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Guide roller and optical fiber drawing device

A technology for guiding rollers and optical fibers, which is applied in transportation and packaging, conveying filamentous materials, manufacturing tools, etc. It can solve the problems of damaged optical fibers, film rupture, cracks, etc., and achieve the effect of not being easy to break and reducing the possibility of damage

Pending Publication Date: 2021-11-02
SUMITOMO ELECTRIC IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The composite ceramic coating formed on the guide roller described in Patent Document 1 above serves to protect the guide roller. The thicker the guide roller is, the less likely it is to be damaged, so it is preferable. However, if it is too thick, the coating will break and cause Crack, which can damage the fiber if it rubs against the fiber

Method used

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  • Guide roller and optical fiber drawing device
  • Guide roller and optical fiber drawing device
  • Guide roller and optical fiber drawing device

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no. 1 Embodiment approach

[0034] Below, based on Figures 1 to 4B , the guide roller and the optical fiber drawing device according to the first embodiment of the present invention will be described.

[0035] In addition, this invention is not limited to these illustrations but is shown by a claim, and the meaning of a claim and equality and all the changes within a range are included.

[0036] In addition, in the following description, the structure to which the same code|symbol is attached|subjected also in a different drawing is the same structure, and the description may be abbreviate|omitted.

[0037] [Overview of Optical Fiber Drawing Device]

[0038] First, use figure 1 The outline of the optical fiber drawing device 100 according to the first embodiment of the present invention will be described.

[0039] figure 1 It is a schematic diagram of the optical fiber drawing device 100 according to the first embodiment.

[0040] Such as figure 1 As shown, in the optical fiber drawing apparatus 1...

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Abstract

The invention provides a guide roller and an optical fiber drawing device which are not easy to damage an optical fiber and are excellent in durability. An aluminum guide roller (150) for changing the direction of travel of an optical fiber (G3) has a rotation axis (C) and a groove (154) formed along the direction of travel of the optical fiber (G3), the groove (154) has a first side surface (154a) and a second side surface (154b) facing the first side surface (154a), and a coating layer (155) is formed, the distance (X) between the first side surface (154a) and the second side surface (154b) gradually decreases toward the rotation axis (C), and the distance (X) between the first side surface (154a) and the second side surface (154b) gradually decreases toward the rotation axis (C). The coating layer (155) is configured from an aluminum oxide coating film (155a) formed on the first side surface (154a) and the second side surface (154b), and a composite ceramic coating film (155b) covering the aluminum oxide coating film (155a), and the thickness of the coating layer (155) increases as the coating layer (155) moves away from the rotation axis (C).

Description

technical field [0001] The invention relates to a guide roller and an optical fiber drawing device. Background technique [0002] The optical fiber obtained by covering the glass fiber with resin is transported while being guided by guide rollers in the drawing process, the subsequent coloring process, or the rewinding process to another bobbin or the like. [0003] Conventionally, as a guide roller, there is known a guide roller having a V-shaped groove having a valley portion formed with a surface in contact with an optical fiber, and a tapered portion whose diameter gradually increases from the valley portion toward the axial direction (e.g. , refer to Patent Document 1). [0004] A composite ceramic coating is formed on the surface of the guide roller, making it less likely to be worn. [0005] Patent Document 1: Japanese Patent Laid-Open No. 2013-28513 [0006] The composite ceramic coating formed on the guide roller described in Patent Document 1 above serves to pro...

Claims

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Application Information

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IPC IPC(8): C03B37/03B65H57/14
CPCC03B37/03B65H57/14
Inventor 幅崎利已长谷川慎治赫恒升常石克之小林弓月
Owner SUMITOMO ELECTRIC IND LTD
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