Rotary braiding machine

Abstract

The invention provides a rotary braiding machine, comprising a drive assembly, a reversing assembly and a yarn-carrying seat, the drive assembly comprises yarn-carrying disks which are arranged in lines and rows and are rotated simultaneously, the yarn-carrying seat is connected with a yarn-braiding spindle and moves ahead under the drive of the yarn-carrying disks, the reversing assembly comprises moveable partition plates arranged among the lines and rows of the yarn-carrying disks and fixed partition plates arranged on the peripheries of the lines and rows of yarn-carrying disks, at least two rail edges are formed on each moveable partition plate, each moveable partition plate rotates intermittently to form the inner movement locus of the yarn-carrying seat, and fixed rails are arranged on the fixed partition plates to form the automatic retracing movement locus of the yarn-carrying seat on an edge. Therefore, the movement path of a yarn-carrying device can be reliably controlled on a predetermined path so as to reduce the failure rate of the braiding machine, and simultaneously, being matched with special external assemblies, the rotary braiding machine can realize the continuous braiding of a preformed assembly with a needed section shape, thereby increasing the working efficiency and reducing the cost.

Description

technical field [0001] The invention relates to a braiding machine for braiding a three-dimensional preform, in particular to a rotary braiding machine. Background technique [0002] At present, among the three-dimensional weaving methods, there are typically two-step method, four-step method and rotation method, and the rotation method has the advantage of synchronous operation, so the production efficiency is high, and it is the fastest weaving speed among the existing three-dimensional weaving methods. Its disadvantage is that there are many moving parts and it is difficult to control. [0003] As shown in Figure 1, it is a schematic diagram of the table structure of a rotary knitting machine disclosed in US Patent No. 6,439,096. Each yarn-carrying disc 91 drives four yarn-carrying devices 92 to rotate, and every movement of 90 degrees needs to be stopped. Independently drive the overturning mechanism, rotate the yarn-carrying device 92 on the adjacent yarn-carrying disc...

AI Technical Summary

Problems solved by technology

However, its disadvantages are: the control system is complex, precise, and costly, and because it needs to stop and turn over every 90 degrees of movement, the work efficiency is greatly reduced, and each turning mechanism must lead out control lines, with the size of the table increase, the difficulty of implementation increases

[0004] In addition, there is also a rotary knitting machine that uses a fixed-shaped track plate to guide the advancement of the yarn-carrying device. Due to the fixed shape of the track plate, a reversing device and a control device must be added at the intersection of the yarn-carrying device. very complicated

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