Longitudinal wrapping integrated die for horizontal pair-twisted cable

Abstract

The invention discloses a longitudinal wrapping integrated die for a horizontal pair-twisted cable. The longitudinal wrapping integrated die comprises a fixing base; a plurality of sizing dies are arranged in the fixing base in a penetrating mode; a connecting part protruding out of the fixing base is arranged at one end of each sizing die; a metal connecting sleeve is arranged on the outer side of each connecting part in a sleeving mode; an aluminum foil longitudinal wrapping die is arranged in each metal connecting sleeve in a penetrating mode; and a threading pipe is arranged in each aluminum foil longitudinal wrapping die. According to the longitudinal wrapping integrated die for the horizontal pair-twisted cable, on one hand, the multiple pair-twisted wires can be wrapped by aluminumfoil at the same time, and the process of independently wrapping the aluminum foil is omitted, so that the production efficiency is improved, and the labor cost is reduced; on the other hand, the pair-twisted cables wrapped by the aluminum foil longitudinal wrapping die enter the sizing dies again for secondary coating, so that the aluminum foil is ensured not to turn over, wrinkle, expose the core wire and the like, and the aluminum foil is wrapped more roundly; and the positions of the sizing dies are gathered and fixed through the fixing base, thereby ensuring the wire outlet position of each pair-twisted cable after being wrapped, and facilitating the processing of a subsequent twisting process.

Description

technical field [0001] The invention relates to the field of communication cable production and manufacturing, in particular to a longitudinal wrapping integrated mold for horizontally twisted cables. Background technique [0002] With the development of 5G communication networks, the demand for UHF LAN connection components has increased, and the increase in network speed means that the operating frequency has increased and interference is more likely to occur. Therefore, each pair of individually shielded horizontal twisted-pair shielded cables is used. Refer to figure 1 As shown, taking the twisted pair as a unit, the outside of each pair of twisted pairs needs to be coated with a layer of aluminum foil to ensure the stability of signal transmission and improve the anti-interference ability; the stability of each aluminum foil coating directly affects The signal transmission of the finished cable has a great influence on the characteristic impedance, attenuation, return l...

AI Technical Summary

Problems solved by technology

[0004] (1) Each wire pair is individually wrapped with aluminum foil, and then stranded as a whole to form a semi-finished product. This method has low production efficiency, requires production equipment and increases labor costs for production.

[0005] (2) At the same time as the cable core is twisted, each pair of wires is longitudinally wrapped with aluminum foil, and after passing through a separate sizing mold, it is stranded into a semi-finished product. A large amount of aluminum powder will accumulate below the wires. Since there is only one sizing die for each pair of wires to form and fix the aluminum foil, it is impossible to guarantee the position of the twisted wires covered with aluminum foil relative to the cable stranding machine. When twisting the machine, there will be problems such as aluminum foil wrinkling, turning over, and lax covering, which will have a great impact on the shielding of the finished cable. Moreover, each pair of twisted-pair wires covered by a separate sizing mold has an opening The direction of the twisted wires is different, which is easy to cause crosstalk between adjacent pairs of twisted wires

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