Longitudinal flat overlapping joint die of cable Al-plastic composite tape

Abstract

The invention relates to a longitudinal flat overlapping joint die of a cable Al-plastic composite tape, which is a closed die and provided with an Al-plastic composite tape guide groove and a coned overlapping cavity that are connected together, a cable core guide pipe is arranged in the Al-plastic composite tape guide groove, the coned overlapping cavity is provided with a circular outlet, and the wall of the coned overlapping cavity is provided with a plurality of holes. The invention has the advantages of less quantity of dies and simple structure, can reduce the die cost and the strip breakage rate of the Al-plastic composite tape because the Al-plastic composite tape is not embossed in advance when wrapping, improves the production speed and the longitudinal overlapping quality of the Al-plastic composite tape, and ensures that the cable has excellent waterproof and moisture-preventing properties.

Description

technical field [0001] The invention relates to a component in optical cable production equipment, in particular to a mold in a longitudinal wrapping device for an aluminum-plastic composite tape of an optical cable. Background technique [0002] In order to enhance the waterproof and moisture-proof performance of the optical cable, it is generally necessary to longitudinally wrap a layer of aluminum-plastic composite tape outside the cable core of the optical cable. The longitudinal wrapping mold used in the existing longitudinal wrapping device for aluminum-plastic composite tapes of optical cables is arranged between the preforming die and the sizing die, and is composed of a horn die, an overlapping die and a tapered die. Before the preforming die, it is necessary to set up an embossing machine to pre-emboss the aluminum-plastic composite strip. This type of optical cable aluminum-plastic composite tape longitudinal wrapping device has a large number of molds, high cost...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the existing longitudinal wrapping dies for aluminum-plastic composite tapes for optical cables, the present invention provides a lap joint die for longitudinal flat wrapping of aluminum-plastic composite tapes for optical cables. Between the sizing dies, it replaces the horn die, lap die and tapered die in the mold of the existing optical cable aluminum-plastic composite tape longitudinal wrapping device. Moreover, the aluminum-plastic composite tape does not need to be pre-embossed before longitudinal wrapping, and can be directly The aluminum-plastic composite tape is longitudinally flat-wrapped, and the lap joint of the aluminum-plastic composite tape after flat-wrapping will not produce lap gaps, and the aluminum-plastic composite tape that has not been embossed is also less likely to break when it is longitudinally wrapped

Images