Automatic stopper turnover mechanism of safety belt

The automatic folding and sewing of the seat belt is achieved through the automatic plug-in folding mechanism of the seat belt, solving the problems of low efficiency and poor accuracy in traditional processes, improving production efficiency and quality, and reducing labor costs.

CN120443426APending Publication Date: 2025-08-08DONGGUAN ZHIXIANG AUTOMATION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510503755.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2025-08-08

AI Technical Summary

Technical Problem

The traditional seat belt sewing process relies on manual folding, which has low efficiency, poor accuracy, and high labor intensity, resulting in high waste rate and serious waste of materials.

Method used

A seat belt automatic plug rod folding mechanism is designed to realize the seamless connection of automatic folding and sewing of the seat belt through the linkage of feeding components, loading components, placement components, blocking components, folding components and conveying components, thereby reducing labor costs and product errors.

Benefits of technology

The full process automation of seat belt processing has been achieved, production efficiency has been improved, labor costs have been reduced, product errors and material waste have been reduced, and processing quality has been improved.

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Abstract

The automatic stopper turnover mechanism comprises a rack, a safety belt body and a stopper body, a feeding frame is installed in the rack, a supporting sliding plate is connected to the feeding frame in a sliding mode, the safety belt body is placed on the supporting sliding plate, a feeding opening is formed in the rack, and the stopper body is arranged on the feeding opening. The safety belt body enters a feeding frame in the machine frame through a feeding port, a feeding assembly for driving the safety belt body to move forwards is arranged in the feeding port, a feeding assembly for conveying the stopper rod body is installed in the machine frame, and a placing assembly for placing the stopper rod body on the safety belt body is arranged in the machine frame. A through opening is formed in the feeding frame in a penetrating mode, and a blocking assembly extending into the through opening is installed in the machine frame. The device is reasonable in structural design, solves the problems of low efficiency, poor precision and consumption of more human resources in the traditional process, and can bring remarkable economic benefits and improve quality.
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Description

Technical Field

[0001] The present invention relates to the technical field of safety belt processing, in particular to an automatic stopper folding mechanism for a safety belt. Background Art

[0002] A car seat belt is a device used to protect passengers and drivers from being injured by airbags when the car body is hit. During the production process of the seat belt, it is usually necessary to fold it and then sew it.

[0003] Currently, the traditional seatbelt sewing process mainly relies on manual folding and positioning. Operators manually fold the edges of the webbing inward and rely on experience to control the folding width. This is inefficient, inconsistent, and labor-intensive, which is not conducive to controlling processing accuracy and quality. Uneven folding or seam offset will lead to increased scrap rate and serious material waste. To this end, we have designed an automatic seatbelt plug folding mechanism to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art, and the proposed seat belt automatic plug folding mechanism solves the problems of low efficiency, poor precision and high human resources required in traditional processes, and can bring significant economic benefits and quality improvements.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The automatic stopper rod folding mechanism of the safety belt comprises a frame, a safety belt body and a stopper rod body, a feeding rack is installed in the frame, a supporting slide is slidably connected to the feeding rack, the safety belt body is placed on the supporting slide, the frame is provided with a feeding port, the safety belt body enters the feeding rack in the frame through the feeding port, a feeding component that drives the safety belt body to move forward is installed in the feeding port, a loading component for conveying the stopper rod body is installed in the frame, a placing component for placing the stopper rod body on the safety belt body, a through opening is opened on the feeding rack, a blocking component extending into the through opening is installed in the frame, and a folding component extending into the through opening is installed in the frame, after the safety belt body moves and hits the blocking component, the placing component places the stopper rod body on the safety belt body, the folding component folds the safety belt body, and a conveying component for fixing and conveying the folded safety belt body is installed in the frame.

[0007] Preferably, the feeding assembly includes an upper mounting frame installed in the feed port, an upper feed roller is rotatably connected to the upper mounting frame, a driving motor for driving the upper feed roller to rotate is installed on the upper mounting frame, and a lower mounting frame is installed on the feed port, a lower feed roller located below the upper feed roller is rotatably connected to the lower mounting frame.

[0008] Preferably, the feeding assembly includes an upper hopper installed in a frame, a rotatable base plate is installed in the upper hopper, the base plate is driven to rotate by a drive motor installed in the upper hopper, and a conveying plate connected to the discharge end of the upper hopper is installed in the frame.

[0009] Preferably, a rotating disk and an annular disk are connected to the frame through a support frame, and the rotating disk and the annular disk are driven to rotate by corresponding driving devices respectively. The annular disk cover is arranged on the outside of the rotating disk, and a placement groove is provided on the rotating disk. The annular disk is provided with two first notches located on the same straight line, and the annular disk is provided with two second notches located on the same straight line. The two first notches and the two second notches are distributed on the annular disk at equal intervals, and an electromagnet is installed in one of the second notches.

[0010] Preferably, the placement component includes a first electric slide rail installed in the frame, a first electric slider adapted to the first electric slide rail is installed in the first electric slide rail, a driving cylinder is installed on the side wall of the first electric slider, a second electric slide rail is installed on the telescopic end of the driving cylinder, two second electric sliders adapted to the first electric slide rail are installed in the second electric slide rail, and clamps are installed at the bottom of the two second electric sliders.

[0011] Preferably, the blocking assembly includes a first cylinder installed in the frame, a blocking plate is installed at the telescopic end of the first cylinder, and the side wall of the blocking plate is inclined.

[0012] Preferably, the folding assembly includes a transverse electric slide rail installed in the frame, a transverse electric slider adapted thereto is installed in the transverse electric slide rail, a T-shaped frame is installed on the upper end of the transverse electric slider, a second cylinder is installed on the T-shaped frame, an L-shaped pressure plate is installed at the telescopic end of the second cylinder, and an arc-shaped groove adapted to the stopper rod body is provided on the inner top of the L-shaped pressure plate.

[0013] Preferably, the conveying assembly includes a conveying electric slide rail installed in the frame, a conveying electric slider compatible with it is installed in the conveying electric slide rail, a bracket is installed on the conveying electric slider, a third cylinder is installed on the bracket, a Z-shaped pressure plate is installed at the telescopic end of the third cylinder, a fourth cylinder is installed on the bracket, and a pressure block is installed at the telescopic end of the fourth cylinder.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This safety belt automatic rod plugging and folding mechanism integrates the entire process automation. Through the linkage of the feeding component, loading component, placement component, blocking component, folding component and conveying component, it realizes seamless connection from feeding, bending to sewing. The bent safety belt is directly delivered to the sewing mold, avoiding secondary handling, reducing the time spent in the intermediate links, ensuring production efficiency, reducing product errors, and can reduce labor costs and ensure benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram from a first perspective of the automatic seat belt stopper folding mechanism proposed by the present invention;

[0017] Figure 2 This is a schematic structural diagram from a second perspective of the seat belt automatic stopper folding mechanism proposed by the present invention;

[0018] Figure 3 for Figure 1 A magnified view of the structure at center A;

[0019] Figure 4 for Figure 2 A magnified view of the structure at point B in the middle;

[0020] Figure 5 for Figure 2 A magnified view of the structure at point C in the middle;

[0021] Figure 6 It is a schematic diagram of the connection between the upper mounting frame, upper feed roller, lower mounting frame and lower feed roller.

[0022] In the figure: 1. Frame; 2. Safety belt body; 3. Stopper body; 4. Feed rack; 5. Feed port; 6. Through port; 7. Upper mounting frame; 8. Upper feed roller; 9. Lower mounting frame; 10. Lower feed roller; 11. Upper hopper; 12. Bottom plate; 13. Conveyor plate; 14. Rotating plate; 15. Annular plate; 16. Placement slot; 17. First notch; 18. Second notch; 19. Electromagnet; 20. First electric slide rail; 21. Driving cylinder; 22. Second electric slide; 23. Second electric slider; 24. Clamp; 25. First cylinder; 26. Blocking plate; 27. Horizontal electric slide; 28. T-shaped frame; 29. Second cylinder; 30. L-shaped pressure plate; 31. Arc groove; 32. Conveying electric slide; 33. Bracket; 34. Third cylinder; 35. Z-shaped pressure plate; 36. Fourth cylinder; 37. Pressure block; 38. Support slide. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Reference Figures 1-6 The automatic stopper rod folding mechanism for the safety belt comprises a frame 1, a safety belt body 2 and a stopper rod body 3. A feeding rack 4 is installed in the frame 1. A support slide 38 is slidably connected to the feeding rack 4. The safety belt body 2 is placed on the support slide 38. A feeding port 5 is provided on the frame 1. The safety belt body 2 enters the feeding rack 4 in the frame 1 through the feeding port 5. A feeding component for driving the safety belt body 2 to move forward is provided in the feeding port 5. The feeding component comprises an upper mounting frame 7 installed in the feeding port 5. A support slide 38 is slidably connected to the feeding rack 4. The safety belt body 2 is placed on the support slide 38. An upper feed roller 8 and an upper mounting frame 7 are provided with a driving motor for driving the upper feed roller 8 to rotate. A lower mounting frame 9 is provided on the feed port 5. A lower feed roller 10 located below the upper feed roller 8 is rotatably connected in the lower mounting frame 9. The safety belt body 2 is located between the upper feed roller 8 and the lower feed roller 10. Both the upper feed roller 8 and the lower feed roller 10 are provided with anti-slip grooves, which can increase the friction between them and the safety belt body 2, so that when the driving motor drives the upper feed roller 8 to rotate, the safety belt body 2 can be conveyed forward under the action of the friction force.

[0025] A loading assembly for conveying the stopper rod body 3 is installed in the frame 1. The loading assembly includes an upper hopper 11 installed in the frame 1. A discharge port is formed through the side wall of the upper hopper 11. A rotatable bottom plate 12 is installed in the upper hopper 11. The bottom plate 12 is driven to rotate by a drive motor installed in the upper hopper 11. The rotation of the bottom plate 12 can discharge the stopper rod body 3 from the discharge port under the action of centrifugal force. A conveying plate 13 is installed in the frame 1 and is connected to the discharge end of the upper hopper 11. A slide rail is provided on the conveying plate 13, and the conveying plate 13 is inclined so that the stopper rod body 3 can slide along the slide rail.

[0026] The frame 1 is connected to a rotating disk 14 and an annular disk 15 through a support frame. The rotating disk 14 and the annular disk 15 are respectively driven to rotate by corresponding driving devices. The annular disk 15 is covered on the outer side of the rotating disk 14. A placement groove 16 is provided on the rotating disk 14, and the placement groove 16 is adapted to the stopper rod body 3. The annular disk 15 is provided with two first notches 17 located on the same straight line, and the annular disk 15 is provided with two second notches 18 located on the same straight line. The two first notches 17 and the two second notches 18 are equidistantly distributed on the annular disk 15. An electromagnet 19 is installed in one of the second notches 18. The stopper rod body 3 is made of iron. When the stopper rod body 3 is located on the conveying plate 13, the electromagnet 19 is energized when the annular disk 15 rotates, which can suck the stopper rod body 3 into the placement groove 16, and start the rotating disk 14 to rotate, so that the placement groove 16 and the two first notches 17 are located on the same straight line, so that the clamping block 24 can clamp the stopper rod body 3, and then the stopper rod body 3 can be placed;

[0027] A placement assembly for placing the stopper rod body 3 on the safety belt body 2 is provided in the frame 1. The placement assembly includes a first electric slide rail 20 installed in the frame 1. A first electric slider adapted thereto is installed in the first electric slide rail 20. A driving cylinder 21 is installed on the side wall of the first electric slider. A second electric slide rail 22 is installed at the telescopic end of the driving cylinder 21. Two second electric sliders 23 adapted thereto are installed in the second electric slide rail 22. A clamping block 24 is installed at the bottom of each of the two second electric sliders 23. The first electric slider slides in the first electric slide rail 20 and can guide the second electric slide rail 22, so that the second electric slide rail 22 can move back and forth. The second electric slider 23 slides in the second electric slide rail 22 and can drive the two clamping blocks 24 to move closer to or away from each other, thereby clamping the stopper rod body 3.

[0028] A through opening 6 is provided on the feeding frame 4, and a blocking assembly extending into the through opening 6 is installed in the frame 1. The blocking assembly includes a first cylinder 25 installed in the frame 1, and a blocking plate 26 is installed at the telescopic end of the first cylinder 25. The side wall of the blocking plate 26 is inclined. The first cylinder 25 can drive the blocking plate 26 to move up and down. During the movement of the safety belt body 2, the blocking plate 26 can block the safety belt body 2. When the safety belt body 2 conflicts with the blocking plate 26, the folding assembly can fold the safety belt body 2;

[0029] A folding assembly extending into the through opening 6 is installed in the frame 1. After the safety belt body 2 moves and abuts against the blocking assembly, the placing assembly places the stopper rod body 3 on the safety belt body 2, and the folding assembly folds the safety belt body 2. The folding assembly includes a transverse electric slide rail 27 installed in the frame 1. A transverse electric slider adapted thereto is installed in the transverse electric slide rail 27. A T-shaped frame 28 is installed on the upper end of the transverse electric slider. The transverse electric slider slides in the transverse electric slide rail 27 and can drive the T-shaped frame 28 to move horizontally. A second cylinder 29 is installed on the T-shaped frame 28. An L-shaped pressing plate 30 is installed at the telescopic end of the second cylinder 29. The second cylinder 29 can drive the L-shaped pressing plate 30 to move up and down. An arc-shaped groove 31 adapted to the stopper rod body 3 is provided on the inner top of the L-shaped pressing plate 30.

[0030] A conveying assembly for fixing and conveying the folded seat belt body 2 is installed in the frame 1, and the conveying assembly includes a conveying electric slide rail 32 installed in the frame 1, and a conveying electric slider adapted thereto is installed in the conveying electric slide rail 32, and a bracket 33 is installed on the conveying electric slider, and a third cylinder 34 is installed on the bracket 33, and a Z-shaped pressure plate 35 is installed at the telescopic end of the third cylinder 34. The telescopic end of the third cylinder 34 can drive the Z-shaped pressure plate 35 to move downward, thereby pressing and fixing the seat belt body 2, and a fourth cylinder 36 is installed on the bracket 33, and a pressure block 37 is installed at the telescopic end of the fourth cylinder 36. The telescopic end of the fourth cylinder 36 can drive the pressure block 37 to move downward, and work together with the Z-shaped pressure plate 35 to press and fix the seat belt body 2.

[0031] The present invention can be explained through the following operation mode:

[0032] In the present invention, when the automatic stopper and folding mechanism of the safety belt is in operation, the safety belt body 2 enters the feed port 5 from the previous process, and the driving motor drives the upper feed roller 8 to rotate, which can convey the safety belt body 2 forward under the action of friction, so that the front end of the safety belt body 2 moves to the support slide 38, and the first cylinder 25 drives the blocking plate 26 to move upward, so that the blocking plate 26 moves to the top of the feeding rack 4. When the safety belt body 2 abuts against the blocking plate 26, the safety belt body 2 no longer moves forward;

[0033] The bottom plate 12 rotates, and under the action of centrifugal force, the stopper rod body 3 is thrown out from the discharge end to the conveying plate 13, and the stopper rod body 3 moves along the conveying plate 13. The annular disk 15 rotates so that the electromagnet 19 and the conveying plate 13 are located in the same straight line. The electromagnet 19 is energized, which can suck the stopper rod body 3 into the placement groove 16, and start the rotation of the rotating disk 14 so that the placement groove 16 and the two first notches 17 are located in the same straight line. The first electric slider slides on the first electric slide rail 20, which can drive the clamping block 24 to move back and forth. The driving cylinder 21 can drive the clamping block 24 to move up and down. The second electric slider 23 slides in the second electric slide rail 22, which can make the two clamping blocks 24 approach each other, and then the two clamping blocks 24 can clamp the stopper rod body 3. The driving cylinder 21 cooperates with the first electric slide rail 20 to enable the clamping block 24 to transfer the stopper rod body 3 to the safety belt body 2;

[0034] The second cylinder 29 drives the L-shaped pressure plate 30 upward to fold the safety belt body 2 upward. The transverse electric slider slides in the transverse electric slide rail 27 to move the L-shaped pressure plate 30 toward the safety belt body 2. Then, the second cylinder 29 drives the L-shaped pressure plate 30 downward to fold the safety belt body 2 downward to cover the stopper rod body 3. The front-to-back distance of the L-shaped pressure plate 30 is smaller than the distance between the two clamping blocks 24, so that the L-shaped pressure plate 30 does not interfere with the clamping blocks 24. The first cylinder 25 drives the blocking plate 26 downward to reset and move it into the through opening 6.

[0035] After the safety belt body 2 is folded, the conveying electric slider slides on the conveying electric slide rail 32, which can make the Z-shaped pressure plate 35 and the pressure block 37 move horizontally. The fourth cylinder 36 drives the Z-shaped pressure plate 35 to move downward, which can make the Z-shaped pressure plate 35 press the safety belt body 2 from the plug rod body 3. The fourth cylinder 36 drives the pressure block 37 to move downward to further fix the safety belt body 2. The transverse electric slide rail 27 and the second cylinder 29 drive the L-shaped pressure plate 30 to reset and move into the through opening 6. The conveying electric slider continues to slide on the conveying electric slide rail 32, which can drive the safety belt body 2 and the supporting slide plate 38 to slide forward under the pressure force, and convey the safety belt body 2 to the next sewing process for sewing.

[0036] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A seat belt automatic stopper folding mechanism, comprising a frame (1), a seat belt body (2) and a stopper body (3), characterized in that: A feeding rack (4) is installed in the frame (1), and a supporting slide (38) is slidably connected to the feeding rack (4). The safety belt body (2) is placed on the supporting slide (38). A feeding port (5) is provided on the frame (1), and the safety belt body (2) enters the feeding rack (4) in the frame (1) through the feeding port (5). A feeding component for driving the safety belt body (2) to move forward is provided in the feeding port (5). A loading component for conveying the stopper rod body (3) is installed in the frame (1). ) is placed on the safety belt body (2), a through opening (6) is opened on the feeding rack (4), a blocking component extending into the through opening (6) is installed in the frame (1), a folding component extending into the through opening (6) is installed in the frame (1), after the safety belt body (2) moves and abuts against the blocking component, the placing component places the plug rod body (3) on the safety belt body (2), the folding component folds the safety belt body (2), and a conveying component is installed in the frame (1) for fixing and conveying the folded safety belt body (2).

2. The seat belt automatic stopper folding mechanism according to claim 1, characterized in that: The feeding assembly comprises an upper mounting frame (7) mounted in the feed port (5), an upper feeding roller (8) being rotatably connected in the upper mounting frame (7), a driving motor for driving the upper feeding roller (8) to rotate being mounted on the upper mounting frame (7), a lower mounting frame (9) being mounted on the feed port (5), and a lower feeding roller (10) located below the upper feeding roller (8) being rotatably connected in the lower mounting frame (9).

3. The automatic seat belt stopper folding mechanism according to claim 1, characterized in that: The feeding assembly comprises a feeding hopper (11) installed in a frame (1), a rotatable bottom plate (12) installed in the feeding hopper (11), the bottom plate (12) being driven to rotate by a driving motor installed in the feeding hopper (11), and a conveying plate (13) connected to a discharge end of the feeding hopper (11) being installed in the frame (1).

4. The automatic seat belt stopper folding mechanism according to claim 3, characterized in that: A rotating disk (14) and an annular disk (15) are connected to the frame (1) through a support frame. The rotating disk (14) and the annular disk (15) are driven to rotate by corresponding driving devices respectively. The annular disk (15) is covered on the outside of the rotating disk (14). A placement groove (16) is provided on the rotating disk (14). The annular disk (15) is provided with two first notches (17) located on the same straight line. The annular disk (15) is provided with two second notches (18) located on the same straight line. The two first notches (17) and the two second notches (18) are distributed on the annular disk (15) at equal intervals. An electromagnet (19) is installed in one of the second notches (18).

5. The seat belt automatic stopper folding mechanism according to claim 1, characterized in that: The placement assembly comprises a first electric slide rail (20) installed in a frame (1), a first electric slider adapted thereto being installed in the first electric slide rail (20), a driving cylinder (21) being installed on a side wall of the first electric slider, a second electric slide rail (22) being installed at a telescopic end of the driving cylinder (21), two second electric sliders (23) adapted thereto being installed in the second electric slide rail (22), and a clamping block (24) being installed at the bottom of each of the two second electric sliders (23).

6. The automatic seat belt stopper folding mechanism according to claim 1, characterized in that: The blocking assembly comprises a first cylinder (25) installed in the frame (1), a blocking plate (26) is installed at the telescopic end of the first cylinder (25), and the side wall of the blocking plate (26) is arranged at an inclination.

7. The automatic seat belt stopper folding mechanism according to claim 1, characterized in that: The folding assembly includes a transverse electric slide rail (27) installed in the frame (1), a transverse electric slider adapted thereto is installed in the transverse electric slide rail (27), a T-shaped frame (28) is installed at the upper end of the transverse electric slider, a second cylinder (29) is installed on the T-shaped frame (28), an L-shaped pressing plate (30) is installed at the telescopic end of the second cylinder (29), and an arc-shaped groove (31) adapted to the stopper rod body (3) is provided on the inner top of the L-shaped pressing plate (30).

8. The seat belt automatic stopper folding mechanism according to claim 1, characterized in that: The conveying assembly comprises a conveying electric slide rail (32) installed in a frame (1), a conveying electric slider adapted thereto is installed in the conveying electric slide rail (32), a bracket (33) is installed on the conveying electric slider, a third cylinder (34) is installed on the bracket (33), a Z-shaped pressing plate (35) is installed at the telescopic end of the third cylinder (34), a fourth cylinder (36) is installed on the bracket (33), and a pressing block (37) is installed at the telescopic end of the fourth cylinder (36).