Seatbelt braid tension adjustment sensor wheel

Abstract

This utility model relates to the field of seat belt production, and more particularly to a seat belt weaving tension adjustment sensing wheel, comprising a base plate, a rotating wheel, a first roller, and a second roller. A bracket is fixed to the upper end of the base plate, and the rotating wheel is rotatably mounted between the brackets. The surface of the rotating wheel is provided with second rollers arranged in a circular array, and the outer side of the second roller is provided with the first roller. An annular contact is provided on one side of the outer wall of the rotating wheel. This device integrates dynamic conveying and high-frequency tension adjustment, solving the problems of uneven weaving, material damage, or low efficiency caused by lag in tension adjustment and human intervention errors in existing seat belt weaving processes.

Description

Technical Field

[0001] This utility model relates to the field of seat belt production, and in particular to a seat belt braid tension adjustment sensor wheel. Background Technology

[0002] A sensing wheel is a mechanical wheel that integrates tension detection and adjustment functions. It is mainly used in production lines such as textiles and seat belt weaving to monitor and adjust material tension in real time. Compared with traditional separate tension systems, the sensing wheel significantly improves response speed and control accuracy through its integrated design, while reducing mechanical structural complexity, making it suitable for high-speed, high-precision production scenarios.

[0003] A search revealed patent publication number CN206430847U, which discloses a sensor for detecting seat belt tension. The sensor includes a housing with openings on two opposite sidewalls for the seat belt to pass through. Inside the housing are: a rotating component with a wide groove allowing the seat belt to pass through, capable of rotating under the tension of the seat belt; a driving component that generates a force under the rotational force of the rotating component; an elastic component that undergoes elastic deformation under the force output by the driving component; and a sensing component disposed on the surface of the elastic component that generates an electrical signal under the deformation stress of the elastic component. The beneficial effect of this invention is that it can accurately detect the tension of the seat belt.

[0004] While existing technologies can achieve some seat belt tension adjustment during use, they suffer from drawbacks such as uneven weaving, material damage, or low efficiency due to lag in tension adjustment and human intervention errors. In view of this, we have proposed a seat belt weaving tension adjustment sensor wheel, which solves the above problems. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a seat belt braiding tension adjustment sensor wheel.

[0006] The technical solution of this utility model: a seat belt braiding tension adjustment sensing wheel, including a base plate, a rotating wheel, a roller one and a roller two. A bracket is fixed at the upper end of the base plate, and a rotating wheel is rotatably installed between the brackets. The surface of the rotating wheel is provided with roller two arranged in a ring array. Roller one is provided on the outer side of roller two. A ring contact is provided on one side of the outer wall of the rotating wheel.

[0007] When using this device, the safety belt to be adjusted can be inserted between roller one and roller two, and then passed over the surface of the rotating wheel. At least one pair of rollers one and two should act on the safety belt. The rotating wheel acts as a bridge for transporting and conveying. During the transport, rollers one and two in contact with the safety belt use a linear motor to press the safety belt tight, and then the rotation is reversed momentarily to provide a certain tension. After that, the speed is quickly reduced to adjust to the initial state of the safety belt. This operation is repeated multiple times to achieve tension adjustment during the transport of the safety belt. The adjustment value is calculated by a torque sensor through a mathematical model (by plotting a smooth curve based on the linear resistance sensed by the torque sensor, the average value is calculated using a calculus algorithm, thereby measuring the tension of the safety belt). This device has the function of quickly and conveniently adjusting the tension of the safety belt and has high practicality.

[0008] Preferably, the surface of the rotating wheel is fixed with linear motors arranged in a circular array, and the output end of the linear motor is fixed with a moving block. The roller is rotatably installed between the moving blocks. The linear motor drives the roller to dynamically adjust the clamping force to adapt to safety belts of different thicknesses / materials, avoid overpressure damage to the braided structure, and the linear motor has millisecond-level displacement control to instantly match changes in tension requirements.

[0009] Preferably, the second roller is rotatably installed inside the wheel, and the first roller, the second roller and the rotating wheel's circular rotation center axis are on the same plane. The coplanar design of the first roller, the second roller and the rotating wheel ensures that the direction of tension is always perpendicular to the surface of the seat belt, reducing lateral friction loss.

[0010] Preferably, a rotating motor is provided on one side of the bracket. The output shaft of the rotating motor is fixedly connected to the rotation center on one side of the wheel. The rotating motor drives the wheel to rotate as a whole, maintaining the basic conveying speed and providing a stable reference for local tension adjustment.

[0011] Preferably, one side of the rotating wheel is provided with a distributor arranged in a ring array. Each distributor provides distributed drive power to each roller 2. The distributor supplies power to each roller 2 independently, avoiding interference from long-distance wiring and ensuring the power stability of multi-roller synchronous control. The power of the distributor is transmitted through the ring contact via an external brush.

[0012] Preferably, the outer wall of one side of the roller is provided with a second rotating motor arranged in a ring array. The output shaft of the second rotating motor is fixedly connected to the rotation center of one side of the roller. The second rotating motor independently controls the roller to reverse, thereby achieving instantaneous tension enhancement in a specific section and accurately matching process requirements.

[0013] Preferably, the tail end of the second rotating motor is provided with a torque sensor. The torque sensor is used to sense the change in torque of the second rotating motor. The torque sensor directly monitors the change in motor load, dynamically corrects the reversing force, and forms a high-precision tension closed-loop control.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] I. This utility model achieves in-situ sensing and real-time control of seat belt tension through the collaborative design of a rotary wheel-roller composite structure and a distributed drive system. Traditional technologies rely on external tension wheels or offline detection, resulting in slow response speeds and susceptibility to mechanical transmission errors. This device, however, embeds a torque sensor at the tail of the rotating motor II, directly capturing changes in the resistance of the roller II. A calculus algorithm converts instantaneous torque fluctuations into average tension values, improving accuracy. Furthermore, the linear motor-driven roller I can dynamically adjust the clamping force, which, combined with the instantaneous reverse rotation of roller II, forms a high-frequency cycle of "clamping-releasing-resetting," far exceeding the 5N level accuracy of traditional pneumatic or lever-type adjustments.

[0016] Second, based on the first beneficial effect, this device can adapt to complex weaving processes. For example, when weaving the reinforcing edge of a seatbelt, the reverse rotation force of a specific roller can be increased through a preset program to achieve localized tension enhancement; or different power can be distributed through a power distributor to allow multiple rollers to work differently, meeting the requirements of gradual tension. Furthermore, the data from the torque sensor can be networked to the central control system, combining AI algorithms to optimize the tension curve and adapt to the process development of new materials (such as high-modulus fibers). Compared to the limitations of existing technologies that require downtime for mechanical structure adjustments, this device only requires modification of software parameters to switch production modes, making it particularly suitable for the flexible manufacturing of small-batch, multi-variety seatbelts.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] Figure 1 This is a three-dimensional perspective view of the present invention from a first angle;

[0019] Figure 2 This is a two-dimensional perspective view of the present invention.

[0020] Figure 3 This is a front view schematic diagram of the present invention;

[0021] Figure 4 For the present utility model Figure 1 Enlarged schematic diagram of structure A in the middle.

[0022] Figure label:

[0023] 1. Base plate; 2. Bracket; 3. Annular contact; 4. Rotary wheel; 5. Motor 1; 6. Roller 2; 7. Roller 1; 8. Power distributor; 9. Torque sensor; 10. Motor 2; 11. Moving block; 12. Linear motor. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] Please see Figures 1-4 As shown, this embodiment is a seat belt braiding tension adjustment sensor wheel, including a base plate 1, a rotating wheel 4, a first roller 7 and a second roller 6. A bracket 2 is fixed on the upper end of the base plate 1, and the rotating wheel 4 is rotatably installed between the brackets 2. The surface of the rotating wheel 4 is provided with the second roller 6 arranged in a ring array. The first roller 7 is provided on the outer side of the second roller 6, and a ring contact 3 is provided on one side of the outer wall of the rotating wheel 4.

[0030] When using this device, the safety belt to be adjusted can be inserted between roller 7 and roller 6, and then passed over the surface of the rotating wheel 4, ensuring that at least one pair of rollers 7 and 6 act on the safety belt. The rotating wheel 4 acts as a bridge for transporting and conveying. During transport, rollers 6 and 7 in contact with the safety belt use the linear motor 12 to press the safety belt tight, and then instantly reverse to provide a certain tension. After that, the speed is quickly reduced to adjust to the initial state of the safety belt. By repeating this operation multiple times, the tension of the safety belt can be adjusted during transport. The adjustment value is calculated by the torque sensor 9 through a mathematical model (by plotting a smooth curve based on the linear resistance sensed by the torque sensor 9, and using a calculus algorithm to calculate the average detection value, the tension of the safety belt is measured). This device has the function of quickly and conveniently adjusting the tension of the safety belt and has high practicality.

[0031] Example 2

[0032] Please see Figures 1-4 As shown, this embodiment, based on embodiment 1, further includes: linear motors 12 arranged in a ring array fixed on the surface of the rotating wheel 4, moving blocks 11 fixed at the output end of the linear motors 12, and rollers 7 rotatably mounted between the moving blocks 11. The linear motors 12 drive rollers 7 to dynamically adjust the clamping force to adapt to safety belts of different thicknesses / materials, avoid overpressure damage to the braided structure, and the linear motors 12 have millisecond-level displacement control to instantaneously match changes in tension requirements.

[0033] Roller 2 6 is rotatably installed inside the wheel 4. The circular rotation center axis of roller 1 7, roller 2 6 and wheel 4 are on the same plane. The coplanar design of roller 1 7, roller 2 6 and wheel 4 ensures that the direction of tension is always perpendicular to the surface of the seat belt, reducing lateral friction loss.

[0034] A rotating motor 5 is provided on one side of the bracket 2. The output shaft of the rotating motor 5 is fixedly connected to the rotation center on one side of the wheel 4. The rotating motor 5 drives the wheel 4 to rotate as a whole, maintaining the basic conveying speed and providing a stable benchmark for local tension adjustment.

[0035] One side of the rotating wheel 4 is provided with a distributor 8 arranged in a ring array. Each distributor 8 provides distributed drive power to each roller 6. The distributor 8 supplies power to each roller 6 independently, avoiding interference from long-distance wiring and ensuring the power stability of multi-roller synchronous control. The power of the distributor 8 is transmitted through the ring contact 3 by an external brush.

[0036] The outer wall of one side of the roller 4 is provided with a rotating motor 2 10 arranged in a ring array. The output shaft of the rotating motor 2 10 is fixedly connected to the rotation center of one side of the roller 2 6. The rotating motor 2 10 independently controls the roller 2 6 to reverse, thereby achieving instantaneous tension enhancement in a specific section and accurately matching process requirements.

[0037] The tail of the rotating motor 2 10 is equipped with a torque sensor 9. The torque sensor 9 is used to sense the change in torque of the rotating motor 2 10. The torque sensor 9 directly monitors the change in motor load, dynamically corrects the reversing force, and forms a high-precision tension closed-loop control.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A seat belt braid tension adjustment sensor wheel, comprising a base plate (1), a rotating wheel (4), a first roller (7), and a second roller (6), characterized in that: The base plate (1) is fixed with a bracket (2) at the upper end. A rotating wheel (4) is rotatably installed between the brackets (2). The surface of the rotating wheel (4) is provided with rollers (6) arranged in a ring array. Roller (7) is provided on the outer side of rollers (6). A ring contact (3) is provided on one side of the outer wall of the rotating wheel (4).

2. The seat belt braid tension adjustment sensor wheel according to claim 1, characterized in that: The surface of the rotating wheel (4) is fixed with linear motors (12) arranged in a ring array. The output end of the linear motor (12) is fixed with a moving block (11). The roller (7) is rotatably installed between the moving blocks (11).

3. The seat belt braid tension adjustment sensor wheel according to claim 1, characterized in that: The second roller (6) is rotatably installed inside the rotating wheel (4), and the first roller (7), the second roller (6) and the rotating wheel (4) are on the same plane.

4. The seat belt braid tension adjustment sensor wheel according to claim 1, characterized in that: The bracket (2) is provided with a rotating motor (5) on one side, and the output shaft of the rotating motor (5) is fixedly connected to the rotation center on one side of the wheel (4).

5. The seat belt braid tension adjustment sensor wheel according to claim 4, characterized in that: The rotating wheel (4) is provided with a distribution device (8) arranged in a ring array on one side, and each of the distribution devices (8) provides distributed driving power to each roller (6).

6. The seat belt braid tension adjustment sensor wheel according to claim 1, characterized in that: The outer wall of one side of the rotating wheel (4) is provided with a rotating motor two (10) arranged in a ring array, and the output shaft of the rotating motor two (10) is fixedly connected to the rotation center of one side of the roller two (6).

7. The seat belt braid tension adjustment sensor wheel according to claim 6, characterized in that: The tail of the second rotating motor (10) is provided with a torque sensor (9), which is used to sense the change in torque of the second rotating motor (10).

Images