Novel braiding machine capable of achieving multi-structure conversion and multi-angle forming

Abstract

The invention discloses a novel braiding machine capable of achieving multi-structure and multi-angle forming. The novel braiding machine comprises an adjustable braiding workbench, a braiding bed, a frame and a hydraulic lifting device, wherein the braiding bed is arranged on the adjustable braiding workbench and comprises a braiding rail and a yarn carrier; the hydraulic lifting device comprises a hydraulic pump station and an extensible upright post; the hydraulic pump station and the extensible upright post are communicated through a hydraulic pipe; one end of the extensible upright post is arranged at one side of the bottom surface of the adjustable braiding workbench, and the other end of the bottom surface of the adjustable braiding workbench is arranged on a base; and the adjustable braiding workbench is rotatably arranged on the frame. The novel braiding machine not only can achieve the braiding of three-dimensional multi-directional different structures, but also can carry out multi-angle braiding and forming such as horizontal braiding and forming and vertical braiding and forming according to the processing requirements.

Description

technical field [0001] The invention belongs to the field of textiles and relates to a novel braiding machine capable of realizing multi-structure conversion and multi-angle forming, which belongs to processing equipment for three-dimensional multi-directional preforms. Background technique [0002] Three-dimensional braided composites are called third-generation fiber-reinforced composites, and they have many outstanding advantages compared with two-dimensional braided composites. Its integrity significantly improves strength and stiffness, has excellent damage resistance, and has good mechanical properties and ablation resistance. It has been widely used in high-tech fields such as aerospace and aviation. Three-dimensional braided composites have designability. The performance of the component materials and the material manufacturing process determine the material properties of the composite material. The material unit cell of the woven composite material has significant...

AI Technical Summary

Problems solved by technology

Three-dimensional four-way is the most typical three-dimensional braided structure, which significantly improves the mechanical properties of the material along the thickness direction, but the spatial configuration of the three-dimensional four-way fiber bundles reduces the in-plane mechanical properties

[0007] (1) One piece of equipment can only weave one structure. To achieve multiple structures, the equipment must be replaced to remove the yarn from the yarn carrier. There are two major problems in this process: one is labor-intensive, but it is easy Mistakes or even product scrapping

[0008] (2) At present, all three-dimensional and multi-directional weaving is done in a horizontal position, and there are problems: ① The width of the product is not wide, and the wider the width, the stronger the bell mouth of the fabric forming area and the yarn carrying area, which will cause uneven circumferential density of the product; ② In order to make long fabrics, the weaving height must be increased, which will bring safety hazards for high-altitude operations. As the height increases, the weight of the yarn and elastic threads will increase. Pulling down will make the product density not high, or the weaving angle will not be large.

The disadvantages are high manufacturing cost, high processing difficulty, and small equipment capacity. Compared with the determinant structure, the capacity of the yarn carrier in the same area is more than an order of magnitude, and it cannot realize three-dimensional four-way, five-way, six-way and seven-way. Different structures are woven on the same equipment, which can be turned over

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