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A device and method for improving optical fiber screening strength and coating concentricity

A technology for screening strength and concentricity, which is applied in the field of optical fiber manufacturing, can solve problems such as poor uniformity stability of the coating layer, and achieve the effects of optimizing optical fiber performance, saving operating time, and avoiding scratches

Active Publication Date: 2018-11-23
TONGDING INTERCONNECTION INFORMATION CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the difference in the mold design and the distribution of the drawing tower, the stability of the coating layer is relatively poor.

Method used

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  • A device and method for improving optical fiber screening strength and coating concentricity
  • A device and method for improving optical fiber screening strength and coating concentricity

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Embodiment Construction

[0034] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0035] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0036] Such as figure 1 and figure 2 As shown, a device for improving optical fiber screening strength and coating concentricity, including a coating mold 4 corresponding to a drawing furnace 6 and installed vertically, and a main drive wheel 1 for drawing optical fibers;

[0037] Also includes:

[0038] The position measuring instrument 5 is arranged near the lower opening of the drawing furnace 6, and is used to measure the position deviation of the bare optical fiber 3;

[0039] An automatic adjustment device, on which the coating mold 4 is installed;

[0040] PLC machine, connected with the automatic adjustment device, used to calculate the direction and value of the required po...

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Abstract

The invention provides a device and method for improving optical fiber screening strength and coating concentricity. The device comprises a fiber drawing furnace, a main driving wheel, a position measuring instrument, an automatic adjusting device and a PLC (programmable logic controller), wherein the position measuring instrument is close to a lower opening of the fiber drawing furnace and is used for measuring positional deviation of bare fiber; a coating mold is installed on the automatic adjusting device; the PLC is connected with the automatic adjusting device and used for calculating directions and values of the coating mold for position deviation and angle deflection and controlling the automatic adjusting device to drive the horizontal movement and angle deflection of the coating mold; the centers of the fiber drawing furnace, the position measuring instrument and the coating mold are on the same vertical line which is tangent to the main driving wheel. According to the device and method, positions or angles of the coating mold can be adjusted on line to enable bare fiber to pass through the center of a hole of the coating mold under any condition so as to reduce the possibility that the bare fiber is scratched by an upper mold opening, therefore, screening strength scrapping of optical fiber is optimized, and meanwhile the coating concentricity of optical fiber is increased.

Description

technical field [0001] The invention belongs to the technical field of optical fiber manufacturing, and in particular relates to a device and method for improving optical fiber screening strength and coating concentricity. Background technique [0002] For the optical fiber drawing process, the screening strength and scrapping of optical fibers has always been the most important indicator reflecting the level of process control, and it is also the largest type of scrapping. Especially with the continuous improvement of wire drawing speed, the scrapping of fiber screening strength is more and more sensitive to the control of process conditions. There are many factors and links that affect the strength of the optical fiber, such as preform cleaning, control of the cleanliness of the drawing channel / design and maintenance of the drawing furnace, etc. In addition, the influence of the coating die on the drawing strength is also very large: since the size of the preform is getti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C25/12
Inventor 沈小平蒋小强向德成徐震玥陈坤何炳费梦佳
Owner TONGDING INTERCONNECTION INFORMATION CO LTD
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