A tension detection device

Abstract

This utility model discloses a tension detection device, relating to the field of thread processing. It includes a first transmission wheel, a third transmission wheel, and a second transmission wheel arranged sequentially along the thread conveying direction. The thread is driven sequentially along the first, third, and second transmission wheels. The third transmission wheel is connected to a detection mechanism for measuring thread tension. The first transmission wheel is located above one side of the second transmission wheel, ensuring that the third transmission wheel is always subjected to tension from the thread away from the detection mechanism. The detection mechanism includes a tension sensor and a fixed base. The transmission surfaces of the first, third, and second transmission wheels all have anti-slip textures. The tension sensor is electrically connected to an external display device for data visualization. The fixed base has a slotted hole for the sliding of the screw shaft of the third transmission wheel, which is limited by a nut. This application achieves the technical effects of accurately measuring thread tension, preventing thread slippage, facilitating the observation of tension data, and allowing for certain adjustments to the position of the third transmission wheel.

Description

Technical Field

[0001] This utility model relates to the field of thread processing technology, and more specifically, to a tension detection device. Background Technology

[0002] With the rapid development of industrial manufacturing, the application of sewing threads and thread-like products is becoming increasingly widespread in many fields, such as medical, textile, and packaging industries. These industries also have increasingly stringent requirements for product quality, and the performance of sewing threads or thread-like materials during processing plays a crucial role in the quality of the final product.

[0003] The existing technologies cannot detect the tension of the sewing thread, which makes it impossible to understand and control the changes in tension in a timely manner during the processing of sewing thread or thread-like materials. This makes it difficult to ensure the consistency of tension, which in turn affects the quality and performance of the product.

[0004] In conclusion, how to achieve real-time detection of suture tension is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a tension detection device that can effectively realize the real-time detection of suture tension.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A tension detection device includes a first drive wheel, a third drive wheel, and a second drive wheel arranged sequentially along the thread conveying direction. The thread is driven sequentially along the first drive wheel, the third drive wheel, and the second drive wheel. The third drive wheel is connected to a detection mechanism for measuring the thread tension. The first drive wheel is located above one side of the second drive wheel so that the third drive wheel is always subjected to tension from the thread away from the detection mechanism.

[0008] Preferably, the device further includes a bracket, wherein the bracket is provided with a first support portion and a second support portion in sequence along the sewing thread conveying direction, the first transmission wheel is disposed on the first support portion, and the second transmission wheel is disposed on the second support portion.

[0009] Preferably, the first transmission wheel is rotatably disposed on the first support portion.

[0010] Preferably, the transmission surface of the first transmission wheel is provided with anti-slip texture.

[0011] Preferably, the second transmission wheel is rotatably mounted on the second support portion.

[0012] Preferably, the transmission surface of the second transmission wheel is provided with anti-slip texture.

[0013] Preferably, the detection mechanism includes a tension sensor mounted on the bracket and a fixed base connected to the sensing end of the tension sensor. The third transmission wheel is rotatably mounted on the fixed base. The sewing thread is driven by the third transmission wheel on the side close to the tension sensor. The upper edges of the first transmission wheel and the second transmission wheel are tangent to the lower edge of the third transmission wheel, so that the third transmission wheel is subjected to continuous tension from the sewing thread in the direction away from the tension sensor.

[0014] Preferably, it further includes an external display device, which is electrically connected to the tension sensor to visualize the tension sensor data.

[0015] Preferably, the transmission surface of the third transmission wheel is provided with anti-slip texture.

[0016] Preferably, the fixed base has an oblong hole, the extension direction of which is perpendicular to the line connecting the shafts of the first transmission wheel and the second transmission wheel. A screw is provided on one side of the shaft of the third transmission wheel, the screw is slidably disposed in the oblong hole, and the screw is limited to the oblong hole by a nut.

[0017] The tension detection device provided by this utility model can measure the tension of the suture in real time during the movement of the suture, thereby making the tension of suture materials detectable, realizing process data, and helping to ensure the consistency and stability of sewn products. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the tension detection device in this embodiment.

[0020] The reference numerals in the figures include:

[0021] 1. Bracket; 11. First support part; 12. Second support part; 2. Sewing thread; 3. First drive wheel; 4. Second drive wheel; 5. Tension sensor; 6. Fixing base; 7. Third drive wheel. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in this utility model do not indicate any order, quantity, or importance. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly. An embodiment of this application discloses a tension detection device.

[0024] The core of this invention is to provide a tension detection device.

[0025] Please refer to Figure 1 .

[0026] The tension detection device provided by this utility model includes a first transmission wheel 3, a third transmission wheel 7, and a second transmission wheel 4 arranged sequentially along the conveying direction of the thread 2. The thread 2 is driven sequentially along the first transmission wheel 3, the third transmission wheel 7, and the second transmission wheel 4. The third transmission wheel 7 is connected to a detection mechanism for measuring the tension of the thread 2. The first transmission wheel 3 is located above one side of the second transmission wheel 4 so that the third transmission wheel 7 is always subjected to tension of the thread 2 away from the detection mechanism.

[0027] Specifically, the first drive wheel 3, the third drive wheel 7, and the second drive wheel 4 are arranged along the conveying path of the thread 2. This arrangement allows the thread 2 to cooperate well with each component during transmission, enabling effective detection of the thread 2's tension. As the thread 2 passes through the first drive wheel 3, the third drive wheel 7, and the second drive wheel 4 in sequence, the detection mechanism can accurately obtain the tension data of the thread 2 at the third drive wheel 7. This is because the first drive wheel 3 and the second drive wheel 4 guide the direction of the thread 2, creating suitable detection conditions for the detection mechanism, allowing it to measure the tension of the thread 2 at specific positions and under specific conditions.

[0028] It should be noted that the first transmission wheel 3 and the second transmission wheel 4 can be arranged in the form of transmission wheel sets. Each transmission wheel set shall have at least one first transmission wheel 3 or a second transmission wheel 4, and the first transmission wheel 3 and the second transmission wheel 4 shall be close to the third transmission wheel 7. The first transmission wheel 3 shall be located above the second transmission wheel 4 on one side, so that the third transmission wheel 7 is always subjected to the tension of the sewing thread 2 away from the detection mechanism, thereby facilitating the detection mechanism to perform real-time detection of the tension of the sewing thread 2.

[0029] The aforementioned tension detection device can measure the tension of the suture 2 in real time, thereby making the tension of suture materials detectable, thus realizing process data and helping to ensure the consistency and stability of sewn products.

[0030] The tension detection device provided by this utility model will be described in more detail below with reference to the accompanying drawings and specific embodiments.

[0031] In one specific implementation, reference is made to... Figure 1 The tension detection device also includes a bracket 1. The bracket 1 is provided with a first support part 11 and a second support part 12 in sequence along the conveying direction of the sewing thread 2. The first transmission wheel 3 is provided on the first support part 11 and the second transmission wheel 4 is provided on the second support part 12.

[0032] Specifically, the bracket 1 has a first support portion 11 and a second support portion 12 arranged sequentially along the conveying direction of the thread 2. The first transmission wheel 3 is mounted on the first support portion 11, and the second transmission wheel 4 is mounted on the second support portion 12. This arrangement allows the first transmission wheel 3 and the second transmission wheel 4 to be stably mounted on the bracket 1, ensuring that the thread 2 can be driven sequentially along the first transmission wheel 3 and the second transmission wheel 4. This provides a stable structural foundation for the subsequent detection mechanism to accurately measure the tension of the thread 2, thereby facilitating the effective detection of the tension of the thread 2.

[0033] Optionally, a mounting plate is provided at the bottom of the bracket 1, and the supporting area of ​​the mounting plate is larger than the installation area of ​​the bracket 1, thereby effectively improving the installation stability of the bracket 1. Taking the conveying of the sewing thread 2 along the upper right to lower left of the bracket 1 as an example, the first support part 11 and the second support part 12 are respectively provided at the upper right and lower left of the bracket 1, and both extend to the upper left. An installation space is formed between the first support part 11 and the second support part 12 to facilitate the installation of the testing mechanism.

[0034] It should be noted that the bracket 1 is generally welded from metal profiles such as channel steel and angle steel, possessing sufficient strength and stability. The first support part 11 and the second support part 12 can be integrally formed on the bracket 1, or they can be independent components installed on the bracket 1 via bolts or other connecting parts. Their function is to provide stable support for the first transmission wheel 3 and the second transmission wheel 4, ensuring that each transmission wheel can be accurately positioned and rotated.

[0035] Based on any of the above embodiments, refer to Figure 1 The first transmission wheel 3 is rotatably mounted on the first support part 11.

[0036] Specifically, the first transmission wheel 3 is rotatably mounted on the first support portion 11 of the bracket 1. The first transmission wheel 3 is typically made of high-strength engineering plastics or metals to ensure its wear resistance and stability. For example, in applications requiring high precision, an aluminum alloy first transmission wheel 3 can be selected, which is lightweight and has high strength; while in cost-sensitive applications, a nylon first transmission wheel 3 can be used.

[0037] Optionally, the first drive wheel 3 is mounted on the first support part 11 via bearings. This mounting method allows the first drive wheel 3 to rotate flexibly, reducing frictional resistance between it and the first support part 11 and ensuring smooth transmission of the thread 2. Combinations of multiple first drive wheels 3 can adjust the transmission angle and direction of the thread 2 according to actual needs, adapting to different processing environments and process requirements. The combined use of the first drive wheels 3 can distribute the force on the thread 2, making the thread 2 transmit more stably, thereby improving the accuracy of tension detection.

[0038] Based on any of the above embodiments, refer to Figure 1 The second transmission wheel 4 is rotatably mounted on the second support part 12.

[0039] Specifically, the second drive wheel 4 is rotatably mounted on the second support portion 12 of the bracket 1. The material and construction characteristics of the second drive wheel 4 are similar to those of the first drive wheel 3; it can also be made of engineering plastics or metal. For example, in humid working environments, a stainless steel second drive wheel 4 can prevent rust and extend its service life.

[0040] Optionally, the second drive wheel 4 is mounted on the second support 12 using a bearing mounting method similar to that of the first drive wheel 3, ensuring its free rotation. The combination of multiple second drive wheels 4 can further guide the direction of the sewing thread 2, allowing it to smoothly leave the detection area and ensuring the stability of the entire transmission process. The combined use of the second drive wheels 4 can adjust the output angle and speed of the sewing thread 2 to meet the requirements of subsequent processing.

[0041] Based on any of the above embodiments, refer to Figure 1The detection mechanism includes a tension sensor 5 mounted on a bracket 1 and a fixed base 6 connected to the sensing end of the tension sensor 5. A third transmission wheel 7 is rotatably mounted on the fixed base 6. The sewing thread 2 is driven by the third transmission wheel 7 on the side close to the tension sensor 5. The upper edges of the first transmission wheel 3 and the second transmission wheel 4 are tangent to the lower edge of the third transmission wheel 7, so that the third transmission wheel 7 is subjected to continuous tension from the sewing thread 2 in the direction away from the tension sensor 5.

[0042] Specifically, the tension sensor 5 is mounted on the bracket 1, the fixing base 6 is connected to the sensing end of the tension sensor 5, and the third transmission wheel 7 is rotatably mounted on the fixing base 6. The thread 2 is driven by the third transmission wheel 7 on the side close to the tension sensor 5. The upper edges of the first transmission wheel 3 and the second transmission wheel 4 are tangent to the lower edge of the third transmission wheel 7. When the thread 2 moves, the third transmission wheel 7 will always be subjected to a force towards the upper left. The tension sensor 5 can then be positioned in the direction of this force so that the tension pulls the tension sensor 5 to deform. The tension sensor 5 can then output tension data. When the tension on the thread 2 changes, the force on the tension sensor 5 also changes accordingly, thereby realizing the detection of the tension of the thread 2.

[0043] Optionally, the tension sensor 5 typically employs a high-precision strain gauge sensor, which converts the applied tension into an electrical signal output. The mounting base 6 is generally made of a rigid metal material, such as steel, to ensure its stable support of the third drive wheel 7 and transmission of tension. The third drive wheel 7 can also be made of engineering plastics or metals; for example, food-grade plastics can be used in some medical applications with high hygiene requirements. The third drive wheel 7 is connected to the mounting base 6 via a shaft and can rotate freely around the shaft.

[0044] The thread 2 is driven by the third drive wheel 7 on the side closest to the tension sensor 5, so that the third drive wheel 7 is subjected to continuous tension from the thread 2 in the direction away from the tension sensor 5. When the tension of the thread 2 changes, the third drive wheel 7 transmits this force to the tension sensor 5, and the tension sensor 5 outputs different electrical signals accordingly, thereby realizing real-time monitoring of the tension of the thread 2.

[0045] It should be noted that because the sewing machine pulls the thread forward periodically and intermittently during operation, the tension of the sewing thread at the rear exhibits a periodic and wavy pattern, rather than a single value. The tension sensor, in conjunction with data processing, outputs and displays the real-time value of the sewing thread, including the second-highest peak value, the second-lowest peak value, the average peak value, the maximum-minimum difference between peak values, the second-highest trough value, the second-lowest trough value, the average trough value, the maximum-minimum difference between trough values, and the center value. The specific data processing method is a conventional data processing method.

[0046] Based on any of the above embodiments, the detection mechanism further includes an external display device, which is electrically connected to the tension sensor 5 to visualize the data from the tension sensor 5.

[0047] Specifically, the device is also equipped with an external display device, which is electrically connected to the tension sensor 5 to visualize the data from the tension sensor 5. The external display device can be an LCD screen, which can intuitively display the tension data measured by the tension sensor 5, allowing operators to easily monitor the tension of the suture 2 in real time. Operators can adjust the processing parameters in a timely manner based on the displayed data to ensure that the tension of the suture 2 meets the requirements.

[0048] Based on any of the above embodiments, the fixed base 6 is provided with a waist-shaped hole, the extension direction of the waist-shaped hole is perpendicular to the line connecting the shafts of the first transmission wheel 3 and the second transmission wheel 4, and a screw is provided on one side of the shaft of the third transmission wheel 7. The screw is slidably disposed in the waist-shaped hole and is limited in the waist-shaped hole by a nut.

[0049] Specifically, the fixed base 6 has a waist-shaped hole, the extension direction of which is perpendicular to the line connecting the shafts of the first transmission wheel 3 and the second transmission wheel 4. A screw is provided on one side of the shaft of the third transmission wheel 7, and the screw is slidably disposed within the waist-shaped hole. The screw is confined within the waist-shaped hole by a nut. This design allows the position of the third transmission wheel 7 to be finely adjusted within a certain range. When it is necessary to adjust the sensitivity of the detection mechanism to the tension of the thread 2 or to adapt to different thicknesses of thread 2, the nut can be loosened, the screw can be slid within the waist-shaped hole, and then the nut can be tightened to fix it. This adjustment method improves the flexibility and adaptability of the device.

[0050] It should be noted in this embodiment that the transmission surfaces of the first transmission wheel 3, the second transmission wheel 4, and the third transmission wheel 7 are all provided with anti-slip textures.

[0051] Specifically, the transmission surfaces of the first transmission wheel 3, the second transmission wheel 4, and the third transmission wheel 7 are all provided with anti-slip patterns, which can be serrated, wavy, or similar. For example, under high-speed operation, serrated anti-slip patterns can better increase the friction between the sewing thread 2 and the transmission wheel, preventing the sewing thread 2 from slipping.

[0052] The implementation principle of the tension detection device in this embodiment is as follows: The tension detection device, through the rational arrangement of the first transmission wheel 3, the second transmission wheel 4, and the detection mechanism, enables the tension generated by the thread 2 during transmission to be accurately detected by the tension sensor 5. The rotational design of each transmission wheel reduces friction between the thread 2 and the components, improving transmission efficiency and detection accuracy. The anti-slip texture ensures reliable contact between the thread 2 and the transmission wheels, preventing slippage. The bracket 1 provides a stable support structure for each component, ensuring the overall stability of the device. The external display device allows operators to intuitively obtain tension data, facilitating timely adjustments and control. The design of the waist-shaped hole and screw increases the flexibility and adaptability of the device, meeting different usage requirements. Compared with the prior art, this device can detect the tension of the thread 2 in real time, effectively solving the problem of the inability to detect the tension of the thread 2 in the prior art, better controlling the consistency of the thread 2, and improving product quality and performance.

[0053] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0054] The tension detection device provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A tension detection device, characterized in that, The device includes a first drive wheel (3), a third drive wheel (7), and a second drive wheel (4) arranged sequentially along the conveying direction of the sewing thread (2). The sewing thread (2) is driven sequentially along the first drive wheel (3), the third drive wheel (7), and the second drive wheel (4). The third drive wheel (7) is connected to a detection mechanism for measuring the tension of the sewing thread (2). The first drive wheel (3) is located above the second drive wheel (4) on one side, so that the third drive wheel (7) is always subjected to tension of the sewing thread (2) away from the detection mechanism.

2. The tension detection device according to claim 1, characterized in that, It also includes a bracket (1), which has a first support part (11) and a second support part (12) arranged sequentially along the conveying direction of the seam (2). The first transmission wheel (3) is arranged on the first support part (11), and the second transmission wheel (4) is arranged on the second support part (12).

3. The tension detection device according to claim 2, characterized in that, The first transmission wheel (3) is rotatably mounted on the first support (11).

4. The tension detection device according to claim 3, characterized in that, The transmission surface of the first transmission wheel (3) is provided with anti-slip texture.

5. The tension detection device according to claim 2, characterized in that, The second transmission wheel (4) is rotatably mounted on the second support (12).

6. The tension detection device according to claim 5, characterized in that, The transmission surface of the second transmission wheel (4) is provided with anti-slip texture.

7. The tension detection device according to claim 2, characterized in that, The detection mechanism includes a tension sensor (5) mounted on the bracket (1) and a fixed base (6) connected to the sensing end of the tension sensor (5). The third transmission wheel (7) is rotatably mounted on the fixed base (6). The sewing thread (2) is driven by the third transmission wheel (7) on the side close to the tension sensor (5). The upper edges of the first transmission wheel (3) and the second transmission wheel (4) are tangent to the lower edge of the third transmission wheel (7), so that the third transmission wheel (7) is subjected to continuous tension from the sewing thread (2) in the direction away from the tension sensor (5).

8. The tension detection device according to claim 7, characterized in that, It also includes an external display device, which is electrically connected to the tension sensor (5) to visualize the data of the tension sensor (5).

9. The tension detection device according to claim 7, characterized in that, The transmission surface of the third transmission wheel (7) is provided with anti-slip texture.

10. The tension detection device according to claim 7, characterized in that, The fixed base (6) has a waist-shaped hole. The extension direction of the waist-shaped hole is perpendicular to the line connecting the shafts of the first transmission wheel (3) and the second transmission wheel (4). A screw is provided on one side of the shaft of the third transmission wheel (7). The screw is slidably disposed in the waist-shaped hole. The screw is limited to the waist-shaped hole by a nut.

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