Four-head longitudinal wrapping die

Abstract

The invention belongs to the cable appliance technology field, and particularly relates to a four-head longitudinal wrapping die. The invention discloses a four-head longitudinal wrapping die, which comprises a die body; a plurality of line pair aluminum foil-wrapping channels are installed on the die body; a plurality of wire air current outlets are installed on the die body and surround the line pair aluminum foil-wrapping channels; an annular hollow band is installed inside the die body; the air current outlets are communicated with the annular hollow band; an air penetration inlet is installed at the lateral part of the die body; the air inlet is communicated with the annular hollow band; and the air inlet, the annular hollow band and the air current outlets form an air blowing heat radiation apparatus. The beneficial effects of the present invention are that the tightness of the aluminum foil-wrapped line pairs is the same; the capacitance of four line pairs is uniform and consistent, which is convenient for die heat radiation and installing the air blowing apparatus for cooling and blowing aluminum powder.

Description

technical field [0001] The invention belongs to the technical field of cable appliances, in particular to a four-head longitudinal wrapping mold. Background technique [0002] In line pair shielding, longitudinal wrapping is generally the main method, while conventional longitudinal wrapping molds use iron molds and plastic molds. Both molds have their own advantages and disadvantages. The iron mold is wear-resistant, and will not cause poor aluminum foil coating due to excessive mold holes as the production time becomes longer. However, the friction coefficient is large, and it is easy to conduct heat, resulting in damage to the aluminum base, excessive heat and friction. Aluminum powder is also easy to break the aluminum foil, which is not suitable for high-efficiency production mode. Although plastic molds can solve the problems of aluminum base damage and easy breakage of aluminum foil, due to the poor wear resistance of plastic molds, after 24 hours of continuous prod...

AI Technical Summary

Problems solved by technology

The iron mold is wear-resistant, and will not cause poor aluminum foil coating due to excessive mold holes as the production time becomes longer. However, the friction coefficient is large, and it is easy to conduct heat, resulting in damage to the aluminum base, excessive heat and friction. Aluminum powder is also easy to break the aluminum foil, which is not suitable for high-efficiency production mode

Although plastic molds can solve the problems of aluminum base damage and aluminum foil breakage, due to the poor wear resistance of plastic molds, after 24 hours of continuous production, the mold will be replaced due to serious wear, which is not ideal in terms of time and cost efficiency.

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