An automobile safety airbag mold

Abstract

The utility model discloses an automobile safety air bag mould, including movable mould bottom plate, movable mould mould kernel, water connector, movable mould bottom plate top is connected with movable mould plate, and movable mould plate top is equipped with fixed mould plate and is connected with fixed mould bottom plate in fixed mould plate top, movable mould mould kernel is equipped with a plurality of water collecting blocks, and water collecting block is equipped with U type pipe, and the both ends of U type pipe are connected with water inlet pipe and water outlet pipe respectively, and water connector is equipped with a plurality of groups and is connected in one end of water inlet pipe and water outlet pipe respectively, and the cooling structure that mould is innovative in movable mould mould kernel adopts U type pipe, water inlet pipe, water outlet pipe and water collecting block cooperation, and the flowing path of cooling liquid is greatly shortened, makes cooling liquid to reach the core heating area of cavity quickly, and U type pipe adopts the design of closely adhering mould kernel inner wall, and the directness and efficiency of heat exchange are maximized to increase, and the shrinkage deformation, surface shrinkage mark and other defects of plastic part caused by local temperature difference are effectively reduced, and the forming quality of product is significantly improved.

Description

Technical Field

[0001] This utility model belongs to the field of airbag mold technology, specifically relating to an automotive airbag mold. Background Technology

[0002] As a core component of a vehicle's passive safety system, the molding quality of automotive airbags directly affects the protection of occupants in the event of a collision. The airbag mold is a crucial piece of equipment determining the molding quality, dimensional accuracy, and production efficiency of airbags. During the injection molding process of airbags, the precision of mold temperature control is paramount. A reasonable temperature field distribution can effectively reduce shrinkage and deformation of the plastic part, eliminate surface defects, shorten the molding cycle, and improve production efficiency. The cooling system, as a core component of mold temperature control, directly impacts cooling efficiency and temperature control effectiveness through its structural design, thus becoming a key focus in the design and optimization of automotive airbag molds.

[0003] Existing automotive airbag molds typically employ a cooling structure design with multiple cooling rods and water collection blocks to achieve comprehensive cooling of the mold cavity. The core design concept of this type of cooling system is to receive externally supplied cooling water through the water collection blocks, which then distribute the cooling water to various cooling branches. Finally, the cooling rods in these branches exchange heat with the mold cavity to cool the mold. However, in practical applications, this cooling structure has significant design flaws that hinder further improvements in cooling efficiency. Specifically, in existing cooling structures, after being diverted from the water collection blocks, the cooling water is guided to the bottom of vertically arranged cooling rods. Subsequently, the cooling water flows upwards from the bottom of the cooling rods, interacting with the cooling water during its flow. The cooling rods exchange heat, but this water flow path design significantly increases the overall flow distance of the cooling water. On the one hand, the excessively long flow distance means that the cooling water absorbs some heat before reaching the core cooling area, resulting in a smaller temperature difference between the cooling water and the mold cavity, reducing heat exchange efficiency. This, in turn, affects the cooling speed and temperature uniformity of the mold, easily causing quality problems such as uneven local shrinkage and surface defects in the airbag plastic parts. On the other hand, the extended flow distance inevitably leads to increased water flow resistance. To ensure cooling flow, the cooling water delivery pressure needs to be increased, which not only increases power consumption but may also cause insufficient water flow velocity in some cooling rods due to uneven pressure distribution, further exacerbating the differences in cooling effect and thus reducing practicality. Utility Model Content

[0004] The purpose of this invention is to provide an automotive airbag mold to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automotive airbag mold, comprising: A movable mold base plate, the top of which is connected to a movable template, and the top of the movable template is provided with a fixed template, the top of which is connected to a fixed mold base plate; The moving mold core is located inside the moving template and is used to cooperate with the corresponding fixed mold core inside the fixed template to form the molding cavity of the airbag product. The moving mold core is provided with several water collection blocks, and the water collection blocks are provided with U-shaped tubes. The two ends of the U-shaped tubes are respectively connected to water inlet pipes and water outlet pipes. When the coolant enters the U-shaped tube through the water inlet pipe, the water collection blocks, with the cooperation of the U-shaped tube, uniformly cool the moving mold core. The coolant that has absorbed heat is then discharged through the water outlet pipe, thereby realizing the cooling during the airbag molding process. A water connector, wherein the water connector is provided in several sets and is respectively connected to one end of the inlet pipe and the outlet pipe.

[0006] Preferably, both the moving mold plate and the fixed mold plate are connected to water distribution blocks. The water distribution blocks are connected to cooling water connectors and return water connectors. One side of the water distribution block is connected to a cooling water pipe, and the other end of the cooling water pipe is connected to a water connector on the inlet pipe. The other side of the water distribution block is connected to a return water pipe, and the other end of the return water pipe is connected to a water connector on the outlet pipe. A cooling circulation loop on the moving mold side is constructed through the water distribution blocks and related pipelines, realizing the centralized distribution and convergence of the cooling medium and ensuring stable cooling efficiency on the moving mold side.

[0007] Preferably, the fixed mold core is provided with several cooling pipes, and each end of the cooling pipe is connected to a water connector. The other end of the two sets of water connectors is connected to the water distribution block through a hose. By adding an independent cooling pipe and circuit to the fixed mold core, uniform cooling of the fixed mold side can be achieved, and it can be adjusted separately from the moving mold side, thereby improving the accuracy of cavity temperature control.

[0008] Preferably, the moving mold core is provided with two sets of flow channels and flow channel regulating valves. The moving mold core is also provided with several straight ejectors and angled ejectors. The flow channels and regulating valves ensure that the raw material fills the cavity evenly. At the same time, the straight ejectors and angled ejectors work together to achieve smooth demolding of different areas of the product.

[0009] Preferably, a spring is provided inside the moving template, and several sliding rods are connected inside the moving template, with several ejector plates slidably mounted on the sliding rods. Two sets of air connectors are provided inside the moving template and at the bottom of one set of ejector plates. An ejection and retraction limit switch is provided on one side of the air connector. The spring, sliding rods and ejector plates ensure stable operation of the ejection mechanism. The air connectors control the action of the hot runner valve needle, and the limit switch prevents excessive ejection or incomplete retraction.

[0010] Preferably, a system control terminal box is connected to one side of the moving template. Both the moving template and the fixed template are equipped with a mold closing distance sensing sensor and a thermometer on their tops. The control terminal box enables centralized control and signal transmission. The sensors and thermometers are used to monitor the mold closing accuracy and mold core temperature in real time, providing data support for mold operation control.

[0011] Preferably, the top of the moving mold is connected to several pressure plates and guide pillars. The pressure plates disperse the mold closing pressure to prevent the mold from deforming, and the guide pillars ensure the guiding and positioning accuracy when the moving and fixed molds are closed.

[0012] Preferably, the outer surface of the fixed mold core is provided with a plurality of clamping blocks, the top of the fixed mold plate is provided with a plurality of guide sleeves and guide posts are inserted into the guide sleeves, and the surface of the fixed mold plate is also provided with a locking module and a hot runner system junction box. The clamping blocks enhance the stability of the fixed mold core, the guide sleeves cooperate with the guide posts to improve the mold closing accuracy, the locking module ensures that the mold is firmly locked after closing, and the junction box ensures the stable operation of the hot runner system.

[0013] Preferably, the diameter of the inlet pipe and the outlet pipe is 10mm. Increasing the pipe diameter ensures the flow rate of coolant while reducing pipe resistance, thereby achieving a balance between cooling efficiency and energy consumption.

[0014] Compared with the prior art, the beneficial effects of this utility model are: (1) The mold innovatively adopts a cooling structure in the moving mold core with U-shaped tubes, water inlet pipes, water outlet pipes and water collection blocks, which greatly shortens the flow path of the coolant and enables the coolant to quickly reach the core heating area of ​​the cavity. The U-shaped tubes are designed to fit tightly against the inner wall of the mold core, which maximizes the heat exchange area and improves the directness and efficiency of heat exchange. At the same time, the water collection blocks can evenly distribute the coolant to each group of U-shaped tubes to avoid local insufficient cooling. Combined with the independently designed cooling pipe circuit in the fixed mold core, the temperature of the moving mold and the fixed mold can be adjusted synchronously to ensure that the temperature distribution of the entire cavity is uniform. This effectively reduces defects such as shrinkage deformation, surface shrinkage marks and internal stress concentration caused by local temperature differences in the plastic parts, and significantly improves the molding quality of the product.

[0015] (2) The diameter of the inlet and outlet pipes is increased to 10mm, which effectively increases the flow rate of the coolant and further enhances the heat exchange efficiency. The short-path design of the inlet and outlet pipes also reduces the resistance of the water flow in the pipes. There is no need to increase the delivery pressure to ensure the cooling effect, thereby reducing the power consumption of the cooling system.

[0016] (3) In terms of the connection structure of the cooling water pipe, the traditional O-ring sealing method is abandoned and the water connector is directly connected, which effectively reduces the risk of water leakage caused by seal failure. When the water connector is damaged, the standard part or spare part can be directly replaced without disassembling the overall structure like traditional molds. Even if the mold is not completely disassembled, the replacement operation can be completed, which greatly shortens the time to solve the water leakage problem and significantly improves the convenience and efficiency of mold maintenance. Attached Figure Description

[0017] Figure 1 This is a first-view structural schematic diagram of the present invention; Figure 2 This is a structural schematic diagram of the present invention from a second perspective; Figure 3 This is a top view of the moving template of this utility model; Figure 4 This is a schematic diagram of the internal structure of the moving template of this utility model; Figure 5 This is a top view of the template for this utility model; Figure 6 This is a schematic diagram of the structure of the U-shaped pipe, inlet pipe, and outlet pipe of this utility model.

[0018] In the diagram: 1. Moving mold base plate; 2. Moving mold plate; 3. Fixed mold plate; 4. Fixed mold base plate; 5. Moving mold core; 6. Fixed mold core; 7. Water collection block; 8. U-shaped tube; 9. Water inlet pipe; 10. Water outlet pipe; 11. Water connector; 12. Water distribution block; 13. Cooling water connector; 14. Return water connector; 15. Cooling water pipe; 16. Return water pipe; 17. Cooling pipe; 18. Runner; 19. Runner regulating valve; 20. Straight ejector; 21. Angled ejector; 22. Ejector plate; 23. Air connector; 24. Ejection / retraction limit switch; 25. System control terminal box; 26. Mold closing distance sensor; 27. Thermometer; 28. Pressure plate; 29. ​​Guide post; 30. Spring; 31. Clamping block; 32. Guide sleeve; 33. Locking module; 34. Hot runner system junction box. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved with", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] This utility model provides, for example Figure 1-6 The illustrated car airbag mold includes: The moving mold base plate 1 serves as the core support component for the moving mold side. The top of the moving mold base plate 1 is fastened to the moving template 2 by bolts, providing a stable installation foundation for the moving template 2. The top of the moving template 2 is correspondingly fitted with a fixed template 3, and the top of the fixed template 3 is fixedly connected to a fixed mold base plate 4. The fixed mold base plate 4 is fixedly fitted with the injection molding machine frame to achieve stable positioning of the fixed mold side. The moving mold core 5 is embedded in the mold core mounting cavity of the moving template 2, and is used to precisely fit with the corresponding fixed mold core 6 embedded in the fixed template 3 to form the molding cavity of the airbag product, ensuring the accuracy of the product molding contour. Several water collecting blocks 7 are evenly distributed along the contour of the cavity inside the moving mold core 5. Each water collecting block 7 integrates a diversion channel, and a U-shaped tube 8 is correspondingly embedded in each water collecting block 7. The U-shaped tube 8 is embedded in the cavity wall to increase heat exchange. The area is such that the two ends of the U-shaped tube 8 are respectively sealed and connected to the inlet pipe 9 and the outlet pipe 10 to form an independent cooling branch; when the coolant enters the U-shaped tube 8 through the inlet pipe 9, the water collection block 7 distributes the coolant evenly to each U-shaped tube 8 through the internal diversion channel. Under the close fit between the U-shaped tube 8 and the moving mold core 5, the moving mold core 5 is cooled evenly and efficiently. The coolant after absorbing the heat of the cavity is collected and discharged through the outlet pipe 10 to ensure the temperature control requirements during the airbag molding process. Water connector 11, which is provided in several sets and is respectively sealed to the ends of water inlet pipe 9 and water outlet pipe 10, is used to realize the quick connection and sealing of cooling pipes, prevent coolant leakage and improve the convenience of pipe maintenance.

[0022] Both the moving mold plate 2 and the fixed mold plate 3 have water distribution blocks 12 fixedly connected to their outer surfaces. The water distribution blocks 12 serve as centralized distribution and confluence components for the cooling medium. Cooling water connectors 13 and return water connectors 14 are respectively sealed and connected to them. Cooling water connectors 13 are used to connect to an external cooling source, and return water connectors 14 are used to discharge the coolant after heat exchange. One side of the water distribution block 12 is sealed and connected to the water connector 11 on the inlet pipe 9 through the cooling water pipe 15, so as to realize the delivery of the cooling medium to the moving mold core 5. The other side of the water distribution block 12 is sealed and connected to the water connector 11 on the outlet pipe 10 through the return water pipe 16, forming a cooling medium circulation loop on the moving mold side to ensure the stability of cooling efficiency.

[0023] The fixed mold core 6 is provided with several cooling pipes 17 that are adapted to the cavity contour. The arrangement trajectory of the cooling pipes 17 is precisely matched with the heat-generating area of ​​the fixed mold core 5 to achieve uniform cooling on the fixed mold side. Both ends of the cooling pipes 17 are respectively sealed and connected to water connectors 11. The other ends of the two sets of water connectors 11 are respectively sealed and connected to the water distribution block 12 through flexible hoses to form a fixed mold cooling circulation loop independent of the moving mold side. It can be adjusted according to the temperature requirements of the moving and fixed molds to further improve the temperature control accuracy of the cavity.

[0024] The moving mold core 5 is equipped with two sets of flow channels 18 corresponding to the cavity feeding requirements. The inlet end of the flow channel 18 is connected to the hot runner system to realize the diversion and transportation of molten raw materials. The flow channel 18 is equipped with a flow channel regulating valve 19. The flow channel regulating valve 19 adjusts the cross-sectional area of ​​the flow channel by adjusting the valve core opening to realize the precise control of the raw material flow rate and pressure in the two sets of flow channels 18, ensuring the uniform filling of the cavity. The moving mold core 5 is also equipped with several straight ejectors 20 and angled ejectors 21 adapted to the cavity structure. The straight ejectors 20 are used for ejection of the product in the planar area, and the angled ejectors 21 are used for demolding of the product in the undercut or complex curved area, together ensuring the integrity and safety of the product demolding process.

[0025] A spring 30 is installed inside the moving template 2 to meet the reset requirements of the ejection mechanism. The spring 30 is installed in a pre-compressed state to provide elastic driving force for the reset of the ejection mechanism. Several parallel sliding rods are fixedly connected inside the moving template 2. Several ejector plates 22 are slidably mounted on the sliding rods. The sliding rods provide guidance and positioning for the reciprocating motion of the ejector plates 22 to ensure ejection accuracy. Two sets of air connectors 23 are provided at the bottom of one set of ejector plates 22 inside the moving template 2. The air connectors 23 are connected to the hot runner valve needle drive system and are used to control the opening and closing action of the hot runner valve needle. An ejection retraction limit switch 24 is provided on one side of the air connector 23. The ejection retraction limit switch 24 is used to monitor the stroke limit of the ejector plate 22 to prevent equipment failure caused by excessive ejection or insufficient retraction.

[0026] A system control terminal box 25 is fixedly connected to one side of the moving template 2. The integrated circuit interface and signal processing module inside the system control terminal box 25 are used to integrate the circuit connections and signal transmission of various sensors and actuators to achieve centralized control of mold operation. The top of both the moving template 2 and the fixed template 3 are equipped with a mold closing distance sensing sensor 26 and a thermometer 27. The mold closing distance sensing sensor 26 is used to monitor the distance between the moving and fixed templates in real time during the mold closing process to ensure mold closing accuracy and safety. The probe end of the thermometer 27 directly contacts the surface of the mold core to collect the temperature data of the moving and fixed mold cores in real time, providing a basis for the adjustment of the cooling system.

[0027] Several pressure plates 28 are fixedly connected to the top of the moving template 2 corresponding to the stress area. The pressure plates 28 are made of high-strength alloy material and are used to disperse the pressure during the mold closing process and prevent the moving template 2 from deforming. Several guide pillars 29 are also fixedly connected to the top of the moving template 2. The guide pillars 29 are precisely matched with the guide sleeves on the fixed template 3 to provide guidance and positioning for the closing of the moving and fixed molds and ensure the alignment accuracy of the mold core.

[0028] The outer surface of the fixed mold core 6 is provided with several clamping blocks 31 corresponding to the stress points. The clamping blocks 31 are fastened to the fixed mold plate 3 by bolts, applying lateral pre-tightening force to the fixed mold core 6 and enhancing the structural stability of the fixed mold core 6 under high-pressure injection molding. The top of the fixed mold plate 3 is provided with several guide sleeves 32 corresponding to the guide post 29. The guide post 29 and the guide sleeve 32 adopt a clearance fit to achieve precise guidance during the mold closing process. The surface of the fixed mold plate 3 is also provided with a locking module 33 and a hot runner system junction box 34. The locking module 33 is used to achieve rigid locking of the moving and fixed mold plates after mold closing to prevent the parting surface from opening due to injection pressure. The hot runner system junction box 34 is used for the circuit connection and temperature control of the hot runner system to ensure the stable operation of the hot runner system.

[0029] The diameters of the inlet pipe 9 and the outlet pipe 10 are both set to 10mm. By increasing the diameters of the inlet and outlet pipes, the pipe resistance is reduced while ensuring sufficient coolant flow, thus achieving a balance between cooling efficiency and energy consumption.

[0030] Before mold closing, the moving mold base plate 1 moves the moving template 2 and the moving mold core 5 fixed thereon towards the fixed mold via a hydraulic cylinder. The fixed mold base plate 4 is fixed to the injection molding machine frame by bolts and other connecting parts, providing stable support for the fixed template 3 and the fixed mold core 6. The guide post 29 on the top of the moving template 2 is precision ground and forms a sliding fit with the guide sleeve 32 inside the fixed template 3 with a very small gap, realizing the initial guidance and centering of the moving and fixed molds. On this basis, the precision positioning pin on the fixed template 3 is precisely engaged with the corresponding positioning hole of the moving template, ensuring that the cavity surfaces of the moving mold core 5 and the fixed mold core 6 are completely fitted, forming a sealed molding space. During the mold closing process, the mold closing distance sensing sensor 26 on the top of the moving template 2 and the fixed template 3 collects the distance data between the two templates in real time. When the mold core is detected to be in complete contact and the preset mold closing depth is reached, the locking module 33 rigidly locks the moving template and the fixed template by hydraulic or mechanical means to avoid gaps on the mold parting surface caused by subsequent high injection pressure. After the mold is closed and locked, the hot runner system is activated by the control system. The molten plastic material in the injection molding machine barrel enters the hot runner manifold through the needle valve hot nozzle heated and insulated in the fixed mold core 6. The temperature control module in the junction box 34 of the hot runner system monitors the temperature of the hot nozzle and the manifold in real time. The temperature is adjusted by the heating wire to ensure that the material always maintains a suitable melt viscosity in the runner. According to the cavity structure design, the manifold evenly distributes the material to the two sets of runners 18 in the moving mold core 5. The operator can change the cross-sectional area of ​​the runner by rotating the valve core of the runner regulating valve 19, thereby adjusting the material flow rate and pressure in different runners to ensure that the material fills all corners of the cavity at the same time, avoiding material shortage or air bubbles due to uneven filling. During the injection process, since the clamping block 31 on the outer surface of the fixed mold core 6 is fastened to the fixed mold plate 3 by bolts, the pre-tightening force is applied from the side of the fixed mold core 6, which can enhance the structural stability of the fixed mold core 6 under high pressure injection and prevent the cavity size deviation caused by the deformation of the fixed mold core 6 under force. When the raw material injection is completed and cooling is required, the coolant delivered by the external cooling system enters the mold through the cooling water connector 13 on the water distribution block 12 on the surface of the fixed mold plate 3 and the moving mold plate 2. It is then delivered to the water collection block 7 in the moving mold core 5 through the high-temperature resistant cooling water pipe 15 and the sealed water connector 11. The water collection block 7 is connected by pipes to form multiple distribution channels, which evenly distribute the coolant to multiple sets of U-shaped pipes 8. The U-shaped pipes 8 adopt an embedded design to fit tightly against the inner wall of the cavity of the moving mold core 5, so that the coolant can directly absorb the heat transferred by the mold core. After the heat exchange is completed, the coolant is collected in the outlet pipe 10, flows back to the water distribution block 12 through the return pipe 16 and then through the return water connector 14, and finally returns to the external cooling system for cooling, forming a complete cycle. The fixed mold core 6 has several cooling pipes 17 evenly arranged inside according to the cavity contour. The two ends of the cooling pipes 17 are connected to the water distribution block 12 through water connectors 11 and flexible hoses, forming a cooling circuit independent of the moving mold. When the coolant flows in the cooling pipes 17, it exchanges heat with the fixed mold core 6 through the pipe wall. Since the cooling pipes 17 cover the key areas of the cavity, they can achieve uniform cooling of the fixed mold core and avoid uneven product molding caused by temperature difference between the fixed mold core and the moving mold. The thermometers 27 on the moving mold plate 2 and the fixed mold plate 3 adopt an insertion design, with the probe directly contacting the surface of the mold core to collect the temperature data of the mold core and the mold plate in real time. These data are transmitted to the control system in real time. When the temperature deviates from the preset range, the system will automatically adjust the flow rate of the coolant to ensure that the cavity temperature is always maintained in a suitable molding range and to avoid the impact of temperature fluctuation on product quality. After the product cools to the set molding temperature in the cavity, the control system sends an unlocking signal, and the locking module 33 releases the locking of the moving mold plate and the fixed mold plate. The moving mold base plate 1 drives the moving mold plate 2 to move backward as a whole, causing the moving mold core 5 to separate from the fixed mold core 6, completing the mold opening action. After the mold is in place, compressed air is introduced through the air connector 23 for controlling the hot runner valve needle, driving the valve needle to quickly close the hot runner outlet to prevent leakage of residual molten material in the runner. At the same time, the elastic potential energy stored in the spring 30 in the moving mold plate 2 during the mold opening process is released, pushing the ejector plate 22 to move upward along the slide bar. The ejector plate 22 drives several straight ejectors 20, angled ejectors 21, and ejector pins to move synchronously: straight ejectors 20 The vertical ejector plate 21 acts on the planar area of ​​the product, providing a stable pushing force. The angled ejector plate 21 moves laterally through a guide mechanism to peel off complex curved surfaces or undercut structures of the product, ensuring that the product does not stick to the mold core. During the ejection process, the ejection return limit switch 24 monitors the movement stroke of the ejector plate 22 in real time. When the preset maximum ejection distance is reached, the system controls the ejector plate 22 to stop moving to prevent over-ejection and product deformation. If the stroke is insufficient, an alarm is issued. After demolding, the moving mold begins to reset forward. The return rod on the moving mold plate 2 contacts the fixed mold plate 3 and is subjected to force, driving the ejector plate 22 and all ejection mechanisms back to their initial positions, preparing for the next molding cycle.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A car airbag mold, characterized in that, include: A moving mold base plate (1) is connected to a moving template (2) at the top of the moving mold base plate (1), and a fixed template (3) is provided at the top of the moving template (2) and a fixed mold base plate (4) is connected to the top of the fixed template (3). The moving mold core (5) is located inside the moving template (2) and is used to cooperate with the corresponding fixed mold core (6) in the fixed template (3) to form the molding cavity of the airbag product. The moving mold core (5) is provided with several water collection blocks (7). The water collection blocks (7) are provided with U-shaped pipes (8). The two ends of the U-shaped pipes (8) are respectively connected to the inlet pipe (9) and the outlet pipe (10). When the coolant enters the U-shaped pipe (8) through the inlet pipe (9), the water collection blocks (7) uniformly cool the moving mold core (5) with the cooperation of the U-shaped pipe (8). The coolant after absorbing heat is discharged through the outlet pipe (10) to realize the cooling in the airbag molding process. Water connector (11), the water connector (11) is provided in several groups and is respectively connected to one end of the water inlet pipe (9) and the water outlet pipe (10).

2. The automotive airbag mold according to claim 1, characterized in that: Both the moving template (2) and the fixed template (3) are connected to a water distribution block (12). The water distribution block (12) is connected to a cooling water connector (13) and a return water connector (14). One side of the water distribution block (12) is connected to a cooling water pipe (15), and the other end of the cooling water pipe (15) is connected to a water connector (11) on the inlet pipe (9). The other side of the water distribution block (12) is connected to a return water pipe (16), and the other end of the return water pipe (16) is connected to a water connector (11) on the outlet pipe (10).

3. The automotive airbag mold according to claim 2, characterized in that: The fixed mold core (6) is provided with several cooling pipes (17), and the two ends of the cooling pipes (17) are respectively connected to water connectors (11). The other ends of the two sets of water connectors (11) are respectively connected to the water distribution block (12) through hoses.

4. The automotive airbag mold according to claim 1, characterized in that: The moving mold core (5) is provided with two sets of flow channels (18) and flow channel regulating valves (19) are provided in the flow channels (18). The moving mold core (5) is also provided with several straight tops (20) and inclined tops (21).

5. The automotive airbag mold according to claim 1, characterized in that: A spring (30) is provided inside the moving template (2). Several sliding rods are connected inside the moving template (2), and several ejector plates (22) are slidably mounted on the sliding rods. Two sets of air connectors (23) are provided inside the moving template (2) and at the bottom of one set of ejector plates (22). An ejection and retraction limit switch (24) is provided on one side of the air connector (23).

6. The automotive airbag mold according to claim 1, characterized in that: The moving template (2) is connected to a system control terminal box (25) on one side. The moving template (2) and the fixed template (3) are both equipped with a mold closing distance sensing sensor (26) and a thermometer (27) on their tops.

7. The automotive airbag mold according to claim 1, characterized in that: The top of the moving template (2) is connected to several pressure plates (28) and guide columns (29).

8. The automotive airbag mold according to claim 7, characterized in that: The outer surface of the fixed mold core (6) is provided with several clamping blocks (31), the top of the fixed mold plate (3) is provided with several guide sleeves (32) and the guide post (29) is inserted into the guide sleeve (32), and the surface of the fixed mold plate (3) is also provided with a locking module (33) and a hot runner system junction box (34).

9. The automotive airbag mold according to claim 1, characterized in that: The diameter of the inlet pipe (9) and the outlet pipe (10) is 10 mm.

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