Low-resistance galvanized steel wire tool suitable for butterfly-shaped optical cable and manufacturing method thereof

Abstract

The invention provides a low-resistance galvanized steel wire tool suitable for a butterfly-shaped optical cable. The contact surface of a galvanized steel wire and a diameter bearing hole of a mold core is made to be less, and the mold core can be timely discharged due to slight accumulation during over-mold production, so that the normal feeding of the galvanized steel wire is ensured, and the continuous production of the butterfly-shaped optical cable is ensured. A concave cavity is arranged on the central end face, facing the mold core, of a mold sleeve, a front convex structure is arranged at the position, corresponding to the concave cavity, of the mold core, the central area of the front convex structure is a flat plate structure, the penetrating diameter bearing hole is arranged at the central position of the flat plate structure, the periphery, relative to the diameter bearing hole, of the front convex structure is specifically a flaring structure from front to back, and the rear area, corresponding to the diameter bearing hole, of the flaring structure is a cavity, the cavity is a flaring cavity body from front to back, the tail end of the rear part of the flaring structure is connected with the first periphery of the mold core, at least two concave connecting holes which are concave in the thickness direction are distributed on the periphery of the mold core, and the concave connecting holes are arranged towards the second periphery of the mold sleeve.

Description

technical field [0001] The invention relates to the technical field of making butterfly optical cables, in particular to a small-resistance galvanized steel wire tooling suitable for butterfly optical cables, and the invention also provides a manufacturing method of the tooling. Background technique [0002] In the production process of butterfly optical cable, because the metal reinforcement is generally high-strength galvanized steel wire or phosphating steel wire, there is dust accumulation on the surface or a small amount of surface layer is easy to fall off due to the weak surface coating, resulting in the falling off in the mold core of the plastic extruder. Accumulated inside, formed oxides after heating, blocked the core opening, and finally caused the steel wire to break, resulting in substandard products in the production line, which seriously affected the production efficiency and product quality. Contents of the invention [0003] In view of the above problems,...

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Problems solved by technology

[0002] In the production process of butterfly optical cable, because the metal reinforcement is generally high-strength galvanized steel wire or phosphating steel wire, there is dust accumulation on the surface or a small amount of surface layer is easy to fall off due to the weak surface coating, resulting in the falling off in the mold core of the plastic extruder. Accumulate in the interior, form oxides after heating, block the core opening, and eventually lead to steel wire breakage, resulting in substandard products in the production line, seriously affecting production efficiency and product quality

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