An airbag folding tooling

Abstract

The present application relates to a safety airbag folding tooling, which includes a lower folding workbench for flattening the safety airbag, an upper folding workbench that slides parallel to the working end face of the lower folding workbench, a first folding assembly disposed in the middle of the upper folding workbench and the lower folding workbench for performing the first-stage folding of the safety airbag, a second folding assembly disposed on the working end face of the lower folding workbench for performing the second-stage folding of the safety airbag, a third folding assembly disposed on the working end face of the lower folding workbench and on the side of the second folding assembly away from the first folding assembly, and a drying and shaping assembly located on one side of the lower folding workbench for drying and shaping the folded safety airbag. A gap for laying and folding the safety airbag is formed between the working end faces of the mutually approaching ends of the upper folding workbench and the lower folding workbench, and a fixed socket for inserting and fixing a safety airbag holder is provided in the middle of the working end face of the lower folding workbench. The present application has the characteristics of improving the folding efficiency and the like.

Description

Technical Field

[0001] The present application relates to the technical field of airbag production equipment, and in particular to an airbag folding tool. Background Art

[0002] At present, in recent years, with the continuous increase in the number of cars, traffic accidents are also increasing, and traffic safety threatens people's lives at all times. As an auxiliary configuration of the passive safety of the car body, airbags are increasingly valued by people. There are five main types of airbags used in cars: the main driver's airbag installed in the steering wheel of the driver's seat, the co-pilot airbag installed in the co-pilot seat, the knee airbag installed on the passenger's knee, the curtain airbag installed on the upper side of the door, and the side airbag installed on the side of the head. These airbags need to be installed in a special cavity and inflate when the car is in danger to protect the safety of the passengers.

[0003] There is a method for folding an airbag cushion, which comprises the following steps: in a first stage, the lower portion of the lower airbag cushion is folded upward at least once based on a retainer to form a lower tucked portion; in a second stage, the upper portion of the airbag cushion is folded downward at least once and the lower tucked portion is folded upward at least once; in a third stage, the folded upper portion is folded downward at least once to be arranged on the front side of the retainer; and in a fourth stage, the folded lower tucked portion is folded upward at least once to be arranged on the front side of the upper portion arranged on the front side of the retainer, so that the lower tucked portion and the upper portion overlap.

[0004] This folding method has many steps when folding the airbag, resulting in low overall production efficiency. Summary of the invention

[0005] In order to improve the folding efficiency of an airbag, the present application provides an airbag folding tool.

[0006] The above-mentioned purpose of the present application is achieved through the following technical solutions:

[0007] An airbag folding tooling, comprising a lower folding workbench for laying the airbag flat, an upper folding workbench sliding parallel to the working end face of the lower folding workbench, a first folding assembly arranged in the middle of the upper folding workbench and the lower folding workbench for folding the airbag in the first stage, a second folding assembly arranged on the working end face of the lower folding workbench for folding the airbag in the second stage, a third folding assembly arranged on the working end face of the lower folding workbench and on the side of the second folding assembly away from the first folding assembly, and a drying and shaping assembly located on one side of the lower folding workbench for drying and shaping the folded airbag. A gap for laying and folding the airbag is formed between the working end faces of the mutually approaching ends of the upper folding workbench and the lower folding workbench. A fixed socket for inserting and fixing the airbag holder is arranged in the middle of the working end face of the lower folding workbench.

[0008] By adopting the above technical solution, when using this airbag folding tooling to fold the airbag, lay the airbag flat on the working end face of the lower folding workbench, then slide the upper folding workbench so that the upper folding workbench moves to the upper side of the lower folding workbench. Then start the first folding assembly to fold the airbag in the first stage, then start the second folding assembly to fold the fully inflated airbag in the second stage, and finally start the third folding assembly to fold the airbag in the third stage. After folding, move the airbag into the drying and shaping assembly for drying and shaping. The entire folding process is completed by this folding tooling, thus improving the folding efficiency of the airbag.

[0009] Preferably, the first folding assembly includes two lower folding rings vertically slidably arranged in the middle of the working end face of the lower folding workbench, and three upper folding rings vertically slidably arranged in the middle of the working end face of the upper folding workbench. The two lower folding rings are coaxially sleeved and coaxially sleeved on the peripheral side of the fixed socket. The lower folding rings are flush with the working end face of the lower folding workbench. The three upper folding rings are coaxially sleeved and coaxial with the upper folding rings and flush with the working end face of the upper folding workbench. A folding slot for inserting the lower folding rings is formed between adjacent upper folding rings.

[0010] By adopting the above technical solution, when folding the airbag through this first folding assembly, the upper folding workbench moves to the upper side of the lower folding workbench. Then the two lower folding rings move perpendicular to the lower folding workbench and protrude from the working end face of the lower folding workbench. Then the three upper folding rings move perpendicular to the upper folding workbench and protrude from the working end face of the upper folding workbench. At this time, the two lower folding rings are inserted into the folding slots among the three upper folding rings. During the folding process, the laid airbag is folded into a corrugated ring shape, thus completing the first-stage folding. In this solution, the airbag can be directly folded into a smaller volume in the first-stage folding, which is more convenient for subsequent folding, and further improves the folding efficiency.

[0011] Preferably, the second folding assembly includes a plurality of folding slide bars arranged on the working end face of the lower folding workbench. The plurality of folding slide bars are circumferentially and evenly arranged on the fixed socket. The length direction of the folding slide bar points to the axis of the fixed socket. The folding slide bar is perpendicular to the lower folding workbench and flush with the working end face of the lower folding workbench, and the folding slide bar slides along its own length direction.

[0012] By adopting the above technical solution, after the first-stage folding is completed, the upper folding ring and the lower folding ring are reset. At this time, there is still a certain gap in the folded airbag. At this time, the folding slide table moves to the upper side of the working surface of the lower folding workbench and then moves to the side of the fixed socket, so that the folding slide bar abuts against the airbag that has completed the first-stage folding and compresses it towards the middle. This solution enables the first-stage compression to continue after the original first-stage compression, further reducing the volume of the airbag, thereby improving the folding effect of the airbag.

[0013] Preferably, the third folding assembly includes two tightening plates slidably arranged on the working end face of the lower folding workbench. The two tightening plates are parallel to each other and located on both sides of the fixed socket. On the end faces close to each other and on the side far from each other of the two tightening plates, tightening blocks are provided. On the end faces of the two tightening blocks close to each other along the length direction of the tightening plate, tightening grooves for buckling and tightening the airbag are provided.

[0014] By adopting the above technical solution, after the second-stage folding is completed, the folding slide bar is reset. Subsequently, the two tightening plates move towards the middle side of the fixed socket until the two tightening blocks tighten the airbag in the tightening groove, thereby completing the third-stage folding. This solution can further fold the airbag, thereby reducing the volume of the folded airbag.

[0015] Preferably, the drying and shaping assembly includes a drying table supported on the ground, a drying seat arranged on the upper end face of the drying table, and a drying air head vertically slidably arranged above the drying seat. A drying cavity that is vertically opened in the middle of the drying seat and through which the folded airbag and the drying air head can be inserted is provided. A lower leakage hole aligned with the drying cavity is opened on the upper end face of the drying table. A receiving plate for the airbag to fall into is arranged below the lower leakage hole of the drying table.

[0016] By adopting the above technical solution, after all three-stage folding is completed, the folded airbag is placed into the drying cavity. Subsequently, the drying air head is vertically moved so that the drying air head is vertically inserted into the drying cavity, thereby blowing high-temperature hot air into the drying cavity. On the one hand, the moisture on the surface of the airbag can be dried, and on the other hand, the folded airbag can be shaped. After the drying and shaping are completed, it then drops from the drying cavity, passes through the lower leakage hole, and lands on the receiving plate. This solution enables the airbag to be quickly shaped after being compressed, thus facilitating the installation of subsequent processes and the like.

[0017] Preferably, there are two groups of the drying seats. The connection line of the two groups of the drying seats points to the lower folding workbench. The two groups of the drying seats are slidably connected to the drying table, and the sliding direction is parallel to the lower folding workbench. A clamping assembly for clamping the airbag and sequentially placing it into the two drying cavities is arranged at the side end of the drying table.

[0018] By adopting the above technical solution, the drying seats are arranged in two groups, so that when one group is drying, the folded airbag can be placed into the other group of drying seats for drying, thereby enabling the folded airbags to be dried in a timely manner, further improving the folding efficiency. At the same time, the clamping assembly sequentially clamps and places the airbag into the drying cavity to ensure more orderliness.

[0019] Preferably, the clamping assembly includes a clamping frame arranged horizontally and a material taking head slidably connected to the clamping frame. A material taking hole for sucking air upward is opened at the lower end of the material taking head.

[0020] By adopting the above technical solution, the clamping assembly sucks air at the material taking hole of the material taking head, thereby adsorbing the folded airbag, thus reducing the probability of damaging the airbag during the process of moving the airbag.

[0021] Preferably, there are flattening components on the working end faces of the lower folding workbench and the upper folding workbench. Smooth flattening grooves are evenly opened on the working end faces of the lower folding workbench and the upper folding workbench around the fixed socket. The length direction of the smooth flattening grooves points to the axis of the fixed socket. The flattening components include flattening rollers rotatably embedded in the smooth flattening grooves and moving along the length direction of the smooth flattening grooves. The flattening rollers on the lower folding workbench and the corresponding flattening rollers on the lower folding workbench rotate in opposite directions and abut against the airbag to flatten and unfold it away from the fixed socket.

[0022] By adopting the above technical solution, when the airbag is placed on the working end face of the lower folding workbench, the retainer and the fixed socket of the airbag are fixed. At this time, the directly movable upper folding workbench starts the flattening rollers before starting the first folding component, so that the flattening rollers on the upper and lower sides of the airbag abut against the upper and lower end faces of the airbag. As the flattening rollers rotate and move along the length direction of the flattening chute away from the fixed socket, the entire airbag is flattened. This solution makes it unnecessary for manual operation to flatten the airbag, which is more convenient and has higher efficiency.

[0023] Preferably, the flattening component further includes air injection holes obliquely formed between adjacent flattening chutes, and the air injection holes are obliquely oriented towards the side away from the fixed socket.

[0024] By adopting the above technical solution, the air injection holes can be started before starting the flattening rollers, so that the air injection holes on the upper and lower sides of the airbag can inject air obliquely, thereby pre-flattening the airbag, facilitating the subsequent formal flattening by the flattening rollers, improving the success rate of flattening, reducing the repeated work due to poor flattening work, being more convenient, and thus improving the folding efficiency.

[0025] Preferably, the flattening rollers on the lower folding workbench move from the side close to the fixed socket towards the side away from the fixed socket and gradually protrude out of the flattening chute, and the flattening rollers on the upper folding workbench move from the side close to the fixed socket towards the side away from the fixed socket and gradually move upwards and hide in the flattening chute.

[0026] By adopting the above technical solution, when the airbag is unfolded by the rotation of the flattening rollers, it is necessary to make the flattening rollers contact the surface of the airbag. When the flattening rollers above the lower folding workbench protrude out of the flattening chute, the airbag will be in an uneven state as soon as it is placed on the working end face of the lower folding workbench. In this solution, when the airbag is laid on the working end face of the lower folding workbench, the flattening rollers on the lower folding workbench are hidden in the flattening chute at this time, and gradually protrude out of the flattening chute as the flattening rollers move. At the same time, the flattening rollers on the upper folding workbench first protrude out of the flattening arc chute and then slide into the flattening chute, so that while completing the flattening work, it will not affect the placement of the airbag, which is more convenient.

[0027] In summary, the beneficial technical effects of the present application are as follows:

[0028] 1. When folding the airbag using this airbag folding tooling, lay the airbag flat on the working end face of the lower folding workbench. Then slide the upper folding workbench so that it moves to the upper side of the lower folding workbench. Subsequently, start the first folding component to perform the first-stage folding of the airbag, then start the second folding component to perform the second-stage folding of the complete airbag, and finally start the third folding component to perform the third-stage folding of the airbag. After the folding is completed, move the airbag into the drying and shaping component for drying and shaping. The entire folding process is completed by this folding tooling, thus improving the folding efficiency of the airbag;

[0029] 2. After all three-stage foldings are completed, place the folded airbag into the drying chamber. Then vertically move the drying air head so that the drying air head vertically inserts into the drying chamber, thereby blowing high-temperature hot air into the drying chamber. On the one hand, it can dry the moisture on the surface of the airbag, and on the other hand, it can shape the folded airbag. After the drying and shaping are completed, it then falls from the drying chamber, passes through the lower leakage hole, and lands on the receiving plate, enabling the airbag to be quickly shaped after being compressed, thus facilitating the installation of subsequent processes, etc.;

[0030] 3. First, start the air jet holes so that the air jet holes on the upper and lower sides of the airbag can jet air obliquely, thereby pre-flattening the airbag. Then start the flattening rollers so that the flattening rollers on the upper and lower sides of the airbag abut against the upper and lower end faces of the airbag. As the flattening rollers rotate and move along the length direction of the flattening chute towards the side away from the fixed socket, the entire airbag is flattened, making it unnecessary for manual flattening of the airbag, which is more convenient and has higher efficiency. Description of the Drawings

[0031] Figure 1 is a structural schematic diagram of the airbag folding tooling;

[0032] Figure 2 is a partial exploded view of the lower folding workbench and the upper folding workbench;

[0033] Figure 3 is for Figure 2 the enlarged view of part A;

[0034] Figure 4 is an exploded schematic diagram of the upper folding workbench;

[0035] Figure 5 is a structural schematic diagram of the drying and shaping component and the clamping component.

[0036] In the figure: 1. Lower folding workbench; 2. Upper folding workbench; 3. First folding component; 4. Flattening component; 5. Second folding component; 6. Third folding component; 7. Drying and shaping component; 8. Clamping component; 9. Installation groove; 10. Fixed socket; 11. Table closing cylinder; 12. Lower folding ring; 13. Upper folding ring; 14. Folding ring groove; 15. Folding slot; 16. Folding slide bar; 17. Folding chute; 18. Tightening plate; 19. Tightening block; 20. Tightening groove; 21. Flattening smooth groove; 22. Flattening roller; 23. Flattening smooth bar; 24. Air jet hole; 25. Drying table; 26. Drying seat; 27. Drying air head; 28. Moving cylinder; 29. Drying cavity; 30. Lower leakage hole; 31. Material receiving plate; 32. Clamping frame; 33. First clamping cylinder; 34. Second clamping cylinder; 35. Material taking head; 36. Material taking hole; 37. Air extraction pump. Detailed implementation mode

[0037] The following further elaborates on this application in conjunction with the attached Figures 1-5 drawings.

[0038] Refer to Figure 1 , an airbag folding tooling, including a lower folding workbench 1 for flattening the airbag, an upper folding workbench 2 that slides parallel to the working end face of the lower folding workbench 1, a first folding component 3 provided in the middle of the upper folding workbench 2 and the lower folding workbench 1 for the first-stage folding of the airbag, a flattening component 4 for flattening the airbag, a second folding component 5 provided on the working end face of the lower folding workbench 1 for the second-stage folding of the airbag, a third folding component 6 provided on the working end face of the lower folding workbench 1 and located on the side of the second folding component 5 away from the first folding component 3, a drying and shaping component 7 located on one side of the lower folding workbench 1 for drying and shaping the folded airbag, and a clamping component 8 for transporting the airbag from the lower folding workbench 1 to the drying and shaping component 7.

[0039] Refer to Figure 1 and Figure 3 , the lower folding workbench 1 is supported on the ground. The upper end face of the lower folding workbench 1 is the working end face and is inclined. A cylindrical installation groove 9 is vertically opened in the middle of the working end face of the lower folding workbench 1. A cylindrical fixed socket 10 is coaxially fixed in the middle of the installation groove 9 by bolts. The upper end face of the fixed socket 10 is flush with the working end face of the lower folding workbench 1, and the retainer of the airbag can be directly inserted into the fixed socket 10.

[0040] Refer to Figure 2, a joint cylinder 11 is fixed to the side end of the lower folding workbench 1 by bolts. The piston rod of the joint cylinder 11 is parallel to the working end face of the lower folding workbench 1. The upper folding workbench 2 is fixed to the piston rod of the joint cylinder 11 by bolts. The joint cylinder 11 can drive the upper folding workbench 2 to slide parallel to the working end face of the lower folding workbench 1 on the upper side of the lower folding workbench 1. A gap for laying and folding the airbag flat is formed between the working end faces of the upper folding workbench 2 and the lower folding workbench 1.

[0041] See Figure 3 and Figure 4 , the first folding assembly 3 includes two lower folding rings 12 and three upper folding rings 13. Both of the two lower folding rings 12 are located in the installation groove 9 and coaxially sleeved on the peripheral side of the fixed socket 10. One end of the two lower folding rings 12 is flush with one end face of the fixed socket 10. An annular gap is formed between the two folding rings. A cylinder perpendicular to the working end face of the lower folding workbench 1 is fixed inside the lower folding workbench 1 by bolts. The piston rod of the cylinder penetrates into the installation groove 9 and is fixed to one end of the lower folding ring 12 by bolts, so that the lower folding ring 12 can move perpendicular to the working end face of the lower folding workbench 1.

[0042] Three folding ring grooves 14 which are annular and coaxially sleeved are formed in the middle of the working end face of the upper folding workbench 2. The three upper folding rings 13 are respectively inserted into one folding ring groove 14. A plurality of cylinders are fixed to the upper end face of the upper folding workbench 2 by bolts. The piston rods of the cylinders respectively penetrate into the folding ring grooves 14 and are respectively fixed to the upper folding rings 13 by bolts, so that the cylinders can drive the upper folding rings 13 to move perpendicular to the working end face of the upper folding workbench 2. When the upper folding rings 13 protrude from the working end face of the upper folding workbench 2, a folding slot 15 for inserting the lower folding rings 12 is formed between two adjacent upper folding rings 13, and there is still a gap between adjacent upper folding rings 13 and lower folding rings 12 after they are inserted into each other.

[0043] The second folding assembly 5 includes a plurality of folding slide bars 16. Folding slide grooves 17 are circumferentially and evenly formed on the working end face of the lower folding workbench 1 around the installation groove 9. The length direction of the folding ring groove 14 points to the axis of the installation groove 9. The folding slide bars 16 are embedded in the folding slide grooves 17. A plurality of groups of vertical cylinders and a plurality of groups of translation cylinders are fixed inside the lower folding workbench 1 by bolts. The piston rods of the translation cylinders are parallel to the working end face of the lower folding workbench 1. The piston rods of the vertical cylinders are perpendicular to the working end face of the lower folding workbench 1. The vertical cylinders are fixed to the ends of the piston rods of the translation cylinders by bolts. The folding slide bars 16 are fixed to the ends of the piston rods of the vertical cylinders by bolts, so that the folding slide bars 16 can be hidden in the folding slide grooves 17 or protrude from the folding slide grooves 17 under the drive of the vertical cylinders, and can move along the length direction of the folding slide grooves 17 under the drive of the translation cylinders.

[0044] The third folding component 6 includes two parallel tightening plates 18, which are respectively located on both sides of the fixed socket 10. On one end face of the tightening plates 18 close to each other, tightening blocks 19 are integrally provided on the side away from each other. On one end face of the two tightening blocks 19 close to each other along the length direction of the tightening plates 18, tightening grooves 20 for buckling and tightening the airbag are provided. Both of the two tightening grooves 20 are semi-circular grooves. On both side ends of the lower folding workbench 1, there are respectively a first air cylinder for pushing the two tightening plates 18 to move parallelly to make the two tightening blocks 19 approach each other and a second air cylinder for pushing the two tightening plates 18 to approach each other. The first air cylinder is fixed to the side end of the lower folding workbench 1 by bolts, and the second air cylinder is fixed to the end of the piston rod of the first air cylinder by bolts. Both the first air cylinder and the second air cylinder are parallel to the working end face of the lower folding workbench 1. The tightening plates 18 are fixed to the end of the piston rod of the second air cylinder by bolts.

[0045] On the working end faces of the lower folding workbench 1 and the upper folding workbench 2, smoothing grooves 21 are evenly provided around the fixed socket 10. The length direction of the smoothing grooves 21 points to the axis of the fixed socket 10. The smoothing component 4 includes multiple groups of smoothing rollers 22. A smoothing strip 23 is slidably embedded in the smoothing grooves 21. In the lower folding workbench 1 and the upper folding workbench 2, smoothing air cylinders are fixed by bolts on the side away from the fixed socket 10 of the smoothing grooves 21. The smoothing strip 23 is fixed to the end of the piston rod of the smoothing air cylinder by bolts. The smoothing rollers 22 are rotatably connected to one side end of the smoothing strip 23 close to the notch of the smoothing grooves 21. The extending direction of the piston rod of the smoothing air cylinder is inclined to the length direction of the smoothing grooves 21. The smoothing rollers 22 on the lower folding workbench 1 move from the side close to the fixed socket 10 to the side away from the fixed socket 10 and gradually move upward to protrude from the smoothing grooves 21. The smoothing rollers 22 on the upper folding workbench 2 move from the side close to the fixed socket 10 to the side away from the fixed socket 10 and gradually move upward to be hidden in the smoothing grooves 21. The rotating directions of the smoothing rollers 22 on the upper folding workbench 2 and the corresponding smoothing rollers on the lower folding workbench 1 are opposite, and they abut against the airbag to smooth and unfold it to the side away from the fixed socket 10.

[0046] The smoothing component 4 further includes air jet holes 24 obliquely provided between adjacent smoothing grooves 21. The air jet holes 24 are located on the side close to the fixed socket 10 and are obliquely oriented to the side away from the fixed socket 10.

[0047] See Figure 5, the drying and shaping assembly 7 includes a drying table 25 supported on the ground, two drying seats 26 located on the upper end surface of the drying table 25, and a drying air head 27 driven by a cylinder and vertically slidably connected to the upper side of the drying seat 26. Two moving cylinders 28 are fixedly bolted to the upper end of the drying table 25. The moving cylinders 28 are horizontally arranged. The drying seat 26 is fixedly bolted to the end of the piston rod of the moving cylinder 28. A drying cavity 29 that is vertically opened in the middle of the drying seat 26 for the folded airbag and the drying air head 27 to be inserted and is in a through shape. The line connecting the two drying seats 26 points to the lower folding workbench 1. A lower leakage hole 30 aligned with the drying cavity 29 is opened on the upper end surface of the drying table 25. A receiving plate 31 for the airbag to fall into is fixedly bolted to the lower side of the drying table 25 under the lower leakage hole 30.

[0048] The clamping assembly 8 includes a clamping frame 32 horizontally fixed to the upper end of the drying table 25 by bolts, a first clamping cylinder 33 horizontally fixed to the lower end of the clamping frame 32 by bolts, a second clamping cylinder 34 vertically fixed to the end of the piston rod of the first clamping cylinder 33 by bolts, and a material taking head 35 fixed to the end of the piston rod of the second clamping cylinder 34 by bolts. A material taking hole 36 is opened in the middle of the material taking head 35. An air extraction pump 37 is fixedly bolted to the upper end of the material taking hole 36 at the top of the material taking head 35. The first clamping cylinder 33 drives the second clamping cylinder 34 to horizontally move to the upper side of the fixed socket 10. The second clamping cylinder 34 drives the material taking head 35 to vertically move close to the fixed socket 10, and then the air extraction pump 37 extracts air, so as to adsorb and transport the compressed airbag to the upper side of the drying seat 26.

[0049] The implementation principle of this embodiment is:

[0050] When the airbag folding tooling is used to fold the airbag, lay the airbag on the working end face of the lower folding workbench 1 so that the retainer of the airbag is inserted into the fixed socket 10. Then slide the upper folding workbench 2 so that the upper folding workbench 2 moves to the upper side of the lower folding workbench 1. At this time, start the air jet holes 24, and the air jet holes 24 blow air to the upper and lower end faces of the airbag to preliminarily flatten the airbag. Then start the flattening rollers 22 so that the flattening rollers 22 on the lower folding workbench 1 and the flattening rollers 22 on the upper folding workbench 2 move to the side away from the fixed socket 10 while rotating, thereby further unfolding and flattening the airbag. Then start the first folding assembly 3 to perform the first-stage folding on the airbag. The two lower folding rings 12 move perpendicular to the lower folding workbench 1 and protrude from the working end face of the lower folding workbench 1. Then the three upper folding rings 13 move perpendicular to the upper folding workbench 2 and protrude from the working end face of the upper folding workbench 2. At this time, the two lower folding rings 12 are inserted into the folding slots 15 in the three upper folding rings 13, and the flattened airbag is folded into a corrugated ring shape during the folding process, thus completing the first-stage folding. Then start the second folding assembly 5 to perform the second-stage folding on the complete airbag. The upper folding ring 13 and the lower folding ring 12 are reset. At this time, there is still a certain gap in the folded airbag. At this time, the folding slide bar 16 moves to the upper side of the working surface of the lower folding workbench 1 and then moves towards the fixed socket 10 side, so that the folding slide bar 16 abuts against the airbag that has completed the first-stage folding and compresses it towards the middle. Finally, start the third folding assembly 6 to perform the third-stage folding on the airbag. The folding slide bar 16 is reset. Then the two tightening plates 18 move towards the fixed socket 10 side in the middle until the two tightening blocks 19 tighten the airbag in the tightening groove 20, thus completing the third-stage folding. After the folding is completed, slide the upper folding workbench 2 back to its original position. Then horizontally move the material taking head 35 to the upper side of the airbag. The material taking head 35 adsorbs the airbag through the material taking hole 36 and then horizontally moves to the upper side of the drying seat 26. Then put the airbag into the drying cavity 29. After the drying seat 26 horizontally moves to the upper side of the lower leakage hole 30, the drying air head 27 vertically moves to be inserted into the drying cavity 29 and continuously blows high-temperature air into the drying cavity 29, so that the airbag is dried and shaped. The drying air head 27 continues to move downwards, so that the shaped airbag falls out of the drying cavity 29 and falls onto the receiving plate 31 along the lower leakage hole 30, thereby completing the folding work of the airbag.

[0051] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An airbag folding tooling, characterized in that: It includes a lower folding workbench (1) for flattening the airbag, an upper folding workbench (2) that slides parallel to the working end face of the lower folding workbench (1), a first folding assembly (3) arranged in the middle of the upper folding workbench (2) and the lower folding workbench (1) for the first-stage folding of the airbag, a second folding assembly (5) arranged on the working end face of the lower folding workbench (1) for the second-stage folding of the airbag, a third folding assembly (6) arranged on the working end face of the lower folding workbench (1) and on the side of the second folding assembly (5) away from the first folding assembly (3), and a drying and shaping assembly (7) located on one side of the lower folding workbench (1) for drying and shaping the folded airbag. A gap for laying and folding the airbag is formed between the working end faces of the mutually approaching ends of the upper folding workbench (2) and the lower folding workbench (1). A fixed socket (10) for inserting and fixing the airbag holder is provided in the middle of the working end face of the lower folding workbench (1). The first folding assembly (3) includes two lower folding rings (12) vertically slidably arranged in the middle of the working end face of the lower folding workbench (1), and three upper folding rings (13) vertically slidably arranged in the middle of the working end face of the upper folding workbench (2). The two lower folding rings (12) are coaxially sleeved and coaxially sleeved on the peripheral side of the fixed socket (10). The lower folding rings (12) are flush with the working end face of the lower folding workbench (1). The three upper folding rings (13) are coaxially sleeved and flush with the working end face of the upper folding workbench (2). A folding slot (15) for inserting the lower folding ring (12) is formed between adjacent upper folding rings (13).

2. The airbag folding tooling according to claim 1, characterized in that: The second folding assembly (5) includes a plurality of folding slide bars (16) arranged on the working end face of the lower folding workbench (1). The plurality of folding slide bars (16) are circumferentially and evenly arranged around the fixed socket (10). The length direction of the folding slide bar (16) points to the axis of the fixed socket (10). The folding slide bar (16) slides perpendicular to the lower folding workbench (1) and is flush with the working end face of the lower folding workbench (1). The folding slide bar (16) slides along its own length direction.

3. The airbag folding tooling according to claim 1, wherein: The third folding assembly (6) includes two tightening plates (18) slidably arranged on the working end face of the lower folding workbench (1). The two tightening plates (18) are parallel to each other and located on both sides of the fixed socket (10). Tightening blocks (19) are provided on the mutually approaching end faces of the two tightening plates (18) and on the mutually away sides. A tightening groove (20) for buckling and tightening the airbag is formed on the mutually approaching end faces of the two tightening blocks (19) along the length direction of the tightening plate (18).

4. The airbag folding tooling according to claim 1, wherein: The drying and shaping assembly (7) includes a drying table (25) supported on the ground, a drying base (26) arranged on the upper end surface of the drying table (25), and a drying air head (27) vertically slidably arranged above the drying base (26). A drying cavity (29) which is vertically opened in the middle of the drying base (26) for the folded airbag and the drying air head (27) to be inserted and is in a through shape, a lower leakage hole (30) aligned with the drying cavity (29) is opened on the upper end surface of the drying table (25), and a receiving plate (31) for the airbag to fall into is arranged on the drying table (25) below the lower leakage hole (30).

5. The airbag folding tooling according to claim 4, characterized in that: There are two groups of the drying bases (26), the connection line of the two groups of the drying bases (26) points to the lower folding workbench (1), the two groups of the drying bases (26) are slidably connected to the drying table (25) and the sliding direction is parallel to the lower folding workbench (1), and a clamping assembly (8) for clamping the airbag and sequentially placing it into the two drying cavities (29) is arranged at the side end of the drying table (25).

6. The airbag folding tooling according to claim 5, wherein: The clamping assembly (8) includes a clamping frame (32) arranged horizontally and a material taking head (35) slidably connected to the clamping frame (32). A material taking hole (36) for sucking air upwards is opened at the lower end of the material taking head (35).

7. The airbag folding tooling according to claim 1, wherein: There is a flattening assembly (4) on the working end faces of the lower folding workbench (1) and the upper folding workbench (2). Flattening grooves (21) are uniformly opened on the working end faces of the lower folding workbench (1) and the upper folding workbench (2) around the fixed socket (10). The length direction of the flattening grooves (21) points to the axis of the fixed socket (10). The flattening assembly (4) includes flattening rollers (22) rotatably embedded in the flattening grooves (21) and moving along the length direction of the flattening grooves (21). The flattening rollers (22) on the upper folding workbench (2) and the corresponding flattening rollers (22) on the lower folding workbench (1) rotate in opposite directions and abut against the airbag to flatten and unfold it towards the side away from the fixed socket (10).

8. The airbag folding tooling according to claim 7, wherein: The flattening assembly (4) further includes air jet holes (24) obliquely opened between adjacent flattening grooves (21), and the air jet holes (24) obliquely face the side away from the fixed socket (10).

9. The airbag folding tooling according to claim 7, characterized in that: The flattening rollers (22) on the lower folding workbench (1) move from the side close to the fixed socket (10) to the side away from the fixed socket (10) and gradually move upwards to protrude from the flattening grooves (21), and the flattening rollers (22) on the upper folding workbench (2) move from the side close to the fixed socket (10) to the side away from the fixed socket (10) and gradually move upwards to be hidden in the flattening grooves (21).

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