A sewing machine for airbag bags

Abstract

This utility model relates to the field of airbag sewing technology, and provides a sewing machine for airbag bags. It includes a bottom support plate, a processing panel fixedly connected to the top of the bottom support plate, a control panel on the side of the processing panel, a sewing device on the top of the processing panel, a pressing device on the side of the bottom support plate, and a thread groove on the top of the processing panel. A negative pressure adsorption device, including a sealing plate fixedly connected to the side of the bottom support plate, is also provided on the side of the bottom support plate, and an air outlet is provided on the side of the bottom support plate. This technical solution solves the technical problem of easy deviation in existing sewing machines when sewing airbag bags.

Description

Technical Field

[0001] This utility model relates to the field of airbag sewing technology, specifically to a sewing machine for safety airbag bags. Background Technology

[0002] In the field of airbag sewing technology, traditional sewing machines often experience misalignment when sewing airbags because the airbag material is thin and light, and the sewing process requires positioning. This not only affects sewing efficiency but may also lead to substandard airbag quality.

[0003] According to a published information (publication number: CN210945982U), a positioning system for a safety airbag pattern sewing machine includes a worktable, a sewing machine, a material box, a positioning component, and a control component. The sewing machine is mounted on the worktable. A bottom shuttle and the positioning component are located at the bottom of the worktable. The bottom shuttle is positioned directly below the sewing machine needle and offset from the positioning component. The sewing machine includes a main body and a pressure plate mounted on the main body, with the pressure plate positioned directly above the positioning component. The positioning component includes a positioning pin, a cylinder bracket, and several cylinders. The positioning pin is connected to the cylinders via a tooling plate. The cylinder bracket is fixed to the bottom of the worktable, and the cylinders are fixedly mounted on the cylinder bracket. This system solves the problem in existing technology where operators, when sewing different earpieces with the same main positioning hole but different auxiliary positioning holes at the same workstation, often place the earpieces backwards because they can only be positioned using the main positioning hole. This reduces the operator's error rate, decreases the number of earpiece retrievals, and improves operational smoothness.

[0004] The aforementioned application uses positioning components and cylinders to position the airbag bag, preventing displacement during sewing. However, this positioning system is relatively complex and requires additional driving components such as cylinders, increasing cost and maintenance difficulty. Therefore, we propose a sewing machine for airbag bags. Utility Model Content

[0005] To overcome the above-mentioned defects, this utility model provides a sewing machine for airbags, which solves the technical problem that sewing machines in the prior art are prone to deviation when sewing airbags.

[0006] According to one aspect, at least one embodiment of the present invention provides a sewing machine for airbag bags, comprising: a bottom support plate, a processing panel fixedly connected to the top of the bottom support plate, a control panel provided on the side of the processing panel, a sewing device provided on the top of the processing panel, a pressing device provided on the side of the bottom support plate, and a thread groove provided on the top of the processing panel.

[0007] The pressing device includes a mounting plate, which is fixedly connected to the side of the bottom support plate. A dual-output shaft motor is fixedly connected to the side of the mounting plate. A threaded rod is fixedly connected to the output shaft of the dual-output shaft motor. A threaded sleeve is threadedly connected to the circumferential surface of the threaded rod. A pull plate is fixedly connected to the circumferential surface of the threaded sleeve. A pull column is hinged to one end of the pull plate. A connecting pressure plate is fixedly connected to the end of the pull column away from the pull plate. A pressure sleeve is fixedly connected through the side of the connecting pressure plate. A pressure spring is fixedly connected to the top of the inner side of the pressure sleeve. A pressure column is fixedly connected to the end of the pressure spring away from the pressure sleeve.

[0008] For example, in a sewing machine for airbag bags provided in at least one embodiment of this utility model, a limiting sleeve is further included. The end of the threaded rod away from the dual-output shaft motor is rotatably connected to the limiting sleeve, and the end of the limiting sleeve away from the threaded rod is fixedly connected to the top of the processing panel. Its function is to limit the threaded rod, so that the threaded rod is more stable when rotating, and to avoid the phenomenon of the threaded rod deviating or shaking during the rotation, thereby improving the overall stability of the pressing device.

[0009] The circumferential surface of the pull-down column penetrates and slides through the bottom of the processing panel. The side section of the connecting pressure plate is set in a U-shape, which allows the connecting pressure plate to better cooperate with the processing panel and stably press the airbag. At the same time, the U-shaped side section design can also increase the structural strength of the connecting pressure plate and improve its service life.

[0010] The circumferential surface of the pressure column is slidably connected to the inner circumferential surface of the pressure sleeve. Several pressure columns and pressure sleeves are provided and symmetrically distributed along the vertical central axis of the processing panel. Their function is to enable the pressure column to slide stably within the pressure sleeve, so as to uniformly and stably press the airbag bag and ensure the quality of sewing.

[0011] The dual-output shaft motor and threaded rod are provided in two quantities and are symmetrically distributed along the vertical central axis of the processing panel. The number of thread grooves is provided and is linearly arrayed along the top of the processing panel. Their function is to enable the dual-output shaft motor to drive the two threaded rods to rotate simultaneously, which in turn drives the pull plate to move through the threaded sleeve, so as to simultaneously press both sides of the airbag, thereby improving work efficiency. At the same time, the large number of thread grooves facilitates the thread routing when sewing airbags of different sizes, thereby improving sewing flexibility.

[0012] According to another aspect, at least one embodiment of the present invention also provides a sewing machine for airbags, comprising: a negative pressure adsorption device, wherein the negative pressure adsorption device is provided on the side of the bottom support plate, the negative pressure adsorption device includes a sealing plate, the sealing plate is fixedly connected to the side of the bottom support plate, an air outlet is provided on the side of the bottom support plate, a connecting rod is fixedly connected to the inner wall of the air outlet, a connecting shaft is fixedly connected through and on the side of the connecting rod, a fan blade is fixedly connected to one end of the connecting shaft, a driven bevel gear is fixedly connected to the end of the connecting shaft away from the fan blade, and a driving bevel gear is fixedly connected to the other output shaft of the dual-output shaft motor, the function of which is to perform negative pressure adsorption on the airbag to increase the flatness of the airbag.

[0013] For example, in a sewing machine for airbags provided in at least one embodiment of this utility model, a one-way damper is further included. The side of the bottom processing panel is provided with a one-way damper, and a vent valve is fixedly connected through the side of the sealing plate. Its function is to control the one-way flow of airflow through the one-way damper during negative pressure adsorption, so as to avoid the backflow of outside air from affecting the negative pressure effect. At the same time, the setting of the vent valve can quickly release the negative pressure between the sealing plate and the processing panel when it is necessary to release the negative pressure adsorption, so as to facilitate the taking and putting in the airbag.

[0014] The driving bevel gear and the driven bevel gear mesh with each other. The driving bevel gear has more teeth than the driven bevel gear. Its function is to achieve the regulation of the fan blade speed by the dual-output shaft motor through gear meshing transmission. Because the driving bevel gear has more teeth than the driven bevel gear, when the driving bevel gear rotates once, the driven bevel gear will rotate multiple times, thereby improving the rotational efficiency of the fan blades.

[0015] The interior of the one-way damper is through the interior of the sealing plate. There are two one-way dampers, which are symmetrically distributed along the vertical central axis of the processing panel. Their function is to ensure that the airflow is unidirectional during negative pressure adsorption, so as to avoid the backflow of outside air affecting the negative pressure effect. At the same time, the setting of two one-way dampers can make the negative pressure adsorption more uniform and improve the stability of fixing the airbag.

[0016] The interior of the wiring groove runs through the interior of the sealing plate. There are two fan blades, connecting shafts, driving bevel gears and driven bevel gears, which are symmetrically distributed along the vertical central axis of the processing panel. Their function is to generate a uniform airflow when the fan blades rotate. Combined with the design of the wiring groove, it avoids interference with the sewing work. At the same time, the setting of two fan blades improves the efficiency of negative pressure adsorption.

[0017] The beneficial effects of the embodiments of this utility model are as follows: 1. In this utility model, the stable pressing of the airbag is achieved through the cooperation of components such as the mounting plate, dual-axis motor, and threaded rod in the pressing device. The rotation of the threaded rod drives the threaded sleeve to move, and the cooperation of the pull plate and pull column allows the connecting pressure plate to press down on the airbag. Simultaneously, the design of the pressure spring and pressure column allows for adaptive adjustment according to the thickness of the airbag, ensuring the stability of the pressing and the quality of the sewing. Furthermore, the dual-axis motor allows the two threaded rods to rotate simultaneously, achieving synchronous pressing of both sides of the airbag and improving work efficiency.

[0018] 2. In this invention, the airbag is fixed by negative pressure adsorption through the cooperation of components such as the sealing plate, air outlet, and connecting rod in the negative pressure adsorption device, increasing the flatness and stability of the airbag during the sewing process. The output shaft of the dual-shaft motor drives the active bevel gear to rotate. The meshing transmission between the active and driven bevel gears causes the connecting shaft to drive the fan blades to rotate within the air outlet, thereby creating negative pressure between the sealing plate and the processing panel, adsorbing and fixing the airbag. This negative pressure adsorption method avoids the clamping damage to the airbag caused by traditional mechanical clamps, ensuring the integrity of the airbag. Simultaneously, the one-way damper ensures unidirectional airflow, preventing backflow of outside air from affecting the negative pressure effect and improving the stability of the negative pressure adsorption. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional side view structural schematic diagram of the present invention; Figure 3 This is a three-dimensional cross-sectional structural schematic diagram of the present invention; Figure 4 This is a three-dimensional cross-sectional structural schematic diagram of the pressing device of this utility model; Figure 5 This is a three-dimensional enlarged structural schematic diagram of the negative pressure adsorption device of this utility model.

[0021] In the diagram: 1. Bottom support plate; 2. Processing panel; 3. Control panel; 4. Sewing device; 5. Pressing device; 501. Mounting plate; 502. Dual-shaft motor; 503. Threaded rod; 504. Threaded sleeve; 505. Pull plate; 506. Pull-down column; 507. Connecting pressure plate; 508. Pressure sleeve; 509. Pressure spring; 510. Pressure column; 6. Cable tray; 7. Limiting sleeve; 8. Negative pressure adsorption device; 801. Sealing plate; 802. Air outlet; 803. Connecting rod; 804. Connecting shaft; 805. Fan blade; 806. Driven bevel gear; 807. Driven bevel gear; 9. One-way damper; 10. Vent valve. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0023] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0024] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] like Figures 1-5 As shown, a sewing machine for airbag bags according to an embodiment of the present invention is provided, including: a bottom support plate 1, a processing panel 2 fixedly connected to the top of the bottom support plate 1, a control panel 3 provided on the side of the processing panel 2, a sewing device 4 provided on the top of the processing panel 2, a pressing device 5 provided on the side of the bottom support plate 1, and a thread groove 6 provided on the top of the processing panel 2.

[0029] The pressing device 5 includes a mounting plate 501, which is fixedly connected to the side of the bottom support plate 1. A dual-output shaft motor 502 is fixedly connected to the side of the mounting plate 501. A threaded rod 503 is fixedly connected to the output shaft of the dual-output shaft motor 502. A threaded sleeve 504 is threadedly connected to the circumferential surface of the threaded rod 503. A pull plate 505 is fixedly connected to the circumferential surface of the threaded sleeve 504. A pull column 506 is hinged to one end of the pull plate 505. A connecting pressure plate 507 is fixedly connected to the end of the pull column 506 away from the pull plate 505. A pressure sleeve 508 is fixedly connected through the side of the connecting pressure plate 507. A pressure spring 509 is fixedly connected to the top of the inner side of the pressure sleeve 508. A pressure column 510 is fixedly connected to the end of the pressure spring 509 away from the pressure sleeve 508.

[0030] In some examples, the end of the threaded rod 503 away from the dual-output shaft motor 502 is rotatably connected to a limiting sleeve 7. The end of the limiting sleeve 7 away from the threaded rod 503 is fixedly connected to the top of the processing panel 2. Its function is to limit the threaded rod 503, making the threaded rod 503 more stable when rotating, avoiding the phenomenon of the threaded rod 503 shifting or shaking during rotation, thereby improving the overall stability of the pressing device 5.

[0031] The circumferential surface of the pull-down column 506 is slidably connected to the bottom of the processing panel 2. The side section of the connecting pressure plate 507 is set in a U-shape. Its function is to enable the connecting pressure plate 507 to better cooperate with the processing panel 2 and to stably press the airbag. At the same time, the U-shaped side section design can also increase the structural strength of the connecting pressure plate 507 and improve its service life.

[0032] The circumferential surface of the pressure column 510 is slidably connected to the inner circumferential surface of the pressure sleeve 508. Several pressure columns 510 and pressure sleeves 508 are provided and symmetrically distributed along the vertical central axis of the processing panel 2. Their function is to enable the pressure column 510 to slide stably in the pressure sleeve 508, so as to uniformly and stably press the airbag bag and ensure the quality of sewing.

[0033] There are two dual-axis motors 502 and threaded rods 503, symmetrically distributed along the vertical central axis of the processing panel 2. There are several thread grooves 6, arranged linearly along the top of the processing panel 2. Their function is to enable the dual-axis motors 502 to drive the two threaded rods 503 to rotate simultaneously, which in turn drives the pull plate 505 to move through the threaded sleeve 504, thereby pressing both sides of the airbag bag at the same time, improving work efficiency. At the same time, the large number of thread grooves 6 facilitates the thread routing when sewing airbag bags of different sizes, improving sewing flexibility.

[0034] For example, such as Figures 1-5 As shown: When sewing airbag bags is required, the worker first lays the airbag bag flat on the processing panel 2, ensuring it is positioned correctly in the wiring groove 6. Then, when the dual-output shaft motor 502 is started via the control panel 3, its two output shafts rotate simultaneously, thereby driving the two threaded rods 503 to rotate. Since the threaded rods 503 and threaded sleeves 504 are threadedly connected, the rotation of the threaded rods 503 is converted into linear movement of the threaded sleeves 504. The movement of the threaded sleeves 504 drives the pull plate 505 to move, which in turn drives the connecting pressure plate 507 and the pressure sleeve 508 to press down via the pull column 506. During this process, the pressure spring 509 applies a downward elastic force to the pressure column 510, allowing the pressure column 510 and the pressure sleeve 508 to better compress the airbag bag. Meanwhile, since there are two dual-output shaft motors 502 and threaded rods 503, and they are symmetrically distributed along the vertical central axis of the processing panel 2, it is possible to simultaneously press both sides of the airbag, thus improving work efficiency.

[0035] like Figures 1-5As shown, this invention illustrates a sewing machine for airbags in another embodiment of the present invention, comprising: a negative pressure adsorption device 8, the negative pressure adsorption device 8 including a sealing plate 801, the sealing plate 801 being fixedly connected to the side of a bottom support plate 1, an air outlet 802 being provided on the side of the bottom support plate 1, a connecting rod 803 being fixedly connected to the inner wall of the air outlet 802, a connecting shaft 804 being fixedly connected through and to the side of the connecting rod 803, a fan blade 805 being fixedly connected to one end of the connecting shaft 804, and a driven bevel gear 806 being fixedly connected to the other end of the connecting shaft 804 away from the fan blade 805, and a driving bevel gear 807 being fixedly connected to the other output shaft of a dual-output shaft motor 502, the function of which is to perform negative pressure adsorption on the airbag to increase the flatness of the airbag.

[0036] In some examples, the side of the bottom processing panel 2 is provided with a one-way damper 9, and the side of the sealing plate 801 is connected to a vent valve 10 through and fixedly connected. Its function is to control the one-way flow of airflow through the one-way damper 9 during negative pressure adsorption, so as to avoid the backflow of outside air from affecting the negative pressure effect. At the same time, the setting of the vent valve 10 can quickly release the negative pressure between the sealing plate 801 and the processing panel 2 when it is necessary to release the negative pressure adsorption, so as to facilitate the removal and placement of the safety airbag.

[0037] The driving bevel gear 807 and the driven bevel gear 806 mesh with each other. The driving bevel gear 807 has more teeth than the driven bevel gear 806. Their function is to achieve speed regulation of the fan blade 805 by the dual-output shaft motor 502 through gear meshing. Because the driving bevel gear 807 has more teeth than the driven bevel gear 806, when the driving bevel gear 807 rotates one revolution, the driven bevel gear 806 will rotate multiple revolutions, thereby improving the rotational efficiency of the fan blade 805.

[0038] The interior of the one-way damper 9 is connected to the interior of the sealing plate 801. There are two one-way dampers 9, which are symmetrically distributed along the vertical central axis of the processing panel 2. Their function is to ensure that the one-way dampers 9 can maintain the unidirectional flow of air during negative pressure adsorption, and avoid the backflow of outside air from affecting the negative pressure effect. At the same time, the setting of two one-way dampers 9 can make the negative pressure adsorption more uniform and improve the stability of fixing the airbag.

[0039] The interior of the wiring groove 6 penetrates the interior of the sealing plate 801. There are two fan blades 805, connecting shaft 804, driving bevel gear 807 and driven bevel gear 806, which are symmetrically distributed along the vertical central axis of the processing panel 2. Their function is to enable the fan blades 805 to generate a uniform airflow when rotating. In conjunction with the design of the wiring groove 6, it avoids interference with the sewing work. At the same time, the arrangement of two fan blades 805 improves the efficiency of negative pressure adsorption.

[0040] For example, such as 1~ Figure 5As shown, simultaneously, the other output shaft of the dual-output shaft motor 502 drives the active bevel gear 807 to rotate. Since the active bevel gear 807 meshes with the driven bevel gear 806, and the active bevel gear 807 has more teeth than the driven bevel gear 806, the driven bevel gear 806 rotates at a higher speed, thereby driving the connecting shaft 804 and the fan blade 805 to rotate at high speed. The rotation of the fan blade 805 generates airflow, which is blown out through the air outlet 802 and maintained in one direction by the one-way damper 9. This creates a negative pressure area between the sealing plate 801 and the processing panel 2, thereby securing the airbag with negative pressure. When it is necessary to release the negative pressure, the operator can control the dual-output shaft motor 502 to stop rotating via the control panel 3 and simultaneously open the vent valve 10 to quickly release the negative pressure between the sealing plate 801 and the processing panel 2, facilitating the removal and placement of the airbag. Through this design, the sewing machine for airbag bags of this utility model not only achieves stable pressing and negative pressure adsorption fixation of airbag bags, but also improves work efficiency and sewing quality.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An airbag bag sewing machine characterized by comprising: include: Bottom support plate (1), the top of the bottom support plate (1) is fixedly connected to a processing panel (2), the side of the processing panel (2) is provided with a control panel (3), the top of the processing panel (2) is provided with a sewing device (4), the side of the bottom support plate (1) is provided with a pressing device (5), and the top of the processing panel (2) is provided with a wiring groove (6). The pressing device (5) includes a mounting plate (501), which is fixedly connected to the side of the bottom support plate (1). A dual-output shaft motor (502) is fixedly connected to the side of the mounting plate (501). A threaded rod (503) is fixedly connected to the output shaft of the dual-output shaft motor (502). A threaded sleeve (504) is threadedly connected to the circumferential surface of the threaded rod (503). A pull plate (505) is fixedly connected to the circumferential surface of the threaded sleeve (504). One end of the pull plate (505) is hinged to a pull column (506), and the end of the pull column (506) away from the pull plate (505) is fixedly connected to a connecting pressure plate (507). A pressure sleeve (508) is fixedly connected through the side of the connecting pressure plate (507), and a pressure spring (509) is fixedly connected to the top of the inner side of the pressure sleeve (508). A pressure column (510) is fixedly connected to the end of the pressure spring (509) away from the pressure sleeve (508).

2. The sewing machine for a safety air bag according to claim 1, wherein The end of the threaded rod (503) away from the dual-output shaft motor (502) is rotatably connected to a limiting sleeve (7), and the end of the limiting sleeve (7) away from the threaded rod (503) is fixedly connected to the top of the processing panel (2).

3. The sewing machine for a safety air bag according to claim 2, wherein The circumferential surface of the pull-down column (506) is connected to the bottom of the processing panel (2) and is slidably connected. The side section of the connecting pressure plate (507) is set in a U-shape.

4. The sewing machine for a safety air bag according to claim 3, wherein The circumferential surface of the pressure column (510) is slidably connected to the inner circumferential surface of the pressure sleeve (508). The number of pressure columns (510) and pressure sleeves (508) is set to several, and they are symmetrically distributed along the vertical central axis of the processing panel (2).

5. The sewing machine for a safety air bag according to claim 4, wherein The number of dual-output shaft motors (502) and threaded rods (503) is two, and they are symmetrically distributed along the vertical central axis of the processing panel (2). The number of wiring grooves (6) is several, and they are arranged in a linear array along the top of the processing panel (2).

6. The sewing machine for a safety air bag according to claim 5, wherein A negative pressure adsorption device (8) is provided on the side of the bottom support plate (1). The negative pressure adsorption device (8) includes a sealing plate (801). The sealing plate (801) is fixedly connected to the side of the bottom support plate (1). An air outlet (802) is opened on the side of the bottom support plate (1). A connecting rod (803) is fixedly connected to the inner wall of the air outlet (802). A connecting shaft (804) is rotatably connected through the side of the connecting rod (803). A fan blade (805) is fixedly connected to one end of the connecting shaft (804). A driven bevel gear (806) is fixedly connected to the end of the connecting shaft (804) away from the fan blade (805). A driving bevel gear (807) is fixedly connected to the other output shaft of the dual-output shaft motor (502).

7. The sewing machine for a safety air bag according to claim 6, wherein The side of the bottom processing panel (2) is provided with a one-way air door (9), the side of the sealing plate (801) is penetrated and fixedly connected with a gas leakage valve (10).

8. The sewing machine for a safety air bag according to claim 7, wherein The driving bevel gear (807) and the driven bevel gear (806) are mutually engaged, and the number of teeth of the driving bevel gear (807) is more than that of the driven bevel gear (806).

9. The sewing machine for a safety air bag according to claim 8, wherein The inside of the one-way air door (9) penetrates the inside of the sealing plate (801), the number of the one-way air doors (9) is two, and they are symmetrically distributed along the vertical central axis of the processing panel (2).

10. The sewing machine for a safety air bag according to claim 9, wherein The inside of the wiring groove (6) penetrates the inside of the sealing plate (801), the number of the fan blades (805), the connecting shafts (804), the driving bevel gears (807) and the driven bevel gears (806) is two, and they are symmetrically distributed along the vertical central axis of the processing panel (2).

Images