A paper tube rolling tension detection device

Abstract

The utility model provides a kind of paper tube rolling tension detection device, it is related to paper product processing technical field, specifically including rack body, two mounting plates are inlaid in the top of rack body, multiple base rollers are provided on rack body, bottom position roller and two waist position rollers are provided between two mounting plates, bottom position roller, two waist position rollers and multiple base rollers are all made of roller body and bearing, and roller body and bearing are rotatably connected.The application can monitor the slight deformation of roller due to paper tube rolling tension in real time by setting fiber grating sensor in the bearing of bottom position roller and waist position roller, indirectly reflect tension change;While matching laser doppler tension sensor on first sliding block, directly detect tension value in paper tube operation.Two kinds of sensors work cooperatively, capture tension information from different dimensions, effectively reduce the error of single detection mode, improve overall detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of paper product processing technology, specifically a paper tube winding tension detection device. Background Technology

[0002] In paper tube winding production, tension stability is a core factor determining paper tube quality. From a practical production perspective, insufficient tension prevents the paper layers from forming a tight physical bond, easily leading to surface defects such as wrinkles and bulges during winding. In severe cases, it can even cause the tube to collapse, directly affecting the appearance and structural integrity of the paper tube. Excessive tension, on the other hand, is equally harmful. It not only causes excessive stretching of the paper fibers, resulting in uneven thickness and reduced surface gloss, but it can also cause paper breakage, leading to frequent production line downtime and increased raw material waste and production costs. Furthermore, excessive tension can create uneven stress distribution inside the paper tube. This internal stress can easily cause the paper tube to crack during subsequent storage or use, significantly reducing the product's lifespan and application safety.

[0003] Chinese Patent Announcement No. CN221026673U provides a paper tape tension control mechanism for paper tube manufacturing equipment, including a frame with two sliders slidably connected to the frame. The two sliders are vertically arranged and each slider is rotatably equipped with a roller. The frame is rotatably equipped with a pulley, and a transmission belt passes around the pulley. The two sliders are respectively connected to the two ends of the transmission belt. When the two sliders move closer or further apart, they drive the pulley to rotate through the transmission belt. The pulley or the transmission belt drives an encoder.

[0004] In existing technologies, the paper tape tension control mechanism used in paper tube manufacturing equipment relies solely on a single detection link consisting of a drive belt, pulleys, and encoder. This link can only capture tension information related to slider displacement and cannot verify or supplement tension data from other perspectives. If any component in this link (such as drive belt slippage or pulley wear) malfunctions, it directly affects the reliability of the detection results. Therefore, we propose an improvement: a paper tube winding tension detection device. Utility Model Content

[0005] The purpose of this invention is to address the problem that current paper tape tension control mechanisms used in paper tube manufacturing equipment have weak detection stability and anti-interference capabilities when faced with changes in paper tape material and speed in complex paper tube manufacturing environments.

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

[0007] A paper tube winding tension detection device, through the coordinated operation of two sensors, can mutually verify and compensate for the deficiencies of a single detection method, reducing the risk of errors caused by the failure of a single component or detection blind spot, thereby improving the above-mentioned problems.

[0008] The application is as follows:

[0009] A paper tube winding tension detection device includes a frame body. Two mounting plates are embedded in the top of the frame body. Multiple base rollers are mounted on the frame body. A bottom roller and two waist rollers are positioned between the two mounting plates. Each of the bottom roller, waist rollers, and base rollers consists of a roller body and bearings, with the roller body and bearings rotatably connected. The bearings on the multiple base rollers are inserted into and rotatably connected to the frame body. Multiple fiber optic grating sensors are installed inside the bearings on the bottom roller and the two waist rollers. The two mounting plates... Inside the bottom roller, on both sides corresponding to the bottom roller, there are two first sliders. The two first sliders are slidably connected to the two mounting plates respectively. The bearing inside the bottom roller is inserted into the two first sliders and rotatably connected to them. A laser Doppler tension sensor is fixedly installed on the top of the two first sliders. An airbag is embedded in the two first sliders on the outside of the bearing. A first servo motor is fixedly installed inside one of the mounting plates. A first threaded rod is fixedly installed at the output end of the first servo motor and passes through one of the first sliders and is threadedly connected to it.

[0010] As a preferred technical solution of this application, the first threaded rod is rotatably connected to the frame body, and a first guide rod is fixedly installed inside the other mounting plate. The first guide rod passes through the other first slider and is slidably connected to it. Temperature compensation gratings are embedded on the side of the two first sliders that are close to each other.

[0011] As a preferred technical solution of this application, laser Doppler tension sensors are fixedly installed on the top of the two first sliders and above the bottom roller, and the two laser Doppler tension sensors pass through one side of the mounting plate and are slidably connected to it.

[0012] As a preferred technical solution of this application, each of the two waist rollers is provided with an adjustment structure. The adjustment structure includes two second sliders, which are respectively inserted into the interior of two mounting plates and slidably connected thereto. The bearing inside the waist roller is inserted into the interior of the two second sliders and rotatably connected thereto. A second servo motor is fixedly installed inside one of the mounting plates, and a second threaded rod is fixedly installed at the output end of the second servo motor. The second threaded rod passes through one of the second sliders and is threadedly connected thereto. A second guide rod is fixedly installed inside the other mounting plate, and the second guide rod passes through the other second slider and is slidably connected thereto.

[0013] As a preferred technical solution of this application, an air supply pipe is fixedly installed inside the two first sliders and on the outside of the two airbags, and a pump is fixedly installed inside the two first sliders. The air supply pipe is connected to the airbag and the pump. A conical dustproof head is fixedly installed on the side port of the two pumps that are far apart from each other.

[0014] As a preferred technical solution of this application, pressure sensors are embedded on one side of the bottom roller and the two waist rollers. A silicone layer is provided on the outer side of the bottom roller, the two waist rollers and the multiple base rollers. A through groove that cooperates with the pressure sensor is opened on the silicone layer that is fixedly connected to the bottom roller and the two waist rollers. A controller is embedded on one side of the frame body. The controller is electrically connected to multiple fiber optic grating sensors, a temperature compensation grating, a first servo motor, a second servo motor and pressure sensors.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In the scheme of this application:

[0017] (1) By installing fiber optic grating sensors in the bearings of the bottom and waist rollers, the minute deformation of the rollers caused by the paper tube winding tension can be monitored in real time, indirectly reflecting the tension change; at the same time, in conjunction with the laser Doppler tension sensor on the first slider, the tension value during paper tube operation can be directly detected. The two sensors work together to capture tension information from different dimensions, effectively reducing the error of a single detection method and improving the overall detection accuracy;

[0018] (2) The bottom roller is slidably connected to the mounting plate via the first slider. The first threaded rod is driven by the first servo motor, which can precisely adjust the position of the bottom roller, thereby changing the contact angle and pressure between the paper tube and each roller. At the same time, the pressure of the roller on the paper tube can be finely adjusted by the airbag on the first slider through inflation / deflation, so as to adapt to the winding tension requirements of paper tubes of different materials and thicknesses, and enhance the versatility and flexibility of the device. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a frontal cross-sectional view of the present invention.

[0021] Figure 3 This is a partial structural diagram of the present invention;

[0022] Figure 4 This is a side view sectional structural diagram of the present invention;

[0023] Figure 5 This utility model Figure 3 Enlarged view of point A in the middle.

[0024] Explanation of reference numerals in the accompanying drawings: 1. Frame body; 2. Mounting plate; 3. Base roller; 4. Waist roller; 5. Bottom roller; 6. Bearing; 7. Fiber optic grating sensor; 8. First slider; 9. Second slider; 10. Temperature compensation grating; 11. First servo motor; 12. First threaded rod; 13. First guide rod; 14. Laser Doppler tension sensor; 15. Second servo motor; 16. Second threaded rod; 17. Second guide rod; 18. Airbag; 19. Air supply pipe; 20. Pump; 21. Conical dustproof head; 22. Controller. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] Example 1: Please refer to the appendix of the instruction manual. Figure 1-4. A paper tube winding tension detection device includes a frame body 1. Two mounting plates 2 are embedded in the top of the frame body 1. Multiple base rollers 3 are mounted on the frame body 1. A bottom roller 5 and two waist rollers 4 are positioned between the two mounting plates 2. The bottom roller 5, the two waist rollers 4, and the multiple base rollers 3 are all composed of roller bodies and bearings 6, and the roller bodies and bearings 6 are rotatably connected. The bearings 6 mounted on the multiple base rollers 3 are all inserted into and rotatably connected to the frame body 1. Multiple fiber optic grating sensors 7 are installed inside the bearings 6 mounted on the bottom roller 5 and the two waist rollers 4. The two mounting plates 2... Inside the bottom roller 5, on both sides, there are two first sliders 8. The two first sliders 8 are slidably connected to the two mounting plates 2 respectively. The bearings 6 inside the bottom roller 5 are inserted into the two first sliders 8 and rotatedly connected to them. The top of the two first sliders 8 is fixedly installed with laser Doppler tension sensors 14. The two first sliders 8 and the outer side of the bearings 6 are inlaid with airbags 18. The first servo motor 11 is fixedly installed inside one of the mounting plates 2. The output end of the first servo motor 11 is fixedly installed with a first threaded rod 12, and the first threaded rod 12 passes through one of the first sliders 8 and is threadedly connected to it.

[0032] In this embodiment of the invention, the frame body 1 serves as the supporting structure for the entire device, and two mounting plates 2 embedded at the top are used to install other key components. The base roller 3, bottom roller 5, and waist roller 4 are all composed of a roller body and bearings 6 rotatably connected to it. The bearings 6 on the base roller 3 are inserted into the frame body 1 and rotatably connected, providing initial support and guidance for the paper. The bearings 6 inside the bottom roller 5 are inserted into two first sliders 8 and rotatably connected, and the first sliders 8 are slidably connected to the mounting plates 2.

[0033] When the paper moves on the bottom roller 5, if the paper tension changes, it will cause the bottom roller 5 to move to a certain displacement, which in turn causes the first slider 8 to slide within the mounting plate 2. After the first servo motor 11 inside one of the mounting plates 2 is started, the first threaded rod 12 at its output end rotates. Since the first threaded rod 12 is threadedly connected to one of the first sliders 8, it will drive the first slider 8 to move. The other first slider 8 slides synchronously under the guidance of the first guide rod 13, thereby achieving precise adjustment of the position of the bottom roller 5 to adapt to different paper tensions. At the same time, the laser Doppler tension sensor 14 fixedly installed on the top of the first slider 8 can detect the tension of the paper at the bottom roller 5 in real time and transmit the detection signal to the subsequent control unit. Multiple fiber optic grating sensors 7 are installed inside the bearings 6 set on the bottom roller 5 and the two waist rollers 4. These sensors can accurately sense the subtle strain changes of the bearings 6 caused by the force. As the paper moves on the rollers, the paper tension causes the rollers to rotate, and the bearing 6 deforms under the force. The fiber optic grating sensor 7 can capture the strain caused by this deformation and convert it into a change in light signal output, providing additional data support for subsequent determination of the tension of the paper at different roller positions.

[0034] In this embodiment of the invention, the above-described structural design enables active adjustment of the position of the bottom roller 5 and real-time detection of paper tension. On one hand, it allows for timely adjustment of the position of the bottom roller 5 based on changes in paper tension, ensuring the paper remains under appropriate tension during the winding process. This effectively prevents paper tearing due to excessive tension or loose winding due to insufficient tension, thus improving the winding quality of the paper tube. On the other hand, the application of the laser Doppler tension sensor 14, with its high precision and high response speed, enables rapid and accurate detection of paper tension, providing reliable data support for subsequent tension adjustment. The addition of the fiber optic grating sensor 7 broadens the dimensions of tension detection, allowing for auxiliary judgment of paper tension from the perspective of roller bearing strain. The mutual verification of multiple detection methods further enhances the accuracy and reliability of tension detection, helping to more comprehensively understand the stress state of the paper during the winding process and providing a richer data foundation for optimizing the winding process.

[0035] Example 2: Please refer to the appendix of the instruction manual. Figure 1 -5. As a preferred embodiment of the present invention, the first threaded rod 12 is rotatably connected to the frame body 1, and the first guide rod 13 is fixedly installed inside the other mounting plate 2. The first guide rod 13 passes through the other first slider 8 and is slidably connected to it. Temperature compensation gratings 10 are embedded on the side of the two first sliders 8 that are close to each other.

[0036] Laser Doppler tension sensors 14 are fixedly installed on the top of the two first sliders 8 and above the bottom roller 5, and both laser Doppler tension sensors 14 pass through one side of the mounting plate 2 and are slidably connected to it.

[0037] Both waist rollers 4 are equipped with adjustment structures, each including two second sliders 9. The two second sliders 9 are inserted into the interiors of the two mounting plates 2 and slidably connected thereto. The bearings 6 inside the waist rollers 4 are inserted into the interiors of the two second sliders 9 and rotatably connected thereto. A second servo motor 15 is fixedly installed inside one of the mounting plates 2. A second threaded rod 16 is fixedly installed at the output end of the second servo motor 15. The second threaded rod 16 passes through one of the second sliders 9 and is threadedly connected thereto. A second guide rod 17 is fixedly installed inside the other mounting plate 2 and passes through the other second slider 9 and is slidably connected thereto.

[0038] An air supply pipe 19 is fixedly installed inside the two first sliders 8 and outside the two airbags 18. A pump 20 is fixedly installed inside the two first sliders 8. The air supply pipe 19 is connected to the airbags 18 and the pump 20. A conical dustproof head 21 is fixedly installed on the side port of the two pumps 20 that is far apart from each other.

[0039] Pressure sensors are embedded on one side of the bottom roller 5 and the two waist rollers 4. A silicone layer is provided on the outer side of the bottom roller 5, the two waist rollers 4 and the multiple base rollers 3. A through groove is opened on the silicone layer that is fixedly connected to the bottom roller 5 and the two waist rollers 4 to cooperate with the pressure sensor. A controller 22 is embedded on one side of the frame body 1. The controller 22 is electrically connected to multiple fiber optic grating sensors 7, temperature compensation grating 10, first servo motor 11, second servo motor 15 and pressure sensors.

[0040] In this embodiment of the invention, the first threaded rod 12 is rotatably connected to the frame body 1, ensuring stable rotation under the drive of the first servo motor 11. A first guide rod 13, fixedly installed inside another mounting plate 2, passes through and slidably connects to another first slider 8. When the first threaded rod 12 drives one of the first sliders 8 to move, the first guide rod 13 acts as a guide, enabling the two first sliders 8 to move smoothly and synchronously, ensuring the position adjustment accuracy of the bottom roller 5. A temperature compensation grating 10 is embedded on one side of the two first sliders 8, primarily used to compensate for the influence of ambient temperature changes on tension detection accuracy. Because in the actual paper tube winding environment, temperature fluctuations may cause changes in the physical properties of the sensor and related components, thus affecting the accuracy of tension detection. The temperature compensation grating 10 monitors the ambient temperature in real time; when the temperature changes, its output signal changes accordingly. By comprehensively processing the detection signal from the laser Doppler tension sensor 14, the interference of temperature factors on the tension detection results can be eliminated, making the detection results more accurate and reliable.

[0041] During the paper rolling process, the tension of the paper at the bottom roller 5 causes slight deformation and positional changes in the bottom roller 5. This change is transmitted to the first slider 8, thus affecting the relative positional relationship between the laser Doppler tension sensor 14 and the paper. The laser Doppler tension sensor 14 utilizes the laser Doppler effect to accurately measure the paper tension by detecting changes in the frequency of reflected light. Because two sensors are used, the tension of the paper at the bottom roller 5 can be detected from different angles, obtaining more comprehensive tension information and improving the reliability of the detection results to a certain extent. When the paper tension changes, both laser Doppler tension sensors 14 simultaneously detect the change and transmit their respective detection signals to the subsequent signal processing and control unit.

[0042] Both waist rollers 4 are equipped with adjustment structures, which include two second sliders 9. The second sliders 9 are inserted into and slidably connected to the two mounting plates 2 respectively. The bearings 6 inside the waist rollers 4 are inserted into and rotatably connected to the second sliders 9. After the second servo motor 15 inside one of the mounting plates 2 is started, the second threaded rod 16 at its output end rotates and is threadedly connected to one of the second sliders 9, thereby driving the second slider 9 to move. The other second slider 9 slides synchronously under the guidance of the second guide rod 17. When the paper moves on the waist rollers 4, if the paper tension changes, the operator can start the second servo motor 15 according to the actual situation and adjust the position of the second slider 9 by adjusting the rotation of the second threaded rod 16, thereby changing the position of the waist rollers 4. The change in the position of the waist rollers 4 will affect the tension distribution of the paper in that part. Together with the bottom rollers 5 and the base rollers 3, the overall tension of the paper can be precisely adjusted.

[0043] Air supply pipes 19 are fixedly installed inside the two first sliders 8 and outside the two air bladders 18. The pump 20 inside the first slider 8 is connected to the air bladder 18 through the air supply pipes 19. When it is necessary to adjust the paper tension at the bottom roller 5, the pump 20 is started, and the pump 20 delivers gas to the air bladder 18 through the air supply pipes 19, causing the air bladder 18 to inflate. After the air bladder 18 inflates, it will exert a certain pressure on the bearing 6 inside the bottom roller 5, thereby changing the friction between the bottom roller 5 and the paper. When the paper tension is too high, the pressure of the air bladder 18 can be appropriately increased to increase the friction between the bottom roller 5 and the paper, consume some of the paper tension, and reduce the paper tension to a suitable range; when the paper tension is too low, the pressure of the air bladder 18 is reduced to reduce the friction, allowing the paper to pass through the bottom roller 5 more smoothly and increasing the paper tension. The two pumps 20 are fixedly installed with conical dustproof heads 21 on one side of each other, which can effectively prevent external dust and other impurities from entering the pump 20 and affecting the normal operation of the pump 20.

[0044] Pressure sensors are embedded on one side of the bottom roller 5 and the two waist rollers 4. When paper moves on these rollers, the pressure exerted by the paper on the rollers acts on the pressure sensors, which convert the pressure signal into an electrical signal output. A silicone layer is provided on the outer side of the bottom roller 5, waist rollers 4, and base roller 3. The silicone layer has a certain elasticity and friction, allowing for better contact with the paper, ensuring stable paper transport on the rollers, and reducing damage to the paper surface. Through slots are formed on the silicone layers of the bottom roller 5 and waist rollers 4 to cooperate with the pressure sensors, ensuring that the pressure sensors can accurately detect the pressure of the paper on the rollers. A controller 22 embedded on one side of the frame body 1 is electrically connected to multiple fiber optic grating sensors 7, a temperature compensation grating 10, a first servo motor 11, a second servo motor 15, and the pressure sensors. The controller 22 receives detection signals from each sensor and performs comprehensive analysis and processing of these signals. For example, based on the paper tension signal detected by the laser Doppler tension sensor 14 and the pressure signal of the paper on the rollers detected by the pressure sensor, combined with the temperature compensation information of the temperature compensation grating 10, the controller 22 calculates the control commands to be issued to the first servo motor 11 and the second servo motor 15 through an internally preset control algorithm, so as to adjust the positions of the bottom roller 5 and the waist roller 4, thereby achieving precise control of the paper tension. At the same time, the controller 22 further analyzes the force distribution of the paper on the rollers based on the roller bearing strain data fed back by the fiber optic grating sensor 7, and optimizes the overall tension adjustment strategy. For example, when the fiber optic grating sensor 7 detects abnormal bearing strain in a certain part, the controller 22 can determine that the paper is under uneven force in that part, and then adjust the position of the bottom roller 5 or the waist roller 4 accordingly to make the paper under uniform force and achieve better tension control.

[0045] In this embodiment of the invention, the first guide rod 13 improves the stability and synchronization of the movement of the first slider 8, further ensuring the accuracy of the position adjustment of the bottom roller 5, and helping to control the paper tension more precisely. The application of the temperature compensation grating 10 significantly enhances the accuracy of tension detection under different ambient temperatures, enabling the device to adapt to a wider range of working environments, improving its versatility and reliability. Even in industrial production sites with large temperature variations, it can ensure accurate detection and control of paper tension, thereby ensuring that the quality of paper tube winding is not affected by ambient temperature fluctuations.

[0046] The dual-laser Doppler tension sensor 14 further improves the accuracy and reliability of paper tension detection. Detecting tension from different angles provides a more comprehensive reflection of the force exerted on the paper at the bottom roller 5, reducing errors or missed detections that might occur with a single sensor. Comprehensive analysis of the signals from both sensors allows for a more accurate determination of the actual paper tension, providing more precise data for subsequent tension adjustments. This helps to further improve the accuracy of paper tension control during paper tube winding, resulting in the production of higher-quality paper tube products.

[0047] The adjustment structure of the waist roller 4 provides greater freedom and flexibility in adjusting paper tension. During paper tube winding, different paper materials, winding processes, and paper tube specifications may require targeted adjustments to the tension of the paper at different locations. This adjustment structure allows for precise adjustment of the position of the waist roller 4 according to actual needs, changing the paper tension at the waist. Working in conjunction with the bottom roller 5 and the base roller 3, it achieves fine control over the overall paper tension, better meeting the requirements of various complex paper tube winding processes and improving the quality and consistency of paper tube products.

[0048] The auxiliary tension adjustment structure, consisting of the airbag 18 and the pump 20, provides a new means of regulating paper tension. By adjusting the pressure of the airbag 18, the friction between the bottom roller 5 and the paper is changed, enabling rapid and flexible adjustment of paper tension. As a supplement to the detection by the laser Doppler tension sensor 14 and the position adjustment of the bottom roller 5, it further improves the accuracy and effectiveness of paper tension control. The conical dustproof head 21 effectively protects the pump 20, extends its service life, ensures the long-term stable operation of the auxiliary tension adjustment structure, reduces production interruptions caused by equipment failure, and improves production efficiency.

[0049] The pressure sensor provides another reference for paper tension detection. Working in conjunction with the laser Doppler tension sensor 14, it enables a more comprehensive and accurate assessment of the paper's stress during the winding process, further improving the precision of paper tension detection and control. The application of the silicone layer not only protects the paper surface and reduces scratches and other defects, but also enhances the friction between the rollers and the paper, contributing to stable paper transmission and improving the stability of paper tube winding. The controller 22's comprehensive processing of various sensor signals and precise control of the motor enable automated operation of the entire paper tube winding tension detection device, significantly improving production efficiency and product quality consistency, reducing manual intervention, and minimizing the impact of labor intensity and human factors on product quality. The fiber optic grating sensor 7 provides the controller 22 with roller bearing strain data, enriching the controller 22's analysis of paper stress. This allows the controller 22 to formulate more scientific and precise tension adjustment strategies, further enhancing the device's control over paper tension, ensuring efficient and stable operation of the paper tube winding process, and producing paper tube products with superior quality and more stable performance.

[0050] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A paper tube winding tension detection device, comprising a frame body (1), characterized in that, Two mounting plates (2) are inlaid on the top of the frame body (1). Multiple base rollers (3) are provided on the frame body (1). A bottom roller (5) and two waist rollers (4) are provided between the two mounting plates (2). The bottom roller (5), the two waist rollers (4) and the multiple base rollers (3) are all composed of roller bodies and bearings (6), and the roller bodies and bearings (6) are rotatably connected. The bearings (6) provided on the multiple base rollers (3) are inserted into the frame body (1) and rotatably connected to it. Multiple fiber optic grating sensors (7) are provided inside the bearings (6) provided on the bottom roller (5) and the two waist rollers (4). The two mounting plates (2) are located inside the bottom roller. (5) is provided with a first slider (8) on both sides. The two first sliders (8) are slidably connected to the two mounting plates (2) respectively. The bearing (6) inside the bottom roller (5) is inserted into the two first sliders (8) and rotates with them. The top of the two first sliders (8) is fixedly installed with a laser Doppler tension sensor (14). The two first sliders (8) and the outer side of the bearing (6) are inlaid with airbags (18). The first servo motor (11) is fixedly installed inside one of the mounting plates (2). The output end of the first servo motor (11) is fixedly installed with a first threaded rod (12), and the first threaded rod (12) passes through one of the first sliders (8) and is threadedly connected to it.

2. The paper tube winding tension detection device according to claim 1, characterized in that, The first threaded rod (12) is rotatably connected to the frame body (1), and the first guide rod (13) is fixedly installed inside the other mounting plate (2). The first guide rod (13) passes through the other first slider (8) and is slidably connected to it. Temperature compensation gratings (10) are embedded on the side of the two first sliders (8) that are close to each other.

3. The paper tube winding tension detection device according to claim 1, characterized in that, Laser Doppler tension sensors (14) are fixedly installed on the top of the two first sliders (8) and above the bottom roller (5), and both laser Doppler tension sensors (14) pass through one side of the mounting plate (2) and are slidably connected to it.

4. The paper tube winding tension detection device according to claim 1, characterized in that, Both waist rollers (4) are provided with adjustment structures, each including two second sliders (9). The two second sliders (9) are inserted into the interior of the two mounting plates (2) and slidably connected thereto. The bearings (6) inside the waist rollers (4) are inserted into the interior of the two second sliders (9) and rotatably connected thereto. A second servo motor (15) is fixedly installed inside one of the mounting plates (2). A second threaded rod (16) is fixedly installed at the output end of the second servo motor (15). The second threaded rod (16) passes through one of the second sliders (9) and is threadedly connected thereto. A second guide rod (17) is fixedly installed inside the other mounting plate (2), and the second guide rod (17) passes through the other second slider (9) and is slidably connected thereto.

5. The paper tube winding tension detection device according to claim 1, characterized in that, An air supply pipe (19) is fixedly installed inside the two first sliders (8) and outside the two airbags (18). A pump (20) is fixedly installed inside the two first sliders (8). The air supply pipe (19) is connected to the airbag (18) and the pump (20). A conical dustproof head (21) is fixedly installed on the side port of the two pumps (20) that are far apart from each other.

6. The paper tube winding tension detection device according to claim 1, characterized in that, Pressure sensors are embedded on one side of the bottom roller (5) and the two waist rollers (4). A silicone layer is provided on the outer side of the bottom roller (5), the two waist rollers (4) and the multiple base rollers (3). A through groove is opened on the silicone layer that is fixedly connected to the bottom roller (5) and the two waist rollers (4) to cooperate with the pressure sensor. A controller (22) is embedded on one side of the frame body (1). The controller (22) is electrically connected to multiple fiber optic grating sensors (7), a temperature compensation grating (10), a first servo motor (11), a second servo motor (15) and the pressure sensor.

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