Feeding mechanism for producing optical fiber prefabricated rod

Abstract

The invention relates to a feeding mechanism for producing an optical fiber prefabricated rod. The feeding mechanism is positioned on a rack; the feeding mechanism comprises a lifting mechanism, a transverse moving mechanism and a rotating mechanism; the transverse moving mechanism is arranged on the lifting mechanism; the rotating mechanism is arranged on the transverse moving mechanism; a targetrod is mounted on the rotating mechanism; the rotating mechanism comprises a rotating motor, a rotating bracket, a rotating base and a rotating disc; the rotating bracket is fixed on the transverse moving mechanism; the rotating motor is fixed on the rotating bracket; the rotating base is rotationally arranged on the rotating bracket; the rotating motor is rotationally connected with the rotatingbase; the rotating base is fixed with the rotating disc. By adopting the feeding mechanism for producing the optical fiber prefabricated rod, a material can be uniformly sprayed and deposited on a target rod by using a blowtorch mechanism, torch firing is lifted gradually, and thus uniformity of the optical fiber prefabricated rod can be maintained.

Description

Technical field [0001] The invention relates to the field of manufacturing optical fiber preforms, in particular to a feeding mechanism for producing optical fiber preforms. Background technique [0002] The optical fiber preform is a silica glass rod with a specific refractive index profile and used to manufacture optical fiber (optical fiber for short). The preforms generally have a diameter of several millimeters to several tens of millimeters (commonly known as light rods). The internal structure of the optical fiber is formed in the preform. Because the production of preforms is the most important part of the optical fiber process, since the beginning of mass production of optical fibers in the late 1970s, the research and improvement of optical fiber preform manufacturing technology has never been interrupted. [0003] In the manufacturing process of optical fiber preforms, the outer coating is often prepared by the OVD method, which has the advantages of high efficiency, s...

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Problems solved by technology

[0005] However, the above-mentioned preparation device cannot be rotated, so that only static deposition can be performed on the target rod, and the ejected gas is concentrated at the position facing the torch, which limits the further improvement of the uniformity and adjusts the uneven dust deposition of the target rod At this time, the accuracy of the blowtorch spraying and deposition on the target rod cannot be guaranteed, which makes the overall unevenness of the optical fiber preform

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