Production method of cable with small bending radius

Abstract

The invention discloses a production method of a cable with a small bending radius, comprising: S1, a plurality of discrete conductors are polymerized through a branching polymerization mechanism to form a unit to be twisted; S2, the unit to be twisted is sent to the twisting mechanism for twisting S3, the stranding unit passes through the first extruder of the first extruder under the traction of the first traction mechanism, and the first extruder extrudes the insulating material and combines it with the stranding unit surface, so that an insulating layer is formed on the surface of the stranding unit to obtain a single insulated wire core; S4, a plurality of insulated wire cores are twisted by a cable forming machine to obtain a cable core; S5, the cable core obtained in step S4 is passed through After weaving by the braiding machine, a shielding layer is formed on the surface of the cable core; S6, the cable core braided with the shielding layer passes through the second extruder of the second extruder under the traction of the second traction mechanism, and forms a shielding layer on the surface of the shielding layer. Sheath to get a small bend radius cable. The invention has the advantage of avoiding conductor jumping.

Description

technical field [0001] The invention relates to the technical field of cable manufacturing, in particular to a production method of a cable with a small bending radius. Background technique [0002] At present, cables play an indispensable role in the power system, and there are many cable constructions, so they are often used in spaces with relatively narrow bending radii, so the fifth and sixth conductors are used. The fifth type of conductor is a soft conductor; the sixth type of conductor is a softer conductor than the fifth type. [0003] Relative to conductors with small cross-sections, such as 0.2mm 2 , 0.35mm 2 , 0.5mm 2 , 0.75mm 2 In order to meet the flexibility of the cable, the fifth and sixth types of conductor bundles are often used to produce small bending radius cables (usually the bending radius of the small bending cable is 5 times its diameter), and the small bending radius cable consists of several insulated cores It is composed of a braided shieldin...

AI Technical Summary

Problems solved by technology

[0007] However, with the long-term use of the deflection-free head and the guide wheel, both of them will be worn to varying degrees, which will cause the center of the wire and the extruder without deflection-free extrusion when the wire enters the deflection-free extrusion head. The center of the machine head is not on the same straight line, resulting in that after the insulation is extruded, the center of the insulation layer and the wire cannot be concentric

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