Tension detection device and use method thereof

Abstract

The invention relates to a tension detection device and a use method thereof. The tension detection device comprises a frame body, a driving assembly, a pressure sensor, a moving part and a measuring assembly, the first end of the driving assembly is arranged on the frame body in a sliding mode in the first direction, the first direction is the radial direction of the rolled fibers, the second end of the driving assembly is connected with the moving part, and the driving assembly drives the moving part to abut against the rolled fibers in the first direction; the pressure sensor is arranged on the moving part, and the pressure sensor detects the pressure between the moving part and the rolled cellosilk; the measuring assembly measures the sliding distance of the moving part in the first direction. According to the tension detection device, after the roll-shaped winding process of the fibers is completed, tension detection can be conducted on an original winding tool. The driving assembly drives the moving part to move and abut against the radial side face of the roll-shaped fiber yarn, the pressure sensor and the measuring assembly detect and calculate related numerical values, the accurate tension numerical value of the roll-shaped fiber yarn can be obtained, the detection process is efficient and convenient, and the detection result is accurate.

Description

Technical Field

[0001] The present application relates to the field of tension detection technology, and in particular to a tension detection device and a method of using the same. Background Art

[0002] At present, when fiber companies produce raw yarn, the tension detection method is to cut a certain length of fiber yarn according to standard sampling, and then send the sample to the quality inspection department. The quality inspection department measures the tension of the fiber yarn by stretching. This detection method cannot fully reflect the tension of the fiber yarn, which not only consumes a lot of manpower but also has low efficiency. In addition, for the tension detection of the rolled fiber yarn wound into a shaft, the quality inspectors currently use the method of visual observation and hand pressing to make qualitative estimates. This method requires high workload for quality inspectors and low accuracy of the test results. Summary of the invention

[0003] In order to overcome the problems existing in the related art, the present application provides a tension detection device and a method for using the same.

[0004] According to an embodiment of the present disclosure, there is provided a tension detection device, comprising: a frame, a driving assembly, a pressure sensor, a moving part and a measuring assembly;

[0005] The first end of the driving assembly is slidably disposed on the frame along a first direction, the first direction being the radial direction of the rolled fiber filament, the second end of the driving assembly is connected to the moving member, and the driving assembly is used to drive the moving member to abut against the rolled fiber filament along the first direction;

[0006] The pressure sensor is arranged on the moving member, and the pressure sensor is used to detect the pressure between the moving member and the rolled fiber filament;

[0007] The measuring component is used to measure the distance moved by the moving member along the first direction.

[0008] In some embodiments, the tension detection device further comprises a fixing member, wherein the fixing member is disposed on the frame, wherein the fixing member and the moving member are symmetrically disposed about a central axis of the rolled fiber yarn, and along the first direction, the fixing member supports the rolled fiber yarn.

[0009] In some embodiments, the first direction is a horizontal direction, and the moving member and the fixed member are respectively located on both sides of the horizontal direction of the rolled fiber filament.

[0010] In some embodiments, the drive assembly includes a rack, a gear, and a connecting frame;

[0011] The rack is arranged on the frame, and the extending direction of the rack is the same as the first direction;

[0012] The gear is arranged on one side of the connecting frame, and the gear is meshed with the rack;

[0013] The other side of the connecting frame is connected to the moving member.

[0014] In some embodiments, the driving assembly further includes a guide member and a sliding member, wherein the guide member is disposed on the frame, and an extension direction of the guide member is the same as the first direction; the sliding member is disposed on the connecting frame, and the sliding member slides along the guide member.

[0015] In some embodiments, the drive assembly further comprises a fastener, wherein the fastener is disposed on the sliding member and is used to lock the sliding member on the guide member.

[0016] In some embodiments, the driving assembly further includes a first limit block and a second limit block, wherein the first limit block and the second limit block are respectively located at two ends of the rack.

[0017] In some embodiments, a side of the movable member close to the rolled fiber filament is covered with a first protective layer, and / or a side of the fixed member close to the rolled fiber filament is covered with a second protective layer.

[0018] In some embodiments, the cross section of the moving member is arc-shaped, so that the side of the moving member close to the rolled fiber yarn is attached to the surface of the rolled fiber yarn, and / or,

[0019] The cross section of the fixing piece is arc-shaped, so that the side of the fixing piece close to the rolled fiber yarn is attached to the surface of the rolled fiber yarn.

[0020] A method for using a fiber tension detection device, using the tension detection device as described in the first aspect, comprises the following steps:

[0021] S1: positioning the moving part of the tension detection device on the radial side of the rolled fiber yarn;

[0022] S2: the driving component of the tension detection device moves along the first direction to a position close to the central axis of the rolled fiber yarn, and the driving component drives the moving member to abut against the rolled fiber yarn;

[0023] S3: when the value detected by the pressure sensor of the tension detection device is a preset pressure p, the measuring component of the tension detection device starts to measure the distance moved by the moving member;

[0024] S4: When the measuring component measures that the moving distance of the moving member is a preset distance, the value detected by the pressure sensor is f, and the tension F=fp of the rolled fiber yarn is obtained.

[0025] The technical solution provided by the embodiment of the present application may include the following beneficial effects: the tension detection device in the present application can perform tension detection on the original winding tool after the fiber completes the winding process. The driving component drives the moving part to move and abut against the radial side of the rolled fiber filament, and the pressure sensor and the measuring component detect and calculate the relevant values, so as to obtain the accurate tension value of the rolled fiber filament, and the detection process is efficient and convenient, and the detection result is accurate.

[0026] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0028] Figure 1 It is a schematic diagram showing a tension detection device during detection according to an exemplary embodiment.

[0029] Figure 2 is a front view of a tension detection device according to an exemplary embodiment.

[0030] Figure 3 is a cross-sectional view of a tension detection device according to an exemplary embodiment.

[0031] Reference numerals:

[0032] 1. Frame; 11. Base; 12. Support frame;

[0033] 2. driving assembly; 21. rack; 22. gear; 23. connecting frame; 24. hand wheel; 25. guide member; 251. guide groove; 26. sliding member; 27. fastener; 28. first limit block; 29. ​​second limit block;

[0034] 3. Pressure sensor; 4. Moving part; 5. Fixed part; 6. Rolled fiber filament. DETAILED DESCRIPTION

[0035] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0036] At present, when fiber companies produce raw yarn, the tension detection method is to cut a certain length of fiber yarn according to standard sampling, and then send the sample to the quality inspection department. The quality inspection department measures the tension of the fiber yarn by stretching. This detection method cannot fully reflect the tension of the fiber yarn, which not only consumes a lot of manpower but also has low efficiency. In addition, for the tension detection of the rolled fiber yarn wound into a shaft, the quality inspectors currently use the method of visual observation and hand pressing to make qualitative estimates. This method requires high workload for quality inspectors and low accuracy of the test results.

[0037] The present application provides a tension detection device, which detects the tension of rolled fiber yarns. Of course, this device can also detect the tension of other rolled yarn bundles.

[0038] like Figure 1-Figure 3 As shown, a tension detection device includes a frame 1, a drive assembly 2, a pressure sensor 3, a moving part 4 and a measuring assembly (not shown in the figure). The frame 1, as the supporting base of the entire device, has sufficient strength and rigidity to bear the weight of the moving part 4, the drive assembly 2, etc., and the frame 1 also has stability and vibration resistance to reduce the influence of external interference on the measurement results. The material of the frame 1 can be 4162 alloy, 440C stainless steel or carbon steel, etc.

[0039] In one embodiment, Figure 1 As shown, the frame 1 includes a base 11 and a support frame 12, both of which are plate-shaped, the base 11 is horizontally placed, and two support frames 12 are provided, and the two support frames 12 are fixed on both sides above the base 11, and the arrangement method can be integrated or connected by bolts, that is, the two support frames 12 are arranged opposite to each other. In other embodiments, the base 11 and the support frame 12 can be spliced ​​by multiple I-beams, channel steels or angle steels. In other embodiments, universal wheels are provided at the bottom of the base 11 to facilitate the movement of the device.

[0040] The first end of the driving assembly 2 is slidably disposed on the frame 1 along a first direction, the first direction being the radial direction of the rolled fiber filament 6, and the second end of the driving assembly 2 is connected to the moving member 4, and the driving assembly 2 drives the moving member 4 to abut against the rolled fiber filament 6 along the first direction. The driving assembly 2 can be provided with driving force by, for example, a cylinder and a hydraulic cylinder.

[0041] In one embodiment, if Figure 1 As shown, the bottom of the driving assembly 2 is slidably disposed on the frame 1 along a first direction, the first direction being the x direction, i.e., the horizontal transverse direction, the driving assembly 2 is slidably disposed on the frame 1 along the horizontal transverse direction, and one side of the top of the driving assembly is connected to the moving member 4. The driving assembly 2 is located on the left side of the rolled fiber filament 6, and the driving assembly 2 moves rightward to drive the moving member 4 to move rightward, and the moving member 4 moves rightward until it abuts against the rolled fiber filament 6.

[0042] The pressure sensor 3 is arranged on the moving member 4, and the pressure sensor 3 is used to detect the pressure between the moving member 4 and the rolled fiber filament 6. The pressure sensor 3 can convert the pressure signal into an electrical signal, provide accurate data for subsequent tension calculation, and improve the accuracy of detection. In one embodiment, the pressure sensor 3 is a column pressure sensor 3, which can be used to detect a pressure of 1kg-200kg.

[0043] The measuring assembly is used to measure the distance that the moving member 4 moves along the first direction. Figure 1 In the illustrated embodiment, the measuring assembly is used to measure the distance moved by the moving member 4 along the x-direction.

[0044] In one embodiment, the measuring component is a distance sensor, which is arranged on the moving member 4. The distance sensor converts the distance moved by the moving member 4 into an electrical signal, which is convenient for subsequent calculation of tension. In other embodiments, the measuring component is a scale line, which is arranged on the base 11 of the frame 1. The distance moved by the moving member 4 is the same as the distance moved by the driving member 2. By reading the distance moved by the driving member 2, the distance moved by the moving member 4 can be obtained. The setting of the scale line can obtain the distance moved by the moving member 4 in real time.

[0045] The calculation formula of tension is F=fp, wherein the driving component 2 drives the moving member 4 to move along the first direction to a position close to the central axis of the rolled fiber filament 6. During the movement, when the pressure sensor 3 detects that the pressure is the preset pressure p, the measuring component starts to measure the distance moved by the moving member 4. When the distance moved by the moving member 4 is the preset distance, the reading of the pressure sensor 3 is f. The range of the preset pressure p is 1.5N-2.5N, and the preset pressure p can be set to 1.5N, 2N, and 2.5N. The range of the preset distance is 5mm-15mm, and the preset distance can be set to 5mm, 10mm, and 15mm.

[0046] In one embodiment, the data detected by the pressure sensor 3 and the measuring assembly are substituted into a formula and manually calculated to obtain the tension of the rolled fiber filament 6 .

[0047] In other embodiments, a controller (not shown in the figure) is also provided, and the controller is electrically connected to the pressure sensor 3 and the distance sensor (not shown in the figure). The pressure sensor 3 transmits the detected pressure data to the controller, and the distance sensor transmits the detected distance data to the controller. The tension calculation formula is input into the controller, and the tension of the rolled fiber filament 6 can be quickly obtained through the controller, so that automatic data processing can be realized and detection efficiency can be improved.

[0048] The tension detection device in the present application can perform tension detection on the original winding tool after the fiber has completed the winding process. The driving component 2 drives the moving part 4 to move and abut against the radial side of the rolled fiber filament 6. The pressure sensor 3 and the measuring component detect the relevant values ​​and calculate, and can obtain the accurate tension value of the rolled fiber filament 6. The detection process is efficient and convenient, and the detection result is accurate.

[0049] According to an exemplary embodiment, this embodiment provides a tension detection device, including a frame 1, a driving assembly 2, a pressure sensor 3, a moving member 4 and a measuring assembly. The first end of the driving assembly 2 is slidably arranged on the frame 1 along a first direction, the first direction being the radial direction of the rolled fiber filament 6, the second end of the driving assembly 2 is connected to the moving member 4, and the driving assembly 2 is used to drive the moving member 4 to abut against the rolled fiber filament 6 along the first direction. The pressure sensor 3 is arranged on the moving member 4, and the pressure sensor 3 is used to detect the pressure between the moving member 4 and the rolled fiber filament 6. The measuring assembly is used to measure the distance that the moving member 4 slides along the first direction. Among them, the tension F of the rolled fiber filament 6 is fp, and when the driving assembly 2 drives the moving member 4 to move along the first direction to a position close to the central axis of the rolled fiber filament 6, when the pressure detected by the pressure sensor 3 is a preset pressure p, when the measuring assembly starts to measure the distance moved by the moving member 4 as a preset distance, the reading of the pressure sensor 3 is f.

[0050] The tension detection device further includes a fixing member 5, which is disposed on the frame 1. The fixing member 5 and the moving member 4 are symmetrically disposed about the central axis of the rolled fiber filament 6 along the first direction, and the fixing member 5 supports the rolled fiber filament 6 in the first direction. The fixing member 5 provides a stable support for the rolled fiber filament 6, so that the rolled fiber filament 6 will not shake or shift when the moving member 4 is performing a measurement operation. This helps the pressure sensor and the distance sensor to obtain more stable and accurate data, thereby improving the stability and reliability of the entire tension detection process. In one embodiment, the fixing member 5 and the moving member 4 have the same structure, which can reduce production costs.

[0051] In some embodiments, Figure 1 As shown, the first direction is the horizontal direction, and the moving member 4 and the fixing member 5 are respectively located on both sides of the horizontal direction of the rolled fiber filament 6. The gravity of the rolled fiber filament 6 can be prevented from affecting the measurement result during measurement. Because the gravity direction is the vertical direction, when measuring in the horizontal direction, the gravity will not directly act on the contact part between the moving member 4 and the rolled fiber filament, nor will it act on the contact part between the fixing member 5 and the rolled fiber filament, and will not interfere with the pressure data detected by the pressure sensor 3, thereby ensuring that the measurement result more accurately reflects the actual tension of the rolled fiber filament 6, and improving the accuracy and reliability of the detection.

[0052] In some embodiments, the driving assembly 2 includes a rack 21, a gear 22 and a connecting frame 23. The rack 21 is arranged on the frame 1, and the extension direction of the rack 21 is parallel to the first direction. The gear 22 is arranged on one side of the connecting frame 23, and the gear 22 is meshed with the rack 21. The other side of the connecting frame 23 is connected to the moving member 4. The structure of the rack 21 and the gear 22 is relatively simple, and it is not easy to have complex faults during long-term operation. The combination of the rack 21 and the gear 22 can adapt to a variety of different working environments and working requirements. In the tension detection device, no matter how the specifications of the rolled fiber yarn 6 change, as long as the appropriate gear 22 and rack 21 parameters are adjusted, the power requirements for tension detection of rolled fiber yarns 6 of different specifications can be met. The connecting frame 23 can be flexibly designed according to actual conditions to adapt to different installation spaces and connection methods, thereby improving the adaptability and versatility of the entire driving assembly.

[0053] exist Figure 1 In the embodiment shown, the direction of the rack 21 is the x direction, the connecting frame 23 is rod-shaped, and the extending direction of the connecting frame 23 is the z direction. Along the y direction, the connecting frame 23 is located on one side of the gear 22, and the gear 22 is rotatably arranged on the connecting frame 23 near the side of the rack 21, and the gear 22 is located at the lower part of the connecting frame 23. The gear 22 is meshed with the rack 21, and the gear 22 rotates along the rack 21, driving the connecting frame 23 to move along the direction in which the rack 21 extends, that is, the connecting frame 23 approaches or moves away from the rolled fiber filament 6, and at the same time drives the moving member 4 to approach or move away from the rolled fiber filament 6. In some embodiments, a drive motor is provided, so that the drive motor is fixed on the connecting frame 23, the output end of the drive motor is connected to the gear 22 to drive the gear 22 to rotate, and the controller is connected to the drive motor to control the drive motor to turn on and off. In other embodiments, a hand wheel 24 is provided, and the hand wheel 24 is coaxially connected to the gear 22, and the hand wheel 24 is rotated to drive the gear 22 to rotate.

[0054] In other embodiments, the rack 21 and the gear 22 may be a slider and a slide bar, the slide bar is disposed on the frame 1, the extension direction of the slide bar is the same as the first direction, the slider is connected to the connecting frame 23 and slides along the slide bar to drive the connecting frame 23 to move. Alternatively, the rack 21 and the gear 22 may also be configured as a cylinder, the fixed portion of the cylinder is disposed on the frame 1, and the telescopic portion of the cylinder is connected to the connecting frame 23 to drive the connecting frame 23 to move.

[0055] In some embodiments, the driving assembly 2 also includes a guide member 25 and a sliding member 26. The guide member 25 is arranged on the frame body 1. The extension direction of the guide member 25 is the same as the first direction. The sliding member 26 is arranged on the connecting frame 23. The sliding member 26 slides along the guide member 25 to drive the connecting frame 23 to slide.

[0056] exist Figure 1In the embodiment shown, the guide member 25 is a plate-like object, and the guide member 25 extends along the x direction. The guide member 25 is arranged on the frame 1, and a guide groove 251 is arranged on the guide member 25. The extension direction of the guide groove 251 is the same as the extension direction of the guide member 25, that is, the slide member 26 is arranged in the middle of the connecting frame 23, and the slide member 26 passes through the guide groove 251. The slide member 26 slides along the extension direction of the guide groove 251, that is, the slide member 26 slides along the x direction, driving the connecting frame 23 to slide along the x direction. The guide groove 251 is in the shape of a strip, and the cross section of the slide member 26 is square. The upper and lower sides of the slide member 26 fit the upper and lower sides of the guide groove 251. The square cross section of the slide member 26 is more stable than the circular cross section and is not easy to rotate. In other embodiments, the slide member 26 can be cylindrical, and is sleeved on the outer side of the guide member 25, and slides along the extension direction of the guide member 25.

[0057] By setting the guide member 25, a precise guide path is provided for the movement of the sliding member 26, and a precise guide path is provided for the connecting frame 23 and the moving member 4, effectively avoiding the shaking, deviation, etc. that may occur during the movement of the connecting frame 23, so that the moving member 4 can move more accurately along the radial direction of the rolled fiber yarn 6.

[0058] In some embodiments, the drive assembly 2 further includes a fastener 27, which is disposed on the sliding member 26 and is used to lock the sliding member 26 on the guide member 25. Figure 1 In the illustrated embodiment, the slide 26 includes a first portion and a second portion. Figure 3 As shown, the cross section of the first portion is square and is located in the guide groove 251. Figure 1 The length of the first portion along the y direction is less than the thickness of the guide member 25, as shown in FIG. Figure 2 The second part shown is a screw rod, that is, one end of the screw rod is located in the guide groove 251 , and the fastener 27 is configured as a nut, which is screwed on the screw rod to lock the sliding member 26 and the guide member 25 .

[0059] When the fastener 27 locks the slide 26 on the guide 25, the slide 26 cannot slide further, which facilitates the measurement component to perform accurate measurement. When measurement is not required, the fastener 27 is released from locking the slide 26 and the guide 25, which facilitates the slide 26 to move along the guide 25. The fastener 27 plays a role in locking the position of the slide 26 in the tension detection device, ensuring that the measurement component measures accurate values.

[0060] In some embodiments, the driving assembly 2 further includes a first limit block 28 and a second limit block 29, which are respectively located at two ends of the rack 21. The first limit block 28 and the second limit block 29 have the same appearance. The first limit block 28 and the second limit block 29 are both arranged on the frame 1.

[0061] The first limit block 28 and the second limit block 29 are provided to limit the range of motion of the gear 22 and the connecting frame 23. When the gear 22 moves on the rack 21, once it reaches the position of the first limit block 28 or the second limit block 29, it cannot continue to move in that direction, thereby preventing the gear 22 from falling off the rack 21 or the connecting frame 23 from colliding with other components due to excessive movement, thereby ensuring the safety and reliability of the operation of the driving assembly 2.

[0062] In some embodiments, a first protective layer (not shown) is provided on one side of the moving member 4 close to the rolled fiber filament 6. The first protective layer can be at least one of a rubber layer and a sponge layer. The provision of the first protective layer can prevent the moving member 4 from scratching or wearing the rolled fiber filament 6, thereby better protecting the integrity of the rolled fiber filament 6.

[0063] In some other embodiments, a second protective layer (not shown) is provided on one side of the fixing member 5 close to the rolled fiber filament 6. The second protective layer may be the same as or different from the first protective layer. The second protective layer is at least one of a rubber layer and a sponge layer. The provision of the second protective layer can prevent the fixing member 5 from scratching or wearing the rolled fiber filament 6, thereby better protecting the integrity of the rolled fiber filament 6.

[0064] In some embodiments, the cross-section of the moving member 4 is arc-shaped, so that the side of the moving member 4 close to the rolled fiber yarn 6 is in contact with the surface of the rolled fiber yarn 6. The setting of the arc-shaped cross-section enables the pressure to be more evenly distributed on the radial side of the rolled fiber yarn 6 when the moving member 4 abuts against the rolled fiber yarn 6, thereby avoiding damage to the surface of the rolled fiber yarn 6 due to excessive local pressure, and protecting the surface of the rolled fiber yarn 6 from damage in all directions.

[0065] In some other embodiments, the cross-section of the fixing member 5 is arc-shaped, so that the side of the fixing member 5 close to the rolled fiber filament 6 is attached to the surface of the rolled fiber filament 6. The setting of the arc-shaped cross-section enables the fixing member 5 to support the rolled fiber filament 6 with a more even distribution of the supporting force on the radial side of the rolled fiber filament 6, thereby avoiding damage to the surface of the rolled fiber filament 6 due to excessive local pressure, and protecting the surface of the rolled fiber filament 6 from damage in all directions.

[0066] The present application also provides a method for using a tension detection device, which is applied to the tension detection device described above, in combination with Figures 1 to 3 The method for using the tension detection device in the present application comprises the following steps:

[0067] S1: Position the moving member 4 of the tension detection device on the radial side of the rolled fiber 6

[0068] In step S1 , after the rolled fiber yarn 6 is wound, tension detection can be performed at the original winding station, wherein the central axis of the rolled fiber yarn 6 is horizontally placed so that the moving member 4 is close to the radial side of the rolled fiber yarn 6 .

[0069] S2: The driving assembly 2 of the tension detection device moves along the first direction to a position close to the central axis of the rolled fiber filament 6, and the driving assembly 2 drives the moving member 4 to abut against the rolled fiber filament 6

[0070] In step S2, the driving assembly 2 moves along a first direction and approaches the rolled fiber filament 6. Figure 1 In the illustrated embodiment, the driving assembly 2 approaches the coiled fiber filament 6 along the x direction, and drives the moving member 4 to approach the coiled fiber filament 6 , so that the moving member 4 abuts against the coiled fiber filament 6 .

[0071] S3: When the value detected by the pressure sensor 3 of the tension detection device is the preset pressure p, the measuring component of the tension detection device starts to measure the distance moved by the moving member 4

[0072] In step S3, when the driving component 2 drives the moving member 4 to approach the coiled fiber filament 6 and abut against each other, when the pressure between the moving member 4 and the coiled fiber filament 6 reaches the preset pressure p, the driving component 2 continues to drive the moving member 4 to abut against the coiled fiber filament 6, and measures the distance moved by the moving member 4 after the pressure between the moving member 4 and the coiled fiber filament 6 reaches the preset pressure p. The preset pressure p ranges from 1.5N to 2N, and the preset pressure p can be 1.5N, 2N or 2.5N.

[0073] S4: When the measuring component measures that the moving distance of the moving member 4 is the preset distance, the value detected by the pressure sensor 3 is f, and the tension F of the rolled fiber filament 6 is obtained as fp

[0074] In step S4, the preset distance ranges from 5 to 15 mm, and the preset distance may be 5 mm, 10 mm or 15 mm.

[0075] Those skilled in the art will readily appreciate other embodiments of the present application after considering the description and practicing the contents disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The description and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0076] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A tension detection device, characterized in that: include: Frame, drive assembly, pressure sensor, moving parts and measuring assembly; The first end of the driving assembly is slidably disposed on the frame along a first direction, the first direction being the radial direction of the rolled fiber filament, the second end of the driving assembly is connected to the moving member, and the driving assembly is used to drive the moving member to abut against the rolled fiber filament along the first direction; The pressure sensor is arranged on the moving member, and is used to detect the pressure between the moving member and the rolled fiber filament; The measuring component is used to measure the distance moved by the moving member along the first direction.

2. The tension detection device according to claim 1, characterized in that: The tension detection device also includes a fixing member, which is arranged on the frame. The fixing member and the moving member are symmetrically arranged about the central axis of the rolled fiber yarn, respectively. Along the first direction, the fixing member supports the rolled fiber yarn.

3. The tension detection device according to claim 2, characterized in that: The first direction is a horizontal direction, and the moving part and the fixing part are respectively located on two sides of the horizontal direction of the rolled fiber filament.

4. The tension detection device according to claim 1, characterized in that: The driving assembly includes a rack, a gear and a connecting frame; The rack is arranged on the frame, and the extending direction of the rack is the same as the first direction; The gear is arranged on one side of the connecting frame, and the gear is meshed with the rack; The other side of the connecting frame is connected to the moving member.

5. The tension detection device according to claim 4, characterized in that: The driving assembly further comprises a guide member and a sliding member. The guide member is arranged on the frame body, and the extending direction of the guide member is the same as the first direction. The sliding member is arranged on the connecting frame, and the sliding member slides along the guide member.

6. The tension detection device according to claim 5, characterized in that: The driving assembly further comprises a fastener, which is disposed on the sliding member and is used to lock the sliding member on the guide member.

7. The tension detection device according to claim 4, characterized in that: The driving assembly further includes a first limit block and a second limit block, wherein the first limit block and the second limit block are respectively located at two ends of the rack.

8. The tension detection device according to claim 2, characterized in that: The side of the movable member close to the coiled fiber filament is covered with a first protective layer, and / or the side of the fixed member close to the coiled fiber filament is covered with a second protective layer.

9. The tension detection device according to claim 2, characterized in that: The cross section of the moving member is arc-shaped, so that the side of the moving member close to the rolled fiber yarn is attached to the surface of the rolled fiber yarn, and / or, The cross section of the fixing piece is arc-shaped, so that the side of the fixing piece close to the rolled fiber yarn is attached to the surface of the rolled fiber yarn.

10. A method for using a tension detection device, characterized in that: Using the tension detection device as described in any one of claims 1 to 9 comprises the following steps: S1: positioning the moving part of the tension detection device on the radial side of the rolled fiber yarn; S2: the driving component of the tension detection device moves along the first direction to a position close to the central axis of the rolled fiber yarn, and the driving component drives the moving member to abut against the rolled fiber yarn; S3: when the value detected by the pressure sensor of the tension detection device is a preset pressure p, the measuring component of the tension detection device starts to measure the distance moved by the moving member; S4: When the measuring component measures that the moving distance of the moving member is a preset distance, the value detected by the pressure sensor is f, and the tension F=fp of the rolled fiber yarn is obtained.

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