Adjustable optical fiber pre-tightening device

Abstract

The invention discloses an adjustable optical fiber pre-tightening device, which comprises a mounting base and pre-tightening units, wherein the pre-tightening unit comprises a Z-axis mounting assembly, an XY-axis moving platform and a pressing wheel, the XY-axis moving platform comprises a first sliding plate, a second sliding plate and a third sliding plate which are sequentially stacked, the first sliding plate can slide on the second sliding plate in the X-axis direction, the second sliding plate drives the first sliding plate to slide on the third sliding plate in the Y-axis direction, the pressing wheel is arranged on the first sliding plate, the third sliding plate is connected with the Z-axis mounting assembly, the Z-axis mounting assembly is connected with the mounting base, the two or more pre-tightening units are sequentially arranged on the mounting base at intervals in the Z-axis direction, and the pressing wheels of every two adjacent pre-tightening units are oppositely arranged on the two sides of the optical fiber in a staggered mode so as to pre-tighten optical fiber and enable the optical fiber to generate tension. According to the invention, the optical fiber generates tension and is not easy to shake or shake, so that the optical fiber which is vertically placed for a long distance is locally pre-tightened, centralized and limited, smooth production and manufacturing of the optical fiber are ensured, and the product percent of pass is improved.

Description

technical field [0001] The invention belongs to the technical field of optical fiber production and manufacturing, and more specifically relates to an adjustable optical fiber pretensioning device. Background technique [0002] In the production process of the existing optical fiber, the preform crystal heated at high temperature uses the effect of self-weight sagging and bottom traction to produce continuous optical fiber. The entire stretching process is about 4-5 stories high, although there are pulleys at the bottom , with a certain tension effect, but the overly long suspended part in the middle still has a large room for movement. [0003] At present, the existing method is to set several ring-shaped hollow baffles in sections in the middle of the overly long suspended part to limit the range of motion of the optical fiber, but this only limits the wide-range swing of the optical fiber, and there are still the following problems: the ring-shaped hollow of the baffle I...

AI Technical Summary

Problems solved by technology

[0003] At present, the existing method is to set several ring-shaped hollow baffles in sections in the middle of the overly long suspended part to limit the range of motion of the optical fiber, but this only limits the wide-range swing of the optical fiber, and there are still the following problems: the ring-shaped hollow of the baffle If the diameter is too large, it will lose its effect. If the diameter is too small, it will cause frequent collisions between the optical fiber and the block. In addition, the frequent vibration of the optical fiber or the derailment of the optical fiber are still unavoidable.

Images