Stretcher and plastic optical fiber stretching method

Abstract

The invention relates to a stretcher and a plastic optical fiber stretching method. The stretcher comprises a heating box (21) and a refrigerating box (31), wherein a plastic optical fiber (1) firstly enters the heating box (21) to be treated, and the heating box (21) plays a role in changing the shape of the plastic optical fiber (1); and then the plastic optical fiber (1) enters the refrigerating box (31) to be treated, and the refrigerating box (31) plays a role in solidifying the heated plastic optical fiber (1). The stretcher is characterized in that an optical fiber rotary heating device (5) is arranged at an inlet of the heating box (21), an optical fiber rotary heating device (5) is also arranged at an outlet of the refrigerating box (31), and the two optical fiber rotary heating devices (5) synchronously work to enable the top and the bottom of the plastic optical fiber (1) in the heating box (21) to replace heating positions so as to realize uniform heating.

Description

technical field [0001] The invention relates to a stretching machine and a stretching method, in particular to an optical fiber stretching machine and a plastic optical fiber stretching method. Background technique [0002] The plastic optical fiber is a full circle, but the fiber needs to be straightened before use. [0003] At present, there is no special equipment for straightening the optical fiber. In the prior art, the optical fiber is manually soaked in hot water, or manually pulled through water vapor to shape and straighten. However, the above-mentioned process in the prior art causes technical defects of high stretching cost and poor stretching effect. [0004] In addition, the heated air in the heating box moves from bottom to top, and the bottom of the fiber is easily heated and deformed, but the temperature and softening speed of the top of the fiber are worse than that of the bottom of the plastic fiber. Inconsistency with the bottom shrinkage will affect the...

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Problems solved by technology

[0003] At present, there is no special equipment for straightening optical fibers. In the prior art, the optical fibers are manually soaked in hot water, or artificially pulled through water vapor to shape and straighten.

However, the above-mentioned process in the prior art causes high stretching cost and technical defects of poor stretching effect

[0004] In addition, the heated air in the heating box moves from bottom to top, and the bottom of the fiber is easily heated and deformed, but the temperature and softening speed of the top of the fiber are worse than that of the bottom of the plastic fiber. Inconsistent with the bottom shrinkage, it will affect the quality of the product

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