown, the dust removal unit 4 further includes a first partition assembly 42 arranged between the exhaust pipe 31 and the dust removal assembly 41 , and the first partition assembly 42 is used to isolate the gas from flowing from the exhaust pipe 31 to the dust removal assembly 41 .

[0040] Specifically, the first partition assembly 42 includes a first partition box 421, a first sealing plate 422 and a first sealing block 423. The first partition box 421 is arranged at the lower end of the dust removal box 411, and the lower end of the first partition box 421 is connected to the exhaust pipe 31. The first sealing plate 422 is arranged inside the first partition box 421. The first sealing block 423 is arranged on the 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 cone shape, and the maximum diameter of the first sealing block 423 is greater than the diameter of the exhaust pipe 31.

[0041] Since hydrogen is added to the air during the dust removal stage, the air in 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 pass through the exhaust pipe 31 into the dust removal component 41 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 structure, one end of the exhaust pipe 31 is sealed, which can form a tight and effective physical partition, effectively blocking the flame or high-temperature gas that may be generated by the hydrogen combustion from spreading toward the dust removal component 41, thereby protecting the key components in the dust removal component 41 and preventing the hydrogen combustion from damaging the dust removal component 41.

[0042] 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.

[0043] Specifically, the first control component 43 includes a first downward pressure drive component 431 and four first reset components 432. The first downward pressure 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 the two 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 groups. The two groups of first reset components 432 are respectively arranged at the two ends of the first sealing plate 422, and the two first reset components in one group are respectively arranged at the two ends of the first sealing plate 422. The reset assembly 432 is located on both sides of the first rotating shaft 4311. 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 slidingly connected to the second guide column 4321. 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.

[0044] When the first rotating shaft 4311 rotates, causing the base circle end of the first cam 4312 to face the first sealing plate 422, the first springs 4323 in the four first reset assemblies 432 act simultaneously, exerting a uniform and equal force toward the first rotating shaft 4311 on the first connecting plate 4322. This balancing force enables the first connecting plate 4322 to maintain a horizontal state, thereby driving the first sealing block 423 to separate from the exhaust pipe 31, thereby achieving communication with the gas channel. On the contrary, when the first rotating shaft 4311 continues to rotate, causing the first cam 4312 to face the first sealing plate 422, the first springs 4323 in the four first reset assemblies 432 act simultaneously, exerting a uniform and equal force toward the first rotating shaft 4311 on the first connecting plate 4322. When the raised end of the wheel 4312 contacts the first sealing plate 422, the pressure applied by the first cam 4312 to the first sealing plate 422 gradually increases until it exceeds the combined force of the four first springs 4323. At this time, the first sealing plate 422 moves along the second guide column 4321 toward the exhaust pipe 31 under the action of the first cam 4312, and the first sealing block 423 is tightly inserted into the exhaust pipe 31, effectively blocking the gas channel, thereby realizing the switching of the state of the first partition assembly 42 and ensuring on-demand control of the gas flow.

[0045] Reference Figure 3 and Figure 8 As shown: the return air mixing unit 5 also includes a second partition component 53, the second partition component 53 is arranged on the lower mold 2, and the second partition component 53 is fixedly connected to the return air 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 isolate the gas from flowing back from the return air pipe 61 to the mixing pipe 52.

[0046] Specifically, the second partition assembly 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 return air pipe 61. The second sealing plate 532 is arranged inside the second partition box 531. The second sealing block 533 is arranged on the side of the second sealing plate 532 facing the lower end of the second partition box 531. The second sealing block 533 is an inverted cone, and the maximum diameter of the second sealing block 533 is greater than the diameter of the return air pipe 61.

[0047] When hydrogen burns, it will flow back into the mixing pipe 52 along the return pipe 61, and the mixing pipe 52 is connected to the gas supply unit 7. If the combustion spreads to the mixing pipe 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 structure is used to seal one end of the return pipe 61, forming a tight and effective physical partition, effectively blocking the flame or high-temperature gas that may be generated by hydrogen combustion from spreading into the mixing pipe 52, thereby preventing the flame or high-temperature gas from being transmitted to the gas supply unit 7 and reducing the danger.

[0048] 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.

[0049] 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 respectively arranged at both ends of the second sealing plate 532. The reset assembly 542 is 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 slidingly 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.

[0050] When the second rotating shaft 5411 rotates, causing the base circle end of the second cam 5412 to face the second sealing plate 532, the second springs 5423 in the four second reset assemblies 542 work simultaneously, applying a uniform and equal force toward the second rotating shaft 5411 to the second connecting plate 5422. This balancing 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, thereby achieving communication of the gas channel. On the contrary, when the second rotating shaft 5411 continues to rotate, causing the second cam 5412 to face the second sealing plate 532, the second springs 5423 in the four second reset assemblies 542 work simultaneously, applying a uniform and equal force toward the second rotating shaft 5411 to the second connecting plate 5422. When the raised end of the wheel 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 combined force of the four second springs 5423. At this time, the second sealing plate 532 moves along the third guide column 5421 toward the return air pipe 61 under the action of the second cam 5412, and the second sealing block 533 is tightly inserted into the return air pipe 61, effectively blocking the gas channel, thereby realizing the switching of the state of the second partition assembly 53 and ensuring on-demand control of gas flow.

[0051] Reference Figure 3 and Figure 9 As shown: the exhaust unit 3 also includes a first closing plate 32, and 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 mold cavity constitute a complete inner wall of the upper mold 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.

[0052] During the air dust removal stage, the first raised portion 321 on the first closing plate 32 is separated from the upper mold cavity, and an exhaust channel is formed, so that the air in the closed cavity can flow to the exhaust port through the exhaust channel, and then be guided into the exhaust pipe 31, thereby achieving effective air dust removal. During die-casting, the first raised portion 321 on the first closing plate 32 is combined with the upper mold cavity to form the required die-casting shape, which not only ensures the dimensional accuracy and surface quality of the die-casting part, but also effectively prevents the leakage of molten metal, improves the stability and controllability of the die-casting process, thereby realizing the flexible switching of the first closing plate 32 between air dust removal and die-casting operations.

[0053] Reference Figure 9 and Figure 10 As shown: the exhaust unit 3 also includes a first sealing baffle 33 and a first closing structure 34; the first sealing baffle 33 is arranged in the upper mold cavity and fits 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.

[0054] Specifically, the first closing structure 34 includes two first lifting drive structures 341 and two first guide structures 342. The two first lifting drive structures 341 are respectively arranged at the two ends of the first closing plate 32. The first lifting drive structure 341 includes two first linear drivers 3411 symmetrically arranged about 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 guide structures 342 are respectively arranged at the two ends of the first closing plate 32. The first guide structure 342 includes a first guide column 3421 and a first guide sleeve 3422. The first guide column 3421 is connected to the first closing plate 32, the first guide sleeve 3422 is connected to the first sealing baffle 33, and the first guide column 3421 is movably connected to the first guide sleeve 3422.

[0055] In the air dust removal stage, the two first lifting drive structures 341 are started at the same time, and the two first linear drivers 3411 apply forces to the two first drive plates 3412 respectively, 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 angle between the two first drive plates 3412 increases accordingly. The movement of the first drive plates 3412 is transmitted to the first closing plate 32 through the hinge structure, so that the first closing plate 32 is subjected to tension until it is tightly abutted against the first sealing baffle 33, thereby opening the exhaust channel, and the first guide column 3421 moves along the first guide sleeve 3422, so that the first closing plate 32 is tightened. A closing plate 32 keeps moving horizontally, and during the die-casting operation, the two first lifting drive structures 341 are started again at the same time, but at this time the two first linear drivers 3411 drive the two first drive plates 3412 to move in the opposite direction, so that the two first drive plates 3412 simultaneously apply thrust to the first closing plate 32. As the thrust increases, the first closing plate 32 gradually combines with the upper mold 1 to form a complete die-casting cavity. Through the coordinated action of the first lifting drive structure 341 and the first guide structure 342, precise control of the motion trajectory of the first closing plate 32 is achieved, ensuring the smooth progress of the die-casting operation and the air dust removal stage.

[0056] Reference Figure 4 and Figure 11 As shown: the reflux unit 6 also includes a second closed plate 62, and a second protrusion 621 is provided in the middle of the second closed plate 62. During die casting, the surface of the second protrusion 621 and the remaining surfaces of the lower mold cavity constitute a complete inner wall of the lower mold cavity. Return air ports are provided at both ends of the second closed plate 62, and the return air ports are connected to the return air pipe 61.

[0057] During the air dust removal stage, the second raised portion 621 on the second closing plate 62 is separated from the lower mold cavity, and a return air channel is formed, so that the air in the return air pipe 61 can enter the return air channel through the exhaust port and finally enter the closed cavity. During the die-casting, the second raised portion 621 on the second closing plate 62 is combined with the lower mold cavity to jointly shape the required die-casting shape, which not only ensures the dimensional accuracy and surface quality of the die-casting part, but also effectively prevents the leakage of molten metal, improves the stability and controllability of the die-casting process, thereby realizing the flexible switching of the second closing plate 62 between air return and die-casting operations.

[0058] Reference Figure 11 and Figure 12 As shown: the reflow unit 6 also includes 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.

[0059] Specifically, the second closing structure 64 includes two second lifting drive structures 641 and two second guide structures 642. The two second lifting drive structures 641 are respectively arranged at the two ends of the second closing plate 62. The second lifting drive structure 641 includes two second linear drivers 6411 symmetrically arranged about the second closing plate 62. The output end of the second linear driver 6411 is provided with a second drive plate 6412. The two 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 guide structures 642 are respectively arranged at the two ends of the second closing plate 62. The second guide structure 642 includes a fourth guide column 6421 and a second guide sleeve 6422. The fourth guide column 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 column 6421 is movably connected to the second guide sleeve 6422.

[0060] In the air dust removal stage, the two second lifting drive structures 641 are started at the same time, and the two second linear drivers 6411 apply forces to the two second drive plates 6412 respectively, so that the two ends of the second drive plates 6412 connected to the two second linear drivers 6411 move away from each other, and the angle between the two second drive plates 6412 increases accordingly. The movement of the second drive plates 6412 is transmitted to the second closing plate 62 through the hinge structure, so that the second closing plate 62 is subjected to tension until it is tightly abutted against the second sealing baffle 63, thereby opening the return air channel, and the fourth guide column 6421 moves along the second guide sleeve 6422, so that the fourth guide column 6421 moves along the second guide sleeve 6422. The two closing plates 62 keep moving horizontally, and during the die-casting operation, the two second lifting drive structures 641 are started again at the same time, but at this time the two second linear drivers 6411 drive the two second drive plates 6412 to move in the opposite direction, so that the two second drive plates 6412 simultaneously apply thrust to the second closing plate 62. As the thrust increases, the second closing plate 62 gradually combines with the lower mold 2 to form a complete die-casting cavity. Through the coordinated action of the second lifting drive structure 641 and the second guide structure 642, precise control of the movement trajectory of the second closing plate 62 is achieved, ensuring the smooth progress of the die-casting operation and the air dust removal stage.

[0061] The above embodiments merely represent one or more embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by 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 invention is characterized in that: An exhaust cavity communicating with the upper mold cavity is provided on the upper mold (1), and an air return cavity communicating with the lower mold cavity is provided 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) provided in the exhaust cavity, a dust removal unit (4) for removing gas dust, a air return mixing unit (5) for providing power for gas flow, and a return unit (6) provided 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. The return air mixing unit (5) further includes a mixing tube (52), one end of which is connected to the air flow driving unit (51). After the upper mold cavity and the lower mold cavity are closed, the other end of the mixing tube (52) is connected to the return flow unit (6). A three-way joint (521) is provided in the middle of the mixing tube (52), and the three-way joint (521) is connected to the external gas supply unit (7). 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).

2. 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 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 isolate the exhaust pipe (31) and the dust removal component (41).

3. 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 includes a second partition assembly (53), which is arranged on the lower mold (2) and fixedly connected to the return air pipe (61). After the upper mold cavity and the lower mold cavity are closed, the mixing pipe (52) is connected to the second partition assembly (53), and the second partition assembly (53) is used to isolate the gas from flowing back from the return air pipe (61) to the mixing pipe (52).

4. The integrated die-casting mold for the front side panel of a new energy vehicle according to claim 3, characterized in that: The return gas 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 gas pipe (61) and the mixing pipe (52); when gas flow needs to be prevented, the second control component (54) controls the second partition component (53) to isolate the return gas pipe (61) and the mixing pipe (52).

5. 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), wherein a first protrusion (321) is provided 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 provided at both ends of the first closing plate (32), and the exhaust ports are connected to the exhaust pipe (31).

6. The integrated die-casting mold for the front side panel of a new energy vehicle according to claim 5, characterized in that: 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 mold cavity and fits 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.

7. 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 closing plate (62), wherein a second protrusion (621) is provided in the middle of the second closing plate (62). 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. Return air ports are provided at both ends of the second closing plate (62), and the return air ports are connected to the return air pipe (61).

8. The integrated die-casting mold for the front side panel of a new energy vehicle according to claim 7, characterized in that: The reflux unit (6) further includes 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 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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