Cabling filling material injection device and injection method

Abstract

The invention relates to the technical field of cables, in particular to a cable cabling filling material injection device and an injection method. The shaping mold is provided with a feeding port used for enabling a wire core to enter the shaping mold, an accommodating cavity communicated with the feeding port and used for accommodating a foaming material, a doubling shaping module used for stranding and shaping the wire core, and a discharging port used for outputting a stranded cable core which is formed and shaped after stranding the wire core. And the shaping mold is also provided with an injection channel which is communicated with the accommodating cavity and is used for injecting a foaming material. The method has the effect of improving the filling degree of the gaps among the wire cores in the wire core cabling process of the cable.

Description

technical field [0001] The present application relates to the technical field of cables, and in particular, to a cable cabling filling material injection device and injection method. Background technique [0002] During the twisting process of the cable insulation core, filling is the main factor affecting the roundness of the cable. When the cable core is cabling, there are some large gaps between the core and the core. It is difficult to ensure the roundness of the core when filling with filler materials, especially when the two-core, three-small, three-two, and four-small cables are cabled, the filling requirements are higher. Therefore, the filling is unreasonable. It is also one of the main factors affecting the roundness of the cable. [0003] In order to ensure the roundness of the cable, a certain amount of material is filled in the stranded wire during the cabling process. On the one hand, the mutual friction between the core wires is avoided, so that the stranded ...

AI Technical Summary

Problems solved by technology

[0004] At present, ordinary power cables mainly use PP ropes, polypropylene mesh-filled ropes, polypropylene tear film strips and foamed cross-linked polyethylene prefabricated strips, etc., so that the insulated cores are prone to filling the gaps between the insulated cores during the stranding process. The material is not full, resulting in gaps in the insulating core, and the cable is rope-shaped after cable formation, causing the cable surface to be unrounded, twisted, triangular or square, etc., which affects the appearance quality of the cable; the insulated core is stranded If there is too much filling material in the gap between the insulated cores during the bonding process, it will cause part of the filling material to protrude or cover the outer surface of the core, making the surface of the cable uneven, and the roundness of the cable cannot be guaranteed.

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