A pay-off tensioner

Abstract

The utility model discloses a kind of unwinding tensioners, including bottom plate, further include: import roller, it is used to import fiber;Export roller, it is used to export fiber;Turntable, the import roller, export roller and turntable are rotationally arranged on bottom plate, the turntable is between import roller and export roller, the bottom plate rear side is fixedly provided with the drive element for driving turntable to rotate;Adjusting roller, it is rotationally arranged on turntable, the adjusting roller is evenly distributed with three in circumference;U-shaped ring groove, the import roller, export roller and adjusting roller are provided with U-shaped ring groove;Wherein, the outer surface of the import roller, export roller and adjusting roller is covered with silica gel coating, the stable regulation of fiber tension is realized, the surface coating of coated fiber is effectively protected simultaneously, avoid coating scratch, fall off, adapt the fine production demand of coated fiber;Three circumferentially evenly distributed adjusting rollers can make fiber stress more uniform, tension regulation range is wider, and adjustment precision is higher.

Description

Technical Field

[0001] This utility model belongs to the field of fiber production technology, and in particular relates to an unwinding tensioner. Background Technology

[0002] Coated fibers are composite fibers formed by coating functional coatings (such as waterproof, flame retardant, conductive, and corrosion resistant coatings) onto the surface of base fibers (polyester, nylon, aramid, etc.). They are widely used in aerospace, new energy, medical, textile and other fields. Their core characteristics are: thin coating thickness (usually 5-50μm), limited adhesion, and easy to peel off or break when scratched or squeezed by external forces.

[0003] In the production process of coated fibers, tension is controlled by a tensioner. Traditional tensioners use metal tension rollers that are in hard contact with the surface of the coated fibers. When adjusting the tension, the tension roller will change position. Since the coated fibers are linear, the fibers and tension rollers may sometimes slide relative to each other during the adjustment process, which can easily scratch the coating. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an unwinding tensioner, including a base plate, and further comprising: Inlet roller, used to introduce fibers; Export roller, which is used to export fibers; The turntable, including the inlet roller, outlet roller, and turntable, is rotatably mounted on the base plate. The turntable is located between the inlet roller and the outlet roller. A drive element for driving the turntable to rotate is fixedly mounted on the rear side of the base plate. An adjusting roller is rotatably mounted on a turntable, and three adjusting rollers are evenly distributed circumferentially. U-shaped annular grooves are provided on the inlet roller, outlet roller, and adjusting roller; The outer surfaces of the inlet roller, outlet roller, and adjustment roller are all covered with a silicone coating layer.

[0005] Furthermore, it also includes: Rotating columns, with multiple rotating columns rotatably connected to both the base plate and the turntable; The inlet roller, outlet roller, and adjusting roller are all detachably connected to the rotating column by screws.

[0006] Furthermore, it also includes: A positioning ring is fixedly installed at the front end of the rotating column; The positioning groove is provided at one end of the inlet roller, outlet roller and adjusting roller, and is matched with the positioning ring.

[0007] Furthermore, it also includes: The guide roller, the outlet roller and the adjusting roller are all fixedly provided with a blocking block at one end, and the blocking block is located in the positioning groove. The positioning ring has a slot that matches the card block.

[0008] Furthermore, it also includes: The tension detection roller assembly is fixedly mounted on the base plate.

[0009] Furthermore, the tension detection roller group is located between the adjusting roller and the output roller.

[0010] Furthermore, the driving element is a motor.

[0011] The beneficial effects of this utility model are as follows: 1. It achieves stable adjustment of fiber tension while effectively protecting the surface coating of the coated fiber, preventing the coating from being scratched or peeling off, and adapting to the fine production needs of coated fibers; the three circumferentially evenly distributed adjustment rollers can make the fiber more uniformly stressed, with a wider tension adjustment range and higher adjustment accuracy.

[0012] 2. The roller body and the rotating column are detachably connected. When the roller body is worn or aged (such as when the silicone coating is damaged) or needs to be replaced according to different fiber specifications, the roller body can be removed by simply unscrewing the screws. This makes the operation convenient and reduces maintenance costs and downtime.

[0013] 3. The positioning ring and positioning groove work together to position the roller body, ensuring that the roller body is coaxial with the rotating column after installation, avoiding eccentric wobbling when the roller body rotates, thus ensuring the stability of fiber transmission and the accuracy of tension adjustment; at the same time, it can reduce the force on the screws and prevent the screws from loosening due to the wobbling of the roller body.

[0014] 4. The combination of the locking block and the locking groove can prevent relative rotation between the roller and the rotating column, ensuring that the roller rotates synchronously with the fiber transmission, avoiding additional friction between the fiber and the roller due to sliding between the roller and the rotating column, and further protecting the fiber coating; at the same time, it can improve the stability of the roller rotation and avoid circumferential shaking.

[0015] 5. It can monitor the fiber tension value in real time, providing data support for the adjustment of the drive element, making it easy for operators to adjust the speed of the drive element according to the actual tension, so as to achieve precise tension control; at the same time, it can detect tension abnormalities in time, avoiding fiber breakage or coating damage due to excessive or insufficient tension.

[0016] 6. It avoids the adjustment lag problem caused by the tension detection position being too far forward. The external control system can quickly adjust the speed of the drive element based on the real-time tension signal fed back by the tension detection roller group, and then adjust the position of the adjustment roller to realize closed-loop control of tension, thereby improving the response speed and accuracy of tension adjustment. Attached Figure Description

[0017] Appendix Figure 1 This is a structural diagram of the present invention; Appendix Figure 2 This is a construction diagram of a rotating column; Appendix Figure 3 This is a structural diagram of the inlet roller; Explanation of reference numerals in the attached drawings: 1. Base plate, 2. Inlet roller, 3. Outlet roller, 4. Turntable, 5. Drive element, 6. Adjusting roller, 7. U-shaped ring groove, 8. Rotating column, 9. Positioning ring, 10. Positioning groove, 11. Locking block, 12. Locking groove, 13. Tension detection roller group. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In the description of this application, it should be noted that the terminology used herein is only for describing specific implementations and is not intended to limit the exemplary implementations according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings indicate similar items, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings. Example 1

[0019] This embodiment provides an unwinding tensioner, including a base plate 1, and further comprising: Inlet roller 2, which is used to introduce fibers; Export roller 3, which is used to export fibers; Turntable 4, the inlet roller 2, the outlet roller 3 and the turntable 4 are all rotatably mounted on the base plate 1, the turntable 4 is located between the inlet roller 2 and the outlet roller 3, and a drive element 5 for driving the turntable 4 to rotate is fixedly mounted on the rear side of the base plate 1. Adjusting roller 6 is rotatably mounted on turntable 4, and three adjusting rollers 6 are evenly distributed around the circumference; U-shaped annular groove 7 is provided on the inlet roller 2, outlet roller 3 and adjusting roller 6; The outer surfaces of the inlet roller 2, outlet roller 3, and adjustment roller 6 are all covered with a silicone coating layer.

[0020] In this technical solution, during the fiber production process, the coated fiber to be processed is introduced by the inlet roller 2, then sequentially passes around the three adjusting rollers 6 on the turntable 4, and is then exported to the subsequent production process by the outlet roller 3. The drive element 5 is connected to an external controller and can be a motor or a swing cylinder, etc., used to drive the turntable 4 to rotate. It can drive the turntable 4 to rotate around its central axis. When the turntable 4 rotates, it will drive the three adjusting rollers 6 to make synchronous circular motion, thereby changing the winding angle and path length of the fiber on the three adjusting rollers 6, and realizing the adjustment of fiber tension. The U-shaped annular groove 7 can limit the fiber and prevent the fiber from deviating during the transmission process. The silicone coating layer is made of wear-resistant silicone with a Shore hardness of 50-70 degrees, which can avoid hard contact between the roller body and the surface of the coated fiber and reduce friction damage.

[0021] This structural design enables stable adjustment of fiber tension while effectively protecting the surface coating of the coated fiber, preventing scratches and peeling, and meeting the precision production requirements of coated fibers. The three circumferentially distributed adjustment rollers 6 make the fiber more uniformly stressed, with a wider tension adjustment range and higher adjustment accuracy. Example 2

[0022] This embodiment provides an unwinding tensioner, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0023] Furthermore, it also includes: Rotating column 8, multiple rotating columns 8 are rotatably connected to the base plate 1 and the turntable 4; The inlet roller 2, outlet roller 3, and adjusting roller 6 are all detachably connected to the rotating column 8 by screws.

[0024] In this technical solution, one end of the rotating column 8 is rotatably connected to the base plate 1 or the turntable 4, and the end face of the rotating column 8 has an ear plate; one end of the inlet roller 2, the outlet roller 3 and the adjusting roller 6 are all provided with threaded holes, and the screws pass through the ear plates and cooperate with the threaded holes to fix the roller body on the rotating column 8; the roller body can rotate freely around the axis of the rotating column 8 to realize the transmission of fibers.

[0025] The inlet roller 2, outlet roller 3, and adjusting roller 6 are detachably connected to the rotating column 8. Different rollers can be replaced according to different fiber specifications. For example, if the fiber has a soft coating, a roller with a silicone coating layer with a lower Shore hardness can be used. If the fiber has a hard coating, a roller with a silicone coating layer with a higher Shore hardness can be used. If the fiber diameter is inconsistent, rollers with different sizes of U-shaped annular grooves 7 can also be replaced to adapt to different fiber specifications and achieve modular design.

[0026] This structural design enables a detachable connection between the roller and the rotating column 8. When the roller is worn, aged (such as when the silicone coating is damaged), or when the roller needs to be replaced according to different fiber specifications, the roller can be removed by simply unscrewing the screws. This makes the operation convenient and reduces maintenance costs and downtime. Example 3

[0027] This embodiment provides an unwinding tensioner, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0028] Furthermore, it also includes: The positioning ring 9 is fixedly installed at the front end of the rotating column 8; Positioning groove 10: One end of the inlet roller 2, outlet roller 3 and adjusting roller 6 is provided with a positioning groove 10 that matches the positioning ring 9.

[0029] In this technical solution, the positioning ring 9 is an annular protrusion structure; the positioning groove 10 is an annular groove opened at the end of the roller body, and its inner diameter matches the outer diameter of the positioning ring 9; when installing the roller body, the positioning groove 10 at the end of the roller body is aligned with the positioning ring 9 on the rotating column 8, so that the positioning ring 9 is embedded in the positioning groove 10, and then fixed by screws.

[0030] Through this structural design, the positioning ring 9 and the positioning groove 10 can be used to position the roller body, ensuring that the roller body is coaxial with the rotating column 8 after installation, avoiding eccentric swaying when the roller body rotates, thereby ensuring the stability of fiber transmission and the accuracy of tension adjustment; at the same time, it can reduce the force on the screws and prevent the screws from loosening due to the swaying of the roller body. Example 4

[0031] This embodiment provides an unwinding tensioner, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0032] Furthermore, it also includes: The guide roller 2, the outlet roller 3 and the adjusting roller 6 are all fixedly provided with a locking block 11, which is located in the positioning groove 10. The positioning ring 9 has a slot 12 that matches the card block 11.

[0033] In this technical solution, the locking block 11 is a cuboid protrusion structure that is fixed on the inner wall of the positioning groove 10; the locking groove 12 is a groove opened on the end face of the positioning ring 9, and its shape and size are completely matched with the locking block 11; when installing the roller, the positioning ring 9 is embedded in the positioning groove 10, and the locking block 11 will be inserted into the locking groove 12 to form circumferential positioning.

[0034] Through this structural design, the cooperation between the locking block 11 and the locking groove 12 can prevent relative rotation between the roller body and the rotating column 8, ensuring that the roller body rotates synchronously with the fiber transmission, avoiding additional friction between the fiber and the roller body due to the sliding between the roller body and the rotating column 8, and further protecting the fiber coating; at the same time, it can improve the stability of the roller body rotation and avoid circumferential shaking. Example 5

[0035] This embodiment provides an unwinding tensioner, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0036] Furthermore, it also includes: Tension detection roller group 13 is fixedly mounted on base plate 1.

[0037] In this technical solution, the tension detection roller group 13 includes a mounting plate and three detection rollers. The detection rollers can detect the tension of the fiber (the detection method is existing technology and will not be described in detail here). They can detect the fiber pressure on the detection rollers in real time and convert the pressure signal into a tension signal and transmit it to the external control system. Based on the different tensions, the drive element 5 adjusts the turntable 4. When the turntable 4 rotates, it changes the winding angle and path length of the fiber on the three adjustment rollers 6, thereby realizing the adjustment of fiber tension. This structural design allows for real-time monitoring of fiber tension, providing data support for adjusting the drive element 5. This facilitates operators in adjusting the rotation speed of the drive element 5 according to the actual tension, achieving precise tension control. Simultaneously, it enables timely detection of tension abnormalities, preventing fiber breakage or coating damage due to excessive or insufficient tension. Example 6

[0038] This embodiment provides an unwinding tensioner, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0039] Furthermore, the tension detection roller group 13 is located between the adjusting roller 6 and the output roller 3.

[0040] In this technical solution, after the fiber tension is adjusted by the adjusting roller 6, it first passes through the detection roller of the tension detection roller group 13 and then is transmitted to the output roller 3. The tension detection roller group 13 is located between the adjusting roller 6 and the output roller 3, and can directly detect the actual tension of the adjusted fiber to ensure the accuracy and timeliness of the detection results.

[0041] Since the detection roller of the tension detection roller group 13 is cylindrical and cannot be fitted with a retaining ring, it will affect the detection value. The tension detection roller group 13 is set between the adjusting roller 6 and the output roller 3, so that the fiber before and after the tension detection roller group 13 can pass through the U-shaped annular groove 7 of the adjusting roller 6 and the output roller 3, thus avoiding the relative slippage of the fiber on the detection roller.

[0042] This structural design avoids the adjustment lag problem caused by the forward tension detection position. The external control system can quickly adjust the speed of the drive element 5 based on the real-time tension signal fed back by the tension detection roller group 13, and then adjust the position of the adjustment roller 6 to achieve closed-loop control of tension and improve the response speed and accuracy of tension adjustment. Example 7

[0043] This embodiment provides an unwinding tensioner, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0044] Furthermore, the driving element 5 is a motor.

[0045] In this technical solution, the driving element 5 is a servo motor. The servo motor is detachably fixed to the rear side of the base plate 1 through a mounting bracket. The output shaft of the servo motor is connected to the central rotating shaft of the turntable 4 through a reducer. The servo motor is electrically connected to an external control system and can precisely adjust the output speed and direction according to the tension signal fed back by the tension detection roller group 13, thereby driving the turntable 4 to rotate.

[0046] Through this structural design, the servo motor has the advantages of precise speed adjustment, fast response speed, and stable operation. It can achieve stepless adjustment of the turntable speed, thereby realizing fine adjustment of fiber tension. At the same time, the detachable installation design of the servo motor facilitates the maintenance and replacement of the motor.

[0047] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features described in this application specification can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An unwinding tensioner, comprising a base plate (1), characterized in that, Also includes: Introducing roller (2), which is used to introduce fibers; Export roller (3), which is used to export fibers; The turntable (4), the inlet roller (2), the outlet roller (3) and the turntable (4) are all rotatably mounted on the base plate (1). The turntable (4) is located between the inlet roller (2) and the outlet roller (3). A drive element (5) for driving the turntable (4) to rotate is fixedly mounted on the rear side of the base plate (1). Adjusting roller (6), which is rotatably mounted on turntable (4), and three adjusting rollers (6) are evenly distributed circumferentially; U-shaped annular groove (7) is provided on the inlet roller (2), outlet roller (3) and adjusting roller (6); The outer surfaces of the inlet roller (2), outlet roller (3) and adjustment roller (6) are all covered with a silicone coating layer.

2. The unwinding tensioner according to claim 1, characterized in that, Also includes: Rotating column (8), multiple rotating columns (8) are rotatably connected to the base plate (1) and the turntable (4); The inlet roller (2), outlet roller (3) and adjusting roller (6) are all detachably connected to the rotating column (8) by screws.

3. The unwinding tensioner according to claim 2, characterized in that, Also includes: The positioning ring (9) is fixedly installed at the front end of the rotating column (8); Positioning groove (10): One end of the inlet roller (2), outlet roller (3) and adjusting roller (6) is provided with a positioning groove (10) that matches the positioning ring (9).

4. The unwinding tensioner according to claim 3, characterized in that, Also includes: A locking block (11) is fixedly provided at one end of the inlet roller (2), the outlet roller (3) and the adjusting roller (6), and the locking block (11) is located in the positioning groove (10); The positioning ring (9) has a slot (12) that matches the card block (11).

5. The unwinding tensioner according to claim 4, characterized in that, Also includes: Tension detection roller group (13) is fixedly installed on base plate (1).

6. The unwinding tensioner according to claim 5, characterized in that: The tension detection roller group (13) is located between the adjustment roller (6) and the output roller (3).

7. The unwinding tensioner according to claim 6, characterized in that: The driving element (5) is a motor.

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