Airbag edge sealing equipment

Abstract

The invention discloses an airbag edge sealing device, which belongs to the technical field of airbag processing equipment, and comprises a separation plate, a feeding assembly, a feeding assembly and a heat sealing assembly; a heat sealing assembly for heat sealing an airbag base cloth is arranged between the feeding assembly and the feeding assembly; by arranging the feeding assembly and the feeding assembly, the guide rail and the chain transmission are driven by the rotation of a motor, so as to realize automatic stacking of the airbag base cloth, realize automatic superposition, and do not need to repeat the work manually; by arranging multiple groups of heat sealing wheels on both sides and the rear side of a mounting plate, the airbag base cloth is fixed by the multiple groups of heat sealing wheels and the sealing frame, and it is no longer necessary to use a fixed template for fixing, thereby solving the problem of complicated operation steps; by arranging a cylinder assembly, the cylinder assembly can adjust the distance between the mounting plates on both sides to adapt to airbag base cloths of different sizes, and the one-time forming edge sealing of the airbag base cloth is realized by the heat sealing wheels installed on the mounting plates on both sides, thereby improving the processing efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of airbag processing equipment, and in particular relates to an airbag edge sealing device. Background Art

[0002] The airbag system is a passive safety protection system that works with seat belts to provide effective anti-collision protection for passengers. The airbag is sewn into an inflatable bag. The edges of the airbag need to be sewn so that the airbag can form a predetermined shape after inflation.

[0003] The airbag bag sewing equipment currently used in the prior art is usually used in conjunction with a fixed processing template. For example, the patent document with patent number CN218059445U discloses a mold clamp for sewing airbag bags, and the patent document with patent number CN214060876U discloses a template device for airbag sewing equipment. Two pieces of airbag base fabrics are manually stacked and placed on the template for fixation, and the template is placed under the sewing equipment. Through the pre-set needle track, the needle can sew the airbag bag along the track pre-opened on the template. After the processing is completed, the workers will take out the sewn airbag bags, stack and pack them, and then transport them to the next process.

[0004] The above-mentioned airbag sewing equipment and work process have the following disadvantages: (1) When the existing edge sealing device is used for sewing and sealing, it is necessary to manually stack the two airbag base fabrics and put them into the template for fixing, which cannot achieve automatic stacking, increasing the manual workload and affecting the processing efficiency; (2) When sewing the edges, the sewing equipment requires the needle to sew according to the trajectory pre-opened in the template, which cannot achieve one-time molding and requires a longer time to complete. In addition, for airbags of different sizes, it is necessary to replace different processing templates and adjust the movement trajectory of the sewing needle, and the operation steps are relatively cumbersome. Summary of the invention

[0005] Based on this, it is necessary to provide an airbag edge sealing device to solve the above problems.

[0006] In order to solve the problems raised in the above background technology, the present invention provides the following technical solutions: an airbag edge sealing device, comprising a separation disc, a feeding assembly, a feeding assembly and a heat sealing assembly; the feeding assembly and the feeding assembly are respectively arranged on both sides of the separation disc for placing and receiving an airbag base fabric, and a heat sealing assembly for heat-sealing the airbag base fabric is arranged between the feeding assembly and the feeding assembly;

[0007] The loading assembly and the unloading assembly have the same structure, and both the loading assembly and the unloading assembly include a support frame, a lifting assembly and a moving assembly. The support frame is arranged on the side of the separation disk, the lifting assembly is arranged at the lower part of the support frame, and is used to place and adjust the height position of the airbag base cloth. The moving assembly is arranged at the upper part of the support frame, and is used to move the airbag base cloth from the loading assembly to the separation disk and move the airbag base cloth from the separation disk to the unloading assembly.

[0008] The heat sealing assembly includes a fixed frame, a driving member 1, a driving member 2, a support assembly and a heat sealing unit, the fixed frame is arranged on the side of the separation disk, the fixed end of the driving member 1 is arranged on the fixed frame, the movable end of the driving member 1 is connected with the driving member 2, and is used to adjust the vertical height of the support assembly, the support assembly includes two symmetrically arranged mounting plates, the heat sealing unit includes a transverse heat sealing member and two longitudinal heat sealing members, the two longitudinal heat sealing members are symmetrically arranged on the two mounting plates, the transverse heat sealing member is arranged between the two mounting plates, and the two ends of the driving member 2 are respectively connected with the transverse heat sealing member and the longitudinal heat sealing member for driving the longitudinal heat sealing member to move axially along the mounting plate, and to drive the transverse heat sealing member to move transversely between the two mounting plates.

[0009] Furthermore, a plurality of cloth trays for placing the airbag base cloth are arranged around the separation tray, a sealing frame for positioning the airbag base cloth is arranged around the cloth tray, a detection unit for detecting whether the airbag base cloth is placed in place is arranged in the middle of the cloth tray, a base is arranged at the bottom of the separation tray for fixing the separation tray, a stepper motor is installed inside the base, and the output shaft of the stepper motor is connected to the separation tray.

[0010] Furthermore, the middle of the mounting plate is hollowed out, the fixed end of the driving member 2 is connected to the movable end of the driving member 1, the movable end of the driving member 2 is provided with a telescopic rod, the telescopic rod is located between the two mounting plates and parallel to the mounting plates, a transmission rod parallel to the telescopic rod is provided on the telescopic rod through a connecting member, the transmission rod is connected to the transverse heat sealing member on the side away from the telescopic rod, and a limit rod 1 and a limit rod 2 are provided in sequence on the side of the telescopic rod away from the driving member 2, the limit rod 1 and the telescopic rod are perpendicular to each other, the limit rod 1 is connected to the telescopic rod, both sides of the limit rod 1 and the limit rod 2 are connected to the longitudinal heat sealing member, and the driving member 1 and the driving member 2 both adopt electric cylinders.

[0011] Furthermore, the longitudinal heat sealing part includes a heat sealing block 1 and a heat sealing block 2 which are arranged at the bottom of the mounting plate and are parallel to each other, and the heat sealing block 1 and the heat sealing block 2 are respectively provided with a slide rod 1 and a slide rod 2, and limit plates are symmetrically arranged on both sides of the bottom of the mounting plate on both sides of the axis, and the heat sealing block 1 and the heat sealing block 2 are respectively slidably connected with the limit plates through the slide rod 1 and the slide rod 2, and one end of the slide rod 2 passing through the limit plate is inserted into the limit rod 1, and one end of the slide rod 1 passing through the limit plate is sequentially inserted into the limit rod 1 and the limit rod 2, and the heat sealing block 1 and the heat sealing block 2 are connected in reverse rotation, so that the heat sealing block 1 and the heat sealing block 2 move synchronously in reverse directions.

[0012] Furthermore, tooth plates are provided on the side walls of the heat sealing block 1 and the heat sealing block 2 which are close to each other, and a gear is provided between the two tooth plates. The gear and the tooth plates are meshed with each other. The gear is provided on the rotating shaft 1, and the upper end of the rotating shaft 1 is rotatably provided in the mounting plate.

[0013] Further, the transverse heat sealing part includes a connecting plate 2, a connecting plate 3 is arranged below the connecting plate 2, a slide groove 1 is arranged at the bottom of the connecting plate 3, a slide groove 2 is arranged on the side of the connecting plate 3, the slide groove 1 and the slide groove 2 are connected to each other, and two symmetrical sliding parts are slidably arranged in the slide groove 1, and the two sliding parts are respectively connected to the transmission rod through two connecting rods, and the two connecting rods form a V-shaped structure, and the two connecting rods drive the two sliding parts to move closer to or away from each other.

[0014] Further, the sliding member includes a slider 1 and a slider 2, the slider 1 is slidably arranged in the slide groove 1, the slider 2 is arranged on the side of the slider 1 facing the slide groove 2, the slider 2 is slidably arranged in the slide groove 2, a part of the slider 2 protrudes out of the slide groove 2, and a connecting hole is opened on the part of the slider 2 protruding out of the slide groove 2, one end of the two connecting rods is rotatably connected to the connecting hole, and the other ends of the two connecting rods are rotatably connected to the transmission rod.

[0015] Furthermore, a heat sealing wheel 2 is provided at the bottom of each of the heat sealing blocks 1 and 2, a heat sealing wheel 1 is provided at the bottom of each of the sliders 1, and both the heat sealing wheel 1 and the heat sealing wheel 2 are used to contact with the airbag base cloth for heat sealing, and heating elements are provided inside each of the heat sealing wheel 1 and the heat sealing wheel 2.

[0016] Furthermore, a driving member three is arranged between the driving member one and the driving member two, and the driving member three includes a bidirectional cylinder and a connecting rod. The fixed end of the bidirectional cylinder is connected to the movable end of the driving member one, and the two movable ends of the bidirectional cylinder are both provided with connecting rods, and the connecting rods are connected to the mounting plate. The driving member two is arranged at the fixed end of the bidirectional cylinder, and the bidirectional cylinder can drive the two connecting rods to move closer to or away from each other.

[0017] Furthermore, the connecting plate three includes an inner plate and an outer plate, and the ends of the inner plate and the outer plate that are far away from each other are symmetrically arranged on the side walls of the two mounting plates that are close to each other. The ends of the inner plate and the outer plate that are close to each other are slidingly connected, and the two sliding parts are respectively located under the inner plate and the outer plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The device can realize automatic stacking of airbag base cloths and automatic operation by arranging a loading component and a unloading component, thereby greatly improving production efficiency. At the same time, the suction cup structure arranged on the loading component and the unloading component will not cause damage to the airbag base cloth when grabbing and preventing the airbag base cloth.

[0020] The device is provided with a transverse heat-sealing member and a longitudinal heat-sealing member, through which multiple edges of multiple airbag base fabrics can be heat-sealed, and the transverse heat-sealing member and the longitudinal heat-sealing member are connected to the second driving member through a transmission rod, so that one driving source can drive the transverse heat-sealing member and the longitudinal heat-sealing member to perform a synchronous heat-sealing process, and the working efficiency is high. At the same time, the heat-sealing member can position the airbag base fabric during the heat-sealing process, and compared with conventional sewing equipment, no additional fixing device is required, the structure is simple, and the degree of automation is high.

[0021] The device can adjust the distance between the mounting plates through the driving member 3, and can be suitable for airbag base fabrics of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the airbag edge sealing device of the present invention;

[0023] Figure 2 for Figure 1 A top view of

[0024] Figure 3 for Figure 2 Section view along AA;

[0025] Figure 4 It is a structural schematic diagram of the feeding component;

[0026] Figure 5 is a schematic diagram of the structure of the heat sealing component;

[0027] Figure 6 for Figure 5 A top view of

[0028] Figure 7 for Figure 6 Sectional view along BB;

[0029] Figure 8 It is a plan view of the heat sealing component in working state;

[0030] Fig. 9 It is a plan view schematic diagram of the heat sealing component in working state II;

[0031] Fig.10 for Figure 8 Schematic diagram of the three-dimensional structure;

[0032] Fig.11 for Fig. 9 Schematic diagram of the three-dimensional structure;

[0033] Fig.12 It is a schematic diagram of the three-dimensional structure of the heat sealing component;

[0034] Fig.13 It is a schematic structural diagram of the matching relationship between heat sealing block one and heat sealing block two.

[0035] Reference numerals: 10, separation plate; 11, material plate; 12, sealing frame; 13, detection unit; 14, base; 15, stepping motor; 20, feeding assembly; 21, lifting assembly 1; 22, placement plate; 221, airbag base cloth; 23, bracket 1; 24, guide rail; 241, chain; 25, conveying motor; 26, moving platform; 261, connecting plate 1; 262, lifting assembly 2; 27, air pump box; 28, air pipe; 29, suction cup; 30, unloading assembly; 40, heat sealing assembly; 41, driving member 1; 411, two-way cylinder; 412, connecting rod; 42 , mounting plate; 421, connecting plate two; 422, rotating shaft one; 4221, gear; 423, limiting plate; 424, connecting plate three; 425, slide slot one; 426, slide slot two; 427, slider one; 428, slider two; 429, heat sealing wheel one; 43, driving member two; 431, connecting member; 432, transmission rod; 433, rotating shaft two; 434, connecting rod; 435, rotating shaft three; 44, limiting rod one; 45, heat sealing block one; 451, sliding rod one; 452, tooth plate; 46, heat sealing block two; 461, sliding rod two; 47, heat sealing wheel two; 48, limiting rod two. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the embodiments.

[0037] The following examples are used to illustrate the present invention, but they cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions. Simple improvements to the method of the present invention under the premise of the concept of the present invention belong to the scope of protection claimed in the present invention.

[0038] The present invention provides an airbag edge sealing device, comprising a separation disc 10, a loading assembly 20, a loading assembly 30 and a heat sealing assembly 40; the loading assembly 20 and the loading assembly 30 are respectively arranged on both sides of the separation disc 10 for placing and receiving an airbag base fabric 221, and a heat sealing assembly 40 for heat sealing the airbag base fabric 221 is arranged between the loading assembly 20 and the loading assembly 30.

[0039] like Figure 1 As shown, the loading component 20 is used to place multiple groups of airbag base fabric groups, each group of airbag base fabric groups contains multiple pieces of airbag base fabric 221, and the multiple pieces of airbag base fabric 221 in the group have been stacked in order, and each group of airbag base fabric 221 is transferred to the separation disk 10 at a time interval; the separation disk 10 is used to rotate according to a set angle, and rotate the airbag base fabric 221 transferred from the loading component 20 to a set position for heat sealing; the heat sealing component 40 is arranged on the side of the separation disk 10, and after the separation disk 10 is rotated, the airbag base fabric 221 can be sent to the inside of the heat sealing component 40 for heat sealing; the unloading component 30 is used to transfer the airbag base fabric 221 sewn by the heat sealing component 40 from the separation disk 10 to the unloading component 30, thereby forming an automatic sewing process, and the heat-sealed airbag base fabric 221 is then transported to other processes for the next step of processing.

[0040] like Figure 1-Figure 3 As shown, a plurality of cloth trays 11 are equidistantly arranged on the upper side wall of the separation tray 10 in the circumferential direction for placing the airbag base fabric 221. A sealing frame 12 is arranged around each cloth tray 11 for positioning the four sides of the airbag base fabric 221. During heat sealing, a part of the structure of the heat sealing component 40 will abut against the sealing frame 12 to prevent the airbag base fabric 221 from being displaced during the heat sealing process. A detection unit 13 is arranged in the middle of the cloth tray 11. The detection unit 13 is used to detect whether the airbag base fabric 221 is If the airbag base fabric 221 is placed on the cloth tray 11, the detection unit 13 adopts a pressure sensor. When the airbag base fabric 221 is placed above the detection unit 13, if the detection unit 13 detects the airbag base fabric 221, the separation tray 10 will operate normally. A base 14 is provided at the bottom of the separation tray 10, and a stepper motor 15 is provided inside the base 14. The output end of the stepper motor 15 passes through the base 14 and is connected to the separation tray 10. The separation tray 10 is controlled to rotate at a set angle through the stepper motor 15. It can be understood that: the stepper motor 15 controls the separation disc 10 to rotate, so that the fabric disc 11 is close to the loading assembly 20, and the loading assembly 20 places the airbag base cloth 221 on the fabric disc 11, and then the stepper motor 15 controls the separation disc 10 to rotate, so that the fabric disc 11 with the airbag base cloth 221 is transferred to the inside of the heat sealing assembly 40 for heat sealing, and finally the stepper motor 15 controls the separation disc 10 to rotate, so that the heat-sealed airbag base cloth 221 rotates to the vicinity of the unloading assembly 30, and the airbag base cloth 221 is taken out and stacked on the unloading assembly 30 using the unloading assembly 30.

[0041] like Figure 3-Figure 4 As shown, the loading assembly 20 and the unloading assembly 30 are respectively arranged on both sides of the separation disc 10, and are respectively used to place the unsewn airbag base cloth 221 and receive the heat-sealed airbag base cloth 221. The loading assembly 20 and the unloading assembly 30 have the same structure. The loading assembly 20 and the unloading assembly 30 both include a supporting frame, a lifting assembly and a moving assembly. The supporting frame is arranged on the side of the separation disc 10, the lifting assembly is arranged at the lower part of the supporting frame, and is used to place and adjust the height position of the airbag base cloth 221, and the moving assembly is arranged at the upper part of the supporting frame, and is used to move the airbag base cloth 221 from the loading assembly 20 to the separation disc 10 and to move the airbag base cloth 221 from the separation disc 10 to the unloading assembly 30.

[0042] The supporting frame includes a rectangular block and two partitions, which are vertically arranged on both sides of the rectangular block symmetrically. A lifting component 21 is arranged on the rectangular block of the supporting frame. A placing plate 22 is arranged at the telescopic end of the lifting component 21 for placing an airbag base cloth 221. The placing plate 22 is located between the two partitions. The placing plate 22 and the partitions are slidably connected. The placing plate 22 is driven by the lifting component 21 to move up and down. The lifting component 21 adopts an electric cylinder, and the material of the airbag base cloth 221 is a mixture of one or more of nylon or polyester fibers.

[0043] A moving assembly is arranged between the two partitions, and the moving assembly includes a bracket 23, and the bracket 23 is composed of multiple connecting rods 434. The multiple connecting rods 434 are arranged horizontally at intervals, and both ends of the connecting rods 434 are arranged on the partition. The bracket 23 is used to install a guide rail 24, and a chain 241 is arranged on the guide rail 24. A conveying motor 25 is arranged on the side of the guide rail 24 close to the separation disk 10. The chain 241 is driven to rotate on the guide rail 24 by the conveying motor 25. A moving platform 26 is arranged on the chain 241, and the moving platform 26 is connected to the chain 241. The chain 241 is driven to move by the rotation of the conveying motor 25, and the moving platform 26 can be driven to move between the placement plate 22 and the cloth disk 11. A connecting plate 261 is provided at the bottom of the movable platform 26, and a lifting component 262 is installed at the bottom of the connecting plate 261. The lifting component 262 adopts an electric cylinder, and an air pump box 27 is provided at the telescopic end of the lifting component 262. A plurality of air pipes 28 are provided on both sides of the air pump box 27, and a suction cup 29 is provided at the bottom of the air pipe 28. The airbag base cloth 221 is grasped and released by the air pump box 27 through suction and jetting.

[0044] When loading the airbag base cloth 221, the lifting component 262 on the loading component 20 on one side drives the suction cup 29 to move downward until it contacts the airbag base cloth 221 on the placement plate 22, and the air pump box 27 draws air to suck the airbag base cloth 221. The conveying motor 25 rotates to drive the airbag base cloth 221 from one side of the placement plate 22 to one side of the cloth tray 11, and the air is deflated through the air pump box 27 to separate the suction cup 29 from the airbag base cloth 221. This is repeated many times to place multiple pieces of airbag base cloth 221 on the cloth tray 11 on the separation tray 10. The stepper motor 15 rotates to rotate the unloaded cloth tray 11 to the bottom of the air pump box 27, and the above actions are repeated to realize the loading of the airbag base cloth 221.

[0045] When unloading the airbag base fabric 221, the suction cup 29 is driven by the lifting component 262 to approach the cloth tray 11 directly below, and the air pump box 27 sucks air to suck the sewn airbag base fabric 221. The airbag base fabric 221 is moved from one side of the cloth tray 11 to the side of the unloading component 30 by the conveying motor 25 to complete the unloading.

[0046] like Figure 5-Figure 13 As shown, a heat sealing assembly 40 is arranged between the loading assembly 20 and the unloading assembly 30, and is used to heat seal the airbag base cloth 221 placed on the cloth disk 11. The heat sealing assembly 40 includes a fixed frame, a driving member 1 41, a driving member 2 43, a support assembly and a heat sealing unit. The fixed frame is arranged on the side of the separation disk 10, the fixed end of the driving member 1 41 is arranged on the fixed frame, and the movable end of the driving member 1 41 is connected to the driving member 2 43, which is used to adjust the vertical height of the support assembly. The support assembly includes two symmetrically arranged mounting plates 42. The heat sealing unit includes a transverse heat sealing member and two longitudinal heat sealing members. The two longitudinal heat sealing members are symmetrically arranged on the two mounting plates 42, and the transverse heat sealing member is arranged between the two mounting plates 42. The two ends of the driving member 2 43 are respectively connected to the transverse heat sealing member and the longitudinal heat sealing member for driving the longitudinal heat sealing member to move axially along the mounting plate 42, and to drive the transverse heat sealing member to move transversely between the two mounting plates 42. By moving the driving member 1 41 up and down, the driving member 2 43 , the mounting plate 42 , the transverse heat-sealing member and the longitudinal heat-sealing member can be moved up and down in height as a whole.

[0047] The middle of the mounting plate 42 is hollowed out to reduce the weight of the mounting plate 42. The fixed end of the driving member 43 is connected to the movable end of the driving member 1 41. The movable end of the driving member 43 is provided with a telescopic rod. The telescopic rod is provided with a transmission rod 432 parallel to the telescopic rod through a connecting member 431. The transmission rod 432 is connected to the transverse heat sealing member on the side away from the telescopic rod. The side of the telescopic rod away from the driving member 2 43 is provided with a limiting rod 1 44 and a limiting rod 2 48 in parallel with each other in sequence. The limiting rod 1 44 is perpendicular to the telescopic rod. Both sides of the limiting rod 1 44 and the limiting rod 2 48 are connected to the longitudinal heat sealing member. The driving member 1 41 and the driving member 2 43 are both electric cylinders. It can be understood that: the two ends of the transmission rod 432 are connected to the limiting rod 1 44 and the transverse heat sealing member respectively, and the limiting rod 1 44 is connected to the two longitudinal heat sealing members, that is, when the telescopic rod is telescopic, it can synchronously drive the transverse heat sealing member and the longitudinal heat sealing member to move.

[0048] The longitudinal heat sealing member includes a heat sealing block 1 45 and a heat sealing block 2 46 which are arranged at the bottom of the mounting plate 42 and are parallel to each other. The heat sealing block 1 45 and the heat sealing block 2 46 are arranged on the two mounting plates 42. The heat sealing blocks 1 45 and the heat sealing blocks 2 46 on the two mounting plates 42 are symmetrical to each other. The heat sealing block 1 45 and the heat sealing block 2 46 are respectively provided with a slide bar 1 451 and a slide bar 2 461. A limit plate 423 is axially symmetrically arranged at the bottom of the mounting plate 42. The limit plate 423 is used to support the slide bar 1 451 and the slide bar 2 461. 51 and slide bar 2 461, heat sealing block 1 45 and heat sealing block 2 46 are slidably connected with limit plate 423 through slide bar 1 451 and slide bar 2 461 respectively, one end of slide bar 2 461 passing through limit plate 423 is inserted into limit bar 1 44, one end of slide bar 1 451 passing through limit plate 423 is inserted into limit bar 1 44 and limit bar 2 48 in sequence, heat sealing block 1 45 and heat sealing block 2 46 are connected for reverse rotation, so that heat sealing block 1 45 and heat sealing block 2 46 move synchronously in reverse direction. Tooth plates 452 are arranged on the side walls of heat sealing block 1 45 and heat sealing block 2 46 that are close to each other, and a gear 4221 is arranged between the two tooth plates 452, the gear 4221 is meshed with tooth plates 452, and the gear 4221 is arranged on shaft 1 422, and the upper end of shaft 1 422 is rotatably arranged in mounting plate 42. During the movement, the two tooth plates 452 push the gear 4221 to perform unidirectional rotational movement, and then the gear 4221 reacts on the two tooth plates 452, so that the heat sealing block 1 45 and the heat sealing block 2 46 can achieve synchronous reverse movement. The bottom of the heat sealing block 1 45 and the heat sealing block 2 46 are both provided with a heat sealing wheel 2 47, which is used to contact with the airbag base fabric 221 for heat sealing, and a heating element is provided inside the heat sealing wheel 2 47, and the heating element adopts a conventional heating device such as an electric heating plate or a resistance wire.

[0049] Working process of longitudinal heat seal:

[0050] The driving member 2 43 drives the telescopic rod to move, and the telescopic rod will synchronously drive the limit rod 1 44 to move, and then the limit rod 1 44 will drive the slide bar 2 461 to move, and then the slide bar 2 461 will drive the heat sealing block 2 46 to move synchronously, and then the tooth plate 452 on the heat sealing block 2 46 is meshed with the gear 4221, and the tooth plate 452 moves to drive the gear 4221 to rotate, thereby driving the tooth plate 452 on the heat sealing block 1 45 to move, thereby driving the heat sealing block 1 45 to move in the opposite direction of the heat sealing block 2 46. During the movement of the heat sealing blocks 1 45 and 2 46, the heat sealing wheels 2 47 at the bottom of the heat sealing blocks 1 45 and 2 46 will heat seal and sew the airbag base fabric 221. When the heat sealing wheel 2 47 contacts the airbag base fabric 221 for heat sealing, the side of the mounting plate 42 is against the sealing frame 12 of the fabric tray 11, and the airbag base fabric 221 can be fixed.

[0051] The transverse heat sealing part includes a second connecting plate 421, a third connecting plate 424 is arranged below the second connecting plate 421, a first slide groove 425 is arranged at the bottom of the third connecting plate 424, a second slide groove 426 is arranged on the side of the third connecting plate 424, the first slide groove 425 and the second slide groove 426 are connected to each other, and two symmetrical sliding parts are slidingly arranged in the first slide groove 425, and the two sliding parts are respectively connected to the transmission rod 432 through two connecting rods 434, and the two connecting rods 434 form a V-shaped structure, and the two connecting rods 434 drive the two sliding parts to move closer to or away from each other.

[0052] The sliding member includes a slider 1 427 and a slider 2 428. The slider 1 427 is slidably arranged in the slide groove 1 425. The slider 2 428 is arranged on the side of the slider 1 427 facing the slide groove 2 426. The slider 2 428 is slidably arranged in the slide groove 2 426. The slider 2 428 partially protrudes from the slide groove 2 426. The part of the slider 2 428 protruding from the slide groove 2 426 is provided with a connecting hole. One end of the two connecting rods 434 is rotatably connected to the connecting hole through the rotating shaft 3 435. The other ends of the two connecting rods 434 are rotatably connected to the transmission rod 432 through the rotating shaft 2 433. A heat sealing wheel 1 429 is arranged at the bottom of the slider 1 427. The heat sealing wheel 1 429 is used to contact with the airbag base fabric 221 for heat sealing. A heating element is arranged inside the heat sealing wheel 1 429. The heating element adopts a conventional heating device such as an electric heating plate or a resistance wire.

[0053] The working process of transverse heat seal is:

[0054] The driving member 2 43 drives the telescopic rod to perform telescopic movement, and the telescopic rod synchronously drives the transmission rod 432 to move. The transmission rod 432 will drive the two connecting rods 434 to open or close during the telescopic process. When the connecting rod 434 is opened, the two connecting rods 434 will drive the two sliders 427 to move away from each other. At this time, the heat sealing wheels 429 set at the bottom of the two sliders 427 will heat seal the airbag base fabric 221. Conversely, when the connecting rod 434 is closed, the heat sealing wheels 429 set at the bottom of the two sliders 427 will also heat seal the airbag base fabric 221, thereby completing the sewing of the airbag base fabric 221.

[0055] By setting the longitudinal heat seal and the transverse heat seal to work synchronously (such as Figure 8 and Fig. 9 The movement direction is indicated by the arrow, wherein the dotted outline is a schematic diagram of the appearance of the airbag base fabric 221), to achieve the function of fixing the airbag base fabric 221 to each other, thereby ensuring that the airbag base fabric 221 will not be misplaced during processing.

[0056] In order to better meet the sewing requirements of airbag base cloths of different sizes, a driving member three is arranged between the driving member one 41 and the driving member two 43. The driving member three includes a two-way cylinder 411 and a connecting rod 412. The fixed end of the two-way cylinder 411 is connected to the movable end of the driving member one 41. The two-way cylinder 411 can realize the synchronous extension and retraction of the movable ends on both sides. The two movable ends of the two-way cylinder 411 are both provided with a connecting rod 412. The connecting rod 412 is connected to the mounting plate 42. The driving member two 43 is arranged at the fixed end of the two-way cylinder 411. The movement direction of the driving member two 43 is perpendicular to the movement direction of the two-way cylinder 411. The two-way cylinder 411 can drive the two connecting rods 412 to move closer to or away from each other.

[0057] In order to adjust the distance between the two mounting plates, the second connecting plate 421 is configured to include an inner plate and an outer plate. The ends of the inner plate and the outer plate that are far from each other are symmetrically arranged on the side walls of the two mounting plates 42 that are close to each other. The ends of the inner plate and the outer plate that are close to each other are slidably connected. The outer plate is a hollow structure. The inner plate is partially slidably arranged inside the outer plate. Two sliding parts are respectively located below the inner plate and the outer plate. In this way, the inner plate and the outer plate of the second connecting plate 421 can be contracted or pulled out to adjust the length. The transmission rod 432 can drive the mounting plates 42 on both sides to move closer or farther from each other, ensuring that the suction cup 29 can grab the airbag base fabrics 221 of different sizes.

[0058] The process of adjusting the mounting plate of the drive part three:

[0059] First, remove the connecting plate three 424, the limit rod one 44, and the limit rod two 48; then, when adjusting the relative distance between the two mounting plates 42, the inner plate and the outer plate of the connecting plate two 421 are also adjusted synchronously with each other. When the relative distance between the two mounting plates 42 is adjusted and fixed, install the corresponding connecting plate three 424. At the same time, according to the distance between the mounting plates 42 at this time, select the limit rod one 44 and the limit rod two 48 of the corresponding length for installation, thereby realizing the process adjustment.

[0060] The complete working process of the present invention is as follows: first, stack the airbag base fabric 221 on the placement plate 22 of the loading assembly 20 in sequence, and according to the stacking height of the airbag base fabric 221, drive the lifting assembly 1 21 to lift and lower the height and adjust it to a suitable height position; then, load the airbag base fabric 221, and drive the moving platform 26 to approach the placement plate 22 by the conveying motor 25, so that the lifting assembly 262 located below the moving platform 26 moves to the top of the airbag base fabric 221, and then the lifting assembly 262 on the loading assembly 20 drives the suction cup 29 to move downward until the suction cup 29 contacts the airbag base fabric 221 on the placement plate 22, and the airbag base fabric 221 is sucked out by the air pump box 27. 1 is sucked, and the conveying motor 25 is rotated again to drive the airbag base fabric 221 to be conveyed from the placement plate 22 to the cloth tray 11, and the air pump box 27 is deflated to separate the suction cup 29 from the airbag base fabric 221. The above movement is repeated multiple times to stack multiple pieces of airbag base fabrics 221 on the cloth tray 11 on the separation tray 10. The detection unit 13 is used to detect whether the airbag base fabric 221 is placed on the cloth tray 11. When the detection unit 13 detects that the airbag base fabric 221 is stacked on the cloth tray 11, the separation tray 10 is controlled by the stepping motor 15 at the bottom to rotate at a set angle, and the next adjacent cloth tray 11 is rotated to the side of the feeding assembly 20 to feed the next group of airbag base fabrics 221.

[0061] The cloth plate 11 on which the airbag base cloth 221 has been stacked, rotates to one side of the heat sealing assembly 40 under the control of the stepping motor 15 to control the separation plate 10. When the cloth plate 11 is located below the mounting plate 42, the mounting plate 42 is driven downward as a whole by the driving member 1 41, so that the heat sealing wheel 1 429 and the heat sealing wheel 2 47 are close to the airbag base cloth 221. The limit rod 1 44 is pushed by the telescopic rod of the driving member 2 43, and the limit rod 1 44 drives the sliding bar 2 461 to move synchronously. While the sliding bar 2 461 slides on the limit plate 423, it drives the heat sealing block 2 46 to move. When the heat sealing block 2 46 moves, the tooth plate 452 provided inside the heat sealing block 2 46 meshes with the gear 4221, driving the gear 4221 to rotate. While the gear 4221 rotates, it engages with The tooth plate 452 in the heat sealing block 1 45 is meshed, driving the heat sealing block 1 45 to move, so that the heat sealing block 1 45 and the heat sealing block 2 46 move synchronously in opposite directions, and the heat sealing wheels 2 47 at the bottom of the heat sealing blocks 1 45 and 2 46 are heat-sealed on both sides of the airbag base fabric 221 in the longitudinal direction. When the telescopic rod of the driving member 2 43 is retracted, the telescopic rod drives the transmission rod 432 to move synchronously, and the transmission rod 432 pushes the connecting rod 434, so that the two connecting rods 434 rotate around the rotating shaft 2 433 and open to both sides at the same time, and the heat sealing wheels 1 429 on both sides are pushed by the connecting rod 434 to move along the slide groove 1 425, so as to heat-seal the airbag base fabric 221 in the transverse direction. The above two edge sealing operations are carried out synchronously when the telescopic rod is extended and retracted by the driving member 2 43 (such as Figure 8 and Fig. 9 As shown by the arrow), the edge sealing of the airbag base fabric 221 is achieved.

[0062] When the processing of the airbag base cloth 221 is completed, the stepper motor 15 controls the cloth tray 11 to rotate to the side of the unloading component 30, and drives the suction cup 29 to contact the cloth tray 11 directly below through the lifting component 262, and sucks air through the air pump box 27 to suck the processed airbag base cloth 221, and moves the airbag base cloth 221 from the side of the cloth tray 11 to the side of the unloading component 30 through the conveying motor 25 to complete the unloading, and repeat the above process to realize the automatic heat sealing process.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An airbag edge sealing device, comprising a separation plate, a feeding assembly, a feeding assembly and a heat sealing assembly; characterized in that: The loading assembly and the unloading assembly are respectively arranged on both sides of the separation plate for placing and receiving the airbag base fabric, and a heat sealing assembly for heat-sealing the airbag base fabric is arranged between the loading assembly and the unloading assembly; The loading assembly and the unloading assembly have the same structure, and both the loading assembly and the unloading assembly include a support frame, a lifting assembly and a moving assembly. The support frame is arranged on the side of the separation disk, the lifting assembly is arranged at the lower part of the support frame, and is used to place and adjust the height position of the airbag base cloth. The moving assembly is arranged at the upper part of the support frame, and is used to move the airbag base cloth from the loading assembly to the separation disk and move the airbag base cloth from the separation disk to the unloading assembly. The heat sealing assembly comprises a fixed frame, a driving member 1, a driving member 2, a support assembly and a heat sealing unit, wherein the fixed frame is arranged on the side of the separation disk, the fixed end of the driving member 1 is arranged on the fixed frame, the movable end of the driving member 1 is connected with the driving member 2 for adjusting the vertical height of the support assembly, the support assembly comprises two symmetrically arranged mounting plates, the heat sealing unit comprises a transverse heat sealing member and two longitudinal heat sealing members, the two longitudinal heat sealing members are symmetrically arranged on the two mounting plates, the transverse heat sealing member is arranged between the two mounting plates, the two ends of the driving member 2 are respectively connected with the transverse heat sealing member and the longitudinal heat sealing member for driving the longitudinal heat sealing member to move along the axial direction of the mounting plate, and driving the transverse heat sealing member to move between the two mounting plates; The movable end of the driving member 2 is provided with a telescopic rod, and a limiting rod 1 and a limiting rod 2 which are parallel to each other are sequentially provided on the side of the telescopic rod away from the driving member 2, the limiting rod 1 is transmission-connected with the telescopic rod, and both sides of the limiting rod 1 and the limiting rod 2 are transmission-connected with the longitudinal heat-sealing member; The longitudinal heat sealing part includes a heat sealing block 1 and a heat sealing block 2 which are arranged at the bottom of the mounting plate and are parallel to each other. The heat sealing block 1 and the heat sealing block 2 are respectively provided with a slide bar 1 and a slide bar 2. Limiting plates are axially symmetrically arranged on both sides of the bottom of the mounting plate. The heat sealing block 1 and the heat sealing block 2 are respectively slidably connected with the limiting plates through the slide bar 1 and the slide bar 2. One end of the slide bar 2 passing through the limiting plate is inserted into the limiting rod 1, and one end of the slide bar 1 passing through the limiting plate is inserted into the limiting rod 1 and the limiting rod 2 in sequence. The heat sealing block 1 and the heat sealing block 2 are connected in reverse rotation so that the heat sealing block 1 and the heat sealing block 2 move synchronously in reverse directions.

2. The airbag edge sealing device according to claim 1, characterized in that: Several cloth trays for placing the airbag base cloth are arranged around the separation tray, sealing frames for positioning the airbag base cloth are arranged around the cloth tray, a detection unit for detecting whether the airbag base cloth is placed in place is arranged in the middle of the cloth tray, a base is arranged at the bottom of the separation tray for fixing the separation tray, a stepper motor is installed inside the base, and the output shaft of the stepper motor is connected to the separation tray.

3. The airbag edge sealing device according to claim 2, characterized in that: The middle of the mounting plate is hollowed out, the fixed end of the driving member 2 is connected to the movable end of the driving member 1, the telescopic rod is located between the two mounting plates and parallel to the mounting plates, a transmission rod parallel to the telescopic rod is provided on the telescopic rod through a connecting member, the transmission rod is connected to the transverse heat sealing member at a side away from the telescopic rod, the limiting rod 1 is perpendicular to the telescopic rod, and the driving member 1 and the driving member 2 both adopt electric cylinders.

4. The airbag edge sealing device according to claim 3, characterized in that: The side walls of the heat sealing block 1 and the heat sealing block 2 close to each other are both provided with tooth plates, a gear is provided between the two tooth plates, the gear and the tooth plates are meshed with each other, the gear is provided on the rotating shaft 1, and the upper end of the rotating shaft 1 is rotatably provided in the mounting plate.

5. The airbag edge sealing device according to claim 4, characterized in that: The transverse heat sealing part includes a connecting plate 2, a connecting plate 3 is arranged below the connecting plate 2, a slide groove 1 is arranged at the bottom of the connecting plate 3, a slide groove 2 is arranged on the side of the connecting plate 3, the slide groove 1 and the slide groove 2 are connected to each other, and two symmetrical sliding parts are slidably arranged in the slide groove 1, and the two sliding parts are respectively connected to the transmission rod through two connecting rods, and the two connecting rods form a V-shaped structure, and the two connecting rods drive the two sliding parts to move closer to or away from each other.

6. The airbag edge sealing device according to claim 5, characterized in that: The sliding member includes a slider 1 and a slider 2, wherein the slider 1 is slidably arranged in the slide groove 1, a slider 2 is arranged on the side of the slider 1 facing the slide groove 2, the slider 2 is slidably arranged in the slide groove 2, a portion of the slider 2 protrudes out of the slide groove 2, a connecting hole is provided in the portion of the slider 2 protruding out of the slide groove 2, one end of the two connecting rods is rotatably connected to the connecting hole, and the other ends of the two connecting rods are rotatably connected to the transmission rod.

7. The airbag edge sealing device according to claim 6, characterized in that: The bottom of the heat sealing block 1 and the heat sealing block 2 are both provided with a heat sealing wheel 2, and the bottom of the slider 1 is provided with a heat sealing wheel 1. The heat sealing wheel 1 and the heat sealing wheel 2 are both used for contacting with the airbag base cloth for heat sealing, and the heat sealing wheel 1 and the heat sealing wheel 2 are both provided with heating elements.

8. An airbag edge sealing device according to any one of claims 5 to 7, characterized in that: A driving member three is arranged between the driving member one and the driving member two, and the driving member three includes a bidirectional cylinder and a connecting rod. The fixed end of the bidirectional cylinder is connected to the movable end of the driving member one, and the two movable ends of the bidirectional cylinder are both provided with connecting rods, and the connecting rods are connected to the mounting plate. The driving member two is arranged at the fixed end of the bidirectional cylinder, and the bidirectional cylinder can drive the two connecting rods to move closer to or away from each other.

9. The airbag edge sealing device according to claim 8, characterized in that: The connecting plate three includes an inner plate and an outer plate, and the ends of the inner plate and the outer plate that are far away from each other are symmetrically arranged on the side walls of the two mounting plates that are close to each other. The ends of the inner plate and the outer plate that are close to each other are slidingly connected, and the two sliding parts are respectively located under the inner plate and the outer plate.

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