Airbag cloth sewing positioning device

Abstract

The utility model discloses an air bag cloth sewing positioning device. The air bag cloth sewing positioning device comprises a positioning frame, an upper template and a lower template, the lower template is detachably mounted in the positioning frame, hinge mounting structures are symmetrically arranged at the two ends of the rear side of the top of the positioning frame, each hinge mounting structure comprises a hinge fixed to the rear side of the top of the positioning frame and sockets arranged at the two ends of the rear side of the top of the upper template, and the rotating shaft ends of the hinges are inserted into slots of the sockets, so that the upper template is movably connected with the positioning frame; a mounting hole is formed in the top of the socket in a penetrating mode, a screw hole is formed in the corresponding position of the hinge, when the hinge is inserted into the socket, the screw hole and the mounting hole are axially aligned, a bolt is screwed into the mounting hole and is in threaded connection with the screw hole, and a detachable rotating connection structure is formed. By means of the detachable connection design, the upper template and the lower template can be conveniently and rapidly detached and replaced, equipment maintenance and component replacement are achieved, only the templates need to be replaced when air bags of different models are sewn, and the use cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of airbag processing technology, and in particular to an airbag fabric sewing positioning device. Background Technology

[0002] In automotive safety systems, airbag fabric is an important component of airbags, and its sewing quality directly affects the deployment performance and protective effect of airbags at critical moments. With the rapid development of the automotive industry, the requirements for sewing precision, production efficiency, and product stability of airbag fabric are increasing day by day.

[0003] Currently, in the sewing process of airbag fabric, manual positioning or simple mechanical positioning methods are usually used. Manual positioning has problems such as low positioning accuracy, high labor intensity and low production efficiency, which makes it difficult to meet the needs of large-scale industrial production.

[0004] Traditional mechanical positioning devices have a relatively fixed structure and lack precise positioning. The airbag fabric is prone to shifting during the sewing process, resulting in deviations in the sewing trajectory and affecting product quality and pass rate.

[0005] Meanwhile, existing positioning devices are inconvenient to operate, such as difficulty in opening and closing the upper template and inflexible movement of the device, which increases the workload of operators. Increased friction during movement can affect processing quality and equipment lifespan.

[0006] In addition, most traditional positioning devices are integrated designs, which are complex to disassemble and maintain. When the equipment malfunctions or parts need to be replaced, it often takes a lot of time and manpower, which not only increases costs but also affects the normal production schedule.

[0007] Therefore, how to provide a sewing positioning device for airbag fabric is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0008] One objective of this invention is to provide an airbag fabric sewing positioning device. This invention utilizes a detachable connection design to facilitate the quick disassembly and replacement of the upper and lower templates, enabling equipment maintenance and component replacement. When sewing different types of airbags, only the template needs to be replaced, thus reducing operating costs.

[0009] An airbag fabric sewing positioning device according to an embodiment of the present utility model includes a positioning frame, an upper template, and a lower template;

[0010] The lower template is detachably installed in the positioning frame. The positioning frame has symmetrical hinge installation structures at both ends of the top rear side. The hinge installation structure includes a hinge fixed to the top rear side of the positioning frame and a socket at both ends of the top rear side of the upper template. The rotating shaft end of the hinge is inserted into the slot of the socket to realize the movable connection between the upper template and the positioning frame.

[0011] The socket has a through mounting hole at the top, and the hinge has a screw hole at the corresponding position. When the hinge is inserted into the socket, the screw hole is axially aligned with the mounting hole. By screwing the bolt into the mounting hole and connecting it with the screw hole, a detachable rotating connection structure is formed.

[0012] The positioning frame is provided with horizontal brackets on the front and rear sides inside, and the lower template is provided with grooves on the front and rear sides of the top to cooperate with the brackets. The brackets are embedded in the grooves to form a limiting fit, so as to realize the detachable installation of the lower template in the positioning frame.

[0013] Furthermore, several sets of balls are evenly distributed around the bottom of the positioning frame. Each set of balls is movably embedded in the bottom of the positioning frame through a ball bearing, and the bottom end of the ball protrudes from the bottom surface of the positioning frame, allowing the positioning frame to slide freely on the worktable.

[0014] Furthermore, both the upper and lower templates have sewing path holes inside. The sewing path holes include a group of guide holes distributed along the sewing trajectory of the airbag fabric, and the guide hole groups of the upper and lower templates form a vertically connected sewing channel when closed.

[0015] Furthermore, at least two sets of positioning pins are provided at the top edge of the lower template, and through holes that cooperate with the positioning pins are opened at the corresponding positions of the upper template. When the upper template is closed, the top of the positioning pin is inserted into the through hole to form a positioning fit. The height of the positioning pin is greater than the thickness of the airbag fabric to be sewn.

[0016] Furthermore, a handle is provided at the center of the front end of the upper template. The handle is fixedly connected to the upper template by bolts, and the gripping surface of the handle is provided with anti-slip texture. Handles are symmetrically provided at both ends of the top front side of the positioning frame, and the handles are fixed to the positioning frame by bolts.

[0017] Furthermore, the hinge is an adjustable damping hinge, including a first leaf and a second leaf that are hinged to each other. The first leaf is fixed to the positioning frame, and the second leaf is fixed to the socket. The upper template can be suspended at any angle through the upper template damping structure. When the upper template and the lower template are closed, a sealed chamber is formed for clamping the airbag fabric.

[0018] Furthermore, the inner wall of the groove of the lower template is provided with an elastic retaining strip, and the side of the bracket is provided with a slot that cooperates with the elastic retaining strip. When the bracket is embedded in the groove, the elastic retaining strip can be inserted into the slot to form a snap-fit ​​connection.

[0019] Furthermore, the contact surfaces of the upper and lower templates are designed with silicone sealant strips. When the upper template is closed, the sealant strips are tightly fitted to the surface of the lower template to prevent the airbag fabric from shifting during sewing.

[0020] The beneficial effects of this utility model are:

[0021] 1. In this utility model, the lower template is detachably installed by the groove of the bracket and the positioning frame, which makes it convenient to replace the lower template according to different sewing needs. The upper template and the positioning frame are detachably connected by bolts, hinges and sockets, which makes it easy to disassemble, repair or replace parts of the upper template, reducing the maintenance cost of the equipment and extending the service life of the device.

[0022] 2. The ball bearings at the bottom of the positioning frame in this utility model allow the device to slide freely on the worktable, enabling quick adjustment of the device's position, reducing friction, making its movement during sewing smoother, and preventing long-term wear from damaging the positioning frame, thus extending its service life. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of an airbag fabric sewing positioning device proposed in this utility model.

[0025] Figure 2 This is an unfolded structural diagram of an airbag fabric sewing positioning device proposed in this utility model;

[0026] Figure 3 This is a disassembly diagram of the lower template of an airbag fabric sewing positioning device proposed in this utility model;

[0027] Figure 4 This is a bottom view of an airbag fabric sewing positioning device proposed in this utility model;

[0028] Figure 5 This is a structural diagram of the disassembly of the upper template of an airbag fabric sewing positioning device proposed in this utility model.

[0029] In the diagram: 1. Positioning frame; 2. Upper template; 3. Hinge; 4. Socket; 5. Sewing path hole; 6. Handle; 7. Pull handle; 8. Lower template; 9. Positioning pin; 10. Through hole; 11. Bracket; 12. Groove; 13. Ball bearing; 14. Mounting hole; 15. Bolt; 16. Screw hole. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0031] Example 1

[0032] Please see Figure 1-5 An airbag fabric sewing positioning device includes a positioning frame 1, an upper template 2, and a lower template 8;

[0033] The positioning frame 1 serves as the basic frame of the entire device. It has horizontal brackets 11 integrally formed on the front and rear sides inside. The lower template 8 has corresponding grooves 12 on the front and rear sides of the top. During installation, the brackets 11 are aligned with the grooves 12 and inserted. At this time, the elastic strips on the inner wall of the grooves 12 will automatically snap into the slots on the side of the brackets 11 to form a stable snap-fit ​​connection, thereby enabling the lower template 8 to be detachably installed in the positioning frame 1.

[0034] This installation method facilitates the replacement and maintenance of the lower template 8.

[0035] Hinges 3 are symmetrically fixed at both ends of the top rear side of the positioning frame 1, and sockets 4 are symmetrically set at both ends of the top rear side of the upper template 2. The rotating shaft end of the hinge 3 is inserted into the slot of the socket 4 to realize the movable connection between the upper template 2 and the positioning frame 1.

[0036] When the hinge 3 is inserted into the socket 4, the mounting hole 14 at the top of the socket 4 is axially aligned with the screw hole 16 inside the hinge 3. The connection structure is further reinforced by screwing the bolt 15 into the mounting hole 14 and threading it into the screw hole 16. This connection method also facilitates disassembly and adjustment.

[0037] Example 2

[0038] Please see Figure 2-4 Several sets of balls 13 are evenly distributed around the bottom of the positioning frame 1. Each set of balls 13 is movably embedded into the bottom of the positioning frame 1 through a ball bearing, and the bottom end of the balls 13 protrudes from the bottom surface of the positioning frame 1.

[0039] In actual use, the operator can easily move the positioning frame 1 using the L-shaped handles 7 symmetrically arranged at both ends of the top front side of the positioning frame 1. The design of the ball bearing 13 allows the positioning frame 1 to slide freely on the workbench, making it convenient to move the device to the appropriate working position.

[0040] At least two sets of positioning pins 9 are provided at the top edge of the lower template 8, and perforations 10 that cooperate with the positioning pins 9 are opened at the corresponding positions of the upper template 2.

[0041] When placing the airbag fabric, first lay the airbag fabric flat on the lower template 8, and then close the upper template 2 downwards through the handle 6 set in the middle of the front end of the upper template 2.

[0042] At this time, the top of the positioning pin 9 is inserted into the perforation 10 to form a positioning fit. Since the height of the positioning pin 9 is greater than the thickness of the airbag fabric to be sewn, it can effectively fix the airbag fabric and prevent it from shifting during the sewing process.

[0043] Example 3

[0044] Please see Figure 1-3 Both the upper template 2 and the lower template 8 have sewing path holes 5 inside, and the sewing path holes 5 include a group of guide holes distributed along the sewing trajectory of the airbag fabric.

[0045] When the upper template 2 and the lower template 8 are closed, the guide hole group of the upper and lower templates forms a sewing channel that runs through the upper and lower parts.

[0046] During the sewing process, the sewing machine's needle and thread can smoothly pass through the airbag fabric along these guide holes, ensuring the accuracy of the sewing trajectory and improving the sewing quality.

[0047] Hing 3 is an adjustable damping hinge, including a first leaf and a second leaf that are hinged to each other. The first leaf is fixed to the positioning frame 1, and the second leaf is fixed to the socket 4.

[0048] With the damping structure, the upper template 2 can be suspended at any angle, making it convenient for operators to place and adjust the airbag fabric.

[0049] When the upper template 2 and the lower template 8 are closed, the silicone sealing strips on the contact surfaces of the upper template 2 and the lower template 8 fit tightly together to form a sealed chamber for holding the airbag fabric, which further prevents the airbag fabric from shifting during the sewing process and also reduces the impact of external dust and other impurities on the sewing process.

[0050] Working Principle: When using this airbag fabric sewing positioning device, first move the positioning frame 1 to a suitable position next to the sewing machine using the handle 7. Then, open the upper template 2 and use the adjustable damping hinge of the upper template 2 to fix it at a suitable angle. Next, lay the airbag fabric flat on the lower template 8, aligning the edge of the airbag fabric with the positioning pin 9 to ensure accurate placement. Then, hold the handle 6 to close the upper template 2 downwards, inserting the positioning pin 9 into the through hole 10 to complete the positioning of the airbag fabric. At this point, the operator can start the sewing machine. The sewing machine's needle and thread sew along the sewing path formed by the sewing holes of the upper template 2 and the lower template 8. During the sewing process, the sealing strip ensures that the airbag fabric will not shift, while the ball bearing 13 facilitates the adjustment of the device's position. This greatly reduces friction. After sewing, open the upper template 2, take out the sewn airbag fabric, and complete the entire sewing process. If the lower template 8 needs to be replaced, simply pull the lower template 8 out of the positioning frame 1. When it is necessary to disassemble and repair the upper template 2, replace parts, or adjust the damping of the hinge 3, use a screwdriver to unscrew the bolt 15 in the mounting hole 14. Since the threaded fixing effect of the bolt 15 and the screw hole 16 is lost, the rotating shaft end of the hinge 3 can be pulled out from the slot of the socket 4, thereby separating the upper template 2 from the positioning frame 1. After disassembly, the relevant parts can be inspected or replaced. After completion, reinsert the rotating shaft end of the hinge 3 into the slot of the socket 4, align the mounting hole 14 with the screw hole 16, and screw in the bolt 15 to complete the reinstallation of the upper template 2.

[0051] 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 equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sewing and positioning device for airbag fabric, characterized in that, It includes a positioning frame (1), an upper template (2), and a lower template (8); The lower template (8) is detachably installed in the positioning frame (1). The positioning frame (1) has symmetrical hinge installation structures at both ends of the top rear side. The hinge installation structure includes a hinge (3) fixed to the top rear side of the positioning frame (1) and sockets (4) set at both ends of the top rear side of the upper template (2). The rotating shaft end of the hinge (3) is inserted into the slot of the socket (4) to realize the movable connection between the upper template (2) and the positioning frame (1). The socket (4) has a through mounting hole (14) at the top, and the hinge (3) has a screw hole (16) at the corresponding position. When the hinge (3) is inserted into the socket (4), the screw hole (16) is axially aligned with the mounting hole (14). By screwing the bolt (15) into the mounting hole (14) and threading it with the screw hole (16), a detachable rotating connection structure is formed. The positioning frame (1) has horizontal brackets (11) on the front and back sides inside. The lower template (8) has grooves (12) on the front and back sides of the top corresponding to the brackets (11). The brackets (11) are embedded in the grooves (12) to form a limiting fit, so that the lower template (8) can be detachably installed in the positioning frame (1).

2. The airbag fabric sewing positioning device according to claim 1, characterized in that, The positioning frame (1) has several sets of balls (13) evenly distributed around its bottom. Each set of balls (13) is movably embedded into the bottom of the positioning frame (1) through a ball bearing, and the bottom end of the balls (13) protrudes from the bottom surface of the positioning frame (1), so that the positioning frame (1) can slide freely on the worktable.

3. The airbag fabric sewing positioning device according to claim 1, characterized in that, Both the upper template (2) and the lower template (8) have sewing path holes (5) inside. The sewing path holes (5) include a group of guide holes distributed along the sewing trajectory of the airbag fabric. The guide hole groups of the upper template (2) and the lower template (8) form a sewing channel that runs vertically through each other when the template is closed.

4. The airbag fabric sewing positioning device according to claim 1, characterized in that, At least two sets of positioning pins (9) are provided at the top edge of the lower template (8), and the upper template (2) has a through hole (10) that cooperates with the positioning pin (9) at the corresponding position. When the upper template (2) is closed, the top of the positioning pin (9) is inserted into the through hole (10) to form a positioning fit. The height of the positioning pin (9) is greater than the thickness of the airbag cloth to be sewn.

5. The airbag fabric sewing positioning device according to claim 1, characterized in that, The upper template (2) is provided with a handle (6) at the front center. The handle (6) is fixedly connected to the upper template (2) by bolts. The gripping surface of the handle (6) is provided with anti-slip texture. The positioning frame (1) is provided with handles (7) symmetrically at both ends of the top front side. The handles (7) are fixed to the positioning frame (1) by bolts.

6. The airbag fabric sewing positioning device according to claim 1, characterized in that, The hinge (3) is an adjustable damping hinge, including a first leaf and a second leaf that are hinged to each other. The first leaf is fixed to the positioning frame (1), and the second leaf is fixed to the socket (4). The upper template (2) can be suspended at any angle through the damping structure of the upper template (2). When the upper template (2) and the lower template (8) are closed, a sealed chamber for clamping the airbag fabric is formed.

7. The airbag fabric sewing positioning device according to claim 1, characterized in that, The inner wall of the groove (12) of the lower template (8) is provided with an elastic clip, and the side of the bracket (11) is provided with a slot that cooperates with the elastic clip. When the bracket (11) is embedded in the groove (12), the elastic clip can be inserted into the slot to form a snap-fit ​​connection.

8. The airbag fabric sewing positioning device according to claim 1, characterized in that, The contact surfaces of the upper template (2) and the lower template (8) are set at the edges, and the sealing strip is made of silicone. When the upper template (2) is closed, the sealing strip is tightly attached to the surface of the lower template (8) to prevent the airbag fabric from shifting during the sewing process.

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