Designing of the Tracks and Modeling of the Carrier Arrangement in Square Rotary Braiding Machine

Shao, Guowei; Sun, Ze; Chen, Ge; Zhou, Qing; Wang, Zhenxi; Bing, Wang

doi:10.3390/app11177861

Applied Sciences

2021

DOI: 10.3390/app11177861

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Designing of the Tracks and Modeling of the Carrier Arrangement in Square Rotary Braiding Machine

Guowei Shao

Ze Sun

Ge Chen

et al.

Abstract: This paper describes the splicing of an 8 × 8 484 cross-break track, based on the carrier arrangement characteristics (CAC) method for track splicing technology. The arrangement period of the carrier (T) in the track is obtained in order to discern which slot has a carrier in a period and which one does not. Six basic types of track unit are deconstructed, and a mathematical model is established to determine the possible state of the carrier in each slot of the track unit. Finally, the specific pattern of the … Show more

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Cited by 3 publications

References 15 publications

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Structural modeling and analysis of three-dimensional cross-linked braided preforms

Du,

Meng,

Hong

et al. 2023

AUTEX Research Journal

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Rotary braiding is widely used in the preparation of high-performance fiber composites. However, neither conventional rotary two-dimensional braiding nor rotary three-dimensional braiding can prepare three-dimensional preforms with low porosity and dense surface yarns. This article designs a three-dimensional cross-linked braiding equipment, describes the mechanism of carrier motion of three-dimensional cross-linked braiding, and obtains a numerical model of three-dimensional cross-linked braided preforms by establishing the spatial coordinate system of the braided chassis and using cubic B-spline curve fitting. The reasons for the large difference between the numerical model of preform and the real fabric are analyzed, and an optimization algorithm is proposed to make the fabric compact by gathering the yarn to the center of the fabric. The experimental samples are braided on a three-dimensional cross-linked braiding machine, and the reliability of the optimization algorithm is verified by comparing the yarn coordinates of the experimental samples with those of the optimized numerical model. The accurate establishment of the geometric model of the preform provides a solid foundation for carrying out the prediction of the mechanical properties of composite materials.

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Structural modeling and analysis of three-dimensional cross-linked braided preforms

Du,

Meng,

Hong

et al. 2023

AUTEX Research Journal

View full text Add to dashboard Cite

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Effect of braiding angle and yarn length compensating mechanism of carrier on braiding of branch-merge structure in multi-braider

SAITO,

TANIGUCHI,

KONDO

et al. 2024

J. Text. Eng.

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Our previously proposed path simulation method of carrier on a multi-braider was used to determine the initial arrangement of carriers to make a braid with a branch-merge structure and fabricate a prototype braid. However, the prototype had a small braiding angle, and the structure of the branch-merge switching part was not well-formed. To address this, we investigated the relationship between the yarn feed amount from the carrier moving on the multi-braider and the carrier's yarn length compensating mechanism. We proposed an improved compensating mechanism to prepare a braid with a larger braiding angle. The resulting braid was found to have a well-formed branch-merge structure.

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マルチブレイダにおけるキャリア経路シミュレーションの開発

SAITO,

TANIGUCHI,

KONDO

et al. 2023

J. Text. Eng.

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Braiding technology is attracting attention as a forming method for fiber-reinforced composite preforms. The square braider called the multi-braider can produce braiding preforms with various cross-sectional shapes. In the multi-braider, as the number of carriers increases and the carrier paths become more complex, it becomes more difficult to think about how to prevent carriers from colliding with each other. Therefore, the purpose of this paper is to develop simulation software for efficiently designing the carrier paths on the multi-braider when manufacturing a braiding preform with complex structure. We developed a simulator for the behavior of carriers when horn gears rotate continuously, using the carrier's initial position and path or track as input values. The collisions can be identified in advance because the simulator indicates an error if the input values are not suitable. By introducing the carrier track simulation for the multi-braider, the work time to devise carrier paths and arrangements could be reduced to 1/3 for simple carrier paths and to less than 1/4 for complex carrier paths, making it possible to perform initial carrier placement efficiently. The results of this research will also improve the efficiency of design on the carrier's initial placement and track and the safety of multi-braider operation.

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Designing of the Tracks and Modeling of the Carrier Arrangement in Square Rotary Braiding Machine

Cited by 3 publications

References 15 publications

Structural modeling and analysis of three-dimensional cross-linked braided preforms

Structural modeling and analysis of three-dimensional cross-linked braided preforms

Effect of braiding angle and yarn length compensating mechanism of carrier on braiding of branch-merge structure in multi-braider

マルチブレイダにおけるキャリア経路シミュレーションの開発

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