A bag protection cloth device and bag protection cloth method for an airbag for a vehicle

Abstract

The application relates to a kind of airbag protective cloth device and protective cloth method for vehicle, belong to the technical field of airbag protective cloth, including material loading mechanism, folding mechanism and feeding mechanism, material loading mechanism includes material loading table and material loading moving assembly, material loading table is used to place the protective cloth to be assembled, folding mechanism includes folding table and folding assembly, folding table is equipped with folding positioning tool, feeding mechanism includes feeding rack, discharging rack and airbag moving assembly, feeding rack is used to place airbag, material loading moving assembly moves the protective cloth on material loading table to folding table, airbag moving assembly moves the airbag of feeding rack to folding table, folding assembly cooperates with folding positioning tool and assembles protective cloth on airbag, and then airbag moving assembly moves the airbag assembled with protective cloth from folding table to discharging rack, completes the assembly of protective cloth, the application can reach the effect of improving the work efficiency of assembling protective cloth on airbag.

Description

Technical Field

[0001] This application relates to the technical field of airbag protective fabric, and in particular to an airbag protective fabric covering device and method for vehicles. Background Technology

[0002] Automotive airbags are a passive safety protection system widely used in automobiles to provide effective collision protection for passengers. Airbags are stored in a folded state in various locations within the car, such as the dashboard, side doors, or in front of the passenger seat.

[0003] When a vehicle is not in a collision, the airbag is stored in a special storage box. The design and materials of the storage box need to be able to withstand a certain amount of pressure to ensure that the airbag can deploy quickly in the event of a collision. When not in use, the airbag stored in the storage box is usually equipped with a protective cover, also known as a flexible cover. This cover is mainly used to protect the airbag in the storage box when it is not deployed, thereby improving the storage efficiency and quality of the vehicle's airbags. However, in the current technology, the protective cover is generally attached to the compressed airbag by a combination of manual and mechanical methods, which results in low work efficiency. Summary of the Invention

[0004] In order to improve the efficiency of assembling protective cloths onto airbags, this application provides a protective cloth covering device and a method for covering protective cloths onto vehicle airbags.

[0005] In a first aspect, this application provides a protective fabric device for a vehicle airbag, employing the following technical solution: A protective cloth covering device for a vehicle airbag, used to assemble the protective cloth onto a compressed airbag, includes a loading mechanism, a folding mechanism, and a loading / unloading mechanism. The folding mechanism is located between the loading mechanism and the loading / unloading mechanism. The loading mechanism includes a loading platform and a loading moving component. The folding mechanism includes a folding platform and a folding component. A folding positioning fixture is provided on the folding platform for positioning the protective cloth and the airbag on the folding platform. The loading / unloading mechanism includes a loading rack, a unloading rack, and an airbag moving component. The loading platform is used to place the protective cloth to be assembled, the loading rack is used to place the compressed airbag, the loading moving assembly is used to move the protective cloth on the loading platform to the folding platform, the airbag moving assembly is used to move the airbag on the loading rack to the folding platform or move the airbag from the folding platform to the unloading rack, and the folding assembly cooperates with the positioning fixture to assemble the protective cloth onto the airbag.

[0006] By adopting the above technical solution, the protective cloth on the loading platform is moved to the folding platform by the material moving component, and the safety airbag on the loading rack is moved to the folding platform by the airbag moving component. During this process, the positions of the protective cloth and the safety airbag are limited by the folding positioning fixture. Then, the folding positioning fixture can also cooperate with the folding component to assemble the protective cloth onto the safety airbag. Finally, the safety airbag on the folding platform is moved to the unloading rack by the airbag moving component, completing the overall process of assembling the protective cloth onto the safety airbag. Compared with assembling the protective cloth manually, this method effectively improves the work efficiency of assembling the protective cloth onto the safety airbag and reduces labor costs.

[0007] Preferably, the folding platform is provided with a folding cavity adapted to the shape of the airbag. There are multiple folding positioning fixtures, which are correspondingly arranged with the outer frame of the folding cavity. Each folding positioning fixture includes a positioning block slidably disposed on the folding platform. A positioning plate is rotatably connected to the positioning block. A positioning pin that mates with the mounting hole on the protective cloth is slidably connected to the positioning plate. The positioning pin has a positioning hole for the screw on the airbag to engage. When the protective cloth is folded onto the airbag by the positioning plate, the screw is located in the positioning hole. The folding assembly is used to control the rotation of the positioning plate.

[0008] By adopting the above technical solution, when the protective cloth is moved to the folding table by the material-carrying moving component, the positioning pin on the positioning tray passes through the mounting hole on the protective cloth to complete the positioning of the protective cloth. Then, the airbag placed on the protective cloth will fall into the folding cavity. During this process, the positioning pin will move towards the folding cavity under the force of the protective cloth being pulled. Then, the positioning tray can be rotated by the folding component until the screw on the airbag is embedded in the positioning hole, completing the folding and assembly of the protective cloth. This process does not require manual assistance, improving the work efficiency of assembling the protective cloth on the airbag. Moreover, the protective cloth is in a flat state during the assembly process, improving the quality of the protective cloth assembly. In addition, the cooperation between the positioning hole on the positioning pin and the screw on the airbag improves the reliability of assembling the protective cloth by rotating the positioning tray.

[0009] Preferably, the folding assembly includes a folding frame, a folding frame slidably connected to the folding frame, a clamping cylinder provided on the folding frame, a clamping block cooperating with the clamping cylinder rotatably connected to the positioning plate, and a folding sliding assembly for driving the folding frame to slide.

[0010] By adopting the above technical solution, the rotation of the positioning tray can be easily controlled with the cooperation of the clamping block and the clamping cylinder, thus enabling convenient folding and assembly of the protective cloth.

[0011] Preferably, the folding frame is slidably connected to a pin on the side opposite to the clamping cylinder, the pin being used to restrict the protective cloth from moving away from the folding table.

[0012] By adopting the above technical solution, and through the setting of the ejector pin, when the positioning tray rotates in the direction away from the airbag under the cooperation of the clamping cylinder and the folding frame, the movement of the protective cloth is restricted by the ejector pin, thereby improving the reliability of assembling the protective cloth onto the airbag through the rotation of the positioning tray.

[0013] Preferably, the folding platform includes a fixed plate and a rotating plate. The rotating plate is rotatably mounted on the fixed plate. The fixed plate is provided with a rotating component for driving the rotating plate to rotate. After the rotating plate rotates, the clamping block on any one of the positioning trays corresponds to the clamping cylinder.

[0014] By adopting the above technical solution, the rotating disk is rotatably mounted on the fixed disk under the action of the rotating component. Thus, the rotation of the rotating disk can make the clamping block on any positioning tray correspond to the clamping cylinder. Then, the clamping cylinder and the clamping block can cooperate to drive the rotation of the positioning tray. In this way, the same clamping cylinder can complete the assembly of the four sides of the protective cloth, saving the space required for the device.

[0015] Preferably, the folding frame is also slidably connected to a pressure block corresponding to the folding cavity, and a control block is slidably connected inside the folding cavity. The control block can slide toward the pressure block until the end face of the control block is flush with the end face of the rotating disk. The pressure block and the control block cooperate to allow the airbag to be housed in the folding cavity. The pressure block includes a fixed block and a rotating ring block. The fixed block has a groove for the rotating ring block to rotate.

[0016] By adopting the above technical solution, the cooperation between the pressure block and the control block facilitates the movement of the airbag into the embedded folding cavity, thereby facilitating subsequent operations. With the cooperation between the rotating ring block and the fixed block, the pressure block can still maintain a close fit with the airbag during the rotation of the rotating disk. With the cooperation between the pressure block and the control block, the protective cloth remains flat during the folding process, improving the quality of the protective cloth assembly on the airbag.

[0017] Preferably, an upper plate and a lower plate are slidably connected on the loading platform. The upper plate is located above the lower plate in the vertical direction. Both the upper plate and the lower plate slide along the length of the loading platform. The loading platform is provided with a sliding control component for driving the upper plate and the lower plate to slide. The upper plate is provided with a tooling tray one on the end face away from the lower plate, and a tooling tray two is slidably connected to the lower plate. Both tooling tray one and tooling tray two are used to place protective cloth. The lower plate is provided with a material carrier for controlling the tooling tray two to slide in the vertical direction. The tooling tray two can slide to be flush with tooling tray one or to be in contact with the lower plate.

[0018] By adopting the above technical solution, the loading platform is divided into loading points and replenishment points along its length. When tooling plate one is located at the loading point, tooling plate two is located at the replenishment point. The protective cloth can be picked up from tooling plate one by the loading moving component. When the protective cloth on tooling plate one is used up, tooling plate two can be moved to fit with the lower plate by the loading component. At this time, the upper plate and the lower plate can slide in a staggered manner until tooling plate two is located at the loading point and tooling plate one is located at the replenishment point. Then, tooling plate two can be moved to be flush with tooling plate one by the loading component. The protective cloth can be picked up from tooling plate two by the loading moving component. At this time, the worker can replenish the protective cloth to be assembled on tooling plate one, which effectively improves the loading efficiency of the protective cloth, thereby improving the work efficiency of assembling protective cloth on the airbag.

[0019] Preferably, both the loading rack and the unloading rack are provided with placement slots. The placement slots are used to place the airbags and the airbags are slidably disposed in the placement slots. The unloading rack is arranged in the shape of a slide. The end of the unloading rack away from the ground is provided with a unloading cylinder for pushing the airbag to slide along the unloading rack.

[0020] By adopting the above technical solution, the airbag is slidably moved by the feeding cylinder, making it less likely for the airbag to accumulate on the feeding rack and facilitating the feeding of the airbag.

[0021] Preferably, both ends of the rotating ring block are provided with guide arc surfaces.

[0022] By adopting the above technical solution and setting the guide arc surface, the rotating arc block can be moved into the embedded groove during the rotation process.

[0023] Secondly, this application provides a method for covering a protective cloth using the above-mentioned protective cloth device for automotive airbags, comprising the following steps: S1. Loading: The protective cloth placed on the loading platform is moved to the folding platform by the loading moving component, and the safety airbag placed on the loading rack is moved to the folding platform by the airbag moving component. The protective cloth is located between the folding platform and the safety airbag. S2. Assembly: The protective cloth and the airbag placed on the folding table are positioned by the positioning fixture. The protective cloth is folded by the folding component and the positioning fixture, so that the protective cloth is assembled on the airbag. S3, Unloading: The airbag equipped with protective cloth, located on the folding table, is moved to the unloading rack by the airbag moving assembly.

[0024] By adopting the above technical solution, the above method, in conjunction with the protective cloth device for vehicle airbags, can conveniently assemble the protective cloth onto the airbag. The automated device not only improves the work efficiency of assembling the protective cloth onto the airbag, but also reduces the labor cost required for assembling the protective cloth onto the airbag.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The protective cloth on the loading platform is moved to the folding platform by the material moving component, and the safety airbag on the loading rack is moved to the folding platform by the airbag moving component. During this process, the position of the protective cloth and the safety airbag is limited by the folding positioning fixture. Then, the folding positioning fixture can also cooperate with the folding component to assemble the protective cloth onto the safety airbag. Finally, the safety airbag on the folding platform is moved to the unloading rack by the airbag moving component to complete the whole process of assembling the protective cloth onto the safety airbag. Compared with assembling the protective cloth manually, this method effectively improves the work efficiency of assembling the protective cloth onto the safety airbag and reduces labor costs. 2. The loading platform is divided into loading points and replenishment points along its length. When tooling plate one is at the loading point, tooling plate two is at the replenishment point. Protective cloth can be picked up from tooling plate one by the loading moving component. When the protective cloth on tooling plate one is used up, tooling plate two can be moved to fit with the lower plate by the loading component. At this time, the upper plate and the lower plate can slide in a staggered manner until tooling plate two is at the loading point and tooling plate one is at the replenishment point. Then, tooling plate two can be moved to be flush with tooling plate one by the loading component. Protective cloth can be picked up from tooling plate two by the loading moving component. At this time, the worker can replenish the protective cloth to be assembled on tooling plate one, which effectively improves the loading efficiency of protective cloth, thereby improving the work efficiency of assembling protective cloth on airbags. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0027] Figure 2 This is a top view of the overall structure in the embodiment of this application.

[0028] Figure 3 This is a schematic diagram of the protective fabric structure in an embodiment of this application.

[0029] Figure 4 This is a schematic diagram of the airbag structure in an embodiment of this application.

[0030] Figure 5 This is a schematic diagram of the material loading platform structure in an embodiment of this application.

[0031] Figure 6 This is a schematic diagram of the sliding structure of the upper and lower plates in an embodiment of this application.

[0032] Figure 7 This is a schematic diagram of the loading rack and unloading rack structure in an embodiment of this application.

[0033] Figure 8 This is a schematic diagram of the material loading frame and the moving frame structure in the embodiments of this application.

[0034] Figure 9 This is a top view of the folding table in an embodiment of this application.

[0035] Figure 10 yes Figure 9 AA section view in the image.

[0036] Figure 11 This is a schematic diagram of the folding component structure in an embodiment of this application.

[0037] Explanation of reference numerals in the attached drawings: 1. Loading mechanism; 11. Loading frame; 111. Lead screw; 112. Guide tube; 12. Loading frame; 121. Suction cup; 122. Loading cylinder; 2. Folding mechanism; 21. Folding table; 211. Folding cavity; 212. Control block; 213. Folding cylinder; 22. Fixed plate; 221. Gear; 222. Rotating motor; 23. Rotating plate; 231. Gear ring; 24. Limiting component; 3. Loading and unloading mechanism; 31. Loading frame; 311. Placement slot; 312. Limiting slot; 32. Unloading frame; 321. Unloading cylinder; 33. Moving frame; 331. Moving frame; 332. Bidirectional cylinder; 333. Limiting block; 334. Moving cylinder; 4. Safety airbag; 41. Screw; 5. 51. Protective cloth; 6. Mounting hole; 7. Material loading platform; 8. Upper plate; 9. Tooling tray one; 10. Lower plate; 11. Tooling tray two; 12. Material loading cylinder; 13. Conveyor pulley; 14. Conveyor belt; 15. Slide rail; 16. Positioning seat; 17. Slide rail; 18. Fixing pin; 19. Positioning block; 10. Positioning support plate; 11. Positioning pin; 12. Positioning hole; 13. Positioning groove; 14. Clamping block; 15. Folding frame; 16. Folding frame; 17. Clamping cylinder; 18. X-axis travel assembly; 19. Y-axis travel assembly; 10. Z-axis travel assembly; 11. Ejector pin; 12. Limiting cylinder; 13. Pressure block; 14. Pressing cylinder; 15. Fixing block; 16. Rotating ring block. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-11 This application will be described in further detail.

[0039] This application discloses a protective cloth device for a vehicle airbag, used to assemble a protective cloth 5 onto a compressed airbag 4, as shown in the following embodiment. Figure 1 and Figure 2 It includes a loading mechanism 1, a folding mechanism 2, and a loading / unloading mechanism 3. The loading mechanism 1, the folding mechanism 2, and the loading / unloading mechanism are all placed on the same working surface, and the folding mechanism 2 is located between the loading mechanism 1 and the loading / unloading mechanism 3.

[0040] Reference Figure 3 and Figure 4 The compressed airbag 4 is rectangular in shape, and its top has four screws 41 for assembly with other components. The protective cloth 5 to be assembled is arranged in a cross shape. Mounting holes 51 for the screws 41 to pass through are provided at the four ends of the protective cloth 5 furthest from the center. During the assembly of the protective cloth 5, the airbag 4 is first placed on the protective cloth 5, so that the center of the protective cloth 5 and the center of the airbag 4 are on the same straight line. Then, the four ends of the protective cloth 5 are folded towards the airbag 4, allowing the screws 41 to pass through the mounting holes 51, thus completing the assembly of the protective cloth 5. Because the airbag 4 in this application is rectangular, the distances between two adjacent ends of the protective cloth 5 and the center of the protective cloth 5 are not the same, while the distances between two opposite ends of the protective cloth 5 and the centerline of the protective cloth 5 are the same. This makes the shapes of the mounting holes 51 on adjacent ends of the protective cloth 5 different, thus facilitating the identification of the long and short sides of the protective cloth 5.

[0041] Reference Figure 1 , Figure 2 and Figure 5 The material loading mechanism 1 includes a material loading platform 6, on which an upper plate 61 and a lower plate 62 are slidably connected. The upper plate 61 is located above the lower plate 62 in the vertical direction. Both the upper plate 61 and the lower plate 62 slide along the length of the material loading platform 6. The material loading platform 6 is provided with a sliding control component for driving the upper plate 61 and the lower plate 62 to slide.

[0042] Reference Figure 5 and Figure 6The sliding control assembly includes six conveyor pulleys 63 rotatably mounted on the loading platform 6. These six pulleys 63 are vertically positioned between the upper plate 61 and the lower plate 62. The conveyor belt 631 is slidably mounted on the loading platform 6. The six pulleys 63 are divided into two groups and respectively positioned at both ends of the loading platform 6. Of the three pulleys 63 located at the same end, two are vertically aligned, while the third pulley 63 is vertically positioned between the other two pulleys and horizontally closer to the middle of the loading platform 6. A loading motor is fixedly mounted on the loading platform 6. The output shaft of the loading motor is coaxially fixed to one of the conveyor pulleys 63. The loading motor drives the conveyor pulley 63 to rotate, thereby causing the conveyor belt 631 to slide relative to the loading platform 6.

[0043] Reference Figure 6 The upper plate 61 and the lower plate 62 are fixed to the corresponding conveyor belt 631. The upper plate 61 and the lower plate 62 are located at the two ends of the loading platform 6, respectively. When any one of the conveyor belt pulleys 63 rotates, the upper plate 61 and the lower plate 62 can slide towards or away from each other under the action of belt drive. The bottom of the upper plate 61 and the lower plate 62 are provided with sliding grooves. The loading platform 6 is provided with a slide rail 64 that cooperates with the sliding groove. With the cooperation of the slide rail 64 and the sliding groove, the friction between the upper plate 61 or the lower plate 6 and the loading platform 6 is reduced when the upper plate 61 or the lower plate 62 slides on the loading platform 6, thereby improving the stability of the upper plate 61 or the lower plate 62 when sliding on the loading platform 6.

[0044] Reference Figure 1 and Figure 5 A tooling tray 611 is fixedly mounted on the end face of the upper plate 61 away from the lower plate 62. A tooling tray 621 is slidably connected to the lower plate 62. Both tooling trays 611 and 621 are used to place the protective cloth 5. Mounting blocks are fixedly mounted on both tooling trays 611 and 621. The mounting blocks cooperate with the mounting holes 51 on the protective cloth 5 to position the protective cloth 5 on tooling tray 611 or tooling tray 621. The lower plate 62 is provided with a material carrier for controlling the sliding of tooling tray 621 in the vertical direction. In this embodiment, the material carrier is a material carrier cylinder 622. The piston rod of the material carrier cylinder 622 is fixed to the end face of the lower plate 62 away from tooling tray 621. Tooling tray 621 can slide to be flush with tooling tray 611 or fit against the lower plate 62.

[0045] The loading platform 6 is divided into a loading point and a replenishment point along its length. With tooling tray 1 611 positioned at the loading point and tooling tray 2 621 positioned at the replenishment point, the worker can place the protective cloth 5 to be replenished onto tooling tray 2 621 at the replenishment point. After the protective cloth 5 on tooling tray 1 611 is used up, the loading cylinder 622 is activated, causing tooling tray 2 621 to slide down until it is flush with the end face of the lower plate 62. Then, the loading motor and loading cylinder 622 are activated again, causing tooling tray 1 611 to slide towards the replenishment point. The second tooling tray 621 slides toward the loading point, and the protective cloth 5 on the second tooling tray 621 is less likely to collide with the upper plate 61. When the second tooling tray 621 slides to the loading point, the loading cylinder 622 is activated again, so that the second tooling tray 621 slides to be flush with the first tooling tray 611. With the cooperation of the first tooling tray 611 placed on the upper plate 61 and the second tooling tray 621 set on the lower plate 62, the loading efficiency of the protective cloth 5 is effectively improved, thereby improving the work efficiency of assembling the protective cloth 5 on the airbag 4.

[0046] Reference Figure 1 , Figure 2 and Figure 7 The loading and unloading mechanism 3 includes a loading rack 31 and a unloading rack 32. The loading rack 31 is arranged in a parallel long strip shape. The unloading rack 32 is located between the folding mechanism 2 and the loading rack 31. The unloading rack 32 is arranged in a slide shape. Both the loading rack 31 and the unloading rack 32 are provided with a placement groove 311 for placing the compressed airbag 4. The unloading rack 32 is also provided with a unloading cylinder 321 at the higher end. The unloading cylinder 321 is located in the placement groove 311. The unloading cylinder 321 allows the airbag 4, which is equipped with a protective cloth 5, placed on the unloading rack 32 to slide along the unloading rack 32, which facilitates unloading.

[0047] Reference Figure 1 and Figure 8 The loading mechanism 1 also includes a loading moving component, which is used to move the protective cloth 5 on the loading platform 6 to the folding platform 21. The loading component includes a loading frame 11, and a loading frame 12 is slidably connected to the loading frame 11. The loading frame 12 slides along the length direction of the loading frame 11. The loading and unloading mechanism 3 also includes an airbag moving component, which is used to move the safety airbag 4 on the loading rack 31 to the folding platform 21 or move the safety airbag 4 from the folding platform 21 to the unloading rack 32. The airbag moving component includes a moving frame 33. In this embodiment, the moving frame 33 is integrally formed with the loading frame 11. A moving frame 331 is slidably connected to the moving frame 33. The moving frame 331 slides along the length direction of the moving frame 33.

[0048] Reference Figure 8Both the loading frame 11 and the moving frame 33 are rotatably connected to lead screws 111. The loading frame 12 and the moving frame 331 are provided with moving through holes that are threadedly engaged with the lead screws 111. One end of the lead screw 111 is provided with a moving motor. The output shaft of the moving motor is fixed coaxially with the lead screw 111. The moving motor is fixed to the corresponding loading frame 11 or moving frame 33. The loading frame 11 and the moving frame 33 are also fixed with guide tubes 112. The loading frame 12 and the moving frame 331 are provided with guide through holes that are engaged with the guide tubes 112. When the moving motor starts, the loading frame 12 and the moving frame 331 can slide along the length direction of the lead screw 111 under the action of threaded transmission. The guide tubes 112 are engaged with the guide through holes to improve the stability of the loading frame 12 and the moving frame 331 during the sliding process.

[0049] Reference Figure 8 Five suction cups 121 are slidably connected to the material frame 12. The five suction cups 121 correspond to the center and four ends of the protective cloth 5, respectively. The suction cups 121 slide in the vertical direction. A vacuum generator is provided on the material frame 12 to cooperate with the suction cups 121. A material-carrying cylinder 122 for controlling the sliding of the suction cups 121 is fixed on the material frame 12. The piston rod of the material-carrying cylinder 122 is coaxially fixed with the suction cups 121. A bidirectional cylinder 332 is slidably connected to the moving frame 331. The bidirectional cylinder 332 slides vertically. The moving frame 331 is provided with a moving cylinder 334 for controlling the sliding of the bidirectional cylinder 332. The piston rod of the moving cylinder 334 is fixed to the bidirectional cylinder 332. A semi-circular arc-shaped limiting block 333 is fixedly connected to the piston rod at both ends of the bidirectional cylinder 332. The loading rack 31 and the unloading rack 32 are provided with limiting grooves 312 that cooperate with the limiting blocks 333. The limiting grooves 312 are connected to the placement groove 311. The limiting grooves 312 on the loading rack 31 and the unloading rack 32 are located on the same straight line. With the cooperation of the bidirectional cylinder 332 and the limiting blocks 333, the safety airbag 4 located on the loading rack 31 can be clamped, or the safety airbag 4 equipped with protective cloth 5 can be placed on the unloading rack 32.

[0050] Reference Figure 1 , Figure 2 and Figure 9 The folding mechanism 2 includes a folding platform 21 with a folding cavity 211. A limiting member 24 can be set on the folding platform 21 so that the size of the opening of the folding cavity 211 is adapted to the airbag 4. The limiting member 24 guides the sliding of the airbag 4 into the folding cavity 211, making the folding platform 21 suitable for different models of airbags 4, thus improving the applicability of the protective cloth 5 device to a certain extent.

[0051] Reference Figure 9 and Figure 10The folding table 21 includes a fixed plate 22 and a rotating plate 23. The fixed plate 22 is fixed to the working surface by a support leg. The fixed plate 22 and the rotating plate 23 are coaxially arranged, and the rotating plate 23 is rotatably arranged on the fixed plate 22. The folding cavity 211 passes through the rotating plate 23. The fixed plate 22 is provided with a rotating component for driving the rotating plate 23 to rotate. In this embodiment, the rotating component includes a gear ring 231. The gear ring 231 is coaxially fixed with the end face of the rotating plate 23 facing the fixed plate 22. A gear 221 that meshes with the gear ring 231 is rotatably connected to the fixed plate 22. A rotating motor 222 for driving the gear 221 to rotate is fixed on the fixed plate 22. The output shaft of the rotating motor 222 is coaxially fixed with the gear 221. After the rotating motor 222 is started, the rotating plate 23 can rotate under the action of the gear 221.

[0052] Reference Figure 9 and Figure 10 The rotating disk 23 is equipped with a folding positioning fixture, which is used to position the protective cloth 5 and the airbag 4 on the folding table 21. There are multiple folding positioning fixtures. Since the number of folding positioning fixtures is adapted to the shape of the protective cloth 5, there are four folding positioning fixtures in this embodiment. The four folding positioning fixtures correspond to the four end faces of the folding cavity 211 respectively. The folding positioning fixture includes a positioning seat 7 and a positioning block 72. The positioning seat 7 is fixed on the rotating disk 23, and the positioning block 72 is slidably disposed on the positioning seat 7. The positioning block 72 slides along the length direction of the positioning seat 7. The positioning seat 7 is provided with a slide rail 71 for the positioning block 72 to slide. By setting the slide rail 71, the distance between the positioning block 72 and the folding cavity 211 can be adjusted, so that the folding positioning fixture can be adapted to protective cloths 5 of different sizes, thereby improving the applicability of the protective cloth 5 wrapping device. A fixing pin 711 is also threaded onto the side wall of the slide 71. The fixing pin 711 can rotate to separate from or abut against the positioning block 72. When the fixing pin 711 rotates to abut against the positioning block 72, it locks the sliding of the positioning block 72 relative to the positioning seat 7.

[0053] Reference Figure 9 and Figure 10 A positioning plate 73 is rotatably connected to the positioning block 72. The rotation axis of the positioning plate 73 is parallel to the outer frame of the corresponding folding cavity 211. A positioning pin 731 that mates with the mounting hole 51 on the protective cloth 5 is slidably connected to the positioning plate 73. When the protective cloth 5 is placed on the folding table 21, the positioning pin 731 on the positioning plate 73 passes through the corresponding mounting hole 51 on the protective cloth 5, completing the loading of the protective cloth 5. The positioning plate 73 has a positioning groove 733 for the positioning pin 731 to slide. A return spring is also provided inside the positioning plate 73. One end of the return spring is fixed to the inner wall of the positioning groove 733, and the other end of the return spring is fixed to the positioning pin 731. The return spring is used to push the positioning pin 731 to slide away from the folding cavity 211.

[0054] Reference Figure 9 and Figure 10 The positioning pin 731 has a positioning hole 732 for the screw 41 on the airbag 4 to engage. When the protective cloth 5 is folded onto the airbag 4 by the positioning plate 73, the screw 41 is located in the positioning hole 732. The positioning hole 732 on the positioning pin 731 cooperates with the screw 41 to provide positioning for the rotation of the positioning plate 73 and the folding of the protective cloth 5. When the positioning plate 73 rotates away from the airbag 4, the protective cloth 5 located on the positioning plate 73 can slide along the positioning pin 731 to be mounted on the airbag 4, which facilitates the mounting of the protective cloth 5 onto the airbag 4 and improves the efficiency of mounting the protective cloth 5 onto the airbag 4 to a certain extent.

[0055] Reference Figure 1 and Figure 11 The folding mechanism 2 also includes a folding assembly, which controls the rotation of the positioning tray 73. The rotation of the positioning tray 73 allows the protective cloth 5 to be mounted on the airbag 4. The folding assembly includes a folding frame 8. To save space, the folding frame 8 and the loading frame 11 are positioned on opposite sides of the axis of the folding table 21. A folding frame 81 is slidably connected to the folding frame 8, and a folding sliding assembly for moving the folding frame 81 is fixed to the folding frame 8. Figure 11 As shown, the folding sliding assembly includes an X-axis traveling assembly 82, a Y-axis traveling assembly 83, and a Z-axis traveling assembly 84 that cooperate with each other. The Y-axis traveling assembly 83 can slide along the length direction of the X-axis traveling assembly 82 under the action of the X-axis traveling assembly 82. The Z-axis traveling assembly 84 can slide along the length direction of the Y-axis traveling assembly 83 under the action of the Y-axis traveling assembly 83. The folding frame 81 can slide along the length direction of the Z-axis traveling assembly 84 under the action of the Z-axis traveling assembly 84. The folding frame 81 can slide in three directions: X-axis, Y-axis, and Z-axis under the action of the folding sliding assembly.

[0056] Reference Figure 11 A clamping cylinder 811 is fixedly mounted on the folding frame 81, and a clamping block 734 that cooperates with the clamping cylinder 811 is rotatably connected to the positioning plate 73. After the clamping cylinder 811 clamps the clamping block 734, the positioning plate 73 can be rotated by the sliding of the folding frame 81 until the screw 41 is embedded in the positioning hole 732. The positioning plate 73 is provided with a rotating rod for the clamping block 734 to rotate. The clamping block 734 is provided with a rotating through hole for the rotating rod to pass through. A rotating torsion spring is sleeved on the rotating rod. One end of the rotating torsion spring abuts against the clamping block 734, and the other end of the rotating torsion spring abuts against the positioning plate 73. The rotating torsion spring facilitates the reset of the clamping block 734 after rotation.

[0057] Reference Figure 11A pin 85 is slidably connected to the side of the folding frame 81 away from the clamping cylinder 811. The folding frame 81 is equipped with a limiting cylinder 851 for driving the pin 85 to slide. Through the setting of the pin 85, when the positioning tray 73 rotates away from the airbag 4 under the cooperation of the clamping cylinder 811 and the folding frame 81, the movement of the protective cloth 5 is restricted by the pin 85, improving the reliability of assembling the protective cloth 5 onto the airbag 4 through the rotation of the positioning tray 73. After the rotating disk 23 rotates, the clamping block 734 on any one of the positioning trays 73 can be positioned below the clamping cylinder 811. By rotating the rotating disk 23, the rotation of the four positioning trays 73 can be controlled sequentially, thereby completely assembling the protective cloth 5 onto the folding table 21.

[0058] Reference Figure 1 and Figure 11 The folding frame 8 is also slidably connected to a pressure block 86 corresponding to the folding cavity 211. The pressure block 86 is located on the center line of the folding cavity 211 and can slide along the center line of the folding cavity 211. The folding frame 8 is provided with a pressing cylinder 861 for controlling the sliding of the pressure block 86. A control block 212 is slidably connected inside the folding cavity 211. The control block 212 can slide toward the pressure block 86 until the end face of the control block 212 is flush with the end face of the rotating disk 23. A folding cylinder 213 for controlling the sliding of the control block 212 is fixed on the fixed disk 22. The piston rod of the folding cylinder 213 is rotatably connected to the control block 212.

[0059] Before the protective cloth 5 is loaded, the control block 212 moves to be flush with the table surface of the folding table 21 under the action of the folding cylinder 213 until the airbag 4 moves onto the folding table 21 under the action of the airbag moving assembly. Then, the pressure block 86 moves to fit against the airbag 4 under the action of the pressing cylinder 861. Then, the pressure block 86 cooperates with the control block 212 to drive the airbag 4 to slide into the folding cavity 211. During this process, the positioning pin 731 will slide along the positioning groove 733 under the action of the protective cloth 5.

[0060] Reference Figure 11 During the rotation of the positioning plate 73 and the rotating disk 23, the pressure block 86 remains in contact with the airbag 4. The pressure block 86 includes a fixed block 862 and a rotating ring block 863. The fixed block 862 has a groove for the rotating ring block 863 to rotate. The rotating ring block 863 is located at the end of the fixed block 862 facing the folding cavity 211 and is in contact with the end face of the airbag 4. The arrangement of the fixed block 862 and the rotating ring block 863 makes it less likely for the pressure block 86 to affect the rotation of the rotating disk 23. Both ends of the rotating ring block 863 are provided with guide arc surfaces, which facilitate the rotating ring block to move into the groove during rotation.

[0061] This application also discloses a method for covering the protective cloth of the vehicle airbag 4 using the above-mentioned protective cloth covering device, the specific steps of which are as follows: S1. Loading: In the initial state, the loading point of the loading frame 12 corresponds to that of the loading platform 6. First, the suction cup 121 is moved to fit with the protective cloth 5 on the loading platform 6 by the material-carrying cylinder 122. After the suction cup 121 and the vacuum generator grab the protective cloth 5 on the loading platform 6, the protective cloth 5 is moved to separate from the loading platform 6 by the material-carrying cylinder 122. Then, the loading frame 12 is moved to the top of the folding platform 21 by the material-carrying cylinder 122. The suction cup 121 is moved to the position pin 731 passing through the mounting hole 51 on the protective cloth 5, and the control of the suction cup 121 on the protective cloth 5 is released, thus completing the loading of the protective cloth 5. Move the moving frame 331 above the loading rack 31. Under the action of the moving cylinder 334, the limiting blocks 333 on both sides of the bidirectional cylinder 332 slide to the sides of the loading rack 31. Then, start the bidirectional cylinder 332 to clamp the airbag 4 on the loading rack 31 with the cooperation of the limiting blocks 333. Then, control the bidirectional cylinder 332 to move until the airbag 4 separates from the loading rack 31. Next, control the moving frame 331 to move above the folding table 21. Then, control the moving cylinder 334 to place the airbag 4 on the protective cloth 5 on the folding table 21, thus completing the loading of the airbag 4.

[0062] In addition, with the cooperation of the pressure block 86 and the control block 212, the airbag 4 placed on the folding table 21 can slide into the folding cavity 211 to complete the preparation work before the protective cloth 5 is folded.

[0063] S2. Assembly: The folding sliding assembly moves the clamping cylinder 811 on the folding frame 81 to engage with the clamping block 734. After the clamping cylinder 811 clamps the clamping block 734, the folding sliding assembly rotates the positioning plate 73 until the screw 41 on the airbag 4 is inserted into the positioning hole 732 on the positioning pin 731. Then, the folding sliding assembly rotates the positioning plate 73 to be placed on the positioning block 72. During this process, the limit cylinder 851 moves the ejector pin 85 to slide to fit against the protective cloth 5. Then, the rotating motor 222 is started, causing the rotating disk 23 to rotate to correspond with another folding positioning fixture and the folding frame 81. During this process, the pressure block 86 remains in contact with the airbag 4. The above operation is repeated until the protective cloth 5 is completely installed on the airbag 4.

[0064] Before unloading, the pressing block 86 that is attached to the airbag 4 is retracted by the pressing cylinder 861, and then the control block 212 is slid away from the ground by the folding cylinder 213 so that the airbag 4 is located outside the folding cavity 211, which facilitates the subsequent unloading operation.

[0065] S3. Unloading: Move the moving frame 331 above the folding table 21. Under the action of the moving cylinder 334, the limiting blocks 333 on both sides of the bidirectional cylinder 332 slide to both sides of the airbag 4 equipped with the protective cloth 5. Then, start the bidirectional cylinder 332 to clamp the airbag 4 with the cooperation of the limiting blocks 333. Then, control the bidirectional cylinder 332 to move until the airbag 4 separates from the folding table 21. Next, control the moving frame 331 to move above the unloading rack 32. Then, control the moving cylinder 334 to place the airbag 4 on the unloading rack 32. Start the unloading cylinder 321 to make the airbag 4 slide along the unloading rack 32 to complete the unloading.

[0066] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A protective cloth device for a vehicle airbag, used to assemble a protective cloth (5) onto a compressed airbag (4), characterized in that, The system includes a loading mechanism (1), a folding mechanism (2), and a loading / unloading mechanism (3). The folding mechanism (2) is located between the loading mechanism (1) and the loading / unloading mechanism (3). The loading mechanism (1) includes a loading platform (6) and a loading moving component. The folding mechanism (2) includes a folding platform (21) and a folding component. The folding platform (21) is provided with a folding positioning fixture. The folding positioning fixture is used to position the protective cloth (5) and the airbag (4) on the folding platform (21). The loading / unloading mechanism (3) includes an loading rack (31), an unloading rack (32), and an airbag moving component. The loading platform (6) is used to place the protective cloth (5) to be assembled, the loading rack (31) is used to place the compressed airbag (4), the loading moving assembly is used to move the protective cloth (5) on the loading platform (6) to the folding table (21), the airbag moving assembly is used to move the airbag (4) on the loading rack (31) to the folding table (21) or move the airbag (4) from the folding table (21) to the unloading rack (32), and the folding assembly cooperates with the folding positioning fixture to assemble the protective cloth (5) onto the airbag (4); The folding platform (21) is provided with a folding cavity (211) adapted to the shape of the airbag (4). There are multiple folding positioning fixtures, which are arranged corresponding to the outer frame of the folding cavity (211). The folding positioning fixture includes a positioning block (72) slidably disposed on the folding platform (21). A positioning support plate (73) is rotatably connected to the positioning block (72). A positioning pin (731) that cooperates with the mounting hole (51) on the protective cloth (5) is slidably connected to the positioning support plate (73). A positioning hole (732) is provided on the positioning pin (731) for the screw (41) on the airbag (4) to be fitted. When the protective cloth (5) is folded to be assembled on the airbag (4) by the positioning support plate (73), the screw (41) is located in the positioning hole (732). The folding assembly is used to control the rotation of the positioning support plate (73).

2. The protective fabric device for vehicle airbags according to claim 1, characterized in that, The folding assembly includes a folding frame (8), a folding frame (81) is slidably connected to the folding frame (8), a clamping cylinder (811) is provided on the folding frame (81), a clamping block (734) that cooperates with the clamping cylinder (811) is rotatably connected to the positioning plate (73), and a folding sliding assembly for driving the folding frame (81) to slide is provided on the folding frame (8).

3. The protective cloth device for vehicle airbags according to claim 2, characterized in that, The folding frame (81) is slidably connected to a pin (85) on the side away from the clamping cylinder (811), the pin (85) being used to restrict the protective cloth (5) from moving away from the folding table (21).

4. The protective cloth device for a vehicle airbag according to claim 2, characterized in that, The folding platform (21) includes a fixed plate (22) and a rotating plate (23). The rotating plate (23) is rotatably mounted on the fixed plate (22). The fixed plate (22) is provided with a rotating component for driving the rotating plate (23) to rotate. After the rotating plate (23) rotates, the clamping block (734) on any positioning tray (73) corresponds to the clamping cylinder (811).

5. The protective cloth device for a vehicle airbag according to claim 4, characterized in that, The folding frame (8) is also slidably connected to a pressure block (86) corresponding to the folding cavity (211). A control block (212) is slidably connected inside the folding cavity (211). The control block (212) can slide toward the pressure block (86) until the end face of the control block (212) is flush with the end face of the rotating disk (23). The pressure block (86) and the control block (212) cooperate to allow the airbag (4) to be housed in the folding cavity (211). The pressure block (86) includes a fixed block (862) and a rotating ring block (863). The fixed block (862) has a groove for the rotating ring block (863) to rotate.

6. The protective fabric device for a vehicle airbag according to claim 1, characterized in that, The loading platform (6) is slidably connected to an upper plate (61) and a lower plate (62). The upper plate (61) is located above the lower plate (62) in the vertical direction. Both the upper plate (61) and the lower plate (62) slide along the length of the loading platform (6). The loading platform (6) is provided with a sliding control component for driving the upper plate (61) and the lower plate (62) to slide. The upper plate (61) has a tooling tray one (611) on its end face away from the lower plate (62). The lower plate (62) has a tooling tray two (621) slidably connected to it. Both tooling tray one (611) and tooling tray two (621) are used to place protective cloth (5). The lower plate (62) has a material carrier for controlling the tooling tray two (621) to slide in the vertical direction. The tooling tray two (621) can slide to be flush with tooling tray one (611) or to be in contact with the lower plate (62).

7. The protective fabric device for a vehicle airbag according to claim 1, characterized in that, The loading rack (31) and unloading rack (32) are both provided with placement slots (311). The placement slots (311) are used for placing the airbag (4) and the airbag (4) is slidably disposed in the placement slots (311). The unloading rack (32) is arranged in the shape of a slide. The end of the unloading rack (32) away from the ground is provided with a unloading cylinder (321) for pushing the airbag (4) to slide along the unloading rack (32).

8. The protective fabric device for a vehicle airbag according to claim 5, characterized in that, Both ends of the rotating ring block (863) are provided with guide arc surfaces.

9. A method for covering a protective cloth using the protective cloth covering device for a vehicle airbag according to any one of claims 1-8, characterized in that, Includes the following steps: S1, Loading: The protective cloth (5) placed on the loading platform (6) is moved to the folding platform (21) by the loading moving assembly, and the safety airbag (4) placed on the loading rack (31) is moved to the folding platform (21) by the airbag moving assembly. The protective cloth (5) is located between the folding platform (21) and the safety airbag (4). S2, Assembly: The protective cloth (5) placed on the folding table (21) and the airbag (4) are positioned by the folding positioning fixture. The protective cloth (5) is folded by the folding assembly and the folding positioning fixture, so that the protective cloth (5) is assembled on the airbag (4). S3, Unloading: The airbag (4) equipped with protective cloth (5) located on the folding table (21) is moved to the unloading rack (32) by the airbag moving assembly.

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