A fiber tow straightening device
By introducing a tension sensor and servo motor for dynamic adjustment in the fiber bundle straightening device, the problem of uneven tension in traditional devices is solved, achieving efficient straightening and stable positioning of the fiber bundle, thus improving molding quality and processing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SUNWISH CHEM FIBER CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional fiber bundle straightening devices lack a dynamic tension adjustment mechanism, which can lead to excessive tension causing bundle breakage or insufficient tension resulting in poor straightening effect, affecting molding quality and subsequent processing performance.
A fiber bundle straightening device, comprising a housing, limiting components, and adjusting components, is used. Dynamic tension adjustment is achieved through a tension sensor and a servo motor. Combined with the synchronous rotation of the lifting mechanism and the servo motor, the fiber bundle is straightened within a reasonable tension range.
It improves the straightening effect of fiber bundles, prevents positional displacement, and ensures molding quality and subsequent processing performance.
Smart Images

Figure CN224450953U_ABST
Abstract
Description
Technical Field
[0001] This utility model mainly relates to the field of chemical fiber production technology, specifically a fiber bundle straightening device. Background Technology
[0002] Chemical fibers are made from natural or synthetic polymers. Chemical fiber production involves chemical processing and physical treatment of natural or synthetic polymers. During chemical fiber production, the fiber bundles need to be straightened, thus requiring a fiber bundle straightening device.
[0003] In existing technologies, the straightening of fiber bundles generally relies on multi-roller drafting technology. The straightening of fiber bundles is achieved through the coordinated traction of multiple drafting rollers. However, traditional straightening devices use a fixed-position drafting roller design. When the fiber bundle passes through the drafting roller group, due to the lack of a dynamic tension adjustment mechanism, it is very easy for the fiber bundle to break and produce fuzz due to excessive tension, or for the straightening effect to be poor, resulting in wrinkles and loosening due to insufficient tension, which affects the forming quality of the fiber bundle and its subsequent processing performance. Utility Model Content
[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing solutions are too simplistic. It mainly provides a fiber bundle straightening device that lacks a dynamic tension adjustment mechanism, which affects the fiber bundle straightening effect, thereby solving the technical problems of traditional straightening devices mentioned in the background.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:
[0006] A fiber bundle straightening device includes a housing. Limiting components are installed on both sides of the housing. A first drafting roller, a second drafting roller, a third drafting roller, a fourth drafting roller, and a fifth drafting roller are rotatably connected from left to right at the front end of the housing. An adjusting component is installed at the front end of the inner wall of the housing. A sixth drafting roller is rotatably connected to the front end of the adjusting component. The sixth drafting roller is disposed between the fourth and fifth drafting rollers. Its height can be adjusted by cooperating with the adjusting component. The first, second, and third drafting rollers are distributed to the left of the fourth drafting roller, and the three drafting rollers are arranged in a triangular layout.
[0007] The adjustment assembly includes a frame installed on the inner wall of the housing. A geared motor is installed at the bottom of the frame. A ball screw is installed at the output end of the geared motor. An L-shaped plate is installed on the outer wall of the ball screw by means of a nut. A tension sensor is installed at the front end of the L-shaped plate.
[0008] More preferably, five servo motors are installed at the rear end of the inner wall of the housing, and the output ends of the five servo motors are respectively connected to the first drafting roller, the second drafting roller, the third drafting roller, the fourth drafting roller and the fifth drafting roller. A cover plate is installed at the rear end of the housing by screws, and rectangular holes are opened on both sides of the housing, and dustproof nets are installed in the rectangular holes.
[0009] More preferably, the limiting component includes a mounting block installed on the outer wall of the housing, and a support rod is installed at the front end of the mounting block.
[0010] More preferably, the top of the outer wall of the support rod has two circular grooves, and the top of each circular groove has a circular hole, and the bottom of the limiting rod has a screw.
[0011] In a further preferred embodiment, the sixth stretching roller is rotatably connected to the tension sensor, and the sixth stretching roller and the tension sensor form a lifting mechanism with the reduction motor via an L-shaped plate and a ball screw.
[0012] More preferably, the inner wall of the frame is equipped with two sliding rods, and the bottom of the L-shaped plate has two round holes, in which linear bearings are installed, and the sliding rods are slidably installed in the linear bearings.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This fiber bundle straightening device can sense the tension during fiber bundle straightening through an adjustment component. Then, based on the tension, it can be adjusted in conjunction with the sixth drafting roller to ensure that the fiber bundle is within a reasonable tension range during straightening, thereby improving the straightening effect.
[0015] 2. This fiber bundle straightening device, through a limiting component, can limit the fiber bundle during straightening, preventing the fiber bundle from shifting position during straightening and affecting the straightening effect.
[0016] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the rear view structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the limiting component structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the adjustment component structure of this utility model.
[0021] Numbering on the map:
[0022] 1. Housing; 2. Limiting assembly; 201. Mounting block; 202. Support rod; 203. Limiting rod; 3. First drafting roller; 4. Second drafting roller; 5. Third drafting roller; 6. Fourth drafting roller; 7. Fifth drafting roller; 8. Servo motor; 9. Adjusting assembly; 901. Frame; 902. Slide rod; 903. Gear motor; 904. Ball screw; 905. L-shaped plate; 906. Tension sensor; 907. Linear motor; 10. Sixth drafting roller. Detailed Implementation
[0023] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.
[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0025] Please refer to the appendix carefully. Figure 1-4 A fiber bundle straightening device includes a housing 1. Limiting components 2 are installed on both sides of the housing 1. A first drafting roller 3, a second drafting roller 4, a third drafting roller 5, a fourth drafting roller 6, and a fifth drafting roller 7 are rotatably connected from left to right at the front end of the housing 1. An adjusting component 9 is installed at the front end of the inner wall of the housing 1. A sixth drafting roller 10 is rotatably connected to the front end of the adjusting component 9. The sixth drafting roller 10 is located between the fourth drafting roller 6 and the fifth drafting roller 7. Its height can be adjusted by cooperating with the adjusting component 9. The first drafting roller 3, the second drafting roller 4, and the third drafting roller 5 are distributed to the left of the fourth drafting roller 6, and the three drafting rollers are arranged in a triangular layout.
[0026] The adjustment assembly 9 includes a frame 901 installed on the inner wall of the housing 1. A geared motor 903 is installed at the bottom of the frame 901. A ball screw 904 is installed at the output end of the geared motor 903. An L-shaped plate 905 is installed on the outer wall of the ball screw 904 by a nut. A tension sensor 906 is installed at the front end of the L-shaped plate 905.
[0027] In this embodiment, such as 1 and Figure 2As shown, five servo motors 8 are installed at the rear end of the inner wall of the housing 1, and the output ends of the five servo motors 8 are respectively connected to the first drafting roller 3, the second drafting roller 4, the third drafting roller 5, the fourth drafting roller 6, and the fifth drafting roller 7. A cover plate is installed at the rear end of the housing 1 by screws, and rectangular holes are opened on both sides of the housing 1, and dustproof nets are installed in the rectangular holes. The rectangular holes maintain the air circulation between the inside of the housing 1 and the outside, and the dustproof nets play a certain role in dust prevention. When the servo motors 8 are started, the speed is controlled by the frequency converter, which drives the first drafting roller 3, the second drafting roller 4, the third drafting roller 5, the fourth drafting roller 6, and the fifth drafting roller 7 to rotate synchronously. When straightening the fiber bundle, the fiber bundle can be moved by the first drafting roller 3, the second drafting roller 4, the third drafting roller 5, the fourth drafting roller 6, and the fifth drafting roller 7 to straighten the fiber bundle.
[0028] In this embodiment, as Figure 1 and Figure 3 As shown, the limiting component 2 includes a mounting block 201 installed on the outer wall of the housing 1, and a support rod 202 is installed at the front end of the mounting block 201; the support rods 202 of the two limiting components 2 can support and guide the fiber bundle, so as to avoid the fiber bundle from shifting position when it is straightened, thus affecting the straightening effect.
[0029] In this embodiment, as Figure 3 As shown, the top of the outer wall of the support rod 202 has two circular grooves, and the top of each groove has a circular hole. The bottom of the limiting rod 203 is provided with a screw. The limiting rod 203 is inserted into the circular groove on the support rod 202, and the screw at the bottom of the limiting rod 203 is inserted into the circular hole. Then, the spring washer and nut are installed with the screw, thereby installing the limiting rod 203 and the support rod 202. The two limiting rods 203 installed on the support rod 202 can limit the fiber bundle and prevent the fiber bundle from shifting forward or backward when it is straightened, which would affect the straightening effect.
[0030] In this embodiment, as Figure 1 and Figure 4 As shown, the sixth drafting roller 10 is rotatably connected to the tension sensor 906. The sixth drafting roller 10 and the tension sensor 906 form a lifting mechanism with the geared motor 903 via the L-shaped plate 905 and the ball screw 904. A moving hole is provided at the front end of the housing 1. The tension sensor 906 can sense the tension of the fiber bundle on the sixth drafting roller 10. The sensed data is displayed on the display on the housing 1. When adjustment is required, the geared motor 903 is started, and the L-shaped plate 905, the tension sensor 906 and the sixth drafting roller 10 can be moved up or down via the ball screw 904 for adjustment.
[0031] In this embodiment, as Figure 4As shown, two sliding rods 902 are installed on the inner wall of the frame 901, and two round holes are opened at the bottom of the L-shaped plate 905. A linear bearing 907 is installed in the round holes, and the sliding rods 902 are slidably installed in the linear bearings. When the L-shaped plate 905 is driven to move upward or downward, the L-shaped plate 905 slides on the two sliding rods 902 through the linear bearings 907. The linear bearings 907 avoid rigid contact between the L-shaped plate 905 and the sliding rods 902, which can improve the stability of the L-shaped plate 905, the tension sensor 906 and the sixth stretching roller 10 when they move upward or downward.
[0032] The specific operating procedure of this utility model is as follows: Insert the screws of the four limiting rods 203 into the corresponding round holes on the corresponding support rods 202. Then, install the washers and nuts onto the screws on the limiting rods 203, thereby installing the four limiting rods 203 onto the corresponding support rods 202. Next, pass the fiber bundle through the two limiting rods 203 of the left limiting assembly 2 on the housing 1. The support rods 202 support the fiber bundle. Then, the fiber bundle passes around and adheres to the bottom of the first drafting roller 3. Next, the fiber bundle passes upward and adheres to the top of the second drafting roller 4. Next, the fiber bundle passes downward and adheres to the bottom of the third drafting roller 5. Next, the fiber bundle is parallel to and adheres to the top of the fourth drafting roller 6. Next, the fiber bundle passes downward and adheres to the bottom of the sixth drafting roller 10. Next, the fiber bundle passes upward and adheres to the top of the fifth drafting roller 7. The fiber bundle passes through the two limiting rods 203 of the left limiting assembly 2 of the housing 1. The support rod 202 supports the fiber bundle. Then the fiber bundle is connected to the winding equipment. When the winding equipment is started to wind, the servo motor 8 is started to drive the first drafting roller 3, the second drafting roller 4, the third drafting roller 5, the fourth drafting roller 6 and the fifth drafting roller 7 to rotate synchronously to straighten the fiber bundle. The tension sensor 906 senses the tension of the fiber bundle on the sixth drafting roller 10. The sensed data is displayed on the display on the housing 1. When the tension is too high or too low, the straightening work stops, the reduction motor 903 is started, and the ball screw 904 drives the L-shaped plate 905, the tension sensor 906 and the sixth drafting roller 10 to move up or down. According to the tension data displayed on the display, the sixth drafting roller 10 is adjusted to a suitable position, and then the reduction motor 903 is turned off.
[0033] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.
Claims
1. A fiber tow straightening device comprising a housing (1), characterized in that: Limiting components (2) are installed on both sides of the housing (1). The front end of the housing (1) is rotatably connected from left to right with a first drawing roller (3), a second drawing roller (4), a third drawing roller (5), a fourth drawing roller (6), and a fifth drawing roller (7). An adjusting component (9) is installed on the front end of the inner wall of the housing (1). The front end of the adjusting component (9) is rotatably connected with a sixth drawing roller (10). The sixth drawing roller (10) is located between the fourth drawing roller (6) and the fifth drawing roller (7). Its height can be adjusted by cooperating with the adjusting component (9). The first drawing roller (3), the second drawing roller (4), and the third drawing roller (5) are distributed on the left side of the fourth drawing roller (6), and these three drawing rollers are arranged in a triangular layout. The adjustment assembly (9) includes a frame (901) installed on the inner wall of the housing (1). A geared motor (903) is installed at the bottom of the frame (901). A ball screw (904) is installed at the output end of the geared motor (903). An L-shaped plate (905) is installed on the outer wall of the ball screw (904) by means of a nut. A tension sensor (906) is installed at the front end of the L-shaped plate (905).
2. A fibre tow straightening device according to claim 1, characterised in that: Five servo motors (8) are installed on the rear end of the inner wall of the housing (1), and the output ends of the five servo motors (8) are respectively connected to the first drafting roller (3), the second drafting roller (4), the third drafting roller (5), the fourth drafting roller (6) and the fifth drafting roller (7). A cover plate is installed on the rear end of the housing (1) by screws, and rectangular holes are opened on both sides of the housing (1), and dustproof nets are installed in the rectangular holes.
3. A fiber tow straightening device according to claim 1, wherein: The limiting component (2) includes a mounting block (201) installed on the outer wall of the housing (1), and a support rod (202) is installed at the front end of the mounting block (201).
4. A fibre tow straightening device according to claim 3, characterised in that: The support rod (202) has two circular grooves on the top of its outer wall, and each groove has a circular hole at its top. The limiting rod (203) has a screw at its bottom.
5. A fiber tow straightening device according to claim 1, wherein: The sixth stretching roller (10) is rotatably connected to the tension sensor (906). The sixth stretching roller (10) and the tension sensor (906) form a lifting mechanism with the geared motor (903) through the L-shaped plate (905) and the ball screw (904).
6. A fiber tow straightening device according to claim 1, wherein: The inner wall of the frame (901) is equipped with two sliding rods (902), and the bottom of the L-shaped plate (905) has two round holes, and a linear bearing (907) is installed in the round holes. At the same time, the sliding rods (902) are slidably installed in the linear bearings.