High-precision profiling control device and method for rotary special-shaped preform

A technology of profiling control and prefabrication, which is applied in the fields of textiles, textiles, papermaking, looms, etc. It can solve problems such as difficult to realize, low weaving efficiency, complicated operation, etc., achieve high-precision profiling control, and prevent yarn from falling off Effect

Inactive Publication Date: 2021-11-02
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the existing manual-assisted semi-mechanized weaving process, the design of the profiling weaving process focuses on ensuring the continuity of the fiber yarn bundles in the prefabricated body and the uniform distribution of structural variation points. The profiling knitting process has complex operation and low knitting efficiency, which is difficult to realize in automatic knitting

Method used

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  • High-precision profiling control device and method for rotary special-shaped preform

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Embodiment Construction

[0018] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer ” refer to directions towards or away from the geometric center of a particular part, respectively.

[0019] Such as figure 1 As shown, the high-precision profiling control technology of a rotary special-shaped body preform in this embodiment includes a yarn array, an oblique yarn guide mechanism 4, a heald frame 5, a vertical yarn guide mechanism 6, a reed 7, and a rotary special-shaped body prefabricated body 8. The slanting yarn guiding mechanism 4 is located on the left si...

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Abstract

The invention discloses a high-precision profiling control device and method for a rotary special-shaped preform, and relates to the field of three-dimensional weaving of composite materials. The high-precision profiling control device comprises an oblique yarn guide mechanism, a heald frame, a setting mechanism, a reed and a vertical yarn guide mechanism. The invention relates to the field of three-dimensional weaving of composite materials. According to the high-precision profiling control technology for the rotary special-shaped preform, a three-dimensional profiling weaving process technology for the rotary special-shaped preform is researched, directional yarns are added into a yarn array in the z direction, and two groups of transverse fibers and longitudinal fibers which are perpendicular to each other are added into a plane perpendicular to the interweaving thickness direction, so that a rotary special-shaped fiber intertexture is formed; and the high-precision profiling control device and method are of great significance for realizing high-precision profiling control.

Description

technical field [0001] The invention relates to the technical field of three-dimensional weaving and forming fabrics, in particular to a high-precision profiling control device and method for a prefabricated body of a rotary profile. Background technique [0002] During the weaving and forming process of the rotary profiled body, the profiling weaving process is required to obtain the net size or near-size prefabricated body. When the existing manual-assisted semi-mechanized weaving process, the design of the profiling weaving process focuses on ensuring the continuity of the fiber yarn bundles in the prefabricated body and the uniform distribution of structural variation points. The profiling knitting process is complex in operation and low in knitting efficiency, and it is difficult to realize automatic knitting. It is necessary to systematically study the interaction between the existing weaving process and the structure of the preform, analyze the structural characteris...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): D03D41/00
CPCD03D41/004
Inventor单忠德汪旺杨浩秦王敏全皓月
OwnerNANJING UNIV OF AERONAUTICS & ASTRONAUTICS