A kind of cable collection molding device

Abstract

The invention discloses a cable set inlet-mould device which comprises a base, a support, two upper guide wheels, two lower guide wheels, an adjusting block, a spring and an ejection rod. A fixing block is arranged on the upper end of the support, the ejection rod is mounted on the fixing block, the lower end of the ejection rod and an ejection rod body form a stepped surface, the spring is sleeved at the lower end of the ejection rod, one end of the spring butts against the stepped surface, the other end of the spring butts against the adjusting block, the adjusting block is fixed on the support through an adjusting bolt, the two upper guide wheels are fixed on the adjusting block through connecting shafts, the two lower guide wheels are fixed on the support through connecting shafts, grooves are formed in the upper guide wheels and the lower guide wheels, two adjusting grooves are formed in the support, positions of the adjusting block and the connecting shafts in the adjusting grooves are adjusted through adjusting bolts, and the lower end of the support is connected with the base. By the device, stability of impedance and differential to common mode conversion is improved, and the problem that attenuation is increased suddenly in a certain frequency caused by periodic impact is solved.

Description

technical field [0001] The invention relates to a cable production device, in particular to a cable collection molding device. Background technique [0002] The quality of parallel wire pair aluminum foil and hot-melt polyester tape coating greatly affects the electrical performance of high-speed parallel cables. The original equipment and technology used steel circular molds. The mold aperture was larger than the widest dimension of the parallel pair. Or polyester tape operation, as the aluminum foil or polyester tape rotates, a point of the wire is in contact with the mold under the tension of the tape. From the looks of it, this kind of deformation appears as a periodic helical line. This kind of periodic deformation causes problems such as attenuation at a certain frequency point where the attenuation increases sharply (the attenuation peak appears), and the impedance and differential conversion to the same mode and other indicators are caused. Electrical failure, etc.,...

AI Technical Summary

Problems solved by technology

[0002] The quality of parallel wire pair aluminum foil and hot-melt polyester tape coating greatly affects the electrical performance of high-speed parallel cables. The original equipment and technology used steel circular molds. The mold aperture was larger than the widest dimension of the parallel pair. Or polyester tape operation, as the aluminum foil or polyester tape rotates, a point of the wire is in contact with the mold under the tension of the tape. From the looks of it, this kind of deformation appears as a periodic helical line. This kind of periodic deformation causes problems such as attenuation at a certain frequency point where the attenuation increases sharply (the attenuation peak appears), and the impedance and differential conversion to the same mode and other indicators are caused. Electrical failure, etc., the higher the test frequency, the more obvious these electrical failures are, which is one of the main reasons why the wire cannot pass the high-frequency test; another point is that the aluminum foil or polyester tape will be scratched and broken if the force is too high.

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