Fiber step-by-step widening mechanism based on multi-dimensional motion trail

Abstract

The utility model discloses a fiber step-by-step widening mechanism based on a multi-dimensional motion trail, which relates to the technical field of fiber step-by-step widening, and comprises a single-seat mechanism, a multi-dimensional motion trail and a fiber step-by-step widening mechanism, the front guide wheel and the rear guide wheel are fixedly arranged on the rack and are respectively used as tension reference points for inputting and outputting fibers; according to the utility model, the multi-seat mechanism can be adjusted according to different parts of fibers through multiple times of widening treatment, and in the single-seat mechanism, the fibers are subjected to forces in different directions during widening due to rich and diversified movement tracks, such as a circle, an ellipse, a cycloid or a self-defined path, of the middle guide wheel, so that three-dimensional dispersion and expansion are realized; the fiber guiding parts between the adjacent single-seat mechanisms ensure that fibers can accurately enter the next single-seat mechanism and are uniformly stressed, the problem that fiber bundles are not uniform in thickness is effectively solved, the fiber broadening uniformity is greatly improved, and the production requirement for high broadening uniformity can be met.

Description

Technical Field

[0001] This utility model relates to the field of fiber step-by-step spreading technology, specifically a fiber step-by-step spreading mechanism based on multidimensional motion trajectory. Background Technology

[0002] In the field of fiber material processing, with the continuous development of industrial technology, the demand for high-performance fibers, such as carbon fiber, glass fiber, and aramid fiber, is increasing day by day.

[0003] These high-performance fibers are widely used in aerospace, automobile manufacturing, sports equipment and many other fields due to their excellent properties. In these applications, the fiber spreading process is a critical step.

[0004] Currently, common fiber spreading equipment can only achieve relatively simple spreading methods, making it difficult to perform comprehensive and detailed processing of fibers.

[0005] Most mechanisms can only stretch fibers unidirectionally in a simple plane, and the fibers are subjected to a single force direction during the widening process, which cannot fully realize three-dimensional dispersion and unfolding.

[0006] This results in uneven fiber distribution within the fiber bundle, which can easily lead to problems such as inconsistent strength and significant anisotropy during subsequent processing and use, affecting the quality and performance of the final product.

[0007] In view of the above, this application is hereby submitted. Utility Model Content

[0008] The purpose of this invention is to provide a fiber step-by-step stretching mechanism based on multidimensional motion trajectory to solve the problems mentioned in the background art.

[0009] To address the aforementioned technical problems, this utility model provides a fiber step-by-step spreading mechanism based on a multi-dimensional motion trajectory, comprising: a single-seat mechanism, which includes: a frame; a front guide wheel and a rear guide wheel, both fixedly mounted on the frame and serving as tension reference points for fiber input and output, respectively; an intermediate guide wheel, which achieves planar composite motion through a driving device, the motion trajectory of which includes a circle, an ellipse, a cycloid, or a user-defined path; a heating component, disposed at the front and rear guide wheels, which can employ heat-conducting oil heating or electric heating to soften the sizing agent on the fiber surface; and a multi-seat mechanism, composed of multiple single-seat mechanisms connected in series, with fibers passing sequentially through each single-seat mechanism, and each single-seat mechanism independently adjusting its motion trajectory, running speed, and heating temperature according to the fiber spreading requirements.

[0010] Furthermore, the driving device is a mechanical driving structure, which employs a crank-rocker mechanism or a cam mechanism to convert rotational motion into an elliptical or cycloidal motion trajectory of the intermediate guide wheel.

[0011] Furthermore, the driving device is an electric drive structure, which consists of an X / Y axis linear module. The X / Y axis linear module includes a servo motor and a ball screw, used to synthesize any planar trajectory of the intermediate guide wheel. The trajectory includes circles, ellipses, and custom closed paths.

[0012] Furthermore, the surface of the intermediate guide wheel is sandblasted to reduce wear on the fibers.

[0013] Furthermore, both the front and rear guide rollers are made of materials with good thermal conductivity to better transfer heat and soften the fiber sizing agent.

[0014] Furthermore, a fiber guiding component is provided between adjacent single-seat mechanisms in the multi-seat mechanism to guide the fiber accurately into the next single-seat mechanism.

[0015] Furthermore, the single-seat mechanism also includes a spacing adjustment device for adjusting the distance between the intermediate guide wheel and the front and rear guide wheels. The spacing adjustment device is mounted on the frame and connected to the intermediate guide wheel.

[0016] Furthermore, the frame is equipped with a tension sensor for detecting fiber tension. The tension sensor is electrically connected to the control module, and the control module adjusts the operating parameters of the drive device based on the tension detection results.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] In this invention, the multi-seat mechanism can adjust different parts of the fiber through multiple widening processes. In the single-seat mechanism, the intermediate guide wheel has a variety of movement trajectories, such as circles, ellipses, cycloids, or custom paths, so that the fiber is subjected to forces in different directions during widening, achieving three-dimensional dispersion. The fiber guiding component between adjacent single-seat mechanisms ensures that the fiber can accurately enter the next mechanism and be uniformly stressed, effectively solving the problem of uneven fiber bundle thickness and greatly improving the uniformity of fiber widening, which can meet the production requirements with high widening uniformity. Attached Figure Description

[0019] Figure 1 This is a fiber step-by-step stretching mechanism based on multidimensional motion trajectories;

[0020] Figure 2 This is a fiber step-by-step stretching mechanism based on multidimensional motion trajectories;

[0021] Figure 3 This is a fiber step-by-step stretching mechanism based on multidimensional motion trajectories.

[0022] In the diagram: 100, single-seat mechanism; 110, frame; 120, front guide wheel; 130, rear guide wheel; 140, intermediate guide wheel; 150, drive unit; 151, X / Y axis linear module; 160, heating assembly; 200, multi-seat mechanism. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Please see Figure 1-3 This utility model provides a technical solution:

[0026] A fiber step-by-step spreading mechanism based on multi-dimensional motion trajectory includes: a single-seat mechanism 100, which includes: a frame 110; a front guide wheel 120 and a rear guide wheel 130, both of which are fixedly mounted on the frame 110 and serve as tension reference points for fiber input and output, respectively; an intermediate guide wheel 140, which achieves planar composite motion through a drive device 150, and the motion trajectory of the intermediate guide wheel 140 includes a circle, an ellipse, a cycloid, or a user-defined path; a heating component 160, which is disposed at the front guide wheel 120 and the rear guide wheel 130, and the heating component 160 can adopt heat transfer oil heating or electric heating mode to soften the sizing agent on the fiber surface; and a multi-seat mechanism 200, which is composed of multiple single-seat mechanisms 100 connected in series. The fiber passes through each single-seat mechanism 100 in sequence, and each single-seat mechanism 100 can independently adjust its motion trajectory, running speed, and heating temperature according to the fiber spreading requirements.

[0027] The drive unit 150 is a mechanical drive structure, which uses a crank-rocker mechanism or a cam mechanism to convert rotary motion into an elliptical or cycloidal motion trajectory of the intermediate guide wheel 140.

[0028] The drive unit 150 is an electric drive structure, which consists of an X / Y axis linear module 151. The X / Y axis linear module 151 includes a servo motor and a ball screw, which are used to synthesize any planar trajectory of the intermediate guide wheel 140. The trajectory includes circles, ellipses, and custom closed paths.

[0029] The surface of the intermediate guide roller 140 is sandblasted to reduce wear on the fibers;

[0030] Both the front guide roller 120 and the rear guide roller 130 are made of materials with good thermal conductivity in order to better transfer heat to soften the fiber sizing agent;

[0031] In the multi-seat mechanism 200, a fiber guiding component is provided between adjacent single-seat mechanisms 100 to guide the fiber to accurately enter the next single-seat mechanism 100.

[0032] The single-seat mechanism 100 also includes a spacing adjustment device for adjusting the distance between the intermediate guide wheel 140 and the front guide wheel 120 and the rear guide wheel 130. The spacing adjustment device is mounted on the frame 110 and connected to the intermediate guide wheel 140.

[0033] A tension sensor for detecting fiber tension is installed on the frame 110. The tension sensor is electrically connected to the control module, and the control module adjusts the operating parameters of the drive device 150 according to the tension detection result.

[0034] The fiber raw material is input into the single-seat mechanism 100 under a certain tension state, and the front guide wheel 120 serves as the input tension reference point to stabilize the initial state of fiber input.

[0035] If the drive unit 150 is a mechanical drive structure, the crank-rocker mechanism or cam mechanism will convert the rotational motion into an elliptical or cycloidal motion trajectory of the intermediate guide wheel 140.

[0036] In the case of an electrically driven structure, the servo motor in the X / Y axis linear module 151 drives the ball screw to synthesize the planar trajectory of the intermediate guide wheel 140, such as a circle, ellipse, or a custom closed path. During the movement of the intermediate guide wheel 140, it simultaneously generates horizontal and vertical displacements, causing the fibers to undergo multi-directional alternating stress and achieving three-dimensional dispersion and unfolding.

[0037] The heating components 160 at the front guide roller 120 and the rear guide roller 130 are activated, using either heat transfer oil heating or electric heating mode. Utilizing the good thermal conductivity of the front guide roller 120 and the rear guide roller 130, the sizing agent on the fiber surface is softened, the friction between fibers is reduced, the fibers are assisted in spreading, and fiber damage is reduced.

[0038] The control module adjusts the trajectory shape, size, or frequency of the intermediate guide wheel 140 according to a preset program or operator instructions, and controls the expansion amplitude in real time.

[0039] Meanwhile, the tension sensor detects the tension of the fiber and feeds the signal back to the control module. The control module then adjusts the operating parameters of the drive device 150 to ensure that the fiber expands under appropriate tension.

[0040] After the fiber has been stretched, the guide wheel 130 is used as the output tension reference point, and the output single-seat mechanism 100 is used.

[0041] The fiber raw material is first fed into the first single-seat mechanism 100 (such as mechanism A) in the multi-seat mechanism 200. This mechanism uses milder broadening parameters, such as a smaller motion trajectory radius and frequency, to initially broaden the fiber.

[0042] After initial widening, the fibers are guided by fiber guide components between adjacent single-seat mechanisms 100 and accurately enter the next single-seat mechanism 100 (such as mechanism B).

[0043] Mechanism B, based on the fiber's state after being broadened by the previous mechanism, appropriately increases the broadening intensity, such as by increasing the radius and frequency of the motion trajectory, to further broaden the fiber. This process continues, with the fiber passing through multiple single-seat mechanisms 100 in sequence, gradually achieving a more ideal broadening effect.

[0044] The fiber enters the last single-seat mechanism 100 (such as mechanism C), which uses the final broadening parameters to ensure that the fiber achieves the ideal broadening effect, and then outputs to the multi-seat mechanism 200 to complete the entire fiber step-by-step broadening process.

[0045] Throughout the operation of the multi-mechanism 200, each single-mechanism 100 can independently adjust its own motion trajectory, running speed and heating temperature according to the fiber spreading requirements, so as to adapt to the spreading requirements at different stages.

[0046] Multiple mechanisms 200 undergo multiple widening processes to make targeted adjustments to different parts of the fiber.

[0047] In each single-seat mechanism 100, the different motion trajectories of the intermediate guide wheel 140 enable the fiber to be stressed in different directions, and the fiber guiding components between adjacent single-seat mechanisms 100 ensure that the fiber is stressed evenly, which is especially suitable for cases where the fiber bundle is not uniform in thickness, and effectively improves the uniformity of fiber broadening.

[0048] For high-density or thick fiber bundles, the multi-seat mechanism 200 adopts a phased and gradual widening method.

[0049] From the initial gentle widening parameters of the first single-seat mechanism 100 to the gradual increase in widening intensity in subsequent mechanisms, this progressive widening mode avoids damage to the fiber due to excessive force at once, while enabling a greater degree of widening and expanding the processing range of different types of fibers.

[0050] On the one hand, the surface of the intermediate guide wheel 140 in the single-seat mechanism 100 is sandblasted to reduce frictional damage to the fiber. On the other hand, the gradual widening method of the multi-seat mechanism 200 avoids excessive stress on the fiber during the widening process.

[0051] The heating components 160 of the front guide roller 120 and the rear guide roller 130 soften the sizing agent, further reducing the risk of fiber damage and improving the finished fiber quality and processing efficiency.

[0052] Regardless of the fiber material with different properties, such as carbon fiber, glass fiber or aramid fiber, each single-seat mechanism 100 in the multi-seat mechanism 200 can flexibly adjust the stretching parameters (such as motion trajectory, speed, heating temperature) according to the material properties.

[0053] The drive device 150 offers multiple drive options to meet the requirements of different fibers for the spreading trajectory, giving the mechanism good versatility and adaptability, and enabling it to handle spreading processing tasks for various complex fiber materials.

[0054] The tension sensor in the single-seat mechanism 100 monitors the fiber tension in real time. The control module precisely adjusts the operating parameters of the drive device 150 based on the tension feedback to ensure that the fiber is stretched under a stable tension state, thereby improving the stability and processing accuracy of the stretching process.

[0055] Meanwhile, the spacing adjustment device can flexibly adjust the distance between the middle guide wheel 140 and the front guide wheel 120 and the rear guide wheel 130 to adapt to the needs of different fiber materials and processing technology, and further optimize the widening effect.

Claims

1. A fiber step-by-step spreading mechanism based on multidimensional motion trajectory, characterized in that, include: A single-seat mechanism (100) comprising: Rack (110); The front guide wheel (120) and the rear guide wheel (130) are both fixedly mounted on the frame (110) and serve as tension reference points for fiber input and output, respectively; The intermediate guide wheel (140) achieves planar composite motion through the drive device (150), and the motion trajectory of the intermediate guide wheel (140) includes a circle, an ellipse, a cycloid, or a user-defined path; A heating assembly (160) is disposed at the front guide wheel (120) and the rear guide wheel (130). The heating assembly (160) can be heated by heat transfer oil or by electric heating to soften the sizing agent on the fiber surface. The multi-seat mechanism (200) is composed of multiple single-seat mechanisms (100) connected in series. The fiber passes through each single-seat mechanism (100) in sequence, and each single-seat mechanism (100) can independently adjust its own movement trajectory, running speed and heating temperature according to the fiber spreading requirements.

2. The fiber step-by-step spreading mechanism based on multidimensional motion trajectory according to claim 1, characterized in that, The drive device (150) is a mechanical drive structure, which uses a crank-rocker mechanism or a cam mechanism to convert rotational motion into an elliptical or cycloidal motion trajectory of the intermediate guide wheel (140).

3. The fiber step-by-step spreading mechanism based on multidimensional motion trajectory as described in claim 1, characterized in that: The drive device (150) is an electric drive structure, which is composed of an X / Y axis linear module (151). The X / Y axis linear module (151) includes a servo motor and a ball screw, which are used to synthesize any planar trajectory of the intermediate guide wheel (140). The trajectory includes circles, ellipses, and custom closed paths.

4. The fiber step-by-step spreading mechanism based on multidimensional motion trajectory as described in claim 1, characterized in that: The surface of the intermediate guide wheel (140) is sandblasted to reduce wear on the fibers.

5. The fiber step-by-step spreading mechanism based on multidimensional motion trajectory as described in claim 1, characterized in that: Both the front guide wheel (120) and the rear guide wheel (130) are made of materials with good thermal conductivity in order to better transfer heat to soften the fiber sizing agent.

6. The fiber step-by-step spreading mechanism based on multidimensional motion trajectory as described in claim 1, characterized in that: In the multi-seat mechanism (200), a fiber guiding component is provided between adjacent single-seat mechanisms (100) to guide the fiber to accurately enter the next single-seat mechanism (100).

7. The fiber step-by-step spreading mechanism based on multidimensional motion trajectory as described in claim 1, characterized in that: The single-seat mechanism (100) further includes a spacing adjustment device for adjusting the distance between the intermediate guide wheel (140) and the front guide wheel (120) and the rear guide wheel (130). The spacing adjustment device is installed on the frame (110) and connected to the intermediate guide wheel (140).

8. The fiber step-by-step spreading mechanism based on multidimensional motion trajectory as described in claim 1, characterized in that: The frame (110) is equipped with a tension sensor for detecting fiber tension. The tension sensor is electrically connected to the control module, and the control module adjusts the operating parameters of the drive device according to the tension detection result.

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