Steering wheel framework die-casting die with air bag installed on hook

By using hook inserts to fix the moving die casting mold with the moving die core, preheating the electric heating wire and cooling bending pipe in the steering wheel skeleton die casting mold, the problem of difficult replacement of the mold due to thermal stress cracking and wear is solved, and efficient preheating of the mold is achieved and Rapid cooling simplifies replacement process and reduces maintenance costs.

CN119237703APending Publication Date: 2025-01-03TIANJIN LIUHE MAGNESIUM PROD
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Patent Information

Application Number
CN202411372445.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-29
Publication Date
2025-01-03

AI Technical Summary

Technical Problem

The existing steering wheel skeleton die-casting molds are prone to cracks due to thermal stress during the production process, and the mold preheating function is missing, making it difficult to replace worn parts, and there is no mechanism to replace inserts separately.

Method used

A steering wheel skeleton die-casting mold with hook-mounted airbags is designed, which is fixed with hook inserts and the moving die core, is equipped with electric heating wire for preheating, cooling bends and fan for double cooling, and the mold is realized by adjusting knobs and electric telescopic rods. disassembly and replace.

Benefits of technology

It effectively avoids the mold cracking due to thermal stress, realizes uniform preheating and rapid cooling of the mold material temperature, simplifies the replacement of hook inserts and adjusts the steering wheel hook height, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a steering wheel framework die-casting die with an air bag installed on a hook, and particularly relates to the technical field of die-casting dies. A fixed die core is embedded in a fixed die frame, guide columns are arranged on the edge of the fixed die frame, and first exhaust plates are arranged on the two sides of the fixed die core; a die casting opening is formed in one side of the middle of the fixed die core, a movable die is arranged on one side of the fixed die frame, a movable die core is embedded in the middle of the movable die, hook inserts are embedded in the bottoms of the two sides of the middle of the movable die core, hanging tables are arranged at the bottoms of the hook inserts, and the bottom ends of the hanging tables abut against the inner wall of the movable die; the hook insert is adopted as a mold at the position of a steering wheel hook, the hanging table and the movable mold core are mutually fixed, and the hook insert can be conveniently taken out and replaced after being seriously abraded; meanwhile, when the height of the steering wheel hook needs to be adjusted, the end corner of the top of the hook insert can be polished through the polishing mechanism, and then the height of the steering wheel hook can be controlled.
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Description

Technical Field

[0001] The present application relates to the technical field of die-casting dies, and more specifically, to a die-casting die for a steering wheel skeleton for hook-mounting an airbag. Background Art

[0002] Die casting is a special casting method with little or no cutting that has developed rapidly in modern metal processing technology. It is a process in which molten magnesium alloy is filled into a mold under high speed and high pressure, and solidified into a casting under high pressure. This production process has the advantages of high production efficiency, simple process, high casting tolerance grade, good surface roughness, and high mechanical strength.

[0003] After searching, the existing patent (publication number: CN109128088A) discloses a new type of steering wheel skeleton die-casting mold, including a fixed mold, a fixed mold frame, a fixed mold core, a positioning hole, a round rod, a positioning block, a gate sleeve, a through hole, a movable mold core and a front core pulling structure; the top surface of the fixed mold frame is provided with a positioning hole; the movable mold frame is provided with a through hole; the fixed mold frame is provided with a round rod, and the round rod is connected with the through hole; the movable mold core is installed in the lower end surface of the movable mold frame; the fixed mold core is installed in the upper end surface of the fixed mold frame. In the steering wheel skeleton die-casting mold of the invention, a front core pulling structure and a rear core pulling structure are installed between the movable mold frame and the fixed mold frame, and the front core pulling structure is installed at the front end position of the movable mold frame, and the rear core pulling structure is installed at the rear end position of the lower mold frame of the fixed mold frame, so as to ensure that the steering wheel skeleton can be smoothly demolded from the steering wheel, reduce the sticking phenomenon of the die casting, and effectively improve the shift production. In the process of realizing this application, the inventor found that the prior art has the following problems:

[0004] The existing steering wheel skeleton die-casting mold is prone to cracking during the production process due to factors such as thermal stress and insufficient heat treatment. It does not have a preheating function. When the mold is worn and needs to be replaced, it often requires the use of tools to disassemble and replace the mold core. At the same time, it does not have a separate replacement mechanism for the inserts that are prone to wear;

[0005] Therefore, in view of the above problems, a die-casting mold for a steering wheel skeleton for hooking and installing an air bag is proposed. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present application provides a die-casting mold for a steering wheel skeleton for hook-mounting an airbag to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a die-casting mold for a steering wheel skeleton for mounting an airbag by hook, comprising a fixed mold frame, a fixed mold core is embedded in the fixed mold frame, guide pillars are arranged at the edge of the fixed mold frame, a No. 1 exhaust plate is arranged on both sides of the fixed mold core, a die-casting port is arranged on one side of the middle part of the fixed mold core, a movable mold is arranged on one side of the fixed mold frame, a movable mold core is embedded in the middle part of the movable mold, the fixed mold core matches the movable mold core, hook inserts are embedded at the bottom of both sides of the middle part of the movable mold core, a hanging platform is arranged at the bottom of the hook insert, and the bottom end of the hanging platform abuts against the inner wall of the movable mold;

[0008] Among them, the outer walls of one side of the fixed mold frame and the movable mold are both provided with a cooling pipe water inlet, and a cooling pipe water outlet is provided on one side of the cooling pipe water inlet. The fixed mold frame and the movable mold are both provided with a cooling cavity inside, and the inner wall of the cooling cavity is connected with a heat conduction plate, and a cooling elbow is provided on one side of the heat conduction plate. The outer wall of the cooling elbow is in contact with the heat conduction plate, and the two ends of the cooling elbow are respectively connected with the cooling pipe water inlet and the cooling pipe water outlet.

[0009] Preferably, exhaust plates No. 2 are provided on both sides of the movable mold core, the exhaust plate No. 1 matches the exhaust plate No. 2, electric heating wires are arranged on one side of the cooling elbow, a temperature sensor is provided on one side of the heat conduction plate, and controllers are provided on one side of the fixed mold frame and the movable mold, and the controller is connected to the temperature sensor and the electric heating wire through electric wires.

[0010] Preferably, both outer walls of the fixed mold core and the movable mold core are provided with card slots, both inner walls of the fixed mold frame and the movable mold are provided with movable cavities, movable plates are provided inside the movable cavities, and two groups of movable plates are arranged and connected on opposite sides with card blocks, one end of the card block away from the movable plate passes through the movable cavity and is embedded in the card slot, and the top of one side of the card block is inclined.

[0011] Preferably, a spring is arranged on a side of the movable plate away from the clamping block, and one end of the spring away from the movable plate abuts against the inner wall of the movable cavity.

[0012] Preferably, a guide rod is connected to the center of the side of the movable plate away from the block by bolts, a rack is connected to the bottom side of the guide rod, a rotating shaft is arranged below the guide rod, and the rotating shaft is connected to the movable cavity by a bearing.

[0013] Preferably, a gear is keyed to the middle outer wall of the rotating shaft, the gear is meshed with a rack, and adjustment knobs are provided at both ends of one side of the fixed mold frame and the movable mold, and the output adjustment end of the adjustment knob is connected to the rotating shaft.

[0014] Preferably, the fixed mold frame and the movable mold are each provided with an air duct in the middle of the inner wall, the fixed mold frame and one side of the outer wall of the movable mold are each provided with an air inlet hole, the fixed mold frame and the movable mold are each provided with an exhaust hole on a side away from the air inlet hole, the air inlet hole and the exhaust hole are both connected with the air duct, and a fan is provided on one side of the two groups of air inlet holes.

[0015] Preferably, the movable mold is connected to a fixing frame via bolts on one side away from the fixed mold frame, a push rod is embedded in the middle of the movable mold core, an end block is provided on the top of the push rod, and the end block is tightly sealed to the surface of the movable mold core.

[0016] Preferably, electric telescopic rods are arranged in the middle of the fixing frame, and output ends of multiple groups of the electric telescopic rods pass through the movable mold and are connected to ejector rods at corresponding positions.

[0017] Technical effects and advantages of this application:

[0018] 1. Compared with the prior art, the die-casting mold for the steering wheel skeleton for mounting the airbag with a hook adopts a hook insert as the mold for the steering wheel hook, which is fixed to the movable mold core through a hanging platform. When the hook insert is severely worn, it can be easily taken out and replaced. At the same time, when the height of the steering wheel hook needs to be adjusted, the height of the steering wheel hook can be controlled by grinding the end angle of the top of the hook insert through a grinding mechanism.

[0019] 2. Compared with the prior art, the steering wheel skeleton die-casting mold for hook-mounted airbag controls the electric heating wire to be energized and heated by the controller before die-casting, thereby preheating the fixed mold core and the movable mold core. Preheating can ensure that the temperature distribution of the mold material is more uniform, thereby reducing thermal shock and thermal stress, and avoiding cracking of the fixed mold core and the movable mold core due to excessive temperature difference during die-casting.

[0020] 3. Compared with the prior art, the die-cast mold for the steering wheel skeleton for installing the airbag with a hook can drive the rotating shaft to rotate by twisting the adjusting knob, and the rotation of the rotating shaft drives the gear to rotate, and the rotation of the gear can drive the rack to translate, thereby driving the guide rod to translate outward, and the movement of the guide rod can pull the movable plate and the block to translate, so that the block moves out of the slot, so as to facilitate the disassembly and replacement of the movable mold core and the fixed mold core. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this application;

[0022] Figure 2 This is a schematic diagram of the fixed mold frame and the movable mold structure of this application;

[0023] Figure 3 This is a schematic diagram of the internal structure of the active chamber of the present application;

[0024] Figure 4 This is a schematic diagram of the fixed mold frame structure of this application;

[0025] Figure 5 This is a schematic diagram of the connection structure between the card block and the card slot of the present application;

[0026] Figure 6 This is a schematic diagram of the dynamic mold structure of this application;

[0027] Figure 7 This is a schematic diagram of the cooling elbow structure of this application.

[0028] The accompanying drawings are marked as follows: 1. fixed mold frame; 2. fixed mold core; 3. guide column; 4. exhaust plate No. 1; 5. die casting port; 6. cooling pipe water inlet; 7. cooling pipe water outlet; 8. movable mold; 9. movable mold core; 10. hook insert; 11. hanging table; 12. exhaust plate No. 2; 13. cooling chamber; 131. heat conduction plate; 14. cooling elbow; 15. electric heating wire; 16. temperature sensor; 17. controller; 18. slot; 19. movable chamber; 20. movable plate; 21. block; 22. spring; 23. guide rod; 24. rack; 25. rotating shaft; 26. gear; 27. adjusting knob; 28. air duct; 29. ​​air inlet; 30. exhaust hole; 31. fan; 32. fixing frame; 33. ejector rod; 34. end block; 35. electric telescopic rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] Example 1

[0031] As attached Figures 1 to 6A die-casting mold for a steering wheel skeleton for mounting an airbag with a hook is shown, comprising a fixed mold frame 1, a fixed mold core 2 is embedded in the fixed mold frame 1, guide pillars 3 are arranged at the edge of the fixed mold frame 1, a No. 1 exhaust plate 4 is arranged on both sides of the fixed mold core 2, a die-casting port 5 is arranged on one side of the middle of the fixed mold core 2, a movable mold 8 is arranged on one side of the fixed mold frame 1, a movable mold core 9 is embedded in the middle of the movable mold 8, the fixed mold core 2 matches the movable mold core 9, hook inserts 10 are embedded at the bottom of both sides of the middle of the movable mold core 9, and a hanging platform 11 is arranged at the bottom of the hook insert 10, The bottom end of the hanging platform 11 is in contact with the inner wall of the moving mold 8, and the fixed mold frame 1 cooperates with the moving mold 8 to perform die-casting on the steering wheel skeleton for installing the airbag on the hook. The hook insert 10 is the mold for the steering wheel hook, and is fixed to the moving mold core by the hanging platform 11. When the hook insert 10 is seriously worn, it can be easily taken out and replaced. At the same time, when the height of the steering wheel hook needs to be adjusted, the end angle of the top of the hook insert 10 can be polished by the polishing mechanism to control the height of the steering wheel hook. The insert can also be replaced when the mold is eroded and aged, thereby reducing the mold maintenance cost;

[0032] Among them, a cooling pipe water inlet 6 is provided on the outer wall of one side of the fixed mold frame 1 and the movable mold 8, and a cooling pipe water outlet 7 is provided on one side of the cooling pipe water inlet 6. A cooling cavity 13 is provided inside the fixed mold frame 1 and the movable mold 8. The inner wall of the cooling cavity 13 is connected with a heat conducting plate 131, and a cooling elbow 14 is provided on one side of the heat conducting plate 131. The outer wall of the cooling elbow 14 abuts against the heat conducting plate 131, and the two ends of the cooling elbow 14 are respectively connected with the cooling pipe water inlet 6 and the cooling pipe water outlet 7. The heat in the die-casting mold can be conducted and absorbed through the heat conducting plate 131, and the external cooling water pipe can be connected with the cooling pipe water inlet 6 and the cooling pipe water outlet 7, so that the cooling water is introduced into the cooling elbow 14 through the cooling water inlet 6 and then discharged through the cooling water outlet 7 to realize the cooling cycle, so as to cool down the steering wheel skeleton for rapid shaping.

[0033] Example 2

[0034] Based on Example 1, the solution in Example 1 is further detailed in combination with the following specific working method. Figures 1 to 7 As shown, see the following description for details:

[0035] As a preferred embodiment, a No. 2 exhaust plate 12 is provided on both sides of the movable mold core 9, the No. 1 exhaust plate 4 is matched with the No. 2 exhaust plate 12, an electric heating wire 15 is arranged on one side of the cooling elbow 14, a temperature sensor 16 is provided on one side of the heat conducting plate 131, and a controller 17 is provided on one side of the fixed mold frame 1 and the movable mold 8, and the controller 17 is connected to the temperature sensor 16 and the electric heating wire 15 through electric wires; further, the temperature of the mold can be monitored by the temperature sensor 16, and the electric heating wire 15 is controlled by the controller 17 to be energized and heated before die-casting, so as to preheat the fixed mold core 2 and the movable mold core 9. Preheating can ensure that the temperature distribution of the mold material is more uniform, thereby reducing thermal shock and thermal stress, and avoiding cracking of the fixed mold core 2 and the movable mold core 9 due to excessive temperature difference during die-casting.

[0036] As a preferred embodiment, both outer walls of the fixed mold core 2 and the movable mold core 9 are provided with card grooves 18, both inner walls of the fixed mold frame 1 and the movable mold 8 are provided with movable cavities 19, and movable plates 20 are provided inside the movable cavities 19. The two sets of movable plates 20 are arranged and connected with card blocks 21 on opposite sides, and one end of the card block 21 away from the movable plate 20 passes through the movable cavity 19 and is embedded in the card groove 18, and the top of one side of the card block 21 is inclined; further, the fixed mold core 2 and the movable mold core 9 are fixed and limited by embedding the card block 21 in the card groove 18.

[0037] As a preferred embodiment, a spring 22 is arranged on one side of the movable plate 20 away from the block 21, and one end of the spring 22 away from the movable plate 20 abuts against the inner wall of the movable cavity 19; further, the spring 22 shrinks and rebounds under pressure, and the spring 22 can provide a certain rebound support force to the movable plate 20 so that the block 21 is always embedded in the slot 18.

[0038] As a preferred embodiment, the movable plate 20 is connected to a guide rod 23 by bolts at the center of one side away from the block 21, and a rack 24 is connected to the bottom side of the guide rod 23. A rotating shaft 25 is arranged below the guide rod 23, and the rotating shaft 25 is connected to the movable cavity 19 by a bearing; further, the movement of the guide rod 23 can pull the movable plate 20 and the block 21 to perform translational movement, and the rack 24 and the guide rod 23 move synchronously, so that the rotating shaft 25 can rotate in the movable cavity 19, and the rotation of the rotating shaft 25 drives the gear 26 to rotate.

[0039] As a preferred embodiment, the middle outer wall key of the rotating shaft 25 is connected with a gear 26, the gear 26 is meshed with the rack 24, and adjustment knobs 27 are provided at both ends of one side of the fixed mold frame 1 and the movable mold 8, and the output adjustment end of the adjustment knob 27 is connected to the rotating shaft 25; further, the rotating shaft 25 can be driven to rotate by twisting the adjustment knob 27, and the rotation of the rotating shaft 25 drives the gear 26 to rotate, and the rotation of the gear 26 can drive the rack 24 to perform translational movement, thereby driving the guide rod 23 to translate outward, and the movement of the guide rod 23 can pull the movable plate 20 and the block 21 to perform translational movement, so that the block 21 moves out of the slot 18, so as to facilitate the disassembly and replacement of the movable mold core 9 and the fixed mold core 2.

[0040] As a preferred embodiment, air ducts 28 are provided in the middle of the inner walls of the fixed mold frame 1 and the movable mold 8, air inlet holes 29 are provided on one side of the outer walls of the fixed mold frame 1 and the movable mold 8, exhaust holes 30 are provided on the side of the fixed mold frame 1 and the movable mold 8 away from the air inlet holes 29, the air inlet holes 29 and the exhaust holes 30 are both connected to the air ducts 28, and fans 31 are provided on one side of the two groups of air inlet holes 29; further, the two groups of air ducts 28 are in contact with the outer walls of the fixed mold core 2 and the movable mold core 9, and the air can be accelerated from the air inlet holes 29 to the air ducts 28 through the fans 31, and the high-speed air flows out of the air ducts 28 to the exhaust holes 31 and then is discharged, and the heat of the fixed mold core 2 and the movable mold core 9 can be taken away by the air, thereby achieving the effect of cooling, and the fixed mold core 2 and the movable mold core 9 are double cooled in cooperation with the cooling elbow 14 to facilitate rapid cooling and shaping of the steering wheel skeleton.

[0041] As a preferred embodiment, the movable mold 8 is connected to a fixing frame 32 by bolts on one side away from the fixed mold frame 1, and a push rod 33 is embedded in the middle of the movable mold core 9. An end block 34 is provided on the top of the push rod 33, and the end block 34 is tightly sealed to the surface of the movable mold core 9; further, the fixing frame 32 plays a fixing role, and the push rod 33 and the end block 34 can push the molded steering wheel skeleton to the outside to facilitate demolding of the steering wheel skeleton.

[0042] As a preferred embodiment, electric telescopic rods 35 are arranged in the middle of the fixed frame 32, and the output ends of multiple groups of electric telescopic rods 35 pass through the movable mold 8 and are connected to the ejector rods 33 at corresponding positions; further, the electric telescopic rods 35 can push the ejector rods 33 to perform lifting movements, thereby driving the ejector rods 33 and the end blocks 34 to push the molded steering wheel skeleton to the outside, so as to facilitate demolding of the steering wheel skeleton.

[0043] The working process of the present application is as follows: first, the fixed mold frame 1 and the movable mold 8 are installed on the die-casting mechanism by bolts, and the fixed mold frame 1 and the movable mold 8 are combined and sealed by the die-casting mechanism, and the metal liquid is input into the die-casting port 4 for extrusion, and the fixed mold frame 1 and the movable mold 8 are matched to die-cast the steering wheel skeleton for the hook installation airbag. Before die-casting, the controller 17 controls the electric heating wire 15 to be energized and heated, so as to preheat the fixed mold core 2 and the movable mold core 9. Preheating can ensure that the temperature distribution of the mold material is more uniform, thereby reducing thermal shock and heat. Stress is prevented to prevent the fixed mold core 2 and the movable mold core 9 from cracking due to excessive temperature difference during die casting. The movable mold core is fixed to each other through the hanging platform 11. When the hook insert 10 is seriously worn, it can be easily taken out and replaced. At the same time, when the height of the steering wheel hook needs to be adjusted, the end angle of the top of the hook insert 10 can be polished by the polishing mechanism to control the height of the steering wheel hook. The heat in the die casting mold can be conducted and absorbed through the heat conducting plate 131. The external cooling water pipe can be connected with the cooling pipe water inlet 6 and the cooling pipe water outlet 7, so that the cooling water can be introduced into the cooling water through the cooling water inlet 6. The air in the cooling elbow 14 is discharged through the cooling outlet 7 to achieve a cooling cycle, so as to cool down the steering wheel skeleton for rapid shaping. The air can be accelerated from the air inlet 29 to the air duct 28 through the fan 31. The high-speed air flows out of the air duct 28 to the exhaust hole 31 and then is discharged. The heat of the fixed mold core 2 and the movable mold core 9 can be taken away by the air, so as to achieve the effect of cooling. The cooling elbow 14 is used to perform double cooling on the fixed mold core 2 and the movable mold core 9 to facilitate rapid cooling and shaping of the steering wheel skeleton. The electric telescopic rod 35 can push the ejector rod 33 to The lifting movement drives the ejector rod 33 and the end block 34 to push the molded steering wheel skeleton to the outside, so as to facilitate the demolding of the steering wheel skeleton. The rotating shaft 25 can be driven to rotate by twisting the adjusting knob 27. The rotation of the rotating shaft 25 drives the gear 26 to rotate. The rotation of the gear 26 can drive the rack 24 to perform a translational movement, thereby driving the guide rod 23 to translate outward. The movement of the guide rod 23 can pull the movable plate 20 and the block 21 to perform a translational movement, so that the block 21 moves out of the slot 18, so as to facilitate the disassembly and replacement of the movable mold core 9 and the fixed mold core 2.

[0044] Finally: The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A die-casting mold for a steering wheel frame for hook-mounting an airbag, comprising a fixed mold frame (1), characterized in that: A fixed mold core (2) is embedded inside the fixed mold frame (1), guide pillars (3) are arranged at the edge of the fixed mold frame (1), a No. 1 exhaust plate (4) is arranged on both sides of the fixed mold core (2), a die casting port (5) is arranged on one side of the middle of the fixed mold core (2), a movable mold (8) is arranged on one side of the fixed mold frame (1), a movable mold core (9) is embedded in the middle of the movable mold (8), the fixed mold core (2) matches the movable mold core (9), hook inserts (10) are embedded at the bottom of both sides of the middle of the movable mold core (9), a hanging platform (11) is arranged at the bottom of the hook insert (10), and the bottom end of the hanging platform (11) is in contact with the inner wall of the movable mold (8); The outer walls of one side of the fixed mold frame (1) and the movable mold (8) are both provided with a cooling pipe water inlet (6), one side of the cooling pipe water inlet (6) is provided with a cooling pipe water outlet (7), the interior of the fixed mold frame (1) and the movable mold (8) are both provided with a cooling cavity (13), the inner wall of the cooling cavity (13) is connected with a heat conduction plate (131), one side of the heat conduction plate (131) is provided with a cooling elbow (14), the outer wall of the cooling elbow (14) is in contact with the heat conduction plate (131), and the two ends of the cooling elbow (14) are respectively connected with the cooling pipe water inlet (6) and the cooling pipe water outlet (7).

2. A die-casting mold for a steering wheel frame for hook-mounted airbag according to claim 1, characterized in that: A No. 2 exhaust plate (12) is provided on both sides of the movable mold core (9), the No. 1 exhaust plate (4) matches the No. 2 exhaust plate (12), an electric heating wire (15) is arranged on one side of the cooling elbow (14), a temperature sensor (16) is provided on one side of the heat conducting plate (131), a controller (17) is provided on one side of the fixed mold frame (1) and the movable mold (8), and the controller (17) is connected to the temperature sensor (16) and the electric heating wire (15) through electric wires.

3. The die-casting mold for a steering wheel frame for hook-mounted airbag according to claim 2, characterized in that: The outer walls of both sides of the fixed mold core (2) and the movable mold core (9) are provided with card slots (18), and the inner walls of the fixed mold frame (1) and the movable mold (8) are provided with movable cavities (19) on both sides. A movable plate (20) is provided inside the movable cavity (19), and two groups of movable plates (20) are arranged on opposite sides thereof and connected with card blocks (21). One end of the card block (21) away from the movable plate (20) passes through the movable cavity (19) and is embedded in the card slot (18), and the top of one side of the card block (21) is inclined.

4. The die-casting mold for a steering wheel frame for hook-mounted airbag according to claim 3, characterized in that: A spring (22) is arranged on one side of the movable plate (20) away from the clamping block (21), and one end of the spring (22) away from the movable plate (20) abuts against the inner wall of the movable cavity (19).

5. The die-casting mold for a steering wheel frame for hook-mounted airbag according to claim 4, characterized in that: A guide rod (23) is connected to the center of one side of the movable plate (20) away from the clamping block (21) via bolts, a rack (24) is connected to the bottom side of the guide rod (23), a rotating shaft (25) is arranged below the guide rod (23), and the rotating shaft (25) is connected to the movable chamber (19) via a bearing.

6. A die-casting mold for a steering wheel frame for hook-mounted airbag according to claim 5, characterized in that: The middle outer wall key of the rotating shaft (25) is connected to a gear (26), and the gear (26) is meshed with the rack (24). Adjustment knobs (27) are provided at both ends of one side of the fixed mold frame (1) and the movable mold (8), and the output adjustment end of the adjustment knob (27) is connected to the rotating shaft (25).

7. The die-casting mold for a steering wheel frame for hook-mounted airbag according to claim 6, characterized in that: The middle part of the inner wall of the fixed mold frame (1) and the movable mold (8) is provided with an air duct (28), the outer wall of one side of the fixed mold frame (1) and the movable mold (8) is provided with an air inlet hole (29), and the side of the fixed mold frame (1) and the movable mold (8) away from the air inlet hole (29) is provided with an exhaust hole (30), the air inlet hole (29) and the exhaust hole (30) are both connected to the air duct (28), and a fan (31) is provided on one side of the two groups of air inlet holes (29).

8. The die-casting mold for a steering wheel frame for hook-mounted airbag according to claim 7, characterized in that: The side of the movable mold (8) away from the fixed mold frame (1) is connected to a fixing frame (32) by bolts, and a push rod (33) is arranged in the middle of the movable mold core (9), and an end block (34) is arranged on the top of the push rod (33), and the end block (34) is tightly sealed with the surface of the movable mold core (9).

9. The die-casting mold for a steering wheel frame for hook-mounted airbag according to claim 8, characterized in that: Electric telescopic rods (35) are arranged in the middle of the fixed frame (32), and the output ends of multiple groups of the electric telescopic rods (35) pass through the movable mold (8) and are connected to the ejector rods (33) at corresponding positions.