Micro tension concentric yarn binding machine

Abstract

The invention discloses a micro-tension concentric yarn winding machine which comprises a first paying-off device and a first aircraft device. The first paying-off device comprises a control device, a paying-off driving motor, a horizontally-placed paying-off rotating shaft and a paying-off yarn roll, the control device adjusts output moment of the paying-off driving motor according to change value of the radius of the paying-off yarn roll to enable tension of yarn paid off by the paying-off yarn roll to be maintained stable, and the first aircraft device is used for being wound on an optical cable at certain rotating speed after the yarn goes through a needle tube and a yarn-passing guide wheel. A novel concentric yarn winding machine structure is adopted, so that rotating inertia of an aircraft is reduced substantially, and friction force applied on the yarn is reduced. By an electrical torque radius detection device and a moment control algorithm, moment output value of a servo motor is effectively controlled, fluctuation of yarn winding tension is enabled to reduced to some extent when the yarn winding machine speeds up and slows down, and unqualified optical fiber attenuation caused by overlarge yarn winding tension is avoided.

Description

technical field [0001] The invention relates to cable binding yarns for optical cables, in particular to a micro tension concentric yarn binding machine. Background technique [0002] In the current yarn binding equipment for optical cables, the traditional yarn binding machine uses double servo motors to control the rotation of the yarn cluster, the main shaft part and the aircraft part respectively. Among them, the aircraft part adopts the speed control method, that is, the speed is given, the torque is not controlled; the transmission motor of the yarn group and the main shaft is controlled by the torque, that is, the torque is given, the speed is not controlled, so as to complete the yarn binding action and ensure The binding tension meets certain requirements. [0003] The defect of this kind of equipment is that in the process of starting and stopping the yarn binding machine, the rotational inertia of the aircraft part is very large, and at the same time, in order to...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to solve the problem that the radius of the pay-off yarn cluster becomes smaller after the number of yarns on the pay-off yarn cluster decreases in the yarn binding process of the traditional yarn binding machine, and the inertia of the rotating part of the aircraft is too large, and the route of the yarn passes through. The friction force is too large, which causes the tension of the binding yarn to fluctuate too much in the speed up and down, which leads to the problem that the sleeve is flattened and the attenuation of the optical fiber is unqualified.

Images