A one-shot airbag sewing apparatus

Abstract

The utility model relates to a one -off forming air bag sewing equipment, it includes machine table, sewing device, platform device, snatch device and controller, is equipped with sewing station, feeding station, first spare material station and second spare material station on machine table, sewing device includes first mobile mechanism and at least one sewing machine, first mobile mechanism drives sewing machine to move above sewing station, platform device includes two sewing platforms and synchronous alternate mechanism, two sewing platforms height setting, synchronous alternate mechanism drives two sewing platforms along Y axle direction synchronous reverse direction movement, and sewing platform can move to sewing station, snatch device includes second mobile mechanism and two adsorption mechanism, second mobile mechanism drives adsorption mechanism and moves between first spare material station, second spare material station and feeding station, the utility model can realize the automatic snatch of main body cloth piece and functional cloth piece and positioning sewing, guarantees the quality of product, also has improved operation efficiency simultaneously.

Description

Technical Field

[0001] This utility model relates to the technical field of airbag manufacturing equipment, and in particular to a one-time molding airbag sewing device. Background Technology

[0002] Currently, the production of one-piece molded airbags still requires considerable manual intervention. For example, functional fabric pieces, such as reinforcing sheets and cushioning sheets, are sewn onto the main fabric panel. Generally, the main fabric panel has a relatively long width. When sewing functional fabric pieces onto it, the sewing positions of the functional fabric pieces must first be determined. Since these functional fabric pieces are often spaced apart, positioning them manually takes a considerable amount of time. Furthermore, it is difficult to ensure consistent stitching positions for the functional fabric pieces when using a sewing machine manually. Utility Model Content

[0003] The purpose of this invention is to provide a one-time forming airbag sewing device, which can automatically grasp and position the main fabric piece and the functional fabric piece for sewing, ensuring product quality and improving work efficiency.

[0004] To achieve the above objectives, this utility model discloses a one-piece molding airbag sewing device, which includes:

[0005] The machine is equipped with a sewing station, a feeding station, a first material preparation station for positioning and stacking the main fabric pieces, and at least one second material preparation station for positioning and stacking the functional fabric pieces.

[0006] A sewing device includes a first moving mechanism and at least one sewing machine. The first moving mechanism drives the sewing machine to move above the sewing station. The first moving mechanism includes a first Z-axis moving module, at least one first X-axis moving module, and at least one first Y-axis moving module. The first X-axis moving module, the first Y-axis moving module, and the sewing machine are corresponding one-to-one. The first Z-axis moving module drives the first X-axis moving module to move synchronously up and down. The first X-axis moving module drives its corresponding first Y-axis moving module to move along the X-axis. The first Y-axis moving module drives its corresponding sewing machine to move along the Y-axis.

[0007] A platform device, mounted on the machine base, includes two sewing platforms and a synchronous alternating mechanism. The two sewing platforms are positioned at different heights. The synchronous alternating mechanism drives the two sewing platforms to move synchronously in opposite directions along the Y-axis. The sewing platforms can be moved to a sewing station, and when one sewing platform is at the sewing station, the other sewing platform is at the feeding station. The sewing platforms are provided with at least two positioning members for positioning functional fabric pieces and at least two clamping members for clamping the main fabric piece.

[0008] A gripping device, mounted on the machine platform, is used to grip the main fabric piece and the functional fabric piece. It includes a second moving mechanism and two adsorption mechanisms. The second moving mechanism comprises a second Y-axis moving module, two second X-axis moving modules, and two second Z-axis moving modules. Each of the second X-axis moving module, the second Z-axis moving module, and the adsorption mechanism corresponds to one of the two moving modules. The second Y-axis moving module drives the second X-axis moving module to move synchronously along the Y-axis direction. The second X-axis moving module drives its corresponding second Z-axis moving module to move along the X-axis direction. The second Z-axis moving module drives its corresponding adsorption mechanism to move vertically. The second moving mechanism drives the adsorption mechanism to move between the first material preparation station, the second material preparation station, and the loading station.

[0009] The controller is connected to the sewing device, the platform device, and the gripping device.

[0010] After the above setup, by first positioning and neatly stacking the main fabric piece and functional fabric piece at the first and second preparation stations respectively, it can be ensured that the main fabric piece and functional fabric piece are accurately grasped by the gripping device. For functional fabric pieces with a smaller width, only one set of adsorption mechanism is needed to grasp them. For main fabric pieces with a larger width, two sets of adsorption mechanisms are used to grasp them simultaneously (for example, grasping both ends of the main fabric piece and slightly tightening it can grasp the main fabric piece flat). By first grasping and placing the functional fabric piece on the sewing platform at the loading station, the auxiliary positioning component on it can limit the functional fabric piece and prevent it from shifting when the main fabric piece is placed later. When the main fabric piece partially covers the functional fabric piece (the covered part is the sewing area), the clamping component holds the main fabric piece close to the sewing area. At this time, the sewing movement at the loading station can be moved to the sewing station for sewing operations. Because the two sewing platforms are set at different heights, they can move synchronously without interference. Furthermore, the first moving mechanism moves the sewing machine in three dimensions to accommodate sewing platforms of varying heights. By making the sewing machine movable, the positions of the main fabric piece and the functional fabric piece remain unchanged, ensuring their consistent positioning on the sewing platform and guaranteeing product quality. In addition, the two sewing platforms alternate, allowing for material feeding during sewing operations, thus improving work efficiency.

[0011] Preferably, the number of sewing machines is two, and the range of movement of the two sewing machines in the X-axis direction is greater than the width of the sewing platform in the X-axis direction. This arrangement ensures that sewing tasks can be completed even with long threads. Furthermore, if any sewing machine malfunctions, moving it to the side ensures the sewing device can continue to operate normally, thus improving the fault tolerance rate.

[0012] Preferably, the synchronous alternating mechanism includes a frame, a drive unit, and two belt conveyor assemblies. The frame has two first slide rails and two second slide rails spaced apart from each other. The first slide rails are located above the second slide rails. One sewing platform is slidably connected in the first slide rail, and the other sewing platform is slidably connected in the second slide rail. The frame has a stop member for limiting the movement range of the sewing platform. The two belt conveyor assemblies are spaced apart from each other. Each belt conveyor assembly includes a belt and two pulleys. The pulleys are rotatably connected to the frame, and the belt connects to the pulleys. The two belt conveyor assemblies are connected by a coupling. The drive unit is driven by either pulley. The sewing platform located in the first slide rail is connected to the upper end of the belt, and the sewing platform located in the second slide rail is connected to the lower end of the belt. By setting the first and second slide rails, the flatness of the sewing platform can be ensured, which is beneficial to ensuring sewing quality. By limiting the movement range of the sewing platform by the stop member, it is possible to prevent the sewing platform from impacting the belt conveyor assemblies, which is beneficial to ensuring accurate positioning of the sewing platform and ensuring sewing quality. The synchronous staggered movement of the two sewing platforms is achieved through a belt conveyor assembly, which has a simple structure.

[0013] Preferably, the synchronous alternation mechanism further includes two locking components, one of which is located on one side of the frame and the other on the other side. Each locking component includes a locking cylinder, a synchronizing block, and two locking rods. The locking cylinder drives the synchronizing block to move along the X-axis. The locking rods are connected to the side of the synchronizing block away from the locking cylinder and are slidably connected to the frame. The frame has sliding holes adapted to the locking rods. Each locking rod corresponds to a sewing platform, and the sewing platform has locking holes adapted to the locking rods. The locking cylinder can drive the locking rods to insert into the locking holes. By setting the locking components to lock the sewing platform located at the sewing station, the position of the sewing platform is kept stable during sewing operations, ensuring sewing quality.

[0014] Preferably, the stop element is a touch sensor, or a touch sensor is provided at the position of the stop element, and the touch sensor is connected to the controller. With this configuration, the sewing platform presses against the touch sensor to inform the controller of the sewing platform's position, thereby quickly reacting and controlling the locking component's movement and stopping the drive mechanism, thus improving work efficiency and ensuring the service life of the drive mechanism.

[0015] Preferably, the adsorption mechanism includes a perforated plate, a connecting plate, a first control valve, and a second control valve. The bottom surface of the perforated plate is provided with a first adsorption area adapted to the shape of the functional fabric. The area on the bottom surface of the perforated plate other than the first adsorption area is a second adsorption area. Both the first and second adsorption areas are provided with a plurality of vacuum holes. The top surface of the perforated plate is provided with a first connecting groove and a second connecting groove. The vacuum holes located in the first adsorption area are connected to the first connecting groove, and the vacuum holes located in the second adsorption area are connected to the second connecting groove. The perforated plate is connected to a second Z-axis moving module through the connecting plate. The perforated plate and the first connecting groove cooperate to form a first air passage, which is connected to an external vacuum device via the first control valve. The perforated plate and the second connecting groove cooperate to form a second air passage, which is connected to an external vacuum device via the second control valve. The first and second control valves are connected to a controller. When adsorbing the functional fabric, the first adsorption area of ​​the perforated plate presses against the functional fabric. Then, the first control valve opens, and the vacuum holes in the first adsorption area draw in suction, thus adsorbing the functional fabric. When adsorbing the main fabric, the perforated plate presses against the main fabric, and then the second control valve is opened, or both the first and second control valves are opened simultaneously, causing the vacuum holes in at least the second adsorption area to draw in suction, thus adsorbing the main fabric. The fabric pieces of the airbag (main fabric and functional fabric) typically have high airtightness, and the multiple vacuum holes can reliably and stably adsorb the fabric. Furthermore, this adsorption mechanism has fewer electrical components, a simple structure, low cost, and is easy to maintain.

[0016] Preferably, the system further includes a first pressure sensor for detecting the pressure in the first airway and a second pressure sensor for detecting the pressure in the second airway, the first and second pressure sensors being connected to a controller. By setting the first and second pressure sensors, feedback can be effectively provided on whether the adsorption mechanism reliably grips the main fabric piece or functional fabric piece, preventing the fabric piece from being moved before it is stably adsorbed and falling off midway. In addition, it can also serve as feedback when there is no material at the first and second material preparation stations.

[0017] Preferably, both the first and second material preparation stations are equipped with a pushing mechanism. The pushing mechanism includes a lifting module, a pallet, several guide columns, and several positioning columns. The guide columns and positioning columns are connected to the machine base. The pallet is slidably connected to the guide columns, and the positioning columns pass through the pallet. The lifting module drives the pallet to move up and down. The positioning columns at the first material preparation station form a fence adapted to the shape of the main fabric piece, while the positioning columns at the second material preparation station form at least one fence adapted to the shape of the functional fabric piece. By setting up the pushing mechanism, the uppermost main fabric piece and functional fabric piece are always at the same height, facilitating gripping by the gripping device.

[0018] Preferably, the clamping component is a rotary clamping cylinder, the clamp of which cooperates with the sewing platform to clamp the main fabric piece. This clamping component has a simple structure, and the clamp does not interfere with the feeding of the main fabric piece onto the sewing platform.

[0019] Preferably, an industrial camera is installed above the loading station to detect whether the main fabric piece and the functional fabric piece are in place. The industrial camera is connected to a controller. By acquiring images of the main fabric piece and the functional fabric piece on the sewing platform at the loading station through the industrial camera, the controller can determine whether the main fabric piece and the functional fabric piece are in place (whether there is a shortage of material or whether the placement is accurate) by comparing them with a set image, thereby ensuring the sewing quality and avoiding unnecessary work (such as doing unnecessary work when there is a shortage of material). Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0021] Figure 2 This is a three-dimensional schematic diagram from another perspective of the present invention.

[0022] Figure 3 This is a plan view of the present invention.

[0023] Figure 4 for Figure 1 Enlarged schematic diagram of part A in the middle.

[0024] Figure 5 This is a schematic diagram of one of the adsorption mechanisms.

[0025] Figure 6 for Figure 5 A schematic diagram of the adsorption mechanism from another perspective.

[0026] Figure 7 for Figure 5 A schematic diagram of the top surface of the orifice plate of the adsorption mechanism shown.

[0027] Figure 8 This is a schematic diagram of another adsorption mechanism.

[0028] Figure 9 for Figure 8 A schematic diagram of the adsorption mechanism from another perspective.

[0029] Figure 10 for Figure 8 A schematic diagram of the top surface of the orifice plate of the adsorption mechanism shown.

[0030] Figure 11 This is a schematic diagram of the platform device.

[0031] Figure 12 This is a partial schematic diagram of the platform device.

[0032] Figure 13 This is a schematic diagram of the locking component connection.

[0033] Note: Figure 2 The first and second material preparation stations were concealed.

[0034] Explanation of symbols for main components:

[0035] Machine 10, sewing station 11, feeding station 12, first material preparation station 13, second material preparation station 14, lifting module 15, pallet 16, guide column 17, positioning column 18.

[0036] Second Y-axis moving module 21, second X-axis moving module 22, second Z-axis moving module 23, adsorption mechanism 24, perforated plate 25, connecting plate 26, first control valve 27, second control valve 28, first adsorption area 29, second adsorption area 2a, vacuum hole 2b, first connecting groove 2c, second connecting groove 2d.

[0037] Sewing platform 31, frame 32, first slide rail 33, second slide rail 34, stop part 35, belt 36, pulley 37, coupling 38, locking cylinder 39, synchronizing block 3a, locking rod 3b, locking hole 3c, positioning part 3d, clamping part 3e.

[0038] First Z-axis moving module 41, first X-axis moving module 42, first Y-axis moving module 43, sewing machine 44;

[0039] Main fabric piece 51, functional fabric piece 52, positioning hole 53. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0041] like Figure 1-13 As shown, this utility model discloses a one-time forming airbag sewing device, which includes: a machine base 10, a sewing device, a platform device, a gripping device, an industrial camera, and a controller, wherein the controller is a PLC.

[0042] The machine tool 10 is equipped with a sewing station 11, a feeding station 12, a first preparation station 13 for positioning and stacking the main fabric piece 51, and at least one second preparation station 14 for positioning and stacking the functional fabric pieces 52. In this case, the example of a one-piece molded airbag including a main fabric piece 51 and two functional fabric pieces 52 is used for illustration. The two functional fabric pieces 52 have different shapes. In order to ensure that the main fabric piece 51 and the functional fabric pieces 52 are not easily scattered and are also easy to be grasped by the gripping device, a pushing mechanism is provided at both the first preparation station 13 and the second preparation station 14. Specifically, the pushing mechanism includes a lifting module 15, a tray 16, several guide columns 17 and several positioning columns 18. The guide columns 17 and the positioning columns 18 are fixedly connected to the machine tool 10. The tray 16 is slidably connected to the guide columns 17, and the positioning columns 18 pass through the tray 16. The lifting module 15 drives the tray 16 to move up and down. Positioning posts 18 at the first preparation station 13 form a fence adapted to the shape of the main fabric piece 51, while positioning posts 18 at the second preparation station 14 form at least one fence adapted to the shape of the functional fabric piece 52. The main fabric piece 51 and the functional fabric piece 52 are stacked on the pallets 16 of the corresponding pushing mechanisms. Each time the gripping device grips a layer of main fabric piece 51 and functional fabric piece 52, the lifting module 15 drives the pallet 16 to rise a certain distance (this distance is related to the thickness of the fabric piece), thus ensuring that the topmost stacked main fabric piece 51 and functional fabric piece 52 are always at the same height. The lifting module 15 is connected to a controller.

[0043] The gripping device, used to grip the main fabric piece 51 and the functional fabric piece 52, is mounted on the machine base 10. It includes a second moving mechanism and two adsorption mechanisms 24. The second moving mechanism drives the adsorption mechanisms 24 to move between the first material preparation station 13, the second material preparation station 14, and the loading station 12. Specifically, the second moving mechanism includes a second Y-axis moving module 21, two second X-axis moving modules 22, and two second Z-axis moving modules 23. Each of the second X-axis moving modules 22, the second Z-axis moving modules 23, and the adsorption mechanisms 24 corresponds to a specific adsorption mechanism 24. The second Y-axis moving module 21 drives the second X-axis moving module 22 to move synchronously along the Y-axis direction. The second X-axis moving module 22 drives its corresponding second Z-axis moving module 23 to move along the X-axis direction. The second Z-axis moving module 23 drives its corresponding adsorption mechanism 24 to move vertically. The second Y-axis moving module 21, the second X-axis moving module 22, and the second Z-axis moving module 23 are all connected to a controller. In the second moving mechanism, the second X-axis moving module 22 is mounted at a height relative to the second Y-axis moving module 21.

[0044] like Figure 5-10As shown, the adsorption mechanism 24 includes a perforated plate 25, a connecting plate 26, a first control valve 27, a second control valve 28, a first pressure sensor, and a second pressure sensor. The first control valve 27, the second control valve 28, the first pressure sensor, and the second pressure sensor are all connected to a controller. A first adsorption area 29, adapted to the shape of the functional fabric piece 52, is provided on the bottom surface of the perforated plate 25. The area on the bottom surface of the perforated plate 25 excluding the first adsorption area 29 is a second adsorption area 2a. Several vacuum holes 2b are provided in both the first adsorption area 29 and the second adsorption area 2a. A first connecting groove 2c and a second connecting groove 2d are provided on the top surface of the perforated plate 25. The vacuum holes 2b located in the first adsorption area 29 communicate with the first connecting groove 2c, and the vacuum holes 2b located in the second adsorption area 2a communicate with the second connecting groove 2d. The perforated plate 25 is connected to the second Z-axis moving module 23 via the connecting plate 26. Furthermore, the perforated plate 25 cooperates with the first connecting groove 2c to form a first air passage, that is, the perforated plate 25 covers and seals the first connecting groove 2c. The first air passage is connected to an external vacuuming device via the first control valve 27. Similarly, the perforated plate 25 also cooperates with the second connecting groove 2d to form a second air passage, which is connected to an external vacuuming device via the second control valve 28. It is advisable that the external vacuuming device is connected to a controller. The first pressure sensor is used to detect the pressure of the first air passage, and the second pressure sensor is used to detect the pressure of the second air passage. When adsorbing the functional fabric 52, the first adsorption area 29 of the perforated plate 25 is first pressed against the functional fabric 52. Then, the first control valve 27 is opened, and the vacuum hole 2b of the first adsorption area 29 draws in and adsorbs the functional fabric 52. By detecting the pressure of the first air passage by the first pressure sensor, it can be determined whether the functional fabric 52 has been reliably adsorbed. Similarly, when adsorbing the main fabric piece 51, the perforated plate 25 is first pressed against the main fabric piece 51, and then the second control valve 28 is opened, or the first control valve 27 and the second control valve 28 are opened simultaneously, so that at least the vacuum hole 2b of the second adsorption area 2a is drawn to adsorb the main fabric piece 51.

[0045] The platform device is used to position the main fabric piece 51 and the functional fabric piece 52 to facilitate the sewing device in stitching them together. For example... Figure 11-13 As shown, the platform device is installed on the machine base 10, which includes two sewing platforms 31 and a synchronous alternation mechanism. The two sewing platforms 31 are set at different heights, that is, the two sewing platforms 31 are set at different heights. The synchronous alternation mechanism drives the two sewing platforms 31 to move synchronously in opposite directions along the Y-axis. Moreover, the sewing platforms 31 can move to the sewing station 11. When either sewing platform 31 is located at the sewing station 11, the other sewing platform 31 is located at the loading station 12. This enables the loading and sewing operations to be carried out simultaneously, thereby improving the work efficiency.

[0046] Specifically, the synchronous alternation mechanism includes a frame 32, a drive unit, two belt conveyor assemblies, and two locking assemblies. The frame 32 has two first slide rails 33 and two second slide rails 34 spaced apart from each other. The first slide rails 33 are located above the second slide rails 34. One sewing platform 31 is slidably connected to the first slide rail 33, and the other sewing platform 31 is slidably connected to the second slide rail 34. A stop 35 is provided on the frame 32 to limit the movement range of the sewing platform 31. The stop 35 is a block, and a touch sensor is located at the stop 35. The sewing platform 31 can press against the touch sensor, which is connected to a controller. The position of the sewing platform 31 is determined by the touch sensor.

[0047] Two belt conveyor assemblies are spaced apart in the X-axis direction. Each belt conveyor assembly includes a belt 36 and two pulleys 37, which are spaced apart in the Y-axis direction. The pulleys 37 are rotatably connected to the frame 32, and the belt 36 connects to the pulleys 37. The two belt conveyor assemblies are connected by a coupling 38 to achieve synchronous rotation. A drive unit, which is a motor, is connected to either pulley 37 and is driven by a controller. The sewing platform 31 located on the first slide rail 33 is connected to the upper end of the belt 36, and the sewing platform 31 located on the second slide rail 34 is connected to the lower end of the belt 36.

[0048] One locking assembly is located on one side of frame 32, and the other locking assembly is located on the other side of frame 32, with the two locking assemblies arranged opposite each other in the X-axis direction. Each locking assembly includes a locking cylinder 39, a synchronizing block 3a, and two locking rods 3b. The locking cylinder 39 is connected to a controller. The locking cylinder 39 drives the synchronizing block 3a to move along the X-axis direction. The locking rods 3b are fixedly connected to the side of the synchronizing block 3a away from the locking cylinder 39. The locking rods 3b are slidably connected to frame 32. Frame 32 has sliding holes adapted to the locking rods 3b; this arrangement ensures stable sliding direction of the locking rods 3b. Each locking rod 3b corresponds one-to-one with a sewing platform 31. The sewing platform 31 has locking holes 3c adapted to the locking rods 3b, and the locking cylinder 39 can drive the locking rods 3b to insert into the locking holes 3c. It is preferable that the locking component is located at the sewing station 11. By setting the locking component to lock the sewing platform 31 located at the sewing station 11, the position of the sewing platform 31 is kept stable during the sewing operation, thus ensuring the sewing quality.

[0049] The sewing platform 31 is equipped with at least two positioning elements 3d for positioning the functional fabric pieces 52 and at least two clamping elements 3e for clamping the main fabric piece 51. Generally, the functional fabric piece 52 is provided with two positioning holes 53. In this case, the positioning element 3d is a positioning pin that matches the positioning hole 53, and each functional fabric piece 52 is equipped with two positioning pins. The clamping element 3e is a rotary clamping cylinder. The clamping head of the rotary clamping cylinder cooperates with the sewing platform 31 to clamp the main fabric piece 51, and the clamping element 3e is connected to a controller. With this configuration, when the main fabric piece 51 is not being fed, the clamping head can rotate and rise without interfering with the feeding of the main fabric piece 51 onto the sewing platform 31. In this case, the positioning pin is located between the two clamping elements 3e. Of course, more clamping elements 3e can be added, such as clamping elements 3e on both sides of each functional fabric piece 52, to ensure the stability of the sewing position.

[0050] An industrial camera is positioned above the loading station 12 to detect whether the main fabric piece 51 and the functional fabric piece 52 are properly placed on the sewing platform 31. The industrial camera is connected to a controller. By acquiring images of the main fabric piece 51 and the functional fabric piece 52 on the sewing platform 31 at the loading station 12, the controller compares these images with preset images to determine whether the main fabric piece 51 and the functional fabric piece 52 are in place (whether there is missing material or whether the placement is accurate), thus ensuring sewing quality and avoiding unnecessary work (such as wasted work in the event of missing material). Using an industrial camera for material placement comparison is existing technology and will not be elaborated further.

[0051] The sewing device is mounted on the machine platform 10 and includes a first moving mechanism and two sewing machines 44. The first moving mechanism drives the sewing machines 44 to move above the sewing station 11. The first moving mechanism includes a first Z-axis moving module 41, two first X-axis moving modules 42, and two first Y-axis moving modules 43. The first X-axis moving modules 42, 43, and sewing machines 44 correspond one-to-one. The first Z-axis moving modules 41, 42, 43, and 44 are all connected to a controller. The first Z-axis moving module 41 drives the first X-axis moving module 42 to move synchronously up and down. The first X-axis moving module 42 drives its corresponding first Y-axis moving module 43 to move along the X-axis. The first Y-axis moving module 43 drives its corresponding sewing machine 44 to move along the Y-axis. By raising and lowering the sewing machines 44, they can be adapted to sewing platforms 31 of different heights for operation. By making the sewing machine 44 movable, the positions of the main fabric piece 51 and the functional fabric piece 52 remain unchanged, ensuring their positioning on the sewing platform 31 and guaranteeing stitching quality, thus ensuring product quality. Using two sewing machines 44 can accelerate the sewing process. Furthermore, both sewing machines 44 must have a greater range of movement in the X-axis direction than the width of the sewing platform 31 in the X-axis direction. This configuration ensures completion even with long seams. Additionally, if either sewing machine 44 malfunctions, it can be moved aside, and the other sewing machine 44 can continue to operate normally, improving the fault tolerance rate.

[0052] In this case, the lifting module 15, the first X-axis moving module 42, the first Y-axis moving module 43, the second Y-axis moving module 21, the second X-axis moving module 22, and the second Z-axis moving module 23 are all linear moving modules constructed based on a motor, a screw, a slide bar, and a slider, which is existing technology. Their connection relationship is as follows: the screw and the slide bar are parallel to each other; the motor drives the screw to rotate; the slider is slidably connected to the slide bar on one hand and threadedly connected to the screw on the other. When the motor runs, the slider can move along the length of the slide bar. The two first X-axis moving modules 42 in the first moving mechanism can share a single slide bar, and the two second X-axis moving modules 22 in the second moving mechanism can share a single slide bar. The first Z-axis moving module 41 is a cylinder or hydraulic cylinder, which can be supplemented with guide columns and guide sleeves to ensure the stability of the moving direction.

[0053] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A one-piece molding airbag sewing device, characterized in that, include: The machine is equipped with a sewing station, a feeding station, a first material preparation station for positioning and stacking the main fabric pieces, and at least one second material preparation station for positioning and stacking the functional fabric pieces. A sewing device includes a first moving mechanism and at least one sewing machine. The first moving mechanism drives the sewing machine to move above the sewing station. The first moving mechanism includes a first Z-axis moving module, at least one first X-axis moving module, and at least one first Y-axis moving module. The first X-axis moving module, the first Y-axis moving module, and the sewing machine are corresponding one-to-one. The first Z-axis moving module drives the first X-axis moving module to move synchronously up and down. The first X-axis moving module drives its corresponding first Y-axis moving module to move along the X-axis. The first Y-axis moving module drives its corresponding sewing machine to move along the Y-axis. A platform device, mounted on the machine base, includes two sewing platforms and a synchronous alternating mechanism. The two sewing platforms are positioned at different heights. The synchronous alternating mechanism drives the two sewing platforms to move synchronously in opposite directions along the Y-axis. The sewing platforms can be moved to a sewing station, and when one sewing platform is at the sewing station, the other sewing platform is at the feeding station. The sewing platforms are provided with at least two positioning members for positioning functional fabric pieces and at least two clamping members for clamping the main fabric piece. A gripping device, mounted on the machine platform, is used to grip the main fabric piece and the functional fabric piece. It includes a second moving mechanism and two adsorption mechanisms. The second moving mechanism comprises a second Y-axis moving module, two second X-axis moving modules, and two second Z-axis moving modules. Each of the second X-axis moving module, the second Z-axis moving module, and the adsorption mechanism corresponds to one of the two moving modules. The second Y-axis moving module drives the second X-axis moving module to move synchronously along the Y-axis direction. The second X-axis moving module drives its corresponding second Z-axis moving module to move along the X-axis direction. The second Z-axis moving module drives its corresponding adsorption mechanism to move vertically. The second moving mechanism drives the adsorption mechanism to move between the first material preparation station, the second material preparation station, and the loading station. The controller is connected to the sewing device, the platform device, and the gripping device.

2. The one-piece molding airbag sewing device according to claim 1, characterized in that: The number of sewing machines is two, and the range of movement of the two sewing machines in the X-axis direction is greater than the width of the sewing platform in the X-axis direction.

3. The one-piece molding airbag sewing equipment according to claim 1, characterized in that: The synchronous alternation mechanism includes a frame, a drive unit, and two belt conveyor assemblies. The frame has two first slide rails and two second slide rails spaced apart from each other. The first slide rails are located above the second slide rails. One sewing platform is slidably connected to the first slide rail, and the other sewing platform is slidably connected to the second slide rail. The frame has stop members for limiting the movement range of the sewing platforms. The two belt conveyor assemblies are spaced apart from each other. Each belt conveyor assembly includes a belt and two pulleys. The pulleys are rotatably connected to the frame, and the belt connects to the pulleys. The two belt conveyor assemblies are connected by a coupling. The drive unit is driven by either pulley. The sewing platform located in the first slide rail is connected to the upper end of the belt, and the sewing platform located in the second slide rail is connected to the lower end of the belt.

4. The one-piece molding airbag sewing equipment according to claim 3, characterized in that: The synchronous alternation mechanism further includes two locking components, one of which is located on one side of the frame and the other on the other side of the frame. Each locking component includes a locking cylinder, a synchronizing block, and two locking rods. The locking cylinder drives the synchronizing block to move along the X-axis. The locking rods are connected to the side of the synchronizing block away from the locking cylinder. The locking rods are slidably connected to the frame, and the frame has sliding holes adapted to the locking rods. Each locking rod corresponds to a sewing platform, and the sewing platform has locking holes adapted to the locking rods. The locking cylinder can drive the locking rods to insert into the locking holes.

5. The one-piece molding airbag sewing equipment according to claim 3, characterized in that: The stop element is a touch sensor, or a touch sensor is provided at the position of the stop element, and the touch sensor is connected to the controller.

6. The one-piece molding airbag sewing device according to claim 1, characterized in that: The adsorption mechanism includes an orifice plate, a connecting plate, a first control valve, and a second control valve. The bottom surface of the orifice plate has a first adsorption area adapted to the shape of the functional fabric. The area on the bottom surface of the orifice plate other than the first adsorption area is a second adsorption area. Both the first and second adsorption areas have a plurality of vacuum holes. The top surface of the orifice plate has a first connecting groove and a second connecting groove. The vacuum holes located in the first adsorption area communicate with the first connecting groove, and the vacuum holes located in the second adsorption area communicate with the second connecting groove. The orifice plate is connected to a second Z-axis moving module through the connecting plate. The orifice plate and the first connecting groove cooperate to form a first air passage, which is connected to an external vacuum device via the first control valve. The orifice plate and the second connecting groove cooperate to form a second air passage, which is connected to an external vacuum device via the second control valve. The first and second control valves are connected to a controller.

7. The one-piece molding airbag sewing device according to claim 6, characterized in that: It also includes a first pressure sensor for detecting the first airway pressure and a second pressure sensor for detecting the second airway pressure, the first pressure sensor and the second pressure sensor being connected to the controller.

8. The one-piece molding airbag sewing device according to claim 1, characterized in that: Both the first and second material preparation stations are equipped with a pushing mechanism. The pushing mechanism includes a lifting module, a pallet, several guide columns, and several positioning columns. The guide columns and positioning columns are connected to the machine base. The pallet is slidably connected to the guide columns. The positioning columns pass through the pallet. The lifting module drives the pallet to move up and down. The positioning columns located at the first material preparation station form a fence that matches the shape of the main fabric piece. The positioning columns located at the second material preparation station form at least one fence that matches the shape of the functional fabric piece.

9. The one-piece molding airbag sewing device according to claim 1, characterized in that: The clamping component is a rotary clamping cylinder, and the clamp of the rotary clamping cylinder cooperates with the sewing platform to clamp the main fabric piece.

10. The one-piece molding airbag sewing device according to claim 1, characterized in that: An industrial camera is installed above the loading station to detect whether the main fabric piece and the functional fabric piece are in place. The industrial camera is connected to a controller.

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