Leaky cable wrapping forming method

Abstract

The invention discloses a leaky cable wrapping forming method which comprises a longitudinal wrapping platform. The longitudinal wrapping platform is sequentially and coaxially equipped with a first longitudinal wrapping forming die, a second longitudinal wrapping forming die, a longitudinal wrapping forming conical barrel, a lapping die, a first sizing die and a second sizing die. Die cavities of the first longitudinal wrapping forming die and the second longitudinal wrapping forming die are connected into a whole streamline die cavity. The longitudinal wrapping platform is equipped with a core shaft support; the core shaft support is equipped with a core shaft; the core shaft is arranged in the whole streamline die cavity; and the core shaft cooperates with the first longitudinal wrapping forming die and the second longitudinal wrapping forming die to form a longitudinal wrapping type cavity. The method solves the problems of deformation of slots in a copper strip, tensile failure and position change of the copper strip since the copper strip does not swing left and right in the forming process, so that the quality of the product is improved, and higher uniformity is realized; and since the existence of a tongue coating, the two side edges of the copper strip are allowed to be always in the same position, the case of cross folding is prevented, and the qualified rate of the product is improved.

Description

technical field [0001] The invention relates to a mold for the communication cable manufacturing industry, in particular to a wrapping molding method for leaky cables. Background technique [0002] Leaky cable is the abbreviation of leaky coaxial cable (Leaky Coaxial Cable), which consists of four parts: inner conductor, insulating medium, outer conductor with periodic slots and sheath. During the transmission of the radio frequency signal inside the leaky cable, a part of the radio frequency signal is coupled to the external space through the outer conductor hole; the radio frequency signal in the outer space can also be coupled to the inside of the cable through the outer conductor hole. Therefore, the leaky cable has the dual functions of a radio frequency signal transmission line and a transceiver antenna. It is generally used in specific spaces where communication antennas are difficult to function, especially in specific spaces where separate antennas in mobile commun...

AI Technical Summary

Problems solved by technology

The longitudinal wrapping platform is the reference working platform, and its surface is flat. The first longitudinal wrapping die, the second longitudinal wrapping die, the longitudinal wrapping cone, the lapping die, and the first sizing die are successively installed on the longitudinal wrapping platform. , and the second sizing die, the first longitudinal wrapping die and the second longitudinal wrapping die cooperate to form an inner streamlined mold cavity, a mandrel is fixed in the die cavity, and the mandrel is fixed on the longitudinal On the wrapping platform, the gap space between the mandrel and the mold cavity is used as the movement forming space of the copper strip. After the copper strip passes through the mold cavity, the copper strip and the cable core enter the longitudinal wrap forming conical cylinder at the same time, and then pass through the overlapping die, After the first sizing die and the second sizing die come out, the copper tape is wrapped longitudinally on the cable core to form the outer conductor of the leaky cable, and then squeezed on the sheath synchronously to form a leaky cable. Compared with the current process die, the present invention The leaky cable after processing, because the copper strip will not swing left and right during the forming process, completely solves the problems of copper strip slot deformation, copper strip breakage and position change, which improves product quality and achieves higher uniformity sex

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