Oxygen filling type die-casting device and die-casting process based on casting machining

Abstract

The invention discloses an oxygenating type die-casting device based on casting machining and a die-casting process, and relates to the technical field of automobile manufacturing, the oxygenating type die-casting device comprises a die-casting machine, a die, a lifting assembly and a covering assembly, after the die is opened, the lifting assembly moves the covering assembly so that the covering assembly can move to the position between a male die and a female die of the die, and in the process, the die-casting machine is opened; the covering assembly is driven by the driving part, is passively unfolded and covers the mold so as to form a spraying cavity; the cleaning assembly sprays out high-speed airflow, and the mold is cleaned through the high-speed airflow; the spraying assembly is used for spraying a release agent to a mold cavity, and aerial fog generated by spraying is limited in a spraying cavity; the covering assembly is passively driven to be unfolded through high-speed airflow sprayed by the cleaning assembly so as to form a closed spraying cavity, the cleaning airflow and release agent aerial fog are limited in the cavity, position adjustment and buckling actions are synchronously triggered, and the single-time circulation time is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile manufacturing, and in particular to an oxygen-filled die-casting device and a die-casting process based on casting processing. Background Art

[0002] Die casting is a casting method that uses high pressure to force molten metal into a mold cavity, where it is rapidly cooled and solidified under pressure. It is widely used in the automotive industry. During the die-casting process, if the air in the cavity is not promptly expelled, it can lead to defects such as porosity and looseness within the casting, affecting the mechanical properties and quality of the casting. To address this problem, oxygen-filled die-casting technology has emerged. This technology replaces the air in the cavity by introducing oxygen into the mold cavity before die-casting. As the molten metal is filled, the oxygen reacts with the molten metal to form oxide particles, which disperse throughout the casting, reducing the formation of pores.

[0003] During the die-casting process, the application of release agent is a crucial step. The release agent forms a thin film on the mold surface, preventing the molten metal from sticking to the mold and facilitating demolding. It also cools and protects the mold. Currently, in existing die-casting machines, after the mold is opened, a retrieving robot removes the casting. A spraying robot then performs high-pressure cleaning on the mold. After cleaning, the release agent is sprayed. However, this spraying process generates a large amount of aerosol, which escapes and pollutes the surrounding environment. Summary of the Invention

[0004] The purpose of the present invention is to provide an oxygen-filled die-casting device and a die-casting process based on casting processing to solve the deficiencies in the above-mentioned prior art.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solution: an oxygen-filled die-casting device based on casting processing, comprising a die-casting machine, a mold, and a lifting assembly, and further comprising:

[0006] The cover assembly is moved by the lifting assembly after the mold is opened, so that the cover assembly moves between the male and female molds of the mold. During this process, the cover assembly is passively unfolded and covered on the mold to form a spray cavity;

[0007] Cleaning component, the cleaning component sprays high-speed airflow to clean the mold;

[0008] A spraying assembly for spraying a release agent onto the mold cavity, wherein the generated aerosol is confined within the spraying cavity;

[0009] After spraying is completed, the cleaning component sucks the aerosol in the spraying chamber, the lifting component moves upward and simultaneously drives the cover component to retract to separate from the mold.

[0010] Preferably, the die-casting machine is used to control the opening and closing of the mold.

[0011] Preferably, the lifting assembly includes a horizontal portion and a vertical portion, and the position of the covering assembly can be adjusted through the cooperation of the horizontal portion and the vertical portion.

[0012] Preferably, the cover assembly includes a center shell, a sliding sleeve, and a guide sleeve. The center shell is fixedly connected to the lower part of the lifting assembly. The sliding sleeve is slidably connected to the outside of the center shell, and the guide sleeve is fixedly installed on the outside of the sliding sleeve.

[0013] Preferably, an air flow channel is provided between the guide sleeve and the sliding sleeve.

[0014] Preferably, the cleaning assembly includes an air nozzle, a first connecting pipe, an inner collecting pipe, a vertical pipe, a first reducing pipe, a second reducing pipe, an air flow control component, and a second connecting pipe. Several of the air nozzles are connected to the inner collecting pipe through the first connecting pipe, the lower part of the vertical pipe is connected to the inner collecting pipe, the upper part of the vertical pipe is connected to the first reducing pipe, the second reducing pipe is arranged at the upper part of the first reducing pipe, the air flow control component is arranged between the second reducing pipe and the first reducing pipe, one end of the second connecting pipe is connected to the second reducing pipe, and the other end of the second connecting pipe is connected to the two-way air pump.

[0015] Preferably, it also includes a driving part, which includes a central shaft, a flip sleeve, a pin, an annular groove, a linear groove, a base, a spring, and a connecting piece. The base is fixedly mounted on the central shell, the central shaft is rotatably connected to the base, the flip sleeve is fixedly mounted on the central shaft, the annular groove and the linear groove are both opened on the flip sleeve, the pin is fixed on the lifting assembly, one end of the spring is connected to the sliding sleeve, and the other end is connected to the central shaft, one end of the connecting piece is connected to the sliding sleeve, and the other end is connected to the central shaft.

[0016] Preferably, the spray assembly includes an adjustable nozzle, a third connecting pipe, and a fourth connecting pipe. The fourth connecting pipe is fixedly mounted on the center shell, and a plurality of the nozzles are connected to the fourth connecting pipe via the third connecting pipe.

[0017] Preferably, the airflow control component includes an isolation plate, a rotating shaft, and a guide vane. The isolation plate is fixedly mounted on the upper part of the first reducer, and the guide vane is mounted on the rotating shaft. A pair of the rotating shafts are rotatably connected to the isolation plate. According to the different airflow directions, the angle between the pair of guide vanes is passively adjusted.

[0018] A die-casting process based on casting processing includes the following steps:

[0019] S1, die-casting machine controls mold closing: the die-casting machine is started, and the die-casting machine controls the convex and concave dies of the mold to close to form a complete die-casting cavity. Oxygen is then injected into the mold cavity, and then molten metal is injected into the cavity. The die-casting is completed under the pressure of the die-casting machine;

[0020] S2, mold opening: After the die casting is completed, the die casting machine controls the mold opening, the male and female molds are separated, and the formed casting is exposed;

[0021] Removing the casting: removing the casting from the mold manually or by a robotic arm;

[0022] S3, lifting assembly action: the lifting assembly starts, and its horizontal and vertical parts move in coordination to adjust the position of the cover assembly;

[0023] The horizontal part first drives the cover assembly to move in the horizontal direction, aligning it with the area between the male and female molds of the mold. Then the vertical part moves in the vertical direction, accurately moving the cover assembly to between the male and female molds of the mold. The cover assembly is passively expanded and gradually covers the mold to form a closed spray cavity.

[0024] S4, cleaning component starts: The cleaning component is turned on, and the bidirectional air pump supplies air to the second reducer through the second connecting pipe. The airflow passes through the airflow control component and enters the first reducer and the vertical pipe. Finally, a high-speed airflow is ejected from the air nozzle through the first connecting pipe. The high-speed airflow cleans the surfaces of the male and female molds of the mold.

[0025] S5, spraying assembly working: start the spraying assembly, the mold release agent is delivered to the adjustable nozzle through the fourth connecting pipe and the third connecting pipe, and the spray angle and flow rate of the adjustable nozzle are adjusted according to the specific shape of the mold cavity and the spraying requirements, and the mold release agent is evenly sprayed into the mold cavity;

[0026] Aerosol confinement: Since the hood assembly is unfolded to form a spray chamber, the aerosol generated during the spraying process is confined within the chamber;

[0027] S6, the cleaning component switches to suction mode: After spraying is completed, the bidirectional air pump switches its working direction and starts to suck gas from the second connecting pipe. Under the suction action, the mold release agent mist remaining in the spray chamber is sucked into the pipeline of the cleaning component;

[0028] S7, the horizontal and vertical parts of the lifting assembly move together again to remove the cover assembly from between the punch and die of the mold, and the sliding sleeve shrinks inward along the center shell to detach from the mold. The spray cavity disappears and returns to its initial position, ready for the next die-casting cycle.

[0029] In the above technical scheme, the present invention provides an oxygenated die-casting device and die-casting process based on casting processing. The device passively drives the cover component to expand by adjusting the position of the lifting component to form a closed spray cavity, and the cleaning airflow and the release agent mist are confined in the cavity. During cleaning, the high-speed airflow directionally flushes the mold surface, and the residual oxides are cleaned with the airflow, with good cleaning effect and no splashing. During spraying, the mist does not diffuse, and the utilization rate of the release agent is improved; the position adjustment of the cover component and the snap-fit action are triggered synchronously, shortening the single cycle time and improving the beat efficiency; the suction mode is switched by the two-way air pump of the cleaning component, and the residual mist in the cavity is directly sucked out after the spraying is completed, realizing a closed process loop of cleaning, spraying, and suction. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0031] Figure 1 This is a schematic structural diagram of an oxygenated die-casting device based on casting processing and a die-casting process for spraying a release agent;

[0032] Figure 2 This is a schematic structural diagram of an oxygenated die-casting device based on casting processing and a cover assembly of a die-casting process according to the present invention;

[0033] Figure 3 This is a schematic structural diagram of an oxygenated die-casting device based on casting processing and a cleaning component of a die-casting process according to the present invention;

[0034] Figure 4 A schematic diagram of the partial structure of an oxygen-filled die-casting device and die-casting process based on casting processing of the present invention;

[0035] Figure 5 This is a schematic structural diagram of an oxygenated die-casting device based on casting processing and an airflow control component of a die-casting process according to the present invention;

[0036] Figure 6 A partial top view of an oxygenated die-casting device based on casting processing and a lifting component of a die-casting process according to the present invention;

[0037] Figure 7 This is a schematic diagram of the structure of an oxygen-filled die-casting device based on casting processing and a gas nozzle and a nozzle in the die-casting process of the present invention;

[0038] Figure 8 Schematic diagram of an oxygenated die-casting device based on casting processing and a sliding sleeve and a guide sleeve of a die-casting process according to the present invention;

[0039] Figure 9 Schematic diagram of an oxygen-filled die-casting device based on casting processing and a driving part of a die-casting process according to the present invention;

[0040] Figure 10 A is an enlarged schematic diagram of an oxygen-filled die-casting device and die-casting process based on casting processing of the present invention;

[0041] Figure 11 This is an enlarged schematic diagram of B of an oxygen-filled die-casting device and die-casting process based on casting processing of the present invention.

[0042] Explanation of the accompanying drawings: 1. Die-casting machine; 2. Mold; 3. Lifting assembly; 31. Horizontal part; 32. Vertical part; 4. Cover assembly; 41. Center shell; 43. Sliding sleeve; 44. Guide sleeve; 441. Protrusion; 442. Air flow channel; 5. Cleaning assembly; 51. Air nozzle; 52. First connecting pipe; 53. Inner collecting pipe; 54. Vertical pipe; 55. First reducer; 56. Second reducer; 57. Air flow control part; 571. Isolation plate; 572. Rotating shaft; 573. Guide vane; 58. Second connecting pipe; 6. Spraying assembly; 61. Adjustable nozzle; 62. Third connecting pipe; 63. Fourth connecting pipe; 7. Driving part; 71. Center shaft; 72. Flip sleeve; 73. Pin; 74. Annular groove; 75. Linear groove; 76. Base; 77. Spring; 78. Connector. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0044] See also Figure 1-11 The embodiment of the present invention provides an oxygen-filled die-casting device based on casting processing, including a die-casting machine 1, a mold 2 and a lifting assembly 3, and further comprising:

[0045] The cover assembly 4 is moved by the lifting assembly 3 after the mold 2 is opened, so that the cover assembly 4 moves between the male and female molds of the mold 2. During this process, the cover assembly 4 is passively unfolded and covered on the mold 2 to form a spray cavity.

[0046] The cleaning component 5 ejects a high-speed airflow to clean the mold 2;

[0047] A spraying assembly 6 is used to spray a release agent onto the cavity of the mold 2, so that the generated aerosol is confined within the spraying cavity;

[0048] After spraying is completed, the cleaning component 5 sucks the aerosol in the spraying chamber, the lifting component 3 moves upward and simultaneously drives the covering component 4 to retract to separate from the mold 2.

[0049] In the embodiment of the present invention, the die-casting machine 1, the mold 2 and the lifting assembly 3 are all prior arts, and this application does not provide any technical improvements thereto, so their specific working principles are not described in detail here;

[0050] The position of the cover assembly 4 can be controlled by the lifting assembly 3. When the mold 2 is in the closed state, the cover assembly 4 is above the die-casting machine 1. After the mold 2 is opened, the male and female molds are separated, and there is a certain gap between them. At this time, after the part is taken out by the robot, the lifting assembly 3 first controls the cover assembly 4 to translate in the horizontal direction, and then controls it to descend in the vertical direction, so that the cover assembly 4 is accurately moved to between the male and female molds of the mold 2. During the descent of the lifting assembly 3, the cover assembly 4 is passively unfolded and covered on the mold 2 to form a spray cavity.

[0051] At this time, the cleaning component 5 is started and can spray a high-speed airflow toward the mold 2. Under the action of the high-speed airflow, the residual oxides on the mold 2 are cleaned. At the same time, under the action of the high-speed airflow, the surface temperature of the mold 2 is reduced.

[0052] The spraying component 6 sprays the release agent onto the mold 2, and the output end of the spraying component 6 is in the spraying cavity. The aerosol generated during the spraying process is confined in the cavity, which greatly reduces the escape of the release agent.

[0053] After spraying is completed, the cleaning component 5 switches to the suction mode. Under the suction action, the mold release agent mist remaining in the spray chamber is sucked into the pipeline of the cleaning component 5;

[0054] Simultaneously, in the suction mode, the release agent mist remaining in the spray chamber is sucked into the pipeline of the cleaning component 5;

[0055] Compared with traditional open operation, this device passively drives the cover component 4 to expand through the high-speed airflow sprayed by the cleaning component 5 to form a closed spray cavity, which confines the cleaning airflow and the release agent mist in the cavity. During cleaning, the high-speed airflow directionally flushes the surface of the mold 2, and the residual oxides are cleaned along with the airflow, with good cleaning effect and no splashing. During spraying, the mist does not diffuse, and the utilization rate of the release agent is improved. The cleaning and fastening actions are triggered synchronously, shortening the single cycle time and improving the beat efficiency by about 15%. This device switches the suction mode through the two-way air pump of the cleaning component. After spraying is completed, the residual mist in the cavity is directly sucked out, realizing the "cleaning-spraying-suction" process closed loop.

[0056] In an embodiment of the present invention, the die-casting machine 1 is used to control the opening and closing of the mold 2 .

[0057] The die-casting machine 1 is an existing device, and controlling the opening and closing of the mold 2 is only one of its functions, and its working principle will not be described in detail here.

[0058] In the embodiment of the present invention, the lifting assembly 3 includes a horizontal portion 31 and a vertical portion 32 , and the position of the covering assembly 4 is adjusted by the cooperation of the horizontal portion 31 and the vertical portion 32 .

[0059] The horizontal part 31 first drives the covering assembly 4 to move in the horizontal direction so that it is aligned with the area between the punch and the die of the mold 2. Then the vertical part 32 moves in the vertical direction to accurately move the covering assembly 4 between the punch and the die of the mold 2. The horizontal part 31 moves along the opening and closing direction of the mold. According to the different opening and closing gaps, the movement of the horizontal part 31 should be changed accordingly to ensure that the covering assembly 4 is located at the center line position between the punch and the die.

[0060] In the embodiments of the present invention, please refer to Figure 2 and Figure 8 The cover assembly 4 includes a central shell 41, a sliding sleeve 43, and a guide sleeve 44. The central shell 41 is fixedly connected to the lower part of the lifting assembly 3, the sliding sleeve 43 is slidably connected to the outside of the central shell 41, and the guide sleeve 44 is fixedly installed on the outside of the sliding sleeve 43.

[0061] An air flow channel 442 is provided between the guide sleeve 44 and the sliding sleeve 43 .

[0062] The middle shell 41 is fixedly mounted on the lower part of the vertical portion 32. Figure 8 As shown in the figure, the end faces of the sliding sleeve 43 and the guide sleeve 44 are not flush. When the sliding sleeve 43 is extended, since there is a protrusion 441 between the guide sleeve 44 and the sliding sleeve 43, the protrusion 441 abuts against the end face of the mold 2, and the guide sleeve 44 abuts on the mold 2. In this way, the spray cavity and the air flow channel 442 can be connected, and the pressure is released through the reserved air flow channel 442, which helps the sliding sleeve 43 to finally move closer to the mold 2 and unfold through the cover assembly 4 to form a closed spray cavity.

[0063] In the embodiments of the present invention, please refer to Figure 3The cleaning assembly 5 includes an air nozzle 51, a first connecting pipe 52, an inner collecting pipe 53, a vertical pipe 54, a first reducing pipe 55, a second reducing pipe 56, an air flow control component 57, and a second connecting pipe 58. Several of the air nozzles 51 are connected to the inner collecting pipe 53 through the first connecting pipe 52. The lower part of the vertical pipe 54 is connected to the inner collecting pipe 53. The upper part of the vertical pipe 54 is connected to the first reducing pipe 55. The second reducing pipe 56 is arranged at the upper part of the first reducing pipe 55. The air flow control component 57 is arranged between the second reducing pipe 56 and the first reducing pipe 55. One end of the second connecting pipe 58 is connected to the second reducing pipe 56, and the other end of the second connecting pipe 58 is connected to the two-way air pump.

[0064] During cleaning, first, the two-way air pump injects air into the second connecting pipe 58, and the second connecting pipe 58 supplies air to the second reducing pipe 56. The airflow passes through the airflow control part 57 and enters the first reducing pipe 55 and the vertical pipe 54, and finally a high-speed airflow is ejected from the air nozzle 51 through the first connecting pipe 52. The high-speed airflow cleans the surfaces of the punch and die of the mold 2.

[0065] In the embodiments of the present invention, please refer to Figure 9-11 The driving part 7 includes a central shaft 71, a flip sleeve 72, a pin 73, an annular groove 74, a linear groove 75, a base 76, a spring 77, and a connecting piece 78. The base 76 is fixedly mounted on the central shell 41, the central shaft 71 is rotatably connected to the base 76, the flip sleeve 72 is fixedly mounted on the central shaft 71, the annular groove 74 and the linear groove 75 are both opened on the flip sleeve 72, the pin 73 is fixed on the lifting assembly 3, one end of the spring 77 is connected to the sliding sleeve 43, and the other end is connected to the central shaft 71, one end of the connecting piece 78 is connected to the sliding sleeve 43, and the other end is connected to the central shaft 71.

[0066] As shown in the accompanying drawings, the cover assembly 4 is in the expanded state at this time. After the spraying is completed, the lifting assembly 3 drives the cover assembly 4 to move upward, and under the guidance of the pin 73, the pin 73 is forced to rotate. At this time, the connecting member 78 is wrapped around the central axis 71, and the connecting member 78 applies a pulling force to the sliding sleeve 43. The pulling force overcomes the elastic force of the spring 77, so that the sliding sleeve 43 retracts synchronously.

[0067] The position of the turning sleeve 72 on the central shaft 71 is adjustable, and its triggering timing can be changed to achieve corresponding adaptation when the mold height changes.

[0068] In the embodiments of the present invention, please refer to Figure 3The spray assembly 6 includes an adjustable nozzle 61, a third connecting pipe 62, and a fourth connecting pipe 63. The fourth connecting pipe 63 is fixedly mounted on the center shell 41, and several nozzles 61 are connected to the fourth connecting pipe 63 through the third connecting pipe 62.

[0069] The fourth connecting pipe 63 is connected to an external material pump. The release agent is sucked by the material pump and injected into the fourth connecting pipe 63. The release agent is sprayed from the adjustable nozzle 61 through the transportation of the third connecting pipe 62. The atomization effect of the adjustable nozzle is adjustable. The release agent sprayed from the adjustable nozzle 61 is attached to the mold 2. Due to the expansion of the sliding sleeve 43, a spray cavity is formed. The aerosol generated during the spraying process is confined in the cavity, which prevents the aerosol from diffusing into the surrounding environment, reduces the pollution to the working environment, and improves the utilization rate of the release agent.

[0070] In an embodiment of the present invention, the airflow control component 57 includes an isolation plate 571, a rotating shaft 572, and a guide plate 573. The isolation plate 571 is fixedly installed on the upper part of the first reducer 55, and the guide plate 573 is installed on the rotating shaft 572. A pair of the rotating shafts 572 are rotatably connected to the isolation plate 571. According to the different airflow directions, the angle between the pair of guide plates 573 is passively adjusted.

[0071] After spraying is completed, the cleaning component 5 switches to the suction mode, and the two-way air pump switches its working direction to suck gas from the second connecting pipe 58. Under the suction action, the release agent mist remaining in the spray chamber is sucked into the pipeline of the cleaning component 5. At this time, the air flow mixed with the mist enters the first reducer 55. The vertical pipe 54 has a small diameter, and the mists are combined. The diameter of the first reducer 55 is much larger than the vertical pipe 54. After the air flow enters the first reducer 55, the flow rate is reduced and it is difficult to carry the mist to continue to move upward, so as to reduce the upward movement of part of the mist. Similarly, the air flow control component 57 is set at the upper part of the first reducer 55. When the air flow flows upward, the guide plate 573 will flip as attached Figure 5 In the state shown, the distance between the guide blades 573 is reduced, the flow channel is reduced to hinder the passage of airflow, and a limit block is provided at this position to ensure that the guide blades 573 will not close. The guide blades 573 form a V-shaped structure, which helps to reduce the passage of aerosol. In the cleaning mode, the airflow is kept open by the downward airflow pressure; in the suction mode, the airflow is pushed upward by the reverse airflow, and rotates counterclockwise around the rotation axis 572 to reduce the angle.

[0072] The aerosol during suction is temporarily stored in the pipeline of the cleaning component 5. During the next cleaning, the airflow will carry the release agent sucked in the pipeline and spray it out. Since the release agent has viscosity, after being blown out together with the airflow, the release agent is directly sprayed onto the mold 2. The release agent absorbs the oxides on the mold 2, and then the release agent carries the oxides away from the mold 2 as the airflow continues to flow out. Compared with single airflow cleaning, the release agent is mixed in the airflow to achieve a better cleaning effect. Moreover, the flow rate through the sliding sleeve 43, the guide sleeve 44, the mold 2 and the air flow channel 442 is relatively high. When the release agent mixed impurities reach the edge of the blown sliding sleeve 43, the high-speed airflow will carry the release agent mixed impurities outward. Compared with the traditional open-type system with large airflow in the middle and small airflow at the edge, the edge cleaning of this application is more thorough.

[0073] In the existing technology, there are also some release agents that are recycled, but the recycled release agents have been contaminated and cannot be used directly. Even after additional filtration and extraction, they cannot be comparable to new release agents. Therefore, in this solution, the release agents that should have been scrapped are reused, and the release agents are combined with airflow to adsorb and clean the residual oxides in the mold 2, that is, to achieve high-speed airflow directional flushing + release agent synergistic adsorption, which further improves the cleaning effect compared to traditional single gas cleaning.

[0074] A die-casting process based on casting processing includes the following steps:

[0075] The die-casting machine 1 controls the die 2 to close: the die-casting machine 1 is started, and the die-casting machine 1 controls the male and female dies of the die 2 to close, forming a complete die-casting cavity. Oxygen is then injected into the cavity of the die 2, and then molten metal is injected into the cavity. The die-casting molding is completed under the pressure of the die-casting machine 1;

[0076] S2, mold 2 opening: After the die-casting is completed, the die-casting machine 1 controls the mold 2 to open the mold, and the male and female molds are separated to expose the formed casting;

[0077] Removing the casting: removing the casting from the mold 2 manually or by a robotic arm;

[0078] S3, the lifting assembly 3 moves: the lifting assembly 3 starts, and its horizontal part 31 and vertical part 32 move in coordination to adjust the position of the cover assembly 4;

[0079] The horizontal portion 31 first drives the cover assembly 4 to move horizontally, aligning it with the area between the male and female molds of the mold 2. Then the vertical portion 32 moves vertically, accurately moving the cover assembly 4 to between the male and female molds of the mold 2. The cover assembly 4 is passively expanded and gradually covers the mold 2 to form a closed spray cavity.

[0080] S4, cleaning assembly 5 starts: The cleaning assembly 5 is turned on, and the bidirectional air pump supplies air to the second reducer 56 through the second connecting pipe 58. The air flows through the air flow control member 57 and enters the first reducer 55 and the vertical pipe 54. Finally, a high-speed air flow is ejected from the air nozzle 51 through the first connecting pipe 52. The high-speed air flow cleans the surfaces of the male and female molds of the mold 2.

[0081] S5, spray assembly 6 works: spray assembly 6 is started, and the release agent is delivered to the adjustable nozzle 61 through the fourth connecting pipe 63 and the third connecting pipe 62. The spray angle and flow rate of the adjustable nozzle 61 are adjusted according to the specific shape of the mold cavity 2 and the spraying requirements, and the release agent is evenly sprayed to the mold cavity 2;

[0082] Aerosol confinement: Since the cover assembly 4 is unfolded to form a spraying cavity, the aerosol generated during the spraying process is confined within the cavity;

[0083] S6, the cleaning component 5 switches to the suction mode: After spraying is completed, the bidirectional air pump switches its working direction and starts to suck gas from the second connecting pipe 58. Under the suction action, the mold release agent mist remaining in the spray chamber is sucked into the pipeline of the cleaning component 5;

[0084] S7, the horizontal part 31 and the vertical part 32 of the lifting assembly 3 move together again to remove the cover assembly 4 from between the punch and the die of the mold 2, and the sliding sleeve 43 shrinks inward along the center shell 41 to separate from the mold 2. The spray cavity disappears and returns to the initial position, preparing for the next die-casting cycle.

[0085] Through mechanical structure innovation and process flow optimization, this device solves the pain points of traditional die-casting, such as incomplete cleaning, low spraying efficiency, and serious pollution. It is particularly suitable for the mass production of high-precision, complex structure castings, and has significant industrial application value. It directly improves the strength, pressure resistance and fatigue life of key automotive components (such as engine cylinders, gearbox housings, etc.), reduces the risk of failures caused by defects, ensures driving safety, and provides a replicable and efficient die-casting solution for automobile manufacturing.

[0086] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. An oxygen-filled die-casting device based on casting processing, comprising a die-casting machine (1), a mold (2) and a lifting assembly (3), characterized in that: Also includes: A cover assembly (4), after the mold (2) is opened, the lifting assembly (3) moves the cover assembly (4) so that the cover assembly (4) moves between the male mold and the female mold of the mold (2). During this process, the cover assembly (4) receives the drive of the driving unit (7), passively unfolds and covers the mold (2) to form a spray cavity; A cleaning component (5) ejects a high-speed airflow to clean the mold (2); A spraying assembly (6) for spraying a release agent onto the mold cavity of the mold (2), wherein the spraying is performed until the generated aerosol is confined within the spraying cavity; After spraying is completed, the cleaning component (5) sucks the aerosol in the spraying chamber, and the lifting component (3) moves upward and simultaneously drives the cover component (4) to retract to separate from the mold (2).

2. The oxygen-filled die-casting device based on casting processing according to claim 1, characterized in that: The die-casting machine (1) is used to control the opening and closing of the mold (2).

3. The oxygen-filled die-casting device based on casting processing according to claim 1, characterized in that: The lifting assembly (3) comprises a horizontal portion (31) and a vertical portion (32), and the position of the covering assembly (4) is adjusted by the cooperation of the horizontal portion (31) and the vertical portion (32).

4. The oxygen-filled die-casting device based on casting processing according to claim 1, characterized in that: The cover assembly (4) comprises a central shell (41), a sliding sleeve (43), and a flow guide sleeve (44); the central shell (41) and the lower portion of the lifting assembly (3) are fixedly connected; the sliding sleeve (43) is slidably sleeved on the outside of the central shell (41); and the flow guide sleeve (44) is fixedly mounted on the outside of the sliding sleeve (43).

5. The oxygen-filled die-casting device based on casting processing according to claim 4, characterized in that: An air flow channel (442) is provided between the guide sleeve (44) and the sliding sleeve (43).

6. The oxygen-filled die-casting device based on casting processing according to claim 4, characterized in that: The cleaning assembly (5) comprises an air nozzle (51), a first connecting pipe (52), an inner collecting pipe (53), a vertical pipe (54), a first reducing pipe (55), a second reducing pipe (56), an air flow control member (57), and a second connecting pipe (58). A plurality of the air nozzles (51) are connected to the inner collecting pipe (53) through the first connecting pipe (52). The lower portion of the vertical pipe (54) is connected to the inner collecting pipe (53). The upper portion of the vertical pipe (54) is connected to the first reducing pipe (55). The second reducing pipe (56) is arranged at the upper portion of the first reducing pipe (55). The air flow control member (57) is arranged between the second reducing pipe (56) and the first reducing pipe (55). One end of the second connecting pipe (58) is connected to the second reducing pipe (56), and the other end of the second connecting pipe (58) is connected to a two-way air pump.

7. The oxygen-filled die-casting device based on casting processing according to claim 6, characterized in that: The driving part (7) includes a rotating shaft (71), a flip sleeve (72), a pin (73), an annular groove (74), a linear groove (75), a base (76), a spring (77), and a connecting member (78). The base (76) is fixedly mounted on the central shell (41). The rotating shaft (71) is rotatably connected to the base (76). The flip sleeve (72) is fixedly mounted on the rotating shaft (71). The annular groove (74) and the linear groove (75) are both formed on the flip sleeve (72). The pin (73) is fixed on the lifting assembly (3). One end of the spring (77) is connected to the sliding sleeve (43), and the other end is connected to the rotating shaft (71). One end of the connecting member (78) is connected to the sliding sleeve (43), and the other end is connected to the rotating shaft (71).

8. The oxygen-filled die-casting device based on casting processing according to claim 4, characterized in that: The spray assembly (6) comprises an adjustable nozzle (61), a third connecting pipe (62), and a fourth connecting pipe (63); the fourth connecting pipe (63) is fixedly mounted on the center shell (41); and a plurality of the nozzles (61) are connected to the fourth connecting pipe (63) via the third connecting pipe (62).

9. The oxygen-filled die-casting device based on casting processing according to claim 6, characterized in that: The airflow control member (57) comprises an isolation plate (571), a rotating shaft (572), and a guide vane (573). The isolation plate (571) is fixedly mounted on the upper portion of the first reducer (55). The guide vane (573) is mounted on the rotating shaft (572). A pair of the rotating shafts (572) are rotatably connected to the isolation plate (571). The angle between the pair of guide vanes (573) is passively adjusted according to different airflow directions.

10. A die-casting process based on casting processing, which is implemented based on the die-casting device according to claims 1-9, characterized in that: The following steps are involved: S1, the die-casting machine (1) controls the mold (2) to close: the die-casting machine (1) is started, and the die-casting machine (1) controls the male and female molds of the mold (2) to close to form a complete die-casting cavity, oxygen is filled into the cavity of the mold (2), and then molten metal is injected into the cavity, and the die-casting molding is completed under the pressure of the die-casting machine (1); S2, mold (2) opening: after die casting is completed, the die casting machine (1) controls the mold (2) to open the mold, and the male and female molds are separated to expose the formed casting; Removing the casting: removing the casting from the mold (2) manually or by a robotic arm; S3, the lifting assembly (3) moves: the lifting assembly (3) starts, and its horizontal portion (31) and vertical portion (32) move in coordination to adjust the position of the cover assembly (4); The horizontal portion (31) first drives the cover assembly (4) to move in the horizontal direction so that it is aligned with the area between the male die and the female die of the mold (2), and then the vertical portion (32) moves in the vertical direction to accurately move the cover assembly (4) to between the male die and the female die of the mold (2). The cover assembly (4) is passively unfolded and gradually covers the mold (2) to form a closed spray cavity. S4, the cleaning component (5) is started: the cleaning component (5) is turned on, and the bidirectional air pump supplies air to the second reducer (56) through the second connecting pipe (58), and the air flow passes through the air flow control member (57) and enters the first reducer (55) and the vertical pipe (54), and finally ejects a high-speed air flow from the air nozzle (51) through the first connecting pipe (52), and the high-speed air flow cleans the surfaces of the male and female molds of the mold (2); S5, the spraying assembly (6) works: the spraying assembly (6) is started, and the mold release agent is transported to the adjustable nozzle (61) through the fourth connecting pipe (63) and the third connecting pipe (62). According to the specific shape of the mold cavity (2) and the spraying requirements, the spraying angle and flow rate of the adjustable nozzle (61) are adjusted to evenly spray the mold release agent to the mold cavity (2); Aerosol confinement: since the cover assembly (4) is unfolded to form a spraying cavity, the aerosol generated during the spraying process is confined within the cavity; S6, the cleaning component (5) switches to the suction mode: after the spraying is completed, the bidirectional air pump switches the working direction and sucks gas from the second connecting pipe (58). Under the suction action, the mold release agent mist remaining in the spraying cavity is sucked into the pipeline of the cleaning component (5); At step S7, the horizontal portion (31) and the vertical portion (32) of the lifting assembly (3) move in coordination again, removing the cover assembly (4) from between the male and female molds of the mold (2). The sliding sleeve (43) contracts inward along the central shell (41) to detach from the mold (2). The spray cavity disappears and returns to its initial position, preparing for the next die-casting cycle.

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