Wrapping rod group used for aviation data bus to improve film wrapping accuracy

An aviation data bus and wrapping technology, which is applied in the direction of conductor/cable insulation, etc., can solve the problems of increasing the outer diameter of the insulation and increasing the dielectric constant index of the insulation, so as to achieve a small dielectric constant, realize high-precision processing, reduce The effect of wrapping angle

Active Publication Date: 2022-04-08
江苏通光电子线缆股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to propose a wrapping rod set for the aviation data bus to improve the wrapping accuracy of the film, so as to solve the problem that the outer diameter of the insulation shrinks under the effect of high temperature to increase the dielectric strength of the insulation during the insulation and sintering process of such wires. constant index problem

Method used

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  • Wrapping rod group used for aviation data bus to improve film wrapping accuracy
  • Wrapping rod group used for aviation data bus to improve film wrapping accuracy
  • Wrapping rod group used for aviation data bus to improve film wrapping accuracy

Examples

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Effect test

Embodiment 1

[0027] The wire insulation in the 1394B data bus with 24AWG wire gauge is wrapped, and the insulating medium is required to be wrapped with microporous polytetrafluoroethylene film and wrapped with polytetrafluoroethylene raw material tape. After sintering, the dielectric constant is 1.5 to 1.55. After the process is processed, the outer diameter of the wire will be reduced by about 30% during sintering. When the outer diameter reaches the specified value after sintering, the dielectric constant is 1.7-1.75; with the wrapping rod set of the present invention, the wrapping angle is reduced to 15° , The outer diameter of the wire becomes smaller by about 10% during sintering, and the dielectric constant meets the requirements. The specific operation is as follows:

[0028](1) The selected length of the wrapping rod group is 400mm, and the size of the wire hole is 1.5mm. Set the density to 0.7g / cm 3 , the polytetrafluoroethylene microporous membrane with a width of 7mm is insta...

Embodiment 2

[0035] (1) The selected length of the wrapping rod group is 500mm, and the size of the wire hole is 2mm. Install the polytetrafluoroethylene raw material tape with a density of 1.6 and a width of 6mm on the wrapping head of the wrapping machine, and pull out the core wire with an outer diameter of 1.40mm wrapped around the microporous tape from the discharge end of the wrapping machine. Pass through the wire hole of the wrapping head and the wire hole of the wrapping rod group, install the metal inner conductor on the traction wheel, and finally connect it to the take-up reel.

[0036] (2) Install the wrapping rod set on the wrapping head of the wrapping machine and fix it. Lead out the PTFE raw material tape, pass through the thread guide wheel on the wrapping head, pass through the threading hole in the wrapping rod group, wind around the inner core wire for several turns, and fix it on the core wire.

[0037] (3) Pass the shaping guide rod through the first threaded hole a...

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Abstract

The invention discloses a wrapping rod set for improving the wrapping precision of a film by an aviation data bus, which is used in conjunction with a wrapping head of a constant tension tape unwinding and wrapping machine. The wrapping rod set comprises a tight fitting part, a wrapping shaft Rod, fixed gasket, fixed spacer and shaping guide rod, in which the tight fitting parts are fixed to the wrapping head and the wrapping shaft, and there is a wire hole inside to pass through the metal inner conductor, and the wrapping shaft is connected with the wire hole. Through the hole through the belt, the combination of the fixed gasket and the fixed spacer block is connected to the outer end face of the tight fitting part and can be adjusted in the orthogonal direction, and the angle between the guide rod is connected to the fixed spacer block and the angle between the wrapping shaft Adjustable and locked, the wrapping tape is guided by the shaping guide rod and is wound on the metal inner conductor from the tape hole, and the wrapping angle can be adjusted to a lower limit of 15°. The application of the wrapping rod group of the present invention can realize the shaping of wrapping tapes and the high-precision film wrapping processing; it is also beneficial to realize the high-precision processing of high-performance data bus wrapping insulation and small dielectric constant.

Description

technical field [0001] The invention relates to a wrapping production tooling, in particular to a tooling rod set used for producing aviation data buses and performing high-precision film wrapping. Background technique [0002] With people's curiosity about space and the pursuit of space exploration, various large-scale facilities such as ultra-long-distance telescopes, ground detectors, and space stations have been built, put into production, and applied on a large scale. In this way, people's cognition of the outer space of the earth where we live is constantly expanding and breaking through cognition. In various types of avionics systems, signal transmission such as output control and image feedback is the main carrier of information interaction between different devices and between devices and ground staff. Initially, people used the 1553B data bus as the medium of signal transmission. With the development of highly integrated avionics technology, higher requirements ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/10
CPCH01B13/10
Inventor 单海龙彭晓鹏张仁杰陈君
Owner 江苏通光电子线缆股份有限公司
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