Yarn unwinding system for cable and using method of yarn unwinding system

Abstract

The invention relates to a yarn unwinding system for a cable and a using method of the yarn unwinding system. The yarn unwinding system comprises a hollow main shaft which can rotate around the axis of the hollow main shaft and is used for a cable core to pass through, and a yarn channel for yarn to pass through is arranged on the peripheral surface of the hollow main shaft; the yarn unwinding system further comprises a yarn storage barrel which can rotate around the axis of the yarn storage barrel and is used for winding yarn, and the yarn storage barrel and the hollow main shaft are coaxially arranged; the yarn unwinding system further comprises a detection device which is used for detecting the position of a yarn retreating point and comprises a first sensor and a second sensor which are distributed on the upstream of the hollow main shaft at intervals in the cable core advancing direction, and the yarn retreating point is the intersection point of the yarn and the cable core; the yarn retreating point is provided with a safety area, and the first sensor is configured to be triggered when the yarn retreating point leaves the safety area in the direction opposite to the advancing direction of the cable core; and the second sensor is configured to stop being triggered when the yarn retreating point leaves the safety area in the advancing direction of the cable core. The problem that the actual position of the yarn cannot be judged in the prior art, so that the yarn enters yarn unwinding equipment due to the too low yarn unwinding speed, or the yarn is broken due to the too high yarn unwinding speed can be solved.

Description

technical field [0001] The present application relates to the technical field of cable production, in particular to a yarn unwinding system for cables and a method for using the same. Background technique [0002] In the cable forming process, due to various unforeseen problems, a large number of cabled cores need to be uncabled every year, and materials such as sleeves must be recycled. [0003] In the related technology, when the yarn is automatically withdrawn, there is a pull-back force in the cable core, which causes the pitch of the yarn on the cable core to be different, so that the speed of the yarn withdrawal needs to be adjusted continuously, and the actual position of the yarn cannot be judged only based on the tightness of the yarn. , This will easily cause the yarn to drill into the yarn-removing device due to the slow yarn-removing speed or the yarn-retracting point will move forward (in the direction of the pay-off frame) due to the too fast yarn-removing spee...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a yarn-removing system for cables and its use method, to solve the problem that the actual position of the yarn cannot be judged in the related art, causing the yarn to get into the yarn-removing equipment or The problem of yarn breakage caused by too fast withdrawal speed

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