Optical fiber preform suspension device

Abstract

An optical fiber preform suspension device belongs to the technical field of auxiliary facilities for optical fiber production. Including quartz hanging rod and optical fiber preform restricting mechanism, features: it also includes a three-jaw chuck, on the hanging rod platform, it forms a quartz hanging rod cavity, the upper end of the quartz hanging rod is fixed with the three-jaw chuck, and a set is set in the middle The tail shank defines the screw holes, and a pair of pin shaft holes are opened corresponding to the position below a group of tail shank limit screw holes, and a flange-shaped stopper is formed on the outer wall of the lower end of the quartz hanging rod; the optical fiber preform restricting mechanism includes left, The right semicircle retaining pin ring, the pin shaft and a set of tail handle limit screws, the pin shaft is inserted in a pair of pin shaft holes, a set of tail handle limit screws are distributed on a set of tail handle limit screw holes, the left and right semicircle stops The pin rings are fixed on the outer wall of the quartz hanging rod in a state corresponding to the pin shaft in a state of facing each other, and are fixed to the end of the pin shaft. Make the mold more simple; there will be no shaking phenomenon caused by eccentricity; ensure safety.

Description

Technical field [0001] The invention belongs to the technical field of auxiliary facilities for optical fiber production, and specifically relates to an optical fiber preform suspension device. Background technique [0002] The aforementioned optical fiber preform is a raw material for manufacturing silica series optical fibers, specifically, a large preform used for drawing optical fibers (ie, optical fibers), which is usually made by sintering silica particles. As known in the industry, in the process of drawing the optical fiber from the preform rod, that is, the optical fiber preform rod, the preform rod needs to be suspended and fixed on the suspension device. [0003] The technical information of various optical fiber preform suspension devices can be seen in the published Chinese patent documents. A typical example is the invention patent authorization announcement number CN102211864B recommends "a suspension device for optical fiber preforms". figure 2 As shown, it includes...

AI Technical Summary

Problems solved by technology

But there is following shortcoming: one, owing to have used the eccentric ring that has keyhole, thereby need to make the end of optical fiber preform tail handle form a ball head that can be limited by keyhole, so cause certain difficulty to the processing of optical fiber preform Difficulty; second, because the optical fiber preform hangs on the optical fiber preform limiting mechanism with respect to the quartz hanging rod in an eccentric state, that is to say, the longitudinal center of the optical fiber preform is not consistent with the longitudinal center of the quartz hanging rod, and because The ball head at the end of the optical fiber preform tail handle is in an unfixed free state, so it is inevitable that there will be swaying during the drawing of the optical fiber, and there may even be accidents caused by the ball head jumping out of the opening slot that passes through the lock hole. Yu

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