Protective cloth wrapping device and protective cloth wrapping method for automotive safety air bag

Abstract

The invention relates to a protective cloth wrapping device and method for a vehicle safety air bag, and belongs to the technical field of safety air bag protective cloth wrapping, the protective cloth wrapping device comprises a material carrying mechanism, a folding mechanism and a feeding and discharging mechanism, the material carrying mechanism comprises a material carrying table and a material carrying moving assembly, and the material carrying table is used for containing to-be-assembled protective cloth; the folding mechanism comprises a folding table and a folding assembly, a folding positioning tool is arranged on the folding table, the feeding and discharging mechanism comprises a feeding frame, a discharging frame and an air bag moving assembly, the feeding frame is used for containing the safety air bags, the carrying moving assembly moves protective cloth on the carrying table to the folding table, and the air bag moving assembly moves the safety air bags on the feeding frame to the folding table. The folding assembly is matched with the folding positioning tool to assemble the protective cloth on the safety air bag, then the safety air bag assembled with the protective cloth is moved to the discharging frame from the folding table through the air bag moving assembly, assembling of the protective cloth is completed, and the effect of improving the working efficiency of assembling the protective cloth on the safety air bag can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of airbag protective cloth, and in particular to a protective cloth wrapping device and a protective cloth wrapping method for a vehicle airbag. Background Art

[0002] Automotive airbags are a passive safety protection system that is widely used in cars to provide effective anti-collision protection for passengers. Airbags are folded and stored in multiple locations in the car, such as the dashboard, side doors, or in front of the co-pilot.

[0003] When the vehicle has not collided, the airbag is stored in a special storage box. The design and material of the storage box need to be able to withstand a certain pressure to ensure that the airbag can be quickly deployed when the vehicle collides. The airbag stored in the storage box is usually equipped with a protective cloth when not in use. The protective cloth is also called a flexible cover. It is mainly used to protect the airbag in the storage box when the airbag is not deployed, thereby improving the storage efficiency and quality of the vehicle airbag. However, in the prior art, the protective cloth is generally assembled on the compressed airbag by manual and mechanical cooperation, and the working efficiency of assembling the protective cloth on the airbag is low. Summary of the invention

[0004] In order to improve the work efficiency of assembling a protective cloth on an airbag, the present application provides a protective cloth wrapping device and a protective cloth wrapping method for a vehicle airbag.

[0005] In a first aspect, the present application provides a protective cloth device for a vehicle airbag, which adopts the following technical solution:

[0006] A protective cloth wrapping device for a vehicle airbag, used for assembling the protective cloth on a compressed airbag, comprising a loading mechanism, a folding mechanism and a loading and unloading mechanism, wherein the folding mechanism is located between the loading mechanism and the loading and unloading mechanism, the loading mechanism comprises a loading platform and a loading moving assembly, the folding mechanism comprises a folding platform and a folding assembly, a folding positioning tool is provided on the folding platform, the folding positioning tool is used for positioning the protective cloth and the airbag on the folding platform, and the loading and unloading mechanism comprises a loading rack, a unloading rack and an airbag moving assembly;

[0007] 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 table, the airbag moving assembly is used to move the airbag on the loading rack to the folding table or move the airbag from the folding table to the unloading rack, and the folding assembly cooperates with the positioning tooling to assemble the protective cloth on the airbag.

[0008] By adopting the above technical scheme, the protective cloth on the loading table is moved to the folding table by the loading moving component, and the airbag on the loading rack is moved to the folding table by the airbag moving component. In this process, the positions of the protective cloth and the airbag are limited by the folding positioning tooling, and then the folding positioning tooling can also cooperate with the folding component to assemble the protective cloth on the airbag. Finally, the airbag on the folding table is moved to the unloading rack by the airbag moving component to complete the overall process of assembling the protective cloth on the airbag. Compared with assembling the protective cloth manually, the work efficiency of assembling the protective cloth on the airbag is effectively improved, and the labor cost is reduced.

[0009] Preferably, the folding table is provided with a folding cavity adapted to the shape of the airbag, and the folding positioning tooling is provided with a plurality of pieces, and the plurality of folding positioning tooling are arranged corresponding to the outer frame of the folding cavity. The folding positioning tooling includes a positioning block slidably arranged on the folding table, and a positioning support plate is rotatably connected to the positioning block, and a positioning pin cooperating with the mounting hole on the protective cloth is slidably connected to the positioning support plate, and a positioning hole for engaging with the screw on the airbag is opened on the positioning pin, and when the protective cloth is folded and assembled on the airbag through the positioning support plate, the screw is located in the positioning hole, and the folding component is used to control the rotation of the positioning support plate.

[0010] By adopting the above technical solution, when the protective cloth is moved to the folding table through the loading and moving assembly, the positioning pins on the positioning tray pass through the mounting holes on the protective cloth to complete the positioning of the protective cloth, and then the airbag placed on the protective cloth will fall into the folding cavity. During this process, the positioning pins will move toward the folding cavity under the action of the pulling force of the protective cloth, and then the positioning tray can be driven by the folding assembly to rotate until the screw on the airbag is embedded in the positioning hole to complete the folding and assembly of the protective cloth. This process does not require manual cooperation, which improves the work efficiency of assembling the protective cloth on the airbag, and the protective cloth is in a flat state during the assembly process, which improves the quality of the protective cloth assembly. In addition, with the cooperation of the positioning holes on the positioning pins and the screw on the airbag, the reliability of assembling the protective cloth by rotating the positioning tray is improved.

[0011] Preferably, the folding assembly includes a folding frame, a folding frame is slidably connected to the folding frame, a clamping cylinder is provided on the folding frame, a clamping block cooperating with the clamping cylinder is rotatably connected to the positioning support plate, and a folding sliding assembly for driving the folding frame to slide is provided on the folding frame.

[0012] By adopting the above technical solution, with the cooperation of the clamping block and the clamping cylinder, it is convenient to control the rotation of the positioning support plate, so that the folding and assembly of the protective cloth can be completed conveniently.

[0013] Preferably, a side of the folding frame facing away from the clamping cylinder is slidably connected with a ejector pin, and the ejector pin is used to limit the movement of the protective cloth in a direction away from the folding table.

[0014] By adopting the above technical solution and setting the ejector pin, when the positioning plate rotates in a 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 on the airbag through the rotation of the positioning plate.

[0015] Preferably, the folding table includes a fixed disk and a rotating disk, the rotating disk is rotatably arranged on the fixed disk, and the fixed disk is provided with a rotating member for driving the rotating disk to rotate, and after the rotating disk rotates, the clamping block on any positioning tray corresponds to the clamping cylinder.

[0016] By adopting the above technical solution, the rotating disk is rotatably arranged on the fixed disk under the action of the rotating member, so that the clamping block on any positioning tray can correspond to the clamping cylinder through the rotation of the rotating disk, and then the positioning tray can be driven to rotate through the cooperation of the clamping cylinder and the clamping block. Then, the same clamping cylinder can complete the assembly of the four sides of the protective cloth, saving the space required for the device.

[0017] Preferably, the folding frame is also slidably connected with a pressure block corresponding to the folding cavity, and the folding cavity is slidably connected with a control block. 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 cooperates with the control block to allow the airbag to be stored in the folding cavity. The pressure block includes a fixed block and a rotating ring block, and the fixed block is provided with a rotating groove for the rotating block to rotate.

[0018] By adopting the above technical solution, with the cooperation of the pressing block and the control block, it is easy to control the airbag to move and embed it into the folding cavity, thereby facilitating subsequent operations; with the cooperation of the rotating ring block and the fixed block, during the rotation of the rotating disk, the pressing block can still maintain a state of being in contact with the airbag, and with the cooperation of the pressing block and the control block, the protective cloth can remain flat during the folding process, thereby improving the quality of assembling the protective cloth on the airbag.

[0019] 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, the upper plate and the lower plate both slide along the length direction of the loading platform, and a sliding control component for driving the upper plate and the lower plate to slide is provided on the loading platform;

[0020] The end surface of the upper plate facing away from the lower plate is provided with a tooling plate 1, and the lower plate is slidably connected with a tooling plate 2. Both the tooling plate 1 and the tooling plate 2 are used for placing protective cloth. The lower plate is provided with a loading piece for controlling the tooling plate 2 to slide in the vertical direction, and the tooling plate 2 can slide to be flush with the tooling plate 1 or to fit with the lower plate.

[0021] By adopting the above technical scheme, the loading platform is divided into a loading point and a feeding point along the length direction. When the tooling plate one is located at the loading point and the tooling plate two is located at the feeding point, the protective cloth can be grabbed from the tooling plate one through the loading moving component. When the protective cloth on the tooling plate one is used up, the tooling plate two can be controlled by the loading piece to move to fit with the lower plate. At this time, the upper plate and the lower plate can be offset and slid until the tooling plate two is located at the loading point and the tooling plate one is located at the feeding point. Then, the tooling plate two is controlled by the loading piece to move to be flush with the tooling plate one. The protective cloth can be grabbed from the tooling plate two through the loading moving component. At this time, the worker can replenish the protective cloth to be assembled on the tooling plate one, which effectively improves the loading efficiency of the protective cloth, thereby improving the work efficiency of assembling the protective cloth on the airbag.

[0022] Preferably, both the loading rack and the unloading rack are provided with a placement groove, the placement groove is used for placing the airbag and the airbag is slidably arranged in the placement groove, the unloading rack is arranged in a slide shape, and 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.

[0023] By adopting the above technical solution, the unloading cylinder provides a force for the sliding of the airbag, so that the airbag is not easily accumulated on the unloading rack, which facilitates the unloading of the airbag.

[0024] Preferably, both ends of the rotating ring block are provided with guiding arc surfaces.

[0025] By adopting the above technical solution and setting the guiding arc surface, it is convenient for the rotating arc block to move to be embedded in the rotating groove during the rotation process.

[0026] In a second aspect, the present application provides a method for wrapping a protective cloth using the above-mentioned protective cloth wrapping device for a vehicle airbag, comprising the following steps:

[0027] S1, loading: the protective cloth placed on the loading platform is moved to the folding platform by the loading moving component, and the airbag placed on the loading rack is moved to the folding platform by the airbag moving component, and the protective cloth is located between the folding platform and the airbag;

[0028] S2, assembly: the protective cloth and the airbag placed on the folding table are positioned by a positioning tool, and the protective cloth is folded by the folding assembly and the positioning tool so that the protective cloth is assembled on the airbag;

[0029] S3, unloading: the airbag moving assembly moves the safety airbag equipped with the protective cloth on the folding table to the unloading rack.

[0030] By adopting the above technical solution, the above method is combined with the protective cloth wrapping device of the vehicle airbag, so that the protective cloth can be easily assembled on the airbag. The automated device not only improves the work efficiency of assembling the protective cloth on the airbag, but also reduces the labor cost required to assemble the protective cloth on the airbag.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. The protective cloth on the loading platform is moved to the folding platform by the loading moving component, and the airbag on the loading rack is moved to the folding platform by the airbag moving component. In this process, the positions of the protective cloth and the airbag are limited by the folding positioning tooling, and then the folding positioning tooling can also cooperate with the folding component to assemble the protective cloth on the airbag. Finally, the airbag on the folding platform is moved to the unloading rack by the airbag moving component to complete the overall process of assembling the protective cloth on the airbag. Compared with assembling the protective cloth manually, the work efficiency of assembling the protective cloth on the airbag is effectively improved, and the labor cost is reduced;

[0033] 2. The loading platform is divided into a loading point and a feeding point along the length direction. When the tooling plate one is located at the loading point and the tooling plate two is located at the feeding point, the protective cloth can be grabbed from the tooling plate one through the loading moving component. When the protective cloth on the tooling plate one is used up, the tooling plate two can be controlled by the loading part to move to fit with the lower plate. At this time, the upper plate and the lower plate can be offset and slid until the tooling plate two is located at the loading point and the tooling plate one is located at the feeding point. The tooling plate two is then controlled by the loading part to move to be flush with the tooling plate one. The protective cloth can be grabbed from the tooling plate two through the loading moving component. At this time, the worker can replenish the protective cloth to be assembled on the tooling plate one, which effectively improves the feeding efficiency of the protective cloth, thereby improving the work efficiency of assembling the protective cloth on the airbag. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0035] Figure 2 It is a top view of the overall structure in the embodiment of the present application.

[0036] Figure 3 It is a schematic diagram of the protective cloth structure in an embodiment of the present application.

[0037] Figure 4 It is a schematic diagram of the structure of the airbag in the embodiment of the present application.

[0038] Figure 5 It is a schematic diagram of the structure of the loading platform in the embodiment of the present application.

[0039] Figure 6 It is a schematic diagram of the sliding structure of the upper plate and the lower plate in the embodiment of the present application.

[0040] Figure 7 It is a schematic diagram of the structure of the loading rack and the unloading rack in the embodiment of the present application.

[0041] Figure 8 It is a schematic diagram of the structure of the loading rack and the moving rack in the embodiment of the present application.

[0042] Fig. 9 It is a top view of the folding table in the embodiment of the present application.

[0043] Fig.10 yes Fig. 9 AA section view in.

[0044] Fig.11 It is a schematic diagram of the folding component structure in an embodiment of the present application.

[0045] Explanation of the reference numerals: 1. Loading mechanism; 11. Loading rack; 111. Screw rod; 112. Guide tube; 12. Loading frame; 121. Suction cup; 122. Cylinder with material; 2. Folding mechanism; 21. Folding table; 211. Folding chamber; 212. Control block; 213. Folding cylinder; 22. Fixed plate; 221. Gear; 222. Rotating motor; 23. Rotating plate; 231. Gear ring; 24. Limiting member; 3. Loading and unloading mechanism; 31. Loading rack; 311. Placement slot; 312. Limiting slot; 32. Unloading rack; 321. Unloading cylinder; 33. Moving rack; 331. Moving frame; 332. Two-way cylinder; 333. Limiting block; 334. Moving cylinder; 4. Safety airbag; 41. Screw rod; 5. Safety airbag Protective cloth; 51, mounting hole; 6, loading platform; 61, upper plate; 611, tooling plate one; 62, lower plate; 621, tooling plate two; 622, loading cylinder; 63, conveyor pulley; 631, conveyor belt; 64, slide rail; 7, positioning seat; 71, slideway; 711, fixing pin; 72, positioning block; 73, positioning support plate; 731, positioning pin; 732, positioning hole; 733, positioning slide; 734, clamping block; 8, folding frame; 81, folding frame; 811, clamping cylinder; 82, X-axis travel assembly; 83, Y-axis travel assembly; 84, Z-axis travel assembly; 85, ejector pin; 851, limit cylinder; 86, pressure block; 861, pressing cylinder; 862, fixing block; 863, rotating ring block. DETAILED DESCRIPTION

[0046] The following is combined with Figure 1-11 This application is described in further detail.

[0047] The present application embodiment discloses a protective cloth device for a vehicle airbag, which is used to assemble a protective cloth 5 on a compressed airbag 4. Figure 1 and Figure 2 , including a loading mechanism 1, a folding mechanism 2 and a loading and unloading mechanism 3. The loading mechanism 1, the folding mechanism 2 and the loading and 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 and unloading mechanism 3.

[0048] Reference Figure 3 and Figure 4 , the compressed airbag 4 is arranged in a rectangular parallelepiped shape as a whole, and four screws 41 for assembly with other parts are arranged at the top of the airbag 4, so that the protective cloth 5 to be assembled is arranged in a cross shape, and the four ends of the protective cloth 5 away from the center are provided with mounting holes 51 for the screws 41 to pass through. During the assembly process 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 located on the same straight line, and then the four ends of the protective cloth 5 are folded toward the airbag 4 at one time so that the screws 41 pass through the mounting holes 51 to complete the assembly of the protective cloth 5. Since the airbag 4 in the present application is arranged in a rectangular parallelepiped shape, the distances between the two adjacent ends of the protective cloth 5 and the center of the protective cloth 5 are inconsistent, and the distances between the two opposite ends of the protective cloth 5 and the center line of the protective cloth 5 are consistent, so that the shapes of the mounting holes 51 on the two adjacent ends of the protective cloth 5 are inconsistent, which makes it easy to distinguish the long side and the short side of the protective cloth 5.

[0049] Reference Figure 1 , Figure 2 and Figure 5 The loading mechanism 1 includes a 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 direction of the loading platform 6. A sliding control component is provided on the loading platform 6 for driving the upper plate 61 and the lower plate 62 to slide.

[0050] Reference Figure 5 and Figure 6The sliding control assembly includes a conveyor pulley 63 rotatably arranged on the loading platform 6. The conveyor pulley 63 is located between the upper plate 61 and the lower plate 62 in the vertical direction. There are six conveyor pulleys 63, which are connected by a conveyor belt 631. The conveyor belt 631 is slidably arranged on the loading platform 6. The six conveyor pulleys 63 are divided into two groups and are respectively arranged at the two ends of the loading platform 6. Among the three conveyor pulleys 63 located at the same end, two conveyor pulleys 63 are located in the same straight line in the vertical direction, and the other conveyor pulley 63 is located between the other two conveyor pulleys 63 in the vertical direction, and is closer to the middle section of the loading platform 6 in the horizontal direction. A loading motor is fixed on the loading platform 6, and the output shaft of the loading motor is coaxially fixed with one of the conveyor pulleys 63. The conveyor pulley 63 can be driven to rotate by the loading motor, so that the conveyor belt 631 can slip relative to the loading platform 6.

[0051] Reference Figure 6 The upper plate 61 and the lower plate 62 are fixed to the conveyor belt 631 at the corresponding positions, and the upper plate 61 and the lower plate 62 are respectively located at the two ends of the loading platform 6. When any one of the conveyor pulleys 63 rotates, the upper plate 61 and the lower plate 62 can slide toward or away from each other under the action of the belt transmission. The bottom of the upper plate 61 and the lower plate 62 are provided with a slide groove, and the loading platform 6 is provided with a slide rail 64 that cooperates with the slide groove. With the cooperation of the slide rail 64 and the slide groove, the friction between the upper plate 61 or the lower plate 62 and the loading platform 6 when sliding on the loading platform 6 is reduced, thereby improving the stability of the upper plate 61 or the lower plate 62 when sliding on the loading platform 6.

[0052] Reference Figure 1 and Figure 5 A tooling disc 1 611 is fixedly provided on the end surface of the upper plate 61 facing away from the lower plate 62, and a tooling disc 2 621 is slidably connected to the lower plate 62. Both the tooling disc 1 611 and the tooling disc 2 621 are used to place the protective cloth 5. Both the tooling disc 1 611 and the tooling disc 2 621 are fixedly provided with mounting blocks, and the mounting blocks cooperate with the mounting holes 51 on the protective cloth 5 to position the protective cloth 5 on the tooling disc 1 611 or the tooling disc 2 621; a loading part for controlling the tooling disc 2 621 to slide in the vertical direction is provided on the lower plate 62. In the embodiment of the present application, the loading part is a loading cylinder 622, and the piston rod of the loading cylinder 622 is fixed to the end surface of the lower plate 62 facing away from the tooling disc 2 621, and the tooling disc 2 621 can slide to be flush with the tooling disc 1 611 or fit with the lower plate 62.

[0053] The loading platform 6 is divided into a loading point and a replenishing point along the length direction. When the tool tray 1 611 is located at the loading point and the tool tray 2 621 is located at the replenishing point, the worker can place the protective cloth 5 to be replenished on the tool tray 2 621 at the replenishing point. When the protective cloth 5 on the tool tray 1 611 is used up, the loading cylinder 622 is started, so that the tool tray 2 621 slides down to fit with the end surface of the lower plate 62 under the action of the loading cylinder 622, and then the loading motor and the loading cylinder 622 are started again, so that the tool tray 1 611 slides toward the replenishing point. The tooling plate 621 is shifted and slides toward the loading point, and the protective cloth 5 on the tooling plate 621 is not easy to collide with the upper plate 61; when the tooling plate 621 slides to the loading point, the loading cylinder 622 is started again, so that the tooling plate 621 slides to be flush with the tooling plate 1 611; with the cooperation of the tooling plate 1 611 placed on the upper plate 61 and the tooling plate 2 621 set on the lower plate 62, the feeding efficiency of the protective cloth 5 is effectively improved, thereby improving the work efficiency of assembling the protective cloth 5 on the airbag 4.

[0054] 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, and 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 located at a high end and is also provided with a unloading cylinder 321. The unloading cylinder 321 is located in the placement groove 311. Through the setting of the unloading cylinder 321, the airbag 4 equipped with the protective cloth 5 placed on the unloading rack 32 can slide along the unloading rack 32, which is convenient for unloading.

[0055] 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 table 21. The loading component includes a loading frame 11, and a loading frame 12 is slidably connected to the loading frame 11, and 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, and the airbag moving component 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 airbag moving component includes a moving rack 33. In the embodiment of the present application, the moving rack 33 is integrally formed with the loading rack 11, and a moving frame 331 is slidably connected to the moving rack 33, and the moving frame 331 slides along the length direction of the moving rack 33.

[0056] Reference Figure 8The loading frame 11 and the moving frame 33 are both rotatably connected with a screw rod 111, and the loading frame 12 and the moving frame 331 are provided with a moving through hole that threadably cooperates with the screw rod 111, and a moving motor is provided at one end of the screw rod 111, and the output shaft of the moving motor is coaxially fixed with the screw rod 111, and the moving motor is fixed to the corresponding loading frame 11 or the moving frame 33; a guide tube 112 is also fixedly provided on the loading frame 11 and the moving frame 33, and a guide through hole that cooperates with the guide tube 112 is provided on the loading frame 12 and the moving frame 331. When the moving motor is started, the loading frame 12 and the moving frame 331 can slide along the length direction of the screw rod 111 under the action of the threaded transmission, and the guide tube 112 cooperates with the guide through hole to improve the stability of the loading frame 12 and the moving frame 331 during the sliding process.

[0057] Reference Figure 8 There are five suction cups 121 slidably connected to the loading 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 used in conjunction with the suction cups 121 is provided on the loading frame 12. A material-carrying cylinder 122 for controlling the sliding of the suction cups 121 is fixed on the loading frame 12. The piston rod of the material-carrying cylinder 122 is coaxially fixed with the suction cup 121. A two-way cylinder 332 is slidably connected to the moving frame 331, and the two-way cylinder 332 slides in the vertical direction. A moving cylinder 334 is provided on the moving frame 331 for controlling the sliding of the two-way cylinder 332. The piston rod of the moving cylinder 334 is fixed to the two-way cylinder 332. The piston rods at both ends of the two-way cylinder 332 are fixedly connected with limit blocks 333 arranged in a semicircular arc shape. Limit grooves 312 cooperating with the limit blocks 333 are provided on the loading rack 31 and the unloading rack 32. The limit grooves 312 are connected with the placement grooves 311. The limit grooves 312 on the loading rack 31 and the unloading rack 32 are located in the same straight line. With the cooperation of the two-way cylinder 332 and the limit blocks 333, the airbag 4 on the loading rack 31 can be clamped, or the airbag 4 equipped with the protective cloth 5 can be placed on the unloading rack 32.

[0058] Reference Figure 1 , Figure 2 and Fig. 9 The folding mechanism 2 includes a folding table 21, on which a folding cavity 211 is provided. A limiter 24 can be provided on the folding table 21 so that the size of the opening of the folding cavity 211 is adapted to the airbag 4. The limiter 24 provides guidance for the sliding of the airbag 4 toward the folding cavity 211, so that the folding table 21 is suitable for airbags 4 of different models, which improves the application range of the protective cloth 5 device to a certain extent.

[0059] Reference Fig. 9 and Fig.10The folding table 21 includes a fixed disk 22 and a rotating disk 23. The fixed disk 22 is fixed to the working surface by a support leg. The fixed disk 22 and the rotating disk 23 are coaxially arranged and the rotating disk 23 is rotatably arranged on the fixed disk 22. The folding chamber 211 passes through the rotating disk 23. A rotating member for driving the rotating disk 23 to rotate is provided on the fixed disk 22. In the embodiment of the present application, the rotating member includes a ring gear 231, and the ring gear 231 is coaxially fixed with the end surface of the rotating disk 23 facing the fixed disk 22. A gear 221 meshing with the ring gear 231 is rotatably connected to the fixed disk 22. A rotating motor 222 is fixed on the fixed disk 22 for driving the gear 221 to rotate. The output shaft of the rotating motor 222 is coaxially fixed with the gear 221. After starting the rotating motor 222, the rotating disk 23 can be rotated under the action of the gear 221.

[0060] Reference Fig. 9 and Fig.10 The rotating disk 23 is provided with a folding and positioning tool, which is used to position the protective cloth 5 and the airbag 4 on the folding table 21. There are multiple folding and positioning tools. Since the number of folding and positioning tools is adapted to the shape of the protective cloth 5, in the embodiment of the present application, there are four folding and positioning tools, and the four folding and positioning tools correspond to the four end faces of the folding cavity 211 respectively. The folding and positioning tool 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 arranged 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 slideway 71 for the positioning block 72 to slide. By setting the slideway 71, the distance between the positioning block 72 and the folding cavity 211 can be adjusted, so that the folding and positioning tool can adapt to protective cloths 5 of different sizes, thereby improving the scope of application of the device for wrapping the protective cloth 5. A fixing pin 711 is also threadedly connected to the side wall of one side of the slideway 71 , and the fixing pin 711 can be rotated to separate from or press against the positioning block 72 . When the fixing pin 711 is rotated to press against the positioning block 72 , the sliding of the positioning block 72 relative to the positioning seat 7 is locked.

[0061] Reference Fig. 9 and Fig.10 The positioning block 72 is rotatably connected to a positioning support plate 73, the rotation axis of which is parallel to the outer frame of the corresponding folding chamber 211, and the positioning support plate 73 is slidably connected to a positioning pin 731 that matches the mounting hole 51 on the protective cloth 5. When the protective cloth 5 is placed on the folding table 21, the positioning pin 731 on the positioning support plate 73 passes through the corresponding mounting hole 51 on the protective cloth 5 to complete the loading of the protective cloth 5. The positioning support plate 73 is provided with a positioning slot 733 for the positioning pin 731 to slide, and a return spring is also provided in the positioning support plate 73, one end of which is fixed to the inner wall of the positioning slot 733, and the other end of which is fixed to the positioning pin 731. The return spring is used to push the positioning pin 731 to slide in a direction away from the folding chamber 211.

[0062] Reference Fig. 9 and Fig.10 The locating pin 731 is provided with a locating hole 732 for engaging the screw 41 on the airbag 4. When the protective cloth 5 is folded and assembled on the airbag 4 through the locating support plate 73, the screw 41 is located in the locating hole 732. The locating hole 732 on the locating pin 731 cooperates with the screw 41 to provide positioning for the rotation of the locating support plate 73 and the folding of the protective cloth 5. When the locating support plate 73 rotates in a direction away from the airbag 4, the protective cloth 5 on the locating support plate 73 can slide along the locating pin 731 to be assembled on the airbag 4, which is convenient for assembling the protective cloth 5 on the airbag 4, and to a certain extent improves the work efficiency of assembling the protective cloth 5 on the airbag 4.

[0063] Reference Figure 1 and Fig.11 The folding mechanism 2 further includes a folding assembly, which is used to control the rotation of the positioning support plate 73. The protective cloth 5 can be assembled on the airbag 4 by rotating the positioning support plate 73. The folding assembly includes a folding frame 8. In order to save space, the folding frame 8 and the loading frame 11 are arranged on both sides of the axis of the folding table 21. A folding frame 81 is slidably connected to the folding frame 8. A folding sliding assembly for driving the folding frame 81 to slide is fixed on the folding frame 8. Fig.11 As shown, the folding and sliding assembly includes an X-axis walking assembly 82, a Y-axis walking assembly 83 and a Z-axis walking assembly 84 that cooperate with each other. The Y-axis walking assembly 83 can slide along the length direction of the X-axis walking assembly 82 under the action of the X-axis walking assembly 82, and the Z-axis walking assembly 84 can slide along the length direction of the Y-axis walking assembly 83 under the action of the Y-axis walking assembly 83. The folding frame 81 can slide along the length direction of the Z-axis walking assembly 84 under the action of the Z-axis walking assembly 84. The folding frame 81 can slide in three directions of X-axis, Y-axis and Z-axis under the action of the folding and sliding assembly.

[0064] Reference Fig.11 The folding frame 81 is fixedly provided with a clamping cylinder 811, and the positioning support plate 73 is rotatably connected with a clamping block 734 that cooperates with the clamping cylinder 811. After the clamping block 734 is clamped by the clamping cylinder 811, the positioning support plate 73 can be driven to rotate until the screw 41 is embedded in the positioning hole 732 through the sliding of the folding frame 81. A rotating rod for rotating the clamping block 734 is provided on the positioning support plate 73, and a rotating through hole for the rotating rod to pass through is opened on the clamping block 734. A rotating torsion spring is sleeved on the rotating rod, and one end of the rotating torsion spring is tightly pressed against the clamping block 734, and the other end of the rotating torsion spring is tightly pressed against the positioning support plate 73. The setting of the rotating torsion spring facilitates the resetting of the clamping block 734 after rotation.

[0065] Reference Fig.11The side of the folding frame 81 away from the clamping cylinder 811 is also slidably connected with a pin 85. The folding frame 81 is provided with a limit cylinder 851 for driving the pin 85 to slide. Through the setting of the pin 85, when the positioning support plate 73 rotates in a direction 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 limited by the pin 85, thereby improving the reliability of assembling the protective cloth 5 on the airbag 4 through the rotation of the positioning support plate 73. After the rotating disk 23 rotates, the clamping block 734 on any positioning support plate 73 can be located below the clamping cylinder 811. Through the rotation of the rotating disk 23, the rotation of the four positioning support plates 73 can be controlled in sequence, so that the protective cloth 5 is completely assembled on the folding table 21.

[0066] Reference Figure 1 and Fig.11 The folding frame 8 is also slidably connected with a pressure block 86 corresponding to the folding chamber 211. The pressure block 86 is located on the center line of the folding chamber 211 and can slide along the center line of the folding chamber 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 in the folding chamber 211, and the control block 212 can slide toward the direction of 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, and the piston rod of the folding cylinder 213 is rotatably connected to the control block 212.

[0067] Before the protective cloth 5 is loaded, the control block 212 is first moved to be flush with the surface of the folding table 21 under the action of the folding cylinder 213, until the airbag 4 is moved to the folding table 21 under the action of the airbag moving assembly, and then the pressing block 86 is first moved to fit with the airbag 4 under the action of the pressing cylinder 861, and then the pressing 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 slide groove 733 under the action of the protective cloth 5.

[0068] Reference Fig.11 During the rotation of the positioning support plate 73 and the rotation of the rotating disk 23, the pressing block 86 is kept in contact with the airbag 4. The pressing block 86 includes a fixed block 862 and a rotating ring block 863. The fixed block 862 is provided with a rotation groove for the rotating ring block 863 to rotate. The rotating ring block 863 is located at one end of the fixed block 862 facing the folding cavity 211. The rotating ring block 863 is in contact with the end surface of the airbag 4. The setting of the fixed block 862 and the rotating ring block 863 makes it difficult for the pressing 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. The setting of the guide arc surfaces facilitates the rotating arc block to move to the embedded rotation groove during the rotation process.

[0069] The embodiment of the present application also discloses a method for wrapping a protective cloth using the above-mentioned vehicle airbag 4 vehicle airbag wrapping protective cloth device, and the specific steps are as follows:

[0070] S1, loading: in the initial state, the loading frame 12 corresponds to the loading point of the loading platform 6, and the suction cup 121 is first controlled by the material cylinder 122 to move to fit the protective cloth 5 on the loading platform 6. After the suction cup 121 cooperates with the vacuum generator to grab the protective cloth 5 on the loading platform 6, the protective cloth 5 is controlled by the material cylinder 122 to move to separate from the loading platform 6, and then the loading frame 12 is controlled to move to above the folding table 21, and the suction cup 121 is controlled by the material cylinder 122 to move until the positioning pin 731 passes 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, and the loading of the protective cloth 5 is completed;

[0071] The movable frame 331 is moved to the top of the loading rack 31, and the limit blocks 333 on both sides of the two-way cylinder 332 are slid to the two sides of the loading rack 31 under the action of the movable cylinder 334, and then the two-way cylinder 332 is started, and the airbag 4 on the loading rack 31 is clamped with the cooperation of the limit blocks 333, and then the two-way cylinder 332 is controlled by the movable cylinder 334 to move until the airbag 4 is separated from the loading rack 31, and then the movable frame 331 is controlled to move to the top of the folding table 21, and then the movable cylinder 334 is used to control the airbag 4 to be placed on the protective cloth 5 on the folding table 21, and the loading of the airbag 4 is completed.

[0072] In addition, the pressure block 86 and the control block 212 cooperate with each other so that the airbag 4 placed on the folding table 21 can slide to be stored in the folding cavity 211, thus completing the preparation work before folding the protective cloth 5.

[0073] S2. Assembly: The clamping cylinder 811 on the folding frame 81 is driven by the folding sliding assembly to move until it can cooperate with the clamping block 734. After the clamping block 734 is clamped by the clamping cylinder 811, the positioning support plate 73 is driven to rotate until the screw 41 on the airbag 4 is embedded in the positioning hole 732 on the positioning pin 731 under the action of the folding sliding assembly. Then, the positioning support plate 73 is driven by the folding sliding assembly to rotate until it is placed on the positioning block 72. During this process, the ejector pin 85 is driven by the limit cylinder 851 to slide to fit the protective cloth 5; then the rotating motor 222 is started to rotate the rotating disk 23 to another folding positioning tool corresponding to the folding frame 81. During this process, the pressing block 86 remains in a state of fitting with the airbag 4. The above operation is repeated until the protective cloth 5 is completely assembled on the airbag 4.

[0074] Before unloading, the pressing block 86 in contact with 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 until the airbag 4 is outside the folding cavity 211, so as to facilitate the subsequent unloading operation.

[0075] S3, unloading: move the moving frame 331 to the top of the folding table 21, and under the action of the moving cylinder 334, make the limit blocks 333 on both sides of the two-way cylinder 332 slide to the two sides of the airbag 4 equipped with the protective cloth 5, and then start the two-way cylinder 332, clamp the airbag 4 with the cooperation of the limit blocks 333, and then control the two-way cylinder 332 to move to separate the airbag 4 from the folding table 21 through the moving cylinder 334, and then control the moving frame 331 to move to the top of the unloading rack 32, and then control the airbag 4 to be placed on the unloading rack 32 through the moving cylinder 334, and start the unloading cylinder 321, so that the airbag 4 slides along the unloading rack 32 to complete the unloading.

[0076] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A protective cloth device for a vehicle airbag, used for assembling a protective cloth (5) on a compressed airbag (4), It is characterized in that The invention comprises a loading mechanism (1), a folding mechanism (2) and a loading and unloading mechanism (3), wherein the folding mechanism (2) is located between the loading mechanism (1) and the loading and unloading mechanism (3), the loading mechanism (1) comprises a loading platform (6) and a loading moving assembly, the folding mechanism (2) comprises a folding platform (21) and a folding assembly, a folding positioning tool is provided on the folding platform (21), the folding positioning tool is used to position the protective cloth (5) and the safety airbag (4) on the folding platform (21), and the loading and unloading mechanism (3) comprises a loading rack (31), a unloading rack (32) and an airbag moving assembly; 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 safety airbag (4), the loading moving component is used to move the protective cloth (5) on the loading platform (6) to the folding platform (21), the airbag moving component is used to move the safety airbag (4) on the loading rack (31) to the folding platform (21) or to move the safety airbag (4) from the folding platform (21) to the unloading rack (32), and the folding component cooperates with the folding positioning tooling to assemble the protective cloth (5) on the safety airbag (4).

2. The protective cloth device for a vehicle airbag according to claim 1, It is characterized in that The folding table (21) is provided with a folding cavity (211) adapted to the shape of the airbag (4), the folding positioning tooling comprises a plurality of pieces, and the plurality of pieces of the folding positioning tooling are arranged corresponding to the outer frame of the folding cavity (211), the folding positioning tooling comprises a positioning block (72) slidably arranged on the folding table (21), the positioning block (72) is rotatably connected to a positioning support plate (73), the positioning support plate (73) is slidably connected to a positioning pin (731) matched with a mounting hole (51) on the protective cloth (5), the positioning pin (731) is provided with a positioning hole (732) for engaging with a screw rod (41) on the airbag (4), when the protective cloth (5) is folded and assembled on the airbag (4) through the positioning support plate (73), the screw rod (41) is located in the positioning hole (732), and the folding assembly is used to control the rotation of the positioning support plate (73).

3. The protective cloth device for a vehicle airbag according to claim 2, It is characterized in that The folding assembly comprises 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) cooperating with the clamping cylinder (811) is rotatably connected to the positioning support plate (73), and a folding sliding assembly for driving the folding frame (81) to slide is provided on the folding frame (8).

4. The protective cloth device for a vehicle airbag according to claim 3, It is characterized in that A side of the folding frame (81) facing away from the clamping cylinder (811) is slidably connected to a push pin (85), and the push pin (85) is used to limit the movement of the protective cloth (5) in a direction away from the folding table (21).

5. The protective cloth device for a vehicle airbag according to claim 3, It is characterized in that The folding table (21) comprises a fixed disk (22) and a rotating disk (23). The rotating disk (23) is rotatably arranged on the fixed disk (22). A rotating member for driving the rotating disk (23) to rotate is provided on the fixed disk (22). When the rotating disk (23) rotates, a clamping block (734) on any positioning support plate (73) corresponds to a clamping cylinder (811).

6. The protective cloth device for a vehicle airbag according to claim 5, It is 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 in the folding cavity (211); the control block (212) can slide toward the pressure block (86) until the end surface of the control block (212) is flush with the end surface of the rotating disk (23); the pressure block (86) cooperates with the control block (212) to accommodate the airbag (4) in the folding cavity (211); the pressure block (86) comprises a fixed block (862) and a rotating ring block (863); and a rotating groove for the rotating block to rotate is provided on the fixed block (862).

7. The protective cloth device for a vehicle airbag according to claim 1, It is characterized in that The material loading platform (6) is slidably connected with an upper plate (61) and a lower plate (62); the upper plate (61) is located above the lower plate (62) in the vertical direction; the upper plate (61) and the lower plate (62) both slide along the length direction of the material loading platform (6); and a sliding control component for driving the upper plate (61) and the lower plate (62) to slide is provided on the material loading platform (6); The upper plate (61) is provided with a tooling plate 1 (611) on its end surface facing away from the lower plate (62); the lower plate (62) is slidably connected with a tooling plate 2 (621); both the tooling plate 1 (611) and the tooling plate 2 (621) are used to place a protective cloth (5); the lower plate (62) is provided with a material carrier for controlling the tooling plate 2 (621) to slide in a vertical direction; the tooling plate 2 (621) can slide to be flush with the tooling plate 1 (611) or to fit with the lower plate (62).

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

9. The protective cloth device for a vehicle airbag according to claim 6, It is characterized in that Both ends of the rotating ring block (863) are provided with guiding arc surfaces.

10. A method for wrapping a protective cloth using the protective cloth wrapping device for a vehicle airbag according to any one of claims 1 to 9, It is characterized in that The following steps are involved: S1, loading: the protective cloth (5) placed on the loading platform (6) is moved onto the folding platform (21) by the loading moving component, and the safety airbag (4) placed on the loading rack (31) is moved onto the folding platform (21) by the airbag moving component, wherein the protective cloth (5) is located between the folding platform (21) and the safety airbag (4); S2, assembly: the protective cloth (5) and the safety airbag (4) placed on the folding table (21) are positioned by means of a folding positioning tool, and the protective cloth (5) is folded by means of the folding assembly and the folding positioning tool in cooperation with each other, so that the protective cloth (5) is assembled on the safety airbag (4); S3, unloading: the safety airbag (4) equipped with the 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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