Automobile accessory die-casting die and using method thereof

Abstract

The invention relates to the technical field of die-casting dies, in particular to an automobile part die-casting die and a using method thereof.The automobile part die-casting die comprises a base, guide rails are vertically and fixedly arranged at the four corners of the top of the base, and electric control sliding seats are slidably arranged on the guide rails. According to the automobile part die-casting die and the using method thereof, through a die core-transverse shaft-edge block linkage structure, when the die core is subjected to weight unbalance due to abrasion and fracture, the die core can naturally incline around the transverse shaft, and the visual physical inclination state can rapidly remind a user that the die core is damaged; faults can be judged without depending on complex sensors or detection instruments, and the problem that die-casting products are scrapped in batches due to the fact that hidden damage of the die cores is not found in time is solved. Meanwhile, compared with a traditional mode of manually and regularly checking the mold core, the design greatly shortens the fault recognition time, so that a user can clearly replace the mold core at the first time, the mold overhauling efficiency is remarkably improved, and the shutdown waiting time of equipment is shortened.

Description

Technical Field

[0001] This invention relates to the field of die-casting mold technology, specifically to a die-casting mold for automotive parts and its usage method. Background Technology

[0002] In the mass production of automotive metal parts, die-casting molds are the core equipment for forming parts, and their operational stability, fault response efficiency, and ease of operation directly affect production efficiency and product qualification rate. However, in the process of developing existing automotive part die-casting molds, the inventors discovered the following problems with the existing technology:

[0003] Delayed identification of mold core faults can easily lead to batch scrapping: Existing die-casting mold cores are subjected to high temperatures, high pressures, and molten metal erosion over long periods, making them prone to wear, localized fractures, and other damage. However, there is a lack of intuitive and real-time fault indication mechanisms. Traditional methods rely on periodic manual disassembly and inspection, which is not only time-consuming and labor-intensive but may also result in the failure to detect hidden damage to the mold core within the inspection interval, leading to batch defects in subsequent die-cast products, increasing raw material waste and production costs.

[0004] The lack of safety protection in fault conditions can easily lead to equipment accidents: When the mold core is damaged, if the operator accidentally starts the mold closing program, the damaged mold core may get stuck in the cavity, causing the mold sleeve to fail to close or separate properly, which may lead to equipment failures such as overload of the electric control drive components and deformation of the mold cavity; in severe cases, it may also cause safety hazards due to leakage of molten metal. Existing molds have not been designed with effective mechanical protection structures for this scenario, and the safety redundancy is insufficient.

[0005] Disassembling damaged mold cores is cumbersome, labor-intensive, and inefficient: After a mold core is damaged, existing molds require manual shutdown and disassembly of the mold sleeve fixing structure (such as bolts, clips, etc.) to remove the damaged mold core. The operation steps are complicated and time-consuming, which seriously affects the continuity of production. At the same time, when manually handling and cleaning damaged mold cores, improper operation may cause secondary damage to other precision parts of the mold (such as guide rails and slides), further increasing equipment maintenance costs.

[0006] In view of this, we propose a die-casting mold for automotive parts and its application method. Summary of the Invention

[0007] The purpose of this invention is to provide a die-casting mold for automotive parts and its method of use, to solve the problems mentioned in the background art, such as delayed identification of mold core faults, lack of safety protection in fault conditions, and cumbersome disassembly of damaged mold cores. To achieve the above objective, this invention provides the following technical solution: a die-casting mold for automotive parts, including a base, with guide rails vertically fixed at the four corners of the top of the base, electrically controlled slide blocks slidably mounted on the guide rails, and mold sleeves disposed between the four electrically controlled slide blocks. A mold sleeve is also disposed on the top of the base, with two mold sleeves facing each other.

[0008] The mold sleeve contains a mold core for die casting;

[0009] The mold sleeve has sliding grooves on both the front and rear sides, and a sliding table is slidably arranged in the sliding groove. A pressure spring is provided at the bottom of the sliding table, and a horizontal shaft is rotatably arranged on the sliding table. The horizontal shaft is connected to the mold core, and the mold core is kept horizontally flat by the horizontal shaft.

[0010] Preferably, the outer end of the horizontal axis is provided with a prism block, and a first limiting frame is fixedly provided on the outer side of the mold sleeve. The first limiting frame is provided with a circular groove that allows the prism block to rotate and a downward sliding groove that prevents the prism block from rotating.

[0011] Preferably, grooves are provided on both the left and right sides of the bottom of the mold sleeve, and a spring-loaded trigger plate is provided in the groove and pressed by the inclined mold core. A motor controlled by the trigger plate is fixedly installed on the electric control slide, and a hook is provided on the motor shaft.

[0012] A free slide block is slidably disposed on the guide rail, and the free slide block is connected to the mold sleeve. A suspension spring is disposed between the free slide block and the top of the guide rail.

[0013] The motor drives the hook to rotate, connecting and disconnecting the free slide and the electrically controlled slide.

[0014] Preferably, the mold core has transverse grooves on both the front and rear sides, and the mold core is slidably connected to the transverse shaft through the transverse grooves. The transverse shaft has a threaded inner hole, and a locking pin is threadedly connected in the inner hole. When the locking pin moves inward, it locks the mold core along the transverse shaft. When the locking pin moves outward, it unlocks the mold core.

[0015] The outer end of the locking pin is provided with a ridge head, and a second limiting frame is provided on the outer side of the first limiting frame, and a limiting groove is provided on the second limiting frame to prevent the ridge head from rotating during the up and down movement.

[0016] The mold sleeve has side openings on both the left and right sides for the inclined mold core to slide out.

[0017] Preferably, waste core racks corresponding to the side openings are fixedly installed on both the left and right sides of the base.

[0018] Preferably, an elastic washer is fitted on the outer wall of the horizontal shaft, and the elastic washer is located between the slide and the mold core.

[0019] Preferably, a buffer rubber pad is fixedly provided on the inner side wall of the waste core rack, and the surface of the buffer rubber pad has an arc-shaped structure.

[0020] A method for using a die-casting mold for automotive parts includes the following steps:

[0021] S1. Slide the mold core to the horizontal axis of the slide table through the front and rear side transverse grooves. Rotate the threaded locking pin inside the horizontal axis to move the locking pin inward along the inner hole until the mold core is completely locked. The edge of the outer end of the locking pin is embedded in the limiting groove of the second limiting frame. The slide table remains stable under the support of the bottom bearing spring. The mold core is in a horizontally flat state through the horizontal axis. At the same time, the edge block at the outer end of the horizontal axis is in the circular groove of the first limiting frame. The hook on the electric control slide is connected to the free slide, completing the initial preparation.

[0022] S2. Start the electrically controlled slide block. When the electrically controlled slide block slides down along the guide rail, it simultaneously pulls the free slide block down, causing the upper mold sleeve to move closer to the lower mold sleeve on the base and press precisely together. During this process, the horizontal shaft moves down synchronously with the mold sleeve. The edge block at the outer end of the horizontal shaft slides from the circular groove of the first limiting frame into the downward groove, restricting the rotation of the mold core. The edge head at the outer end of the locking pin moves down synchronously with the mold sleeve in the limiting groove of the second limiting frame, ensuring that the die-casting cavity maintains a stable shape.

[0023] S3. Inject a set amount of molten metal into the complete die-casting cavity formed after mold closing. Under high pressure, the metal fully fills the cavity. After the metal cools and solidifies, the die-casting process of the automotive parts is completed.

[0024] S4. Control the electric slide to move upward along the guide rail, causing the upper mold sleeve to separate from the lower mold sleeve and reset; the horizontal shaft moves upward with the mold sleeve, and the ridge block at the outer end of the horizontal shaft returns from the lower moving groove of the first limit frame to the circular groove, and the mold core restores its rotational freedom; the ridge head moves upward synchronously with the mold sleeve in the limit groove, and the hook remains connected to the free slide, waiting for the next die casting cycle.

[0025] S5. If the mold core is intact, it will always remain horizontal and can be directly repeated for the next die casting operation. If the mold core is unbalanced on both sides due to wear, breakage, or other problems, it will rotate and tilt around the horizontal axis. One side of the tilted mold core will press against the spring-loaded trigger plate in the bottom groove of the mold sleeve. The trigger plate will start the motor on the electric control slide, and the motor will drive the hook to rotate, causing the hook to disconnect from the free slide. At this time, the electric control slide cannot pull the free slide down, thus avoiding improper mold closing operation under fault conditions.

[0026] S6. When the mold core is tilted, the edge of the outer end of the locking pin is restricted by the limiting groove of the second limiting frame and cannot rotate. The tilting force of the mold core drives the locking pin to move outward along the inner hole, releasing the locking pin from locking the mold core. The tilted mold core, which is no longer fixed, slides out from the side openings on the left and right sides of the mold sleeve and falls into the corresponding waste core frames on both sides of the base.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] In this invention, through the linkage structure of "mold core-horizontal axis-edge block," when the mold core experiences weight imbalance due to wear and breakage, it can naturally tilt around the horizontal axis. This intuitive physical tilt quickly alerts the user that the mold core is damaged, eliminating the need for complex sensors or testing instruments to diagnose the fault and preventing the problem of batch scrapping of die-cast products due to undetected hidden damage to the mold core. Furthermore, compared to traditional manual periodic inspections of the mold core, this design significantly shortens the fault identification time, allowing users to immediately identify the need for mold core replacement, significantly improving mold maintenance efficiency and reducing equipment downtime.

[0029] In this invention, a safety linkage system of "trigger plate-motor-hook" is designed to address potential improper mold closing operations after mold core damage. When the mold core tilts, it presses against the spring-loaded trigger plate, which in turn activates the motor to rotate the hook and disengage it from the free slide. Even if the electrically controlled slide is mistakenly moved downwards at this time, the connection between the electrically controlled slide and the free slide (connected to the upper mold sleeve) is broken, preventing the upper mold sleeve from being pressed together. This completely blocks the mold closing action under fault conditions from a structural perspective, avoiding safety accidents such as mold cavity deformation, equipment overload damage, or molten metal leakage caused by continued use of the damaged mold core, thus ensuring the safety of both operators and equipment.

[0030] In this invention, by utilizing the synergistic effect of the "edge head - second limiting frame - locking pin," when the mold core is tilted, the edge head at the outer end of the locking pin is restricted from rotating by the limiting groove of the second limiting frame. The tilting force of the mold core will cause the locking pin to rotate out along the inner hole of the horizontal axis, automatically releasing the lock on the mold core. At the same time, the side openings on the left and right sides of the mold sleeve cooperate with the corresponding waste core racks on the base, allowing the unlocked tilted mold core to automatically slide into the waste core rack from the side openings, eliminating the need for manual disassembly and handling of damaged mold cores. This design not only eliminates the cumbersome steps of traditional mold core disassembly (such as removing fixing bolts and adjusting positioning), but also achieves directional collection of damaged mold cores, reducing manual intervention, lowering the labor intensity and labor costs of operators, and avoiding collision damage to other parts of the mold during mold core disassembly. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of the guide rail, the electrically controlled slide, and the free slide of the present invention;

[0033] Figure 3 This is a schematic diagram of the upper and lower mold sleeves and mold core of the present invention. Figure 1 ;

[0034] Figure 4 This is a schematic diagram of the upper and lower mold sleeves and mold core of the present invention. Figure 2 ;

[0035] Figure 5 This is an exploded view of the mold sleeve and mold core of the present invention;

[0036] Figure 6 This is a three-dimensional structural cross-sectional view of the mold of the present invention;

[0037] Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle;

[0038] Figure 8 This is an exploded view of the horizontal axis, the first limiting frame, and the second limiting frame of the present invention;

[0039] Figure 9 This is an exploded view of the horizontal axis and locking pin of the present invention.

[0040] In the diagram: 1. Base; 2. Guide rail; 3. Electrically controlled slide; 4. Mold sleeve; 5. Mold core; 6. Slide groove; 7. Slide table; 8. Pressure spring; 9. Horizontal shaft; 10. Edge block; 11. First limiting frame; 12. Circular groove; 13. Lowering groove; 14. Groove; 15. Trigger plate; 16. Motor; 17. Hook; 18. Free slide; 19. Suspension spring; 20. Horizontal groove; 21. Inner hole; 22. Locking pin; 23. Edge head; 24. Second limiting frame; 25. Limiting groove; 26. Side opening; 27. Waste core frame. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Please see Figures 1 to 9 This invention provides a technical solution: a die-casting mold for automotive parts, including a base 1, with guide rails 2 vertically fixed at the four corners of the top of the base 1, electrically controlled slide blocks 3 slidably mounted on the guide rails 2, and mold sleeves 4 disposed between the four electrically controlled slide blocks 3. A mold sleeve 4 is also disposed on the top of the base 1, with two mold sleeves 4 facing each other. By connecting the mold sleeves 4 to the electrically controlled slide blocks 3 and the base 1 respectively, the upper and lower mold sleeves 4 can be accurately closed and opened by sliding the electrically controlled slide blocks 3 along the guide rails 2, providing a stable cavity foundation for die casting of automotive parts and avoiding cavity misalignment problems caused by manual mold closing. At the same time, the four electrically controlled slide blocks 3 are driven synchronously to ensure uniform force when the upper mold sleeve 4 moves downward, improving the mold closing accuracy.

[0043] The mold sleeve 4 contains a mold core 5 for die casting; as the core component of the die casting cavity, the mold core 5 has a surface cavity that is adapted to the structure of the automotive parts to be die cast, ensuring the molding quality of the die casting products.

[0044] The mold sleeve 4 has grooves 6 on both the front and rear sides, and a slide table 7 is slidably arranged in the grooves 6. A pressure spring 8 is provided at the bottom of the slide table 7, and a horizontal shaft 9 is rotatably arranged on the slide table 7. The horizontal shaft 9 is connected to the mold core 5, and the mold core 5 is kept horizontally flat by the horizontal shaft 9. The grooves 6 provide guidance for the slide table 7 to slide up and down, while the pressure spring 8 can provide buffer support for the slide table 7 when the mold is closed, so as to avoid the mold core 5 being directly subjected to the impact force of the mold closing and thus being damaged. At the same time, the rotatable connection design between the horizontal shaft 9 and the slide table 7 allows the mold core 5 to tilt flexibly around the horizontal shaft 9 when there is a weight imbalance, providing a structural basis for subsequent fault indication and automatic disassembly.

[0045] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 9 As shown, the outer end of the horizontal axis 9 is provided with a prism block 10, and the outer side of the mold sleeve 4 is fixedly provided with a first limiting frame 11. The first limiting frame 11 is provided with a circular groove 12 that allows the prism block 10 to rotate, and a downward sliding groove 13 that prevents the prism block 10 from rotating. The cooperation between the prism block 10 and the first limiting frame 11 forms a "rotation allowed-restricted" switching mechanism: before the mold is closed, the prism block 10 is located in the circular groove 12, and the mold core 5 can rotate freely to cope with weight imbalance; when the mold is closed, as the mold sleeve 4 moves down, the prism block 10 slides into the downward sliding groove 13. Because the downward sliding groove 13 is adapted to the shape of the prism block 10 (non-circular), the prism block 10 cannot rotate, thereby restricting the rotation of the mold core 5, ensuring the stability of the cavity during the die casting process, and avoiding product size deviation caused by the rotation of the mold core 5.

[0046] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 9As shown, grooves 14 are provided on both the left and right sides of the bottom of the mold sleeve 4, and a spring-loaded trigger plate 15 is provided in the groove 14, which is pressed by the inclined mold core 5. A motor 16 controlled by the trigger plate 15 is fixedly installed on the electrically controlled slide 3, and a hook 17 is provided on the shaft of the motor 16. A free slide 18 is slidably installed on the guide rail 2 and is connected to the mold sleeve 4. A suspension spring 19 is provided between the free slide 18 and the top of the guide rail 2. The motor 16 drives the hook 17 to rotate to connect the free slide 18 and the electrically controlled slide 3. Disconnection; the groove 14 provides installation space for the trigger plate 15, and the spring design keeps the trigger plate 15 in the reset state when it is not under pressure, avoiding accidental triggering; the cooperation between the free slide 18 and the suspension spring 19 can keep the upper mold sleeve 4 in the upper position by the tension of the suspension spring 19 after the hook 17 is disconnected, preventing it from falling freely; and the linkage design of "trigger plate 15-motor 16-hook 17" can automatically cut off the drive of the electric control slide 3 to the free slide 18 when the mold core 5 is tilted, forming a safety protection and avoiding forced mold closing in the event of a fault.

[0047] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 9 As shown, transverse grooves 20 are provided on both the front and rear sides of the mold core 5, and the mold core 5 is slidably connected to the transverse shaft 9 through the transverse grooves 20. The transverse shaft 9 has a threaded inner hole 21 inside, and a locking pin 22 is threadedly connected in the inner hole 21. When the locking pin 22 moves inward, it locks the mold core 5 along the transverse shaft 9. When the locking pin 22 moves outward, it unlocks the mold core 5. The sliding fit between the transverse groove 20 and the transverse shaft 9 provides guidance for the installation and disassembly of the mold core 5, ensuring the precise positioning of the mold core 5. The threaded locking pin 22 can switch between "locking" and "unlocking" by rotation. When locked, it can enhance the connection stability between the mold core 5 and the transverse shaft 9 and prevent the mold core 5 from shifting during die casting. When unlocked, it can release the mold core 5, preparing for subsequent automatic sliding out.

[0048] The outer end of the locking pin 22 is provided with a ridge head 23, and the outer side of the first limiting frame 11 is provided with a second limiting frame 24. The second limiting frame 24 is provided with a limiting groove 25 that prevents the ridge head 23 from rotating during the up and down movement. The cooperation between the ridge head 23 and the limiting groove 25 restricts the rotational freedom of the locking pin 22, so that when the mold core 5 is tilted, the locking pin 22 cannot rotate synchronously with the mold core 5. Under the action of the tilting force of the mold core 5, it rotates outward along the inner hole 21 of the horizontal axis 9 to achieve automatic unlocking without manual operation. At the same time, the limiting groove 25 provides an up and down movement channel for the ridge head 23, ensuring that the locking pin 22 moves synchronously with the mold sleeve 4 during the mold closing and mold opening process, without affecting the stability of the cavity.

[0049] The mold sleeve 4 has side openings 26 on both the left and right sides for the tilted mold core 5 to slide out. The opening position of the side openings 26 is adapted to the sliding trajectory of the mold core 5 after tilting, ensuring that the damaged mold core 5 can slide out of the mold sleeve 4 smoothly and avoid getting stuck in the mold sleeve 4, which would cause the equipment to stop. At the same time, the size of the side openings 26 is slightly larger than that of the mold core 5, which not only ensures that the mold core 5 slides out smoothly, but also prevents the molten metal from leaking from the opening, thus taking into account both practicality and sealing.

[0050] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 9 As shown, waste core racks 27 corresponding to the side openings 26 are fixedly installed on both the left and right sides of the base 1. The waste core racks 27 on the left and right sides of the base 1 corresponding to the side openings 26 can first accurately receive the damaged mold cores 5 that automatically slide out from the side openings 26 of the mold sleeve 4, preventing the mold cores 5 from falling randomly to the ground around the equipment. This reduces the amount of subsequent cleaning work and prevents the mold cores 5 from hitting the guide rails 2, the electric control slide 3 and other equipment components when they fall, causing additional damage. At the same time, this design can avoid the safety hazards caused by the scattering of damaged mold cores 5, and can also prevent the environment from becoming messy due to the random stacking of metal mold cores 5. It is convenient to uniformly recycle or scrap the damaged mold cores 5 in the future, and maintain the cleanliness and safety of the die casting operation site. In addition, this design can also form a closed loop with the core process of "automatic disassembly of damaged mold cores 5" in the original application, so that the process of "unlocking the mold core 5 by tilting - sliding out from the side opening 26 - falling into the waste core rack 27" does not require temporary manual support, effectively improving the efficiency of automated mold operation and reducing manual intervention.

[0051] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 9As shown, an elastic washer is fitted on the outer wall of the horizontal shaft 9. The elastic washer is located between the slide table 7 and the mold core 5. When the mold core 5 becomes unbalanced due to wear and breakage and rotates rapidly around the horizontal shaft 9, the elastic washer can absorb and disperse the instantaneous collision force between the mold core 5 and the slide table 7 through its own elastic deformation, slowing down the tilting speed of the mold core 5. This avoids problems such as scratches on the outer wall of the horizontal shaft 9 and deformation of the connection part of the slide table 7 caused by rigid collision between the two, protecting the connection structure between the horizontal shaft 9 and the slide table 7, and extending the service life of the components. When die casting requires maintaining a strictly horizontal state to ensure cavity accuracy, the elastic washer can fill the tiny gap between the slide table 7 and the mold core 5 in its natural state. This prevents the mold core 5 from wobbling slightly due to minor equipment vibrations during mold closing and die casting, reducing dimensional deviations in the die-cast products caused by mold core 5 displacement and improving product molding accuracy. At the same time, since both the mold core 5 and the slide table 7 are made of metal, the elastic washer, as an intermediate isolation layer, can also eliminate metal friction noise caused by direct contact between the two when the mold core 5 tilts or resets, reducing wear on the contact surface and lowering the mold maintenance frequency.

[0052] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 9 As shown, a buffer rubber pad is fixedly installed on the inner wall of the waste core rack 27. The surface of the buffer rubber pad has an arc-shaped structure. When the damaged mold core 5 slides out from the side opening 26, the buffer rubber pad can absorb the impact force of the mold core 5 sliding down by its own elasticity, avoiding the mold core 5 from breaking or the inner wall of the waste core rack 27 from being dented and deformed due to rigid collision with the metal inner wall of the waste core rack 27, thus protecting the structural integrity of both and extending their service life. At the same time, the arc-shaped surface can form a "guide channel" to guide the mold core 5 to fall smoothly along the preset trajectory, avoiding the mold core 5 from getting stuck or bouncing in the waste core rack 27, ensuring that the mold core 5 is accurately and stably stored in the waste core rack 27 without the need for manual adjustment of the mold core 5's position. In addition, considering that both the mold core 5 and the waste core rack 27 are made of metal, they are prone to generating a lot of noise when they collide. The buffer rubber pad can also significantly reduce this collision noise, improve the working environment of the die casting workshop, and meet the noise control requirements of industrial production.

[0053] A method for using a die-casting mold for automotive parts includes the following steps:

[0054] S1. The mold core 5 is slidably connected to the horizontal axis 9 of the slide table 7 through the front and rear side transverse grooves 20. The threaded locking pin 22 inside the horizontal axis 9 is rotated so that the locking pin 22 moves inward along the inner hole 21 until the mold core 5 is completely locked. The edge 23 at the outer end of the locking pin 22 is embedded in the limiting groove 25 of the second limiting frame 24. The slide table 7 is kept stable under the support of the bottom bearing spring 8. The mold core 5 is in a horizontal flat state through the horizontal axis 9. At the same time, the edge block 10 at the outer end of the horizontal axis 9 is in the circular groove 12 of the first limiting frame 11. The hook 17 on the electric control slide 3 is connected to the free slide 18, and the initial preparation is completed.

[0055] S2. Start the electric control slide 3. When the electric control slide 3 slides down along the guide rail 2, it simultaneously pulls the free slide 18 down, causing the upper mold sleeve 4 to move closer to the lower mold sleeve 4 on the base 1 and press precisely. During this process, the horizontal shaft 9 moves down synchronously with the mold sleeve 4. The ridge block 10 at the outer end of the horizontal shaft 9 slides from the circular groove 12 of the first limiting frame 11 into the downward groove 13, restricting the rotation of the mold core 5. The ridge head 23 at the outer end of the locking pin 22 moves down synchronously with the mold sleeve 4 in the limiting groove 25 of the second limiting frame 24, ensuring that the die-casting cavity maintains a stable shape.

[0056] S3. Inject a set amount of molten metal into the complete die-casting cavity formed after mold closing. Under high pressure, the metal fully fills the cavity. After the metal cools and solidifies, the die-casting process of the automotive parts is completed.

[0057] S4. Control the electric sliding block 3 to move upward along the guide rail 2, causing the upper mold sleeve 4 to separate from the lower mold sleeve 4 and reset; the horizontal shaft 9 moves upward with the mold sleeve 4, and the ridge block 10 at the outer end of the horizontal shaft 9 returns from the lower moving groove 13 of the first limiting frame 11 back into the circular groove 12, and the mold core 5 restores its rotational freedom; the ridge head 23 moves upward synchronously with the mold sleeve 4 in the limiting groove 25, and the hook 17 remains connected to the free sliding block 18, waiting for the next die casting cycle.

[0058] S5. If the mold core 5 is intact, it will always remain horizontal and can be directly repeated for the next die casting operation. If the mold core 5 is unbalanced on both sides due to wear, breakage or other problems, it will rotate and tilt around the horizontal axis 9. One side of the tilted mold core 5 will press against the spring-loaded trigger plate 15 in the bottom groove 14 of the mold sleeve 4. The trigger plate 15 will start the motor 16 on the electric control slide 3. The motor 16 will drive the hook 17 to rotate, so that the hook 17 is disconnected from the free slide 18. At this time, the electric control slide 3 cannot pull the free slide 18 down, thus avoiding illegal mold closing operation under fault conditions.

[0059] S6. When the mold core 5 is tilted, the edge 23 at the outer end of the locking pin 22 is restricted from rotating by the limiting groove 25 of the second limiting frame 24. The tilting force of the mold core 5 drives the locking pin 22 to move outward along the inner hole 21, releasing the locking pin 22 from locking the mold core 5. The tilted mold core 5, which is no longer fixed, slides out from the side openings 26 on the left and right sides of the mold sleeve 4 and falls into the corresponding waste core frames 27 on both sides of the base 1.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automotive part die-casting mold characterized by comprising: It includes base (1), the vertical fixed guide rail (2) is established in the top four corners of base (1), the electric control slide (3) is slidably arranged on guide rail (2), the die sleeve (4) is arranged between four electric control slides (3), and the die sleeve (4) is also arranged on the top of base (1), and two die sleeves (4) are oppositely arranged; The die sleeve (4) is provided with a die core (5) for die casting; The die sleeve (4) is provided with a sliding groove (6) on the front and rear sides, and a sliding table (7) is slidably arranged in the sliding groove (6), the bottom of the sliding table (7) is provided with a pressure spring (8), a horizontal shaft (9) is rotatably arranged on the sliding table (7), the horizontal shaft (9) is connected with the die core (5), and the die core (5) is horizontally placed through the horizontal shaft (9).

2. An automotive component die-casting mould according to claim 1, characterised in that: The outer end of the horizontal shaft (9) is provided with a ridge block (10), the first limiting frame (11) is fixedly arranged on the outer side of the die sleeve (4), the first limiting frame (11) is provided with a circular groove (12) for rotating the ridge block (10) and a downward moving groove (13) for limiting the rotation of the ridge block (10).

3. An automotive component die-casting mould according to claim 2, characterised in that: The die sleeve (4) is provided with a recess (14) on the left and right sides of the bottom, and a spring trigger plate (15) is arranged in the recess (14) and is pressed by the inclined die core (5), the electric control slide (3) is fixedly provided with a motor (16) controlled by the trigger plate (15), and a hook (17) is arranged on the rotating shaft of the motor (16). The guide rail (2) is slidably provided with a free slide (18), the free slide (18) is connected with the die sleeve (4) and is provided with a suspension spring (19) between the top end of the guide rail (2) and the die sleeve (4); The motor (16) drives the hook (17) to rotate, so as to realize the connection and disconnection of the free slide (18) and the electric control slide (3).

4. An automotive component die-cast mould according to claim 3, characterised in that: The die core (5) is provided with a horizontal groove (20) on the front and rear sides, and is slidably connected with the horizontal shaft (9) through the horizontal groove (20), the horizontal shaft (9) is provided with a threaded inner hole (21), the lock pin (22) is threadedly connected in the inner hole (21), the lock pin (22) is locked along the horizontal shaft (9) when moving inward, and is unlocked when moving outward; The outer end of the lock pin (22) is provided with a ridge head (23), the second limiting frame (24) is arranged on the outer side of the first limiting frame (11), and the second limiting frame (24) is provided with a limiting groove (25) for moving the ridge head (23) up and down and limiting the rotation of the ridge head (23); The die sleeve (4) is provided with a side opening (26) on the left and right sides for sliding out of the inclined die core (5).

5. An automotive component die-cast mould according to claim 4, characterised in that: The waste core frame (27) corresponding to the side opening (26) is fixedly arranged on the left and right sides of the base (1).

6. An automotive component die-cast mould according to claim 5, characterised in that: The elastic gasket is sleeved on the outer wall of the horizontal shaft (9), and the elastic gasket is located between the sliding table (7) and the die core (5).

7. An automotive component die-cast mould according to claim 6, characterised in that: The inner side wall of the waste core frame (27) is fixedly provided with a buffer rubber pad, and the surface of the buffer rubber pad is arc-shaped.

8. A method of using an automotive part die-casting mold according to claim 7, wherein the automotive part die-casting mold is used. It includes the following steps: S1, the mold core (5) is slid to the slide table (7) horizontal shaft (9) through the front and rear side transverse grooves (20), and rotating the inner thread locking pin (22) in the horizontal shaft (9) makes it move inward along the inner hole (21) to lock the mold core (5); the edge head (23) of the locking pin (22) is embedded into the limiting groove (25) of the second limiting frame (24), the slide table (7) is stabilized by the pressure spring (8), and the mold core (5) is horizontally placed; the edge block (10) of the horizontal shaft (9) is placed in the circular groove (12) of the first limiting frame (11), the electric control sliding seat (3) is hung with the free sliding seat (18), and preparation is completed; S2, the electric control sliding seat (3) is started, slides downward along the guide rail (2) and pulls the free sliding seat (18) downward, drives the upper mold sleeve (4) to be pressed with the lower mold sleeve (4), the horizontal shaft (9) moves downward with the mold sleeve (4), the edge block (10) slides into the downward groove (13) from the circular groove (12) to limit the rotation of the mold core (5), the edge head (23) of the locking pin (22) moves downward synchronously, and the cavity is stabilized; S3, molten metal is injected into the combined mold cavity, cooled and solidified after high-pressure filling, and die casting is completed; S4, the electric control sliding seat (3) is controlled to move upward, drives the mold sleeve (4) to separate and reset; the horizontal shaft (9) moves upward with the mold sleeve (4), the edge block (10) returns to the circular groove (12), the mold core (5) restores the degree of freedom of rotation, the edge head (23) moves upward, and the hook (17) remains connected; S5, if the mold core (5) is intact, the die casting is repeated; if it is unbalanced and inclined, the motor (16) is started by pressing the trigger plate (15), the hook (17) is disconnected from the free sliding seat (18), and the electric control sliding seat (3) cannot pull the mold sleeve (4) downward; S6, when the mold core (5) is inclined, the edge head (23) is limited by the limiting groove (25), the inclined force moves the locking pin (22) outward to be unlocked, and the mold core (5) slides into the waste core frame (27) from the side opening (26).

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