Automatic cutting mechanism for safety belt

Abstract

The utility model discloses an automatic safety belt cutting mechanism which comprises a machine frame and a working table, a feeding port and a discharging port are formed in the side walls of the two ends of the machine frame in a penetrating mode respectively, a feeding assembly is installed on the side wall of the machine frame, and a conveying assembly for driving a safety belt to move is installed on the working table. The conveying assembly rotates to measure the length of the safety belt, a cutting supporting table with the position adjustable is installed on the workbench, a laser cutter body is installed on the workbench, and a through opening is formed in the workbench in a penetrating mode. The safety belt cutting device is reasonable in structural design, the cutting length of a safety belt can be automatically controlled, cutting is conducted through the laser cutter body, the cutting edge is smooth, the green manufacturing requirement is met, the industrial injury risk can be reduced through automatic operation, and when the length of remaining safety belt raw materials is insufficient, the remaining safety belt can be returned back into the collecting box to be collected; and the working environment is kept clean.

Description

Technical Field

[0001] This utility model relates to the field of seat belt processing technology, and in particular to an automatic seat belt cutting mechanism. Background Technology

[0002] Car seat belts, also known as seat belts, are occupant restraint devices used to protect passengers and drivers from injury when airbags deploy during a violent impact to the vehicle. As an important safety device in automobiles, the cutting process in the production of seat belts is crucial.

[0003] Currently, traditional seatbelt cutting processes mainly rely on mechanical cutters or ultrasonic cutting, but these methods have the following problems: mechanical stress may be generated when the cutter contacts the material surface, leading to material deformation or edge burrs, affecting the strength and durability of the seatbelt; mechanical cutting requires frequent mold changes, has poor adaptability to complex shapes, and is slow, making it difficult to meet the needs of large-scale production; traditional methods result in rough edges that require subsequent finishing, increasing material waste and labor costs. Therefore, we propose an automatic seatbelt cutting mechanism to solve these problems. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art. The proposed automatic safety belt cutting mechanism can automatically control the cutting length of the safety belt, cut it through the laser cutter body, and the cutting edge is smooth, which meets the requirements of green manufacturing. The automated operation can reduce the risk of workplace injury. When the remaining safety belt material is not long enough, the remaining safety belt can be returned to the collection box for collection, keeping the working environment clean.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automatic seat belt cutting mechanism includes a frame and a worktable. The frame has an inlet and an outlet through its two end side walls, respectively. A feeding assembly is installed on the side walls of the frame. A conveying assembly that moves the seat belt is installed on the worktable. The conveying assembly rotates to measure the length of the seat belt. An adjustable cutting support is installed on the worktable. A laser cutter body is installed on the worktable. An opening is through the worktable. A pushing assembly that pushes the seat belt out is installed on the worktable. A collection box is located directly below the opening inside the frame.

[0007] Preferably, the feeding assembly includes a support block fixedly connected to the side wall of the frame, a rotating wheel rotatably connected to the front side wall of the support block, and a stop block opposite to the rotating wheel detachably connected to the side wall of the frame.

[0008] Preferably, the conveying assembly includes two sets of mounting brackets mounted on the workbench and located above the opening. A first conveying roller is rotatably mounted between the two sets of mounting brackets. The first conveying roller is driven to rotate by a servo motor mounted on the workbench. A second conveying roller located directly below the first conveying roller is rotatably connected between the inner sidewalls of the front and rear ends of the opening.

[0009] Preferably, an electric slide rail is installed on the upper end of the workbench, and a slide table is installed on the electric slide rail via a matching electric slider, and the cutting support table is installed on the side wall of the slide table.

[0010] Preferably, the pushing assembly includes at least one guide frame mounted on the upper end of the worktable, an upper mounting frame mounted on the upper end of the worktable, an upper pushing roller rotatably connected inside the upper mounting frame, a drive motor for driving the upper pushing roller to rotate mounted on the upper mounting frame, a lower mounting frame mounted on the worktable, and a lower pushing roller located below the upper pushing roller rotatably connected inside the lower mounting frame.

[0011] Preferably, a support roller located between the feed inlet and the conveying assembly is rotatably connected inside the through-hole.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] This automatic seat belt cutting mechanism uses a laser cutter body to cut, resulting in smooth, burnt, or yellowed edges. Laser cutting does not produce dust or harmful gases, meeting green manufacturing requirements. Furthermore, it is a non-contact processing method, reducing manual intervention and lowering the risk of workplace injuries.

[0014] 2. This automatic safety belt cutting mechanism can control the length of the unwinding of the safety belt by controlling the number of rotations of the first conveyor roller, and thus control the length of the safety belt cutting. When the remaining safety belt material is not long enough, the servo motor drives the first conveyor roller to rotate in the opposite direction, which can retract the safety belt and allow the insufficient length of the safety belt to fall from the opening into the collection box for collection, thus keeping the working environment clean. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of the automatic seat belt cutting mechanism proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the automatic seat belt cutting mechanism proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the automatic seat belt cutting mechanism proposed in this utility model, excluding the laser cutter body inside.

[0018] Figure 4This is a bottom view of the connection between the workbench and the port of the automatic seat belt cutting mechanism proposed in this utility model.

[0019] Figure 5 This is a schematic diagram of the internal structure of the automatic seat belt cutting mechanism proposed in this utility model, excluding the worktable.

[0020] In the diagram: 1. Frame; 2. Worktable; 3. Feed inlet; 4. Discharge outlet; 5. Cutting support table; 6. Laser cutter body; 7. Through-hole; 8. Collection box; 9. Support block; 10. Rotating wheel; 11. Stop block; 12. First conveyor roller; 13. Servo motor; 14. Second conveyor roller; 15. Electric slide rail; 16. Slide table; 17. Guide frame; 18. Upper mounting frame; 19. Upper pusher roller; 20. Lower mounting frame; 21. Lower pusher roller; 22. Support roller. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-5 The automatic seat belt cutting mechanism includes a frame 1 and a worktable 2. The frame 1 is equipped with a protective cover to block laser scattering. The two end side walls of the frame 1 are respectively provided with an inlet 3 and an outlet 4. The side wall of the frame 1 is equipped with a feeding assembly, which includes a support block 9 fixedly connected to the side wall of the frame 1. The front side wall of the support block 9 is rotatably connected to a rotating wheel 10. The side wall of the frame 1 is detachably connected to a stop block 11 opposite to the rotating wheel 10. The stop block 11 can be detachably fixed to the side wall of the frame 1 by screws. The stop block 11 is removed, and the material roll with the seat belt is placed on the rotating wheel 10. Then the stop block 11 is fixed to the frame 1 to block the material roll and prevent it from falling off the rotating wheel 10. The rotation of the rotating wheel 10 can drive the material roll to rotate and unwind the seat belt.

[0023] A conveying assembly that moves the safety belt is installed on the workbench 2. The conveying assembly rotates to measure the length of the safety belt. The conveying assembly includes two sets of mounting brackets installed on the workbench 2 and above the opening 7. A first conveying roller 12 is rotatably mounted between the two sets of mounting brackets. The two sets of mounting brackets are located on the front and rear sides of the opening 7, respectively, so that the first conveying roller 12 can be positioned directly above the opening 7. The first conveying roller 12 is driven to rotate by a servo motor 13 mounted on the workbench 2. A second conveying roller 14 located directly below the first conveying roller 12 is rotatably connected between the inner sidewalls of the front and rear ends of the opening 7. The first conveying roller 12 and the second conveying roller 14 can work together to clamp the safety belt. The outer walls of the first conveyor roller 12 and the second conveyor roller 14 are provided with anti-slip texture, which can increase the friction between them and the seat belt. When the servo motor 13 drives the first conveyor roller 12 to rotate, it can drive the seat belt to move and convey it under the action of friction. By controlling the number of rotations of the first conveyor roller 12 driven by the servo motor 13, the distance the seat belt moves can be measured, and the cutting length of the seat belt can be determined. A support roller 22 is rotatably connected in the through 7 between the feed inlet 3 and the conveying assembly. The upper ends of the support roller 22 and the second conveyor roller 14 are at the same height. The support roller 22 can support and guide the conveyor belt, reducing the occurrence of wrinkles or bends in the seat belt.

[0024] An adjustable cutting support table 5 is installed on the workbench 2. An electric slide rail 15 is installed on the upper end of the workbench 2. A slide table 16 is installed on the electric slide rail 15 through an electric slider that is compatible with it. The cutting support table 5 is installed on the side wall of the slide table 16. The electric slider slides in the electric slide rail 15, which can drive the slide table 16 to move left and right to adjust the position of the cutting support table 5. The upper surface of the cutting support table 5 is on the same horizontal line as the upper end of the second conveying roller 14. The cutting support table 5 has a certain flatness and load-bearing capacity to ensure the stability of the safety belt during the cutting process.

[0025] A support frame is installed on the upper end of the worktable 2, and the laser cutter body 6 is installed on the support frame. The laser cutter body 6 is installed on the worktable 2. The laser cutter body 6 is equipped with a laser generation system. The laser tube generates a high-energy-density laser beam by exciting a specific medium. The laser power supply provides a stable power supply to the laser tube. The reflector is used to reflect and adjust the propagation direction of the laser beam, guiding the laser from the laser tube to the cutting area. The focusing lens focuses the laser beam onto the safety belt material to be cut, so that the laser energy is concentrated in a small area, improving the cutting accuracy and effect. The photoelectric sensor can detect the material in place and trigger the cutting process. The temperature sensor monitors the temperature of the laser head and the surface of the material to prevent overheating damage. The structure and working principle of the laser cutter body 6 are all existing technologies, which can realize the cutting work. The laser cutting can ensure that the cut is smooth and burr-free, which meets the safety standards.

[0026] The workbench 2 has a through opening 7. A pusher assembly for pushing out the safety belt is installed on the workbench 2. The pusher assembly includes at least one guide frame 17 installed on the upper end of the workbench 2. The safety belt passes through the guide frame 17, which guides the safety belt. An upper mounting frame 18 is installed on the upper end of the workbench 2. An upper pusher roller 19 is rotatably connected inside the upper mounting frame 18. A drive motor for driving the upper pusher roller 19 to rotate is installed on the upper mounting frame 18. A lower mounting frame 20 is installed on the workbench 2. A lower pusher roller 21 located below the upper pusher roller 19 is rotatably connected inside the lower mounting frame 20. The safety belt passes through the upper pusher roller 19 and the lower pusher roller 21. The drive motor drives the upper pusher roller 19 to rotate, which allows the cut safety belt to move and be discharged from the discharge port 4 and sent to the next processing step.

[0027] The frame 1 is equipped with a collection box 8 located directly below the opening 7. When the first conveyor roller 12 rotates and moves the remaining safety belt material, but the length of the safety belt material is insufficient, the servo motor 13 drives the first conveyor roller 12 to rotate in the opposite direction, which can retract the safety belt and make the insufficient length of the safety belt fall from the opening 7 into the collection box 8 for collection.

[0028] The functional principle of this utility model can be explained through the following operation methods:

[0029] In this utility model, the automatic safety belt cutting mechanism removes the stop block 11, places the material roll with the safety belt on the rotating wheel 10, and then fixes the stop block 11 on the frame 1 to block the material roll. The rotating wheel 10 unwinds the safety belt, allowing the free end of the safety belt to pass through the feed inlet 3 into the frame 1, and pass through the gap between the first conveying roller 12 and the second conveying roller 14 above the support roller 22. The free end of the safety belt then passes through the gap between the guide frame 17 and the upper push roller 19 and the lower push roller 21 above the cutting support table 5.

[0030] Servo motor 13 drives the first conveyor roller 12 to rotate, which can move the safety belt under the clamping and friction between the first conveyor roller 12 and the second conveyor roller 14. By controlling the number of rotations of the first conveyor roller 12, the length of the safety belt unwinding can be controlled, and thus the length of the safety belt cutting can be controlled. The drive motor drives the upper push roller 19 to rotate, which can convey the safety belt forward and discharge it through the discharge port 4. When the safety belt is unwound to the length to be cut, the cutting support table 5 supports the safety belt, and the laser cutter body 6 is started to laser cut the safety belt. The laser cutting can ensure that the cut is smooth and burr-free, which meets the safety standards. Repeating the above work can automatically cut the safety belt. When the remaining safety belt material is not long enough, servo motor 13 drives the first conveyor roller 12 to rotate in the opposite direction, which can retract the safety belt and allow the insufficient length of the safety belt to fall from the opening 7 into the collection box 8 for collection.

[0031] 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 safety belt automatic cutting mechanism, comprising a rack (1) and a workbench (2), characterized in that, Both ends of the rack (1) are provided with an inlet (3) and an outlet (4), respectively, and the side wall of the rack (1) is provided with a feeding assembly, the workbench (2) is provided with a conveying assembly for moving the safety belt, the conveying assembly rotates to measure the length of the safety belt, the workbench (2) is provided with a cutting support table (5) with adjustable position, the workbench (2) is provided with a laser cutter body (6), the workbench (2) is provided with a through opening (7), the workbench (2) is provided with a pushing assembly for pushing the safety belt, and the rack (1) is provided with a collecting box (8) located below the through opening (7).

2. The automatic belt cutting mechanism according to claim 1, wherein The feeding assembly comprises a support block (9) fixedly connected to the side wall of the rack (1), and a rotating wheel (10) rotatably connected to the front side wall of the support block (9).

3. The automatic belt cutting mechanism of claim 1, wherein, The conveying assembly comprises two groups of mounting frames mounted on the workbench (2) and located above the through opening (7), and a first conveying roller (12) rotatably mounted between the two groups of mounting frames, wherein the first conveying roller (12) is driven to rotate by a servo motor (13) mounted on the workbench (2), and a second conveying roller (14) is rotatably connected between the inner side walls of the front and rear ends of the through opening (7) and located below the first conveying roller (12).

4. The automatic belt cutting mechanism of claim 1, wherein, The upper end of the workbench (2) is provided with an electric sliding rail (15), the electric sliding rail (15) is provided with a sliding table (16) through an electric sliding block matched therewith, and the cutting support table (5) is mounted on the side wall of the sliding table (16).

5. The automatic belt cutting mechanism of claim 1, wherein, The pushing assembly comprises at least one guide frame (17) mounted on the upper end of the workbench (2), an upper mounting frame (18) mounted on the upper end of the workbench (2), an upper pushing roller (19) rotatably connected in the upper mounting frame (18), a driving motor mounted on the upper mounting frame (18) and driving the upper pushing roller (19) to rotate, a lower mounting frame (20) mounted on the workbench (2), and a lower pushing roller (21) rotatably connected in the lower mounting frame (20) and located below the upper pushing roller (19).

6. The automatic belt cutting mechanism of claim 1, wherein, The through opening (7) is rotatably connected with a supporting roller (22) located between the inlet (3) and the conveying assembly.

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