Control system and adjustment method for fiber guide ring of circular three-dimensional braiding machine

Abstract

The invention relates to a fibre guide ring control system for an annular three-dimensional knitting machine and an adjustment method thereof. According to the fibre guide ring control system, a mandrel shape and dimension detection device and a knitting mandrel are oppositely arranged, in which an infrared transmitting tube and a photoelectric receiving tube are installed; a logical processing module is connected with a hydraulic adjustment device, and comprises a microcomputer processor, a drive circuit module and a signal processing module; the microcomputer processor is connected with the drive circuit module; the drive circuit module is connected with the infrared transmitting tube; the photoelectric receiving tube is connected with the signal processing module; the signal processing module is connected with the microcomputer processor through an AD sampling circuit; a hydraulic cylinder for adjusting the size of an adjustable fibre guide ring is installed on the guide ring; the hydraulic adjustment device is connected with the hydraulic cylinder through a pipeline. The fibre guide ring control system disclosed by the invention is capable of reducing the deformation degrees of fibres in a convergent area, thus the fibres are closer to straight lines in the convergent area and the basically constant taper angle of the convergent area is kept, the knitting angle of a fabric on the surface of the mandrel is closer to an ideal value, and the weaving quality is improved.

Description

technical field [0001] The invention relates to a composition system of a three-dimensional circular knitting machine, in particular to a fiber guide ring control system of the circular three-dimensional knitting machine and an adjustment method thereof, belonging to the technical field of textile machinery. Background technique [0002] The circular three-dimensional knitting machine is a knitting machine that makes fibers interweave with each other according to a certain movement law to form a fabric. The fiber spindle moves on the ring-shaped yarn carrying disc according to a certain law, and the fibers are pulled to weave efficiently and quickly and cover the mandrel. surface. In the long-term research and development process, in order to better cover the fiber on the surface of the mandrel according to a certain braiding angle, the mechanism of fiber guide ring was gradually introduced to control the shape and size of the fiber convergence area. [0003] The circular t...

AI Technical Summary

Problems solved by technology

Therefore, in many production occasions, in the case of using a shape-position fixed guide ring, since the shape of the guide ring does not change reasonably with the cross-sectional shape and size of the mandrel, the braiding angle will be different in different parts of the fabric during the weaving process. Generate large fluctuations, which will affect the weaving effect

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