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

Abstract

The invention discloses a fiber step-by-step widening mechanism based on a multi-dimensional motion trail, and relates to the technical field of fiber step-by-step widening, and the fiber step-by-step widening mechanism comprises a single-seat mechanism, and the single-seat mechanism comprises a rack; 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; the multi-seat mechanism can be adjusted according to different parts of fibers through multiple times of broadening treatment, and in the single-seat mechanism, the fibers are subjected to force in different directions during broadening through rich and diversified movement tracks, such as a circle, an ellipse, a cycloid or a user-defined path, of a middle guide wheel, so that three-dimensional dispersion and expansion are achieved; 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] The present invention relates to the technical field of fiber step-by-step broadening, and specifically to a fiber step-by-step broadening mechanism based on multi-dimensional motion trajectories. Background Art

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

[0003] Due to their excellent properties, these high-performance fibers are widely used in many fields such as aerospace, automobile manufacturing, and sports equipment. In these application scenarios, the broadening treatment of fibers is a crucial link.

[0004] At present, common broadening equipment usually can only achieve relatively single broadening methods and is difficult to comprehensively and meticulously process fibers.

[0005] Most mechanisms can only unidirectionally stretch fibers in a simple plane, and the force direction of the fibers during the broadening process is single, making it impossible to fully achieve three-dimensional dispersion and expansion.

[0006] This leads to uneven distribution of fibers inside the fiber bundle, and in subsequent processing and use, problems such as inconsistent strength and obvious anisotropy are likely to occur, affecting the quality and performance of the final product.

[0007] In view of this, the present application is specifically proposed. Summary of the Invention

[0008] The purpose of the present invention is to provide a fiber step-by-step broadening mechanism based on multi-dimensional motion trajectories to solve the problems raised in the above background art.

[0009] To solve the above technical problems, a fiber step-by-step broadening mechanism based on multi-dimensional motion trajectories provided by the present invention includes: a single-seat mechanism, the single-seat mechanism includes: a frame; a front guide wheel and a rear guide wheel, both of which are fixedly installed on the frame and respectively serve as the tension reference points for fiber input and output; an intermediate guide wheel, which realizes planar compound motion through a driving device, and the motion trajectory of the intermediate guide wheel includes a circle, an ellipse, a cycloid or a user-defined path; a heating component, arranged at the front guide wheel and the rear guide wheel, and the heating component can adopt a heat-conducting oil heating or electric heating mode to soften the sizing agent on the fiber surface; a multi-seat mechanism, which is composed of a plurality of the single-seat mechanisms connected in series in sequence, the fibers pass through each single-seat mechanism in sequence, and each single-seat mechanism can independently adjust its own motion trajectory, running speed and heating temperature according to the broadening requirements of the fibers.

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

[0011] Further, the driving device is an electric driving structure, which is composed of an X / Y-axis linear module. The X / Y-axis linear module includes a servo motor and a ball screw, and is used to synthesize any planar trajectory of the intermediate guide wheel. The trajectory includes a circle, an ellipse, and a custom closed path.

[0012] Further, the surface of the intermediate guide wheel is treated by sandblasting to reduce the wear on the fiber.

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

[0014] Further, a fiber guiding component is arranged between adjacent single-seat mechanisms in the multi-seat mechanism, which is used to guide the fiber to accurately enter the next single-seat mechanism.

[0015] Further, the single-seat mechanism further includes a spacing adjusting device for adjusting the spacing between the intermediate guide wheel and the front guide wheel and the rear guide wheel. The spacing adjusting device is installed on the frame and is connected to the intermediate guide wheel.

[0016] Further, a tension sensor for detecting the fiber tension is arranged on the frame. The tension sensor is electrically connected to the control module, and the control module adjusts the operating parameters of the driving device according to the tension detection result.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, through multiple broadening treatments, the multi-seat mechanism can be adjusted for different parts of the fiber. In the single-seat mechanism, the rich and diverse motion trajectories of the intermediate guide wheel, such as circles, ellipses, cycloids or custom paths, enable the fiber to be subjected to forces in different directions during broadening, realizing three-dimensional dispersion and unfolding; the fiber guiding components between adjacent single-seat mechanisms ensure that the fiber can accurately enter the next mechanism and be evenly stressed, effectively solving the problem of uneven thickness of the fiber bundle, greatly improving the uniformity of fiber broadening, and meeting the production requirements with high requirements for broadening uniformity. Description of the Drawings

[0018] Figure 1 For a fiber step-by-step broadening mechanism based on multi-dimensional motion trajectories; Figure 2 For a fiber step-by-step broadening mechanism based on multi-dimensional motion trajectories; Figure 3For a fiber step-by-step broadening mechanism based on multi-dimensional motion trajectories.

[0019] In the figure: 100, single-seat mechanism; 110, frame; 120, leading wheel; 130, trailing wheel; 140, intermediate wheel; 150, driving device; 151, X / Y-axis linear module; 160, heating component; 200, multi-seat mechanism. Detailed implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1 - 3 , the present invention provides a technical solution: A fiber step-by-step broadening mechanism based on multi-dimensional motion trajectories, comprising: a single-seat mechanism 100, the single-seat mechanism 100 includes: a frame 110; a leading wheel 120 and a trailing wheel 130, both of which are fixedly installed on the frame 110 and respectively serve as the tension reference points for fiber input and output; an intermediate wheel 140, which realizes planar compound motion through a driving device 150, and the motion trajectory of the intermediate wheel 140 includes a circle, an ellipse, a cycloid or a user-defined path; a heating component 160, arranged at the leading wheel 120 and the trailing wheel 130, and the heating component 160 can adopt a heat-conducting oil heating or an electric heating mode for softening the sizing agent on the fiber surface; a multi-seat mechanism 200, which is sequentially composed of a plurality of single-seat mechanisms 100, the fiber passes through each single-seat mechanism 100 in sequence, and each single-seat mechanism 100 can independently adjust its own motion trajectory, running speed and heating temperature according to the broadening requirements of the fiber.

[0023] The driving device 150 is a mechanical driving structure, and this mechanical driving structure adopts a crank-rocker mechanism or a cam mechanism for converting rotational motion into an elliptical or cycloidal motion trajectory of the intermediate wheel 140.

[0024] The driving device 150 is an electric driving structure, and the electric driving structure 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 for synthesizing any planar trajectory of the intermediate wheel 140, and the trajectory includes a circle, an ellipse, and a custom closed path.

[0025] The surface of the intermediate wheel 140 is sandblasted to reduce the wear on the fiber; Both the leading wheel 120 and the trailing wheel 130 are made of materials with good thermal conductivity to better transfer heat and soften the fiber sizing agent. Between adjacent single-seat mechanisms 100 in the multi-seat mechanism 200, there are fiber guiding components for guiding the fibers to accurately enter the next single-seat mechanism 100.

[0026] The single-seat mechanism 100 further includes a spacing adjustment device for adjusting the spacing between the middle guide wheel 140 and the leading wheel 120 and the trailing wheel 130. The spacing adjustment device is installed on the frame 110 and is connected to the middle guide wheel 140.

[0027] On the frame 110, there is a tension sensor for detecting the fiber tension. The tension sensor is electrically connected to the control module, and the control module adjusts the operating parameters of the driving device 150 according to the tension detection result.

[0028] The fiber raw material is input into the single-seat mechanism 100 in a certain tension state. The leading wheel 120 serves as the input tension reference point to stabilize the initial state of the fiber input.

[0029] If the driving device 150 is a mechanical driving structure, a crank-rocker mechanism or a cam mechanism converts the rotational motion into an elliptical or cycloidal motion trajectory of the middle guide wheel 140. If it is an electric driving structure, the servo motor in the X / Y-axis linear module 151 drives the ball screw to synthesize planar trajectories such as a circular, elliptical or custom closed path of the middle guide wheel 140. During the movement of the middle guide wheel 140, it simultaneously generates horizontal and vertical displacements, causing the fibers to experience multi-directional alternating stresses and realizing three-dimensional dispersion and unfolding.

[0030] The heating components 160 at the leading wheel 120 and the trailing wheel 130 are started, adopting a heat-conducting oil heating or electric heating mode. Utilizing the good heat-conducting performance of the leading wheel 120 and the trailing wheel 130, the sizing agent on the fiber surface is softened, the friction between the fibers is reduced, the fiber broadening is assisted, and at the same time, fiber damage is reduced.

[0031] The control module adjusts the trajectory shape, size or frequency of the middle guide wheel 140 according to the preset program or the operator's instruction to control the broadening amplitude in real time.

[0032] At the same time, the tension sensor detects the fiber tension and feeds back the signal to the control module. The control module adjusts the operating parameters of the driving device 150 accordingly to ensure that the fibers are broadened under appropriate tension.

[0033] The fibers after the broadening treatment take the trailing wheel 130 as the output tension reference point and are output from the single-seat mechanism 100.

[0034] The fiber raw material is first input into the first single-seat mechanism 100 (such as mechanism A) in the multi-seat mechanism 200, which uses milder widening parameters, such as smaller motion trajectory radius and frequency, to perform preliminary widening on the fiber.

[0035] The fibers that have undergone preliminary widening pass through the fiber guide components between adjacent single-seat mechanisms 100 and accurately enter the next single-seat mechanism 100 (such as mechanism B).

[0036] Mechanism B appropriately increases the stretching intensity according to the fiber state after the stretching by the previous mechanism, such as increasing the radius and frequency of the motion trajectory, to further stretch the fiber. Similarly, the fiber passes through multiple single-seat mechanisms 100 in sequence, gradually achieving a more ideal stretching effect.

[0037] The fiber enters the last single-seat mechanism 100 (such as mechanism C), which adopts the final widening parameters to ensure that the fiber achieves the ideal widening effect, and then outputs the multi-seat mechanism 200 to complete the entire fiber step-by-step widening process.

[0038] During the entire operation of the multi-seat mechanism 200, each single-seat mechanism 100 can independently adjust its own motion trajectory, operating speed and heating temperature according to the fiber widening requirements to adapt to the widening requirements at different stages.

[0039] The multiple mechanisms 200 carry out targeted adjustments to different parts of the fiber through multiple widening processes.

[0040] In each single-seat mechanism 100, the different movement trajectories of the intermediate guide wheel 140 can cause the fibers to be stressed in different directions, and the fiber guiding components between adjacent single-seat mechanisms 100 ensure that the fibers are evenly stressed, which is particularly suitable for situations where the fiber bundles are uneven in thickness, and effectively improves the uniformity of fiber widening.

[0041] For high-density or thick fiber bundles, the multi-seat mechanism 200 adopts a phased and gradual widening method.

[0042] From the mild widening parameters of the first single-seat mechanism 100 to the gradual increase in widening strength of subsequent mechanisms, this gradual widening mode avoids damage to the fiber due to excessive force at one time, while achieving a larger widening, broadening the processing range of the mechanism for different types of fibers.

[0043] On the one hand, the surface of the intermediate guide wheel 140 in the single-seat mechanism 100 is sandblasted to reduce friction damage with the fiber. On the other hand, the gradual widening method of the multi-seat mechanism 200 prevents the fiber from being subjected to excessive stress during a single widening process.

[0044] The heating components 160 of the front guide wheel 120 and the rear guide wheel 130 soften the sizing agent, further reducing the risk of fiber damage and improving the finished fiber quality and processing efficiency.

[0045] For each single-seat mechanism 100 in the multi-seat mechanism 200, regardless of the fiber material with different characteristics such as carbon fiber, glass fiber or aramid fiber, it can flexibly adjust the spreading parameters (such as movement trajectory, speed, heating temperature) according to the material characteristics.

[0046] The selection of various driving modes of the driving device 150 can also meet the requirements of different fibers for the spreading trajectory, making the mechanism have good versatility and adaptability, and capable of coping with the spreading processing tasks of various complex fiber materials.

[0047] The tension sensor in the single-seat mechanism 100 monitors the fiber tension in real time, and the control module precisely adjusts the operating parameters of the driving device 150 according to the tension feedback to ensure that the fiber is spread under a stable tension state, improving the stability and processing accuracy of the spreading process.

[0048] At the same time, 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 requirements of different fiber materials and processing technologies, and further optimize the spreading effect.

Claims

1. A fiber step-by-step broadening mechanism based on a multi-dimensional motion trajectory, characterized in that Comprising: A single-seat mechanism (100), the single-seat mechanism (100) comprising: A frame (110); A leading pulley (120) and a trailing pulley (130), both fixedly installed on the frame (110) and serving as the tension reference points for fiber input and output respectively; An intermediate pulley (140) which achieves a planar compound motion through a driving device (150), and the motion trajectory of the intermediate pulley (140) includes a circle, an ellipse, a cycloid or a user-defined path; A heating assembly (160) arranged at the leading pulley (120) and the trailing pulley (130), and the heating assembly (160) can adopt a heat-conducting oil heating or an electric heating mode for softening the sizing agent on the fiber surface; A multi-seat mechanism (200) which is successively formed in series by a plurality of the single-seat mechanisms (100), fibers pass through each single-seat mechanism (100) in sequence, and each single-seat mechanism (100) can independently adjust its own motion trajectory, running speed and heating temperature according to the fiber spreading requirement.

2. The fiber step-by-step broadening mechanism based on a multi-dimensional motion trajectory according to claim 1, wherein The driving device (150) is a mechanical driving structure, and this mechanical driving structure adopts a crank-rocker mechanism or a cam mechanism for converting the rotary motion into an elliptical or cycloid motion trajectory of the intermediate pulley (140).

3. A fiber step-by-step broadening mechanism based on a multi-dimensional motion trajectory according to claim 1, characterized in that: The driving device (150) is an electric driving structure, and the electric driving structure is composed of an X / Y-axis linear module (151), and the X / Y-axis linear module (151) includes a servo motor and a ball screw for synthesizing any planar trajectory of the intermediate pulley (140), and the trajectory includes a circle, an ellipse, a custom closed path.

4. A fiber stepwise broadening mechanism based on a multi-dimensional motion trajectory according to claim 1, characterized in that: The surface of the intermediate pulley (140) is treated by sandblasting to reduce the wear on the fiber.

5. A fiber step-by-step broadening mechanism based on a multi-dimensional motion trajectory according to claim 1, characterized in that: Both the leading pulley (120) and the trailing pulley (130) are made of materials with good thermal conductivity so as to better transfer heat to soften the fiber sizing agent.

6. The fiber step-by-step broadening mechanism based on a multi-dimensional motion trajectory according to claim 1, characterized in that: A fiber guiding component is arranged between adjacent single-seat mechanisms (100) in the multi-seat mechanism (200) for guiding the fiber to accurately enter the next single-seat mechanism (100).

7. The fiber step-by-step broadening mechanism based on a multi-dimensional motion trajectory according to claim 1, characterized in that: The single-seat mechanism (100) further includes a spacing adjusting device for adjusting the spacing between the intermediate pulley (140) and the leading pulley (120) and the trailing pulley (130), and the spacing adjusting device is installed on the frame (110) and connected to the intermediate pulley (140).

8. The fiber step-by-step broadening mechanism based on a multi-dimensional motion trajectory according to claim 1, wherein: A tension sensor for detecting the fiber tension is arranged on the frame (110), the tension sensor is electrically connected to a control module, and the control module adjusts the running parameters of the driving device according to the tension detection result.

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