Device and method for realizing integral knitting for horizontal division area structures

Abstract

The invention discloses a device and method for realizing integral knitting for horizontal division area structures. The device comprises a yarn fixing device, a controlling device, a driving device, and a division area knitting working table, wherein the yarn fixing device is used for fixing a start knitting yarn and allowing the tensile force to be even, so as to be easy to knit; the controlling device controls the driving device to operate by presetting yarn carrying device moving programs corresponding to each knitting structure; the driving device comprises a power source and a telescopic rod group; the division knitting working table is composed of at least two independent areas; each division area is formed by a yarn carrying device and a knitting track; the yarn carrying devices move in line directions, and then in the row directions with the bearing of knitting tracks; and differences of moving directions, times, and step distances of the yarn carrying devices in a machine circulation derives different knitting structures. The device and the method can realize distribution of division areas with different structures in peripheral direction of a revolved body, and satisfy differentiation using requirements for different areas of a pre-form body.

Description

technical field [0001] The invention belongs to the field of textiles, and relates to a device and a method capable of realizing the integrated weaving of a horizontal sub-area structure, which belongs to a processing device and a processing method of a textile structure prefabricated body. Background technique [0002] Different textile structure preforms have different reinforcement effects on composite materials. The three-dimensional braided structure can significantly improve the strength and stiffness as a whole, and has excellent damage resistance, good mechanical properties and ablation resistance, but it is very sensitive to processing and has a large loss of performance. The fibers in the warp direction of the angle interlocking structure are bent, and the mechanical properties are lower than those of the three-dimensional braided structure, but it is not sensitive to processing and can be processed to a greater extent. Orthogonal three-way structure The yarns in ...

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Problems solved by technology

The three-dimensional braided structure can significantly improve the strength and stiffness as a whole, has excellent damage resistance, has good mechanical properties and ablation resistance, but is very sensitive to processing and has a large loss of performance

[0005] (1) One piece of equipment can only be used to weave one type of structural prefabricated body. To achieve multi-structure weaving, the equipment must be replaced. There are two major problems: one is Second, it is easy to make mistakes when the yarn is moved from the current equipment to the next structure weaving equipment. Third, there is a clear interface between one structure and the next structure.

[0006] (2) The existing fabrics have the same structure in the horizontal direction. For the three-dimensional woven structure, unless it is woven in net size, the processing will greatly damage the performance of the composite material. The processing of the corner interlocking structure has little effect on the performance, but the mechanical properties are difficult to meet the requirements. Although the mechanical properties and processability of the orthogonal three-way can meet the requirements, the weaving process and quality control are more difficult.

[0007] (3) For the prefabricated body of the revolving body, different areas along the transverse circumferential direction need local reinforcement design such as drilling and reinforcement, and the same structure cannot meet the design requirements at the same time

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